Title of Invention

LAUNDRY COMPOSITIONS

Abstract The present invention relates to a softening in the wash composition comprising a detersive surfactant other than soap which has a molecular weight lower than 1000 Daltons, a polymeric non-ionic surfactant with a molecular weight above 2200 Daltons, soap, and a cationic polymer capable of forming a complex with the soap. The invention further relates to a method to increase the deposition of soap onto a fabric surface and to a method to decrease the redeposition of soil onto fabric.
Full Text FORM - 2
THE PATENTS ACT, 1970
(39 of 1970)
&
The Patents Rules, 2003


COMPLETE SPECIFICATION
(See Section 10 and Rule 13)
LAUNDRY COMPOSITIONS
HINDUSTAN UNILEVER LIMITED, a company incorporated under
the Indian Companies Act, 1913 and having its registered office
at 165/166, Backbay Reclamation, Mumbai -400 020, Maharashtra, India

The following specification particularly describes the invention and the manner in which it is to be performed


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LAUNDRY COMPOSITIONS
FIELD OF THE INVENTION
5 This invention relates to a laundry composition. More particularly, the invention is directed to a softening in the wash laundry composition.
BACKGROUND OF THE INVENTION
0
Textile fabrics, including clothes, have traditionally been cleaned with laundry detergents. After cleaning, fabrics can often feel harsh and they will wear and lose colour over repeat wash cycles. To prevent the drawbacks of fabrics
5 feeling harsh after cleaning and those experienced by multiple wash cycles, technologies have been developed including rinse conditioners, softening detergents and anti-dye transfer agents.
0 However, existing technologies still do not fully prevent such fabric cleaning drawbacks. Thus, there is an ongoing need for products that will condition and protect fabrics from the effects of the washing process.
5 US 2004/0152617 Al and US 2004/0152616 are directed to fabric and textile conditioning compounds containing particular combinations of cationic polymers and anionic surfactants.

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US 2005/0124528 Al relates to fabric and textile conditioning compositions with improved particulate soil cleaning, containing particular combinations of cationic polymers and anionic surfactants in combination with a 5 polyvinylpyrrolidone/amphiphilic carboxy containing polymer anti-redeposition system.
There still remains a need for softening laundry detergent compositions that include cationic polymers, and which 10 maintain or improve the softening benefit to fabrics whilst avoiding or otherwise limiting any fabric cleaning negatives especially in respect to the redeposition of soil.
SUMMARY OF THE INVENTION
15
In a first aspect, this invention is directed to a softening in the wash detergent composition comprising:-
(a) at least 1% by weight of a detersive surfactant
20 other than soap, with a molecular weight below 1000
Daltons;
(b) at least 1% by weight of a C6-C30 soap;
(c) 0.005% to 5% by weight of a polymeric non-ionic surfactant having a molecular weight above 2200
25 Daltons; and,
(d) 0.001% to 15% by weight of one or more cationic
polymers capable of forming a complex with (b).
In a second aspect, this invention is directed to a method 30 for increasing the deposition of soap onto a textile, the process comprising the steps:

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(a) provision of a softening in the wash laundry composition as described herein; and,
(b) contacting one or more textile articles with the composition at one or more points during the main
5 wash of a laundering process; and,
(c) allowing the textile articles to dry or
mechanically tumble-drying them.
In a fourth aspect, the invention is directed to a method to 10 reduce the redeposition of soil onto a textile by
(a) provision of a softening in the wash laundry
composition as described herein; and,
(b) contacting one or more textile articles with the
15 composition at one or more points during the main
wash of a laundering process; and,
(c) allowing the textile articles to dry or
mechanically tumble-drying them.
20 DETAILED DESCRIPTION OF THE INVENTION
As used herein, the term "comprising" means including, made up of, composed of, consisting and/or consisting essentially of.
25 All percentages quoted are wt.% unless otherwise stated.
Except in the operating and comparative examples, or where otherwise explicitly indicated, all numbers in this description indicating amounts or ratios of material or conditions of 30 reaction, physical properties of materials and/or use are to be understood as modified by the word "about".

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As used herein, a formula shall be considered physically "stable" when after 1 week at 21 degrees Celsius it exhibits no signs of phase separation.
5 The present invention is directed to laundry compositions containing soap, a cationic polymer, a polymeric non-ionic surfactant and another detersive surfactant other than soap. The composition delivers a high level of conditioning to fabrics and also provides fewer cleaning negatives 10 (especially in respect to the redeposition of soil) in
comparison to the compositions disclosed in the background art.
Conditioning Benefits
15
The compositions of this invention are intended to confer conditioning benefits to garments, home textiles, carpets and other fibrous or fibre-derived articles. These formulations are not to be limited to just conditioning
20 benefits, however, and will often be multi-functional. As such, in addition to conditioning fibre-derived articles, they may also clean, fragrance or otherwise treat them.
The primary conditioning benefit afforded by these products 25 is softening. Softening includes, but is not limited to, an improvement in the handling of a garment treated with the compositions of this invention relative to that of an article laundered under identical conditions but without the use of this invention. Consumers will often describe an 30 article that is softened as "silky" or "fluffy", and

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generally prefer the feel of treated garments to those that are unsoftened.
The conditioning benefits of these compositions are not 5 limited to just softening, however. They may, depending on the particular embodiment of the invention selected, also provide an antistatic benefit. In addition to softening, the cationic polymer/anionic surfactant compositions of this invention are further believed to lubricate the fibres of
10 textile articles, which can reduce wear, pilling and colour fading, and provide a shape-retention benefit. This lubricating layer is also believed to provide a substrate on the fabric for retaining fragrances and other benefit agents. Furthermore, it is envisaged that the cationic
15 polymers inhibit the transfer, bleeding and loss of vagrant dyes from fabrics during the wash, preventing the reduction of colour brightness over time.
The invention provides increased cleaning benefits, or 20 otherwise limits any negative cleaning effects of the
softening system. One expression of a cleaning benefit is in respect to reducing the redeposition of soil onto fabrics during the laundry process. The anti-redeposition benefit may be characterised by a benefit in the reflectance of the 25 fabric laundered with a composition according to the
invention, in comparison to a comparative formulation.
Form of the Invention
30 The present invention can take any of a number of forms that are included as main wash products. It can take the form of

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a laundry treatment agent for the main wash, which may be dilutable or non-dilutable. The laundry treatment agent may be an isotropic liquid, a surfactant-structured liquid, a granular, spray-dried or dry-blended powder, a tablet, a
5 paste, a molded solid or any other laundry detergent form known to those skilled in the art. A "dilutable laundry treatment agent" composition is defined, for the purposes of this disclosure, as a product intended to be used by being diluted with water or a non-aqueous solvent by a ratio of
0 more than 100:1, to produce a liquor suitable for treating textiles and conferring to them one or more conditioning benefits. Water soluble sheets or sachets, such as those described in US Pat. Appl. No. 20020187909, which is incorporated herein by reference, are also envisaged as a
5 potential form of this invention. These may be sold under a variety of names, and for a number of purposes. As such, compositions intended to be used as combination detergent/softeners, along with fabric treatment agents sold for application at the beginning of a wash cycle are all
0 considered within the scope of this invention.
Particularly preferred forms of this invention include combination detergent/softener products, especially as a liquid or solid, for example a powder, and isotropic or 5 surfactant-structured liquid products intended for
application as a fabric softener during the wash cycle. The most preferred form of the invention is as a combination detergent/softener product to provide "softening in the wash".

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Softening in the Wash
By the term "softening in the wash" is meant a composition which provides a fabric softening benefit as well as 5 providing cleaning to the laundered fabric. Such a
composition can be added as part of a rnain wash product, or as a separate product for use in combination with another. However, for the purposes of this disclosure, the composition is intended for use in the main wash cycle. 10 Preferably the softening in the wash composition of the
invention is incorporated as part of a single product for use in the main wash.
pH
15
The preferred pH range of the composition is 2-12. Because many cationic polymers can decompose at high pH, especially when they contain amine or phosphine moieties, it is desirable to keep the pH of the composition below the pKa of
20 the amine or phosphine group that is used to quaternise the selected polymer, below which the propensity for this to occur is greatly decreased. This reaction can cause the product to lose effectiveness over time and create an undesirable product odour. As such, a reasonable margin of
25 safety, of 1-2 units of pH below the pKa should ideally be used in order to drive the equilibrium of this reaction to strongly favour polymer stability. Although the preferred pH of the product will depend on the particular cationic polymer selected for formulation, typically these values
30 should be below about 8.5 to 10. Wash liquor pH, especially in the case of powdered softener, and combination

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detergent/softener products, can often be less important, as the kinetics of polymer decomposition are often slow, and the time of one wash cycle is typically not sufficient to allow for this reaction to have a significant impact on the 5 performance or odour of the product. A lower pH can also aid in the formulation of higher-viscosity products.
Conversely, as the product depends on the presence of soluble anionic surfactants to provide softening, its pH
10 should preferably be above the pKa of the surfactant acids used to formulate it. In addition, aqueous detergent products, which are a highly preferred embodiment of this invention, are nearly impossible to formulate below the pKa of the surfactant acids used, as these molecules are rather
15 insoluble in water when in acid form. Again, it is
especially desirable to have the pH at least 1-2 units above the pKa of the surfactant acids, to ensure that the vast majority of anionic surfactant is present in salt form. Typically, this will suggest that the product pH should be
20 above about 4, although in certain cases, such as when
carboxylic acid salts, which often have a pKa around 4 or 5, are used, the pH of the product can need to be above about 7 or 8 to ensure effective softening. It is desirable to buffer the formulation at whatever the target pH of the
25 composition is.
Method of Use
The following details a method for softening textiles 30 comprising the steps, in no particular order of:

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a. providing a laundry detergent or fabric softener
composition as described herein, comprising soap,
at least one cationic polymer, a polymeric no-
ionic surfactant and a detersive surfactant other
5 than soap, in a ratio and concentration to
effectively soften and condition fabrics under predetermined laundering conditions;
b. contacting one or more articles with the
composition at one or more points during the main
10 wash of a laundering process; and
c. allowing the articles to dry or mechanically
tumble-drying them,
Amounts of composition used will generally range between 15 about 10 g and about 300 g total product per 3 kg of
conditioned fibrous articles, depending on the particular embodiment chosen and other factors, such as consumer preferences, that influence product use behaviour.
20 A consumer that would use the present invention could also be specifically instructed to contact the fabrics with the inventive composition with the purpose of simultaneously cleaning and softening the said fabrics. This approach would be recommended when the composition takes the form of
25 a softening detergent to be dosed at the beginning of the wash cycle.
Insoluble Matter
30 It is preferred that the compositions of this disclosure be formulated with low levels, if any at all, of any matter

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that is substantially insoluble in the solvent intended to be used to dilute the product. For the purposes of this disclosure, "substantially insoluble" shall mean that the material in question can individually be dissolved at a 5 level of less than 0.001% in the specified solvent. Examples of substantially insoluble matter in aqueous systems include, but are not limited to aluminosilicates, pigments, clays and the like. Without wishing to be bound by theory, it is believed that solvent-insoluble inorganic
10 matter can be attracted and coordinated to the cationic polymers of this invention, which are believed to attach themselves to the articles being washed. When this occurs, it is thought that these particles can create a rough effect on the fabric surface, which in turn reduces the perception
15 of softness.
In addition, as liquid compositions are a possible embodiment of this invention, and insoluble matter is often difficult to formulate into a liquid, it is further 20 desirable to minimise its level in the product. It is therefore desirable to have the liquid compositions be substantially transparent for aesthetic reasons.
Preferably, insoluble and substantially insoluble matter 25 will be limited to less than 10 wt.% of the composition,
more preferably 5 wt.%. Most preferably, especially in the case of liquid conditioning compositions, the composition will be essentially free of substantially insoluble matter.

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Composition Ingredients
Polymeric non-ionic surfactant
5 A polymeric non-ionic surfactant is included in compositions according to the invention. This non-ionic surfactant is present at a level of 0.005 to 5%, preferably from 0.01 to 4, more preferably from 0.05 to 3.5%, most preferably from 0.075 to 2.5%, for example 0.1 to 2% by weight of total 10 composition. The surfactant can be a single compound, or a mixture of two or more different polymeric non-ionic surfactants.
The surfactant has a molecular weight above 2200 Daltons; 15 preferably it has a molecular weight of less than 13000 Daltons.
The polymeric non-ionic surfactant is understood to be a surface active agent, though it need not be detersive (i.e. 20 perform a cleaning action).
Preferably the polymeric non-ionic surfactant is a block polymer. Preferably it comprises, more preferably consists of, ethylene oxide and propylene oxide blocks as described 25 hereinafter.

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(EO)x(PO)y(EO)x or
5 (PO)x(EO)y(PO)x
wherein EO represents an ethylene oxide unit, PO represents a propylene oxide unit, and x and y are numbers detailing the average number of moles ethylene oxide and propylene
10 oxide in each mole of product. Such materials tend to have higher molecular weights than most non-ionic surfactants, and as such can range between 1000 and 30000 Daltons, although the molecular weight should be above 2200 and preferably below 13000 to be in accordance with the
15 invention. A preferred range for the molecular weight of the polymeric non-ionic surfactant is from 2400 to 11500 Daltons. BASF (Mount Olive, N.J.) manufactures a suitable set of derivatives and markets them under the Pluronic trademarks. Examples of these are Pluronic (trademark) F77,
20 L62 and F88 which have the molecular weight of 6600, 2450 and 11400 Daltons respectively. An especially preferred example of a useful polymeric non-ionic surfactant is Pluronic (trademark) F77.
25 Soap
The inventive compositions include soap, herein defined as an alkali or alkaline earth metal salt of a natural or synthetic fatty acid containing between 6 and 30 carbon 30 atoms. Preferably the soap contains between C8-C26, more

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preferably C8-C24, still more preferably C3-C18 carbon atoms. The incorporation level of the soap is at least 1% by weight of the total composition, preferably from 1 to 25%, more preferably from 1 to 15%, still more preferably from 1.25 to 5 10%, most preferably from 1.5 to 8% for example from 2 to 6% by weight of the total composition. Particularly preferred forms of soap are outlined below.
Carboxylic Acid Salts
10 RXCOOM
where J? is a primary or secondary alkyl group of 5 to 29
carbon atoms and M is a solubilising cation. The alkyl
group represented by R may represent a mixture of chain
15 lengths and may be saturated or unsaturated, although it is
preferred that at least two thirds of the R groups have a
chain length of between 7 and 17 carbon atoms. Non-limiting examples of suitable alkyl group sources include the fatty acids derived from coconut oil, tallow, tall oil and palm
20 kernel oil. For the purposes of minimising odour, however, it is often desirable to use primarily saturated carboxylic acids. Such materials are well known to those skilled in the art, and are available from many commercial sources, such as Uniqema (Wilmington, Del.) and Twin Rivers
25 Technologies (Quincy, Mass.). The solubilising cation, M, may be any cation that confers water solubility to the product, although monovalent such moieties are generally preferred. Examples of acceptable solubilising cations for use with this invention include alkali metals such as sodium
30 and potassium, which are particularly preferred, and amines such as triethanolammonium, ammonium and morpholinium.

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Although, when used, the majority of the fatty acid should be incorporated into the formulation in neutralised salt form, it is often preferable to leave a small amount of free fatty acid in the formulation, as this can aid in the 5 maintenance of product viscosity.
Detersive surfactant other than soap
A detersive surfactant is herein described as a surfactant 10 (surface active agent) which also provides a detersive
function for cleaning and is suitable for laundry products.
The composition of the invention comprises at least 1% by weight of a non-soap detersive surfactant with a molecular
15 weight of below 1000 Daltons. The detersive surfactant may be a single surfactant or a mixture of surfactants. The non-soap detersive surfactant is present at a level of from 1 to 90%, preferably from 1.5 to 85%, more preferably from 2 to 80%, most preferably 4 to 75%, for Example 5 to 70%, in
20 particularly 7.5 to 50% and especially 8 to 35% by weight of total composition. In addition to the non-soap detersive surfactant defined above, which is present in compositions of the invention, there may also be present other detersive surfactants, which may have characteristics falling outside
25 the defined values for the non-soap detersive surfactants (i.e. especially other optional detersive surfactants may have a molecular weight above 1000 Daltons).
Suitable surfactants are described "Surface Active Agents" 30 Vol. 1, by Schwartz & Perry, Interscience 1949, Vol. 2 by Schwartz, Perry & Berch, Interscience 1958, in the current

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edition of "McCutcheon's Emulsifiers and Detergents" published by Manufacturing Confectioners Company or in "Tenside-Taschenbuch", H. Stache, 2nd Edn., Carl Hauser Verlag, 1981. However, it is preferred if the non-soap 5 detersive surfactant is chosen from non-ionic surfactant, anionic surfactant of mixtures thereof.
Preferred non~ionic surfactants and anionic surfactants are outlined below. 10
Anionic Surfactants
The anionic surfactants used in this invention can be any water soluble anionic surfactant other than soap. "Water 15 soluble" surfactants are, unless otherwise noted, here defined to include surfactants which are soluble or dispersible to at least the extent of 0.01% by weight in
distilled water at 25 C. "Anionic surfactants" are defined
herein as amphiphilic molecules comprising one or more 20 functional groups that exhibit a net anionic charge when in aqueous solution at the normal wash pH of between 6 and 11.
If anionic surfactant is used as whole or part of the detersive non-soap surfactant, then it is preferably present
25 at a level of from 1 to 90%, preferably from 1.5 to 85%,
more preferably from 2 to 80%, most preferably 4 to 75%, for example 5 to 70%, in particularly 7.5 to 50% and especially 8 to 35% by weight of total composition. If the anionic surfactant is used as part of the detersive non-ionic
30 surfactant, then preferably the ratio of anionic surfactant

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to the total amount of other non-soap detersive surfactants is preferably from 10:1 to 1:10, more preferably from 5:1 to 1:5, for example from 4:1 to 1:4.
5 Preferred anionic surfactants are the alkali metal salts of organic sulphur reaction products having in their molecular structure an alkyl radical containing from about 6 to 24 carbon atoms and a radical selected from the group consisting of sulphonic and sulphuric acid ester radicals.
0
Although any anionic surfactant hereinafter described can be used, highly preferred anionic surfactants are the alkali and alkaline earth metal salts of either; fatty alcohol sulphates, preferably primary alkyl sulfates, more
5 preferably they are ethoxylated, for example alkyl ether sulfates (such as sodium lauryl ether sulphate), alkylebenzene sulfonates (an example is linear alkylbenzene sulfonate) and mixtures thereof. Some of these aforementioned preferred anionic surfactants are described
0 in more detail below.
Primary Alkyl Sulphates
R2OS03M
2
5 where R is a primary alkyl group of 8 to 18 carbon atoms and
2
M is a solubilising cation. The alkyl group R may have a
mixture of chain lengths. It is preferred that at least
2
two-thirds of the R alkyl groups have a chain length of 8 to
2
14 carbon atoms. This will be the case if R is coconut

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alkyl, for example. The solubilising cation may be a range of cations which are in general monovalent and confer water solubility. An alkali metal, notably sodium, is especially envisaged. Other possibilities are ammonium and substituted 5 ammonium ions, such as trialkanolammonium or trialkylammonium.
Alkyl Ether Sulphates
R30(CH2CH20)nS03M
0
3 where R is a primary alkyl group of 8 to 18 carbon atoms, n
has an average value in the range from 1 to 6 and M is a
3 solubilising cation. The alkyl group R may have a mixture
of chain lengths. It is preferred that at least two-thirds
3 5 of the R alkyl groups have a chain length of 8 to 14 carbon
atoms. This will be the case if R is coconut alkyl, for
example. Preferably n has an average value of 2 to 5. Ether sulphates have been found to provide viscosity build in certain of the formulations of this invention, and thus 0 are considered a preferred ingredient.
Fatty Acid Ester Sulphonates
R4CH(S03M)C02R5
5
4 5
where R' is an alkyl group of 6 to 16 atoms, R is an alkyl
group of 1 to 4 carbon atoms and M is a solubilising cation.
4
The group R may have a mixture of chain lengths.

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Preferably at least two-thirds of these groups have 6 to 12 carbon atoms. This will be the case when the moiety
R CH(-)CO2(-) is derived from a coconut source, for
instance. It is preferred that R is a straight chain 5 alkyl, notably methyl or ethyl.
Alkyl Benzene Sulphon ates
R ArS03M
0 where R is an alkyl group of 8 to 18 carbon atoms, Ar is a benzene ring (C5H4) and M is a solubilising cation. The
group R may be a mixture of chain lengths. A mixture of
isomers is typically used, and a number of different grades, such as "high 2-phenyl" and "low 2-phenyl" are commercially
5 available for use depending on formulation needs. A plentitude of commercial suppliers exist for these materials, including Stepan (Northfield, 111.) and Witco (Greenwich, Conn.). Typically they are produced by the sulphonation of alkylbenzenes, which can be produced by
0 either the HF-catalyzed alkylation of benzene with olefins
or an AlCl3-catalyzed process that alkylates benzene with
chlor-paraffins, and are sold by, for example, Petresa (Chicago, 111.) and Sasol (Austin, Tex.). Straight chains of 11 to 14 carbon atoms are usually preferred. 5
Paraffin sulphonates having 8 to 22 carbon atoms, preferably 12 to 16 carbon atoms, in the alkyl moiety. They are usually produced by the sulphoxidation of petrochemically-derived normal paraffins. These surfactants are

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commercially available as, for example, Hostapur SAS from Clariant (Charlotte, N.C.).
Olefin sulphonates having 8 to 22 carbon atoms, preferably 5 12 to 16 carbon atoms. U.S. Patent No. 3,332,880 contains a description of suitable olefin sulphonates, and is incorporated herein by reference. Such materials are sold as, for example, Bio-Terge AS-40, which can be purchased from Stepan (Northfield, 111.) 10
Sulphosvccinate Esters
R7OOCCH2CH (S03~M+) COOR8
7 8 are also useful in the context of this invention. R and R
15 are alkyl groups with chain lengths of between 2 and 16 carbons, and may be linear or branched, saturated or unsaturated. A preferred sulphosuccinate is sodium bis (2-ethylhexyl) sulphosuccinate, which is commercially available under the tradename Aerosol OT from Cytec Industries (West
20 Paterson, N.J.).
Organic phosphate based anionic surfactants include organic phosphate esters such as complex mono- or diester phosphates of hydroxyl- terminated alkoxide condensates, or salts
25 thereof. Included in the organic phosphate esters are
phosphate ester derivatives of polyoxyalkylated alkylaryl phosphate esters, of ethoxylated linear alcohols and ethoxylates of phenol. Also included are non-ionic alkoxylates having a sodium alkylenecarboxylate moiety
30 linked to a terminal hydroxyl group of the non-ionic through

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an ether bond. Counterions to the salts of all the foregoing may be those of alkali metal, alkaline earth metal, ammonium, alkanolammonium and alkylammonium types.
5 Other preferred anionic surfactants include the fatty acid ester sulphonates with formula:
R9CH(S03M)C02R10
0 where the moiety R CH(-)C02(~) is derived from a coconut
source and R is either methyl or ethyl; primary alkyl sulphates with the formula:
R1:L0S03M
5
wherein R is a primary alkyl group of 10 to 18 carbon
atoms and M is a sodium cation; and paraffin sulphonates, preferably with 12 to 16 carbon atoms to the alkyl moiety.
0 Other anionic surfactants preferred for use with this
formulation include isothionates, sulphated triglycerides, alcohol sulphates, ligninsulphonates, naphthelene sulphonates and alkyl naphthelene sulphonates and the like. Additional anionic surfactants, falling into the general
5 definition but not specifically mentioned above, should also be considered within the scope of this invention.

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Non-ionic Surfactant
For the purposes of this disclosure, "non-ionic surfactant" shall be defined as amphiphilic molecules which are 5 substantially free of any functional groups that exhibit a net charge at the normal wash pH of 6-11.
If non-ionic surfactant is used as whole or part of the detersive non-soap surfactant, then it is preferably present
0 at a level of from 1 to 90%, preferably from 1.5 to 85%,
more preferably from 2 to 80%, most preferably 4 to 75%, for example 5 to 70%, in particularly 7.5 to 50% and especially 8 to 35% by weight of total composition. If the non-ionic surfactant is used as part of the detersive non-ionic
5 surfactant, then preferably the ratio of non-ionic
surfactant to the total amount of other non-soap detersive surfactants is preferably from 10:1 to 1:10, more preferably from 5:1 to 1:5, for example from 4:1 to 1:4.
0 Any type of non-ionic surfactant may be used, although preferred materials are further discussed below. Highly preferred are fatty acid alkoxylates, especially ethoxylates, having an alkyl chain of from C3-C35, preferably CS-C30, more preferably C10-C24, especially C10-C13 carbon
5 atoms.
Fatty Alcohol Ethoxylates
R O (EO)

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18 Wherein R represents an alkyl chain of between 4 and 30
carbon atoms, (EO) represents one unit of ethylene oxide monomer and n has an average value between 0.5 and 20. R may be linear or branched. Such chemicals are generally 5 produced by oligomerizing fatty alcohols with ethylene oxide in the presence of an effective amount catalyst, and are sold in the market as, for example, Neodols from Shell
(Houston, Tex.) and Alfonics from Sasol (Austin, Tex.). The fatty alcohol starting materials, which are marketed under 10 trademarks such as Alfol, Lial and Isofol from Sasol
(Austin, Tex.) and Neodol, from Shell, may be manufactured by any of a number of processes known to those skilled in the art, and can be derived from natural or synthetic sources or a combination thereof. Commercial alcohol
15 ethoxylates are typically mixtures, comprising varying chain
18 lengths of R and levels of ethoxylation. Often,
especially at low levels of ethoxylation, a substantial amount of unethoxylated fatty alcohol remains in the final product, as well.
20
Because of their excellent cleaning, environmental and stability profiles, fatty alcohol ethoxylates wherein R18 represents an alkyl chain from 10-18 carbons and n is an average number between 5 and 12 are highly preferred.
25
Alkylphenol Ethoxylates
R19ArO(EO)n

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19 Where R represents a linear or branched alkyl chain
ranging from 4 to 30 carbons, Ar is a phenyl (C6H4) ring and
(EO)n is an oligomer chain comprised of an average of n
19 moles of ethylene oxide. Preferably, R is comprised of
5 between 8 and 12 carbons, and n is between 4 and 12. Such materials are somewhat interchangeable with alcohol ethoxylates, and serve much the same function. A commercial example of an alkylphenol ethoxylate suitable for use in this invention is Triton X-100, available from Dow Chemical
0 {Midland, Mich.)
Other non-ionic surfactants should also be considered within the scope of this invention. These include condensates of alkanolamines with fatty acids, such as cocamide DEA,
5 polyol-fatty acid esters, such as the Span series available from Uniqema {Wlimington, Del.), ethoxylated polyol-fatty acid esters, such as the Tween series available from Uniqema (Wilmington, Del.), Alkylpolyglucosides, such as the APG line available from Cognis (Gulph Mills, Pa,) and n-
0 alkylpyrrolidones, such as the Surfadone series of products marketed by ISP (Wayne, N.J). Furthermore, non-ionic surfactants not specifically mentioned above, but within the definition, may also be used.
5 Water Soluble Cationic Polymer
A water soluble cationic polymer is here defined to include polymers which, because of their molecular weight or monomer composition, are soluble or dispersible to at least the

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extent of 0.01% by weight in distilled water at 25 C. Water
soluble cationic polymers include polymers in which one or more of the constituent monomers are selected from the list of copolymerisable cationic or amphoteric monomers- These
5 monomer units contain a positive charge over at least a
portion of the pH range 6-11. A partial listing of monomers can be found in the "International Cosmetic Ingredient Dictionary," 5th Edition, edited by J.A. Wenninger and G.N. McEwen, The Cosmetic, Toiletry, and Fragrance Association,
0 Washington DC, 1993, incorporated herein by reference. Another source of such monomers can be found in "Encyclopedia of Polymers and Thickeners for Cosmetics", by R.Y. Lochhead and W.R. Fron, Cosmetics & Toiletries, vol. 108, May 1993, pp 95-135.
5
The one or more cationic polymers are present in the softening in the wash composition at a level of from 0.01 to 10%, preferably from 0.025 to 7.5%, more preferably from 0.03 to 5%, for example from 0.05 to 4.5% and especially
0 0.09 to 2% by weight of total composition.
The cationic polymers of this invention are effective at surprisingly low levels. As such, the ratio of cationic polymer to total surfactant in the composition should 5 preferably be no greater than about 1:5, and more preferably less than about 1:10. The ratio of cationic polymer to anionic surfactant in the composition, on a mass basis, should be less than about 1:4, and ideally less than about 1:10, as well.

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The preferred compositions of this invention contain low levels, if any at all, of builder. Generally, these will comprise less than 10%, preferably less than 7% and most preferably less than 5% by weight of total phosphate and
5 zeolite. Furthermore, it is desirable to minimise the amount of certain types of anionic polymers added to the system, as it is believed, without wishing to be bound by theory, that these molecules can complex with the cationic polymers and have a detrimental effect on softening. The
0 preferred compositions of this disclosure comprise less than 2%, more preferably less than 1% and most preferably less than 0.5% anionic polymer. "Anionic polymer" is defined as a molecule with a molecular weight in excess of about 10,000 Daltons comprised of monomer units where at least one of the
5 monomer units making up the polymer contains a negative
charge over a portion of the wash pH range of pH 6 to pH 11, those monomer units not containing anionic charges being nonionic in nature.
0 Specifically, monomers useful in this invention may be represented structurally as etiologically unsaturated compounds as in formula I.
H R12
C =C I
i i
R13 Rl4
12 wherein R is hydrogen, hydroxyl, methoxy, or a Ci to C30
5 straight or branched alkyl radical; R is hydrogen, or a
Ci-30 straight or branched alkyl, a C1-30 straight or
branched alkyl substituted aryl, aryl substituted C1-30

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straight or branched alkyl radical, or a polyoxyalkene
condensate of an aliphatic radical; and R is a
heteroatomic alkyl or aromatic radical containing either one or more quaternised nitrogen atoms or one or more amine 5 groups which possess a positive charge over a portion of the pH interval pH 6 to 11. Such amine groups can be further delineated as having a pKa of about 6 or greater.
Examples of cationic monomers of formula I include, but are
10 not limited to, co-poly 2-vinyl pyridine and its co-poly 2-vinyl N-alkyl quaternary pyridinium salt derivatives; co-poly 4-vinyl pyridine and its co-poly 4-vinyl N-alkyl quaternary pyridinium salt derivatives; co-poly 4-vinylbenzyltrialkylammonium salts such as co-poly 4-
15 vinylbenzyltrimethylammonium salt; co-poly 2-vinyl
piperidine and co-poly 2-vinyl piperidinium salt; co-poly 4-vinylpiperidine and co-poly 4-vinyl piperidinium salt; co-poly 3-alkyl 1-vinyl imidazolium salts such as co-poly 3-methyl 1-vinyl imidazolium salt; acrylamido and
20 methacrylamido derivatives such as co-poly dimethyl aminopropylmethacrylamide, co-poly acrylamidopropyl trimethylammonium salt and co-poly methacrylamidopropyl trimethylammonium salt; acrylate and methacrylate derivatives such as co-poly dimethyl aminoethyl
25 (meth)acrylate, co-poly ethanaminium N,N,N trimethyl 2-[(l-oxo-2 propenyl) oxy] -salt , co-poly ethanaminium N,N,N trimethyl 2-[{2 methyl-l-oxo-2 propenyl) oxy] - salt , and co-poly ethanaminium N,N,N ethyl dimethyl 2-[(2 methyl-l-oxo-2 propenyl) oxy] - salt.
30

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10
15

- 27 -
Also included among the cationic monomers suitable for this invention are co-poly vinyl amine and co-polyvinylammonium salt; co-poly diallylamine, co-poly methyldiallylamine, and co-poly diallydimethylammonium salt; and the ionene class of internal cationic monomers. This class includes co-poly ethylene imine, co-poly ethoxylated ethylene imine and co-poly quaternised ethoxylated ethylene imine; co-poly [(dimethylimino) trimethylene (dimethylimino) hexamethylene disalt] , co-poly [(diethylimino) trimethylene (dimethylimino) trimethylene disalt]; co-poly [(dimethylimino) 2-hydroxypropyl salt] ; co-polyquarternium-2, co-polyquarternium-17, and co-polyquarternium 18, as defined in the "International Cosmetic Ingredient Dictionary" edited by Wenninger and McEwen.
Additionally, useful polymers are the cationic co-poly amido-amine having the chemical structure of formula II.

.NH-C2H4-N- Q, H4 NH- CO(CH2)4-CO...
P*2 CHOH
L '°i* TT
GH2-N- CH2~CHOH-CH2^ rH. rw. 11
CH3
I "
2 CI

20

...CO(CH2)4CO—NH-C9H4 -N-C2H4-NH ...
and the quaternised polyimidazoline having the chemical structure of formula III

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III 2 CH3OSO3 ]
n
wherein the molecular weight of structures II and III can vary between about 10,000 and 10,000,000 Daltons and each is 5 terminated with an appropriate terminating group such as, for example, a methyl group.
An additional, and highly preferred class of cationic monomers suitable for this invention are those arising from
10 natural sources and include, but are not limited to,
cocodimethylammonium hydroxypropyl oxyethyl cellulose, lauryldimethylammonium hydroxypropyl oxyethyl cellulose, stearyldimethylammonium hydroxypropyl oxyethyl cellulose, and stearyldimethylammonium hydroxyethyl cellulose; guar 2-
15 hydroxy-3-(trimethylammonium) propyl ether salt; cellulose 2-hydroxyethyl 2-hydroxy 3-(trimethyl ammonio) propyl ether salt.
It is likewise envisioned that monomers containing cationic 20 sulphonium salts such as co-poly 1-[3-methyl-4-(vinyl-
benzyloxy)phenyl] tetrahydrothiophenium chloride would also be applicable to the present invention.
The counterion of the comprising cationic co-monomer is 25 freely chosen from the halides: chloride, bromide, and iodide; or from hydroxide, phosphate, sulphate,

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hydrosulphate, ethyl sulphate, methyl sulphate, formate, and acetate.
Another class of cationic polymer useful for the present 5 invention are the cationic silicones. These materials are characterised by repeating dialkylsiloxane interspersed or end terminated, or both, with cationic substituted siloxane units. Commercially available materials of this class are the Abil Quat polymers from Degussa Goldschmidt (Virginia).
10
The weight fraction of the cationic polymer which is composed of the above-described cationic monomer units can range from 1 to 100%, preferably from 10 to 100%, and most preferably from 15 to 80% of the entire polymer. The
15 remaining monomer units comprising the cationic polymer are chosen from the class of anionic monomers and the class of non-ionic monomers or solely from the class of non-ionic monomers. In the former case, the polymer is an amphoteric polymer while in the latter case it can be a cationic
20 polymer, provided that no amphoteric co-monomers are
present. Amphoteric polymers should also be considered within the scope of this disclosure, provided that the polymer unit possesses a net positive charge at one or more points over the wash pH range of pH 6 to 11. The anionic
25 monomers comprise a class of monounsaturated compounds which possess a negative charge over the portion of the pH range from pH 6 to 11 in which the cationic monomers possess a positive charge. The non-ionic monomers comprise a class of monounsaturated compounds which are uncharged over the pH
30 range from pH 6 to 11 in which the cationic monomers possess a positive charge. It is expected that the wash pH at which

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this invention would be employed would either naturally fall within the above mentioned portion of the pH range 6-11 or, optionally, would be buffered in that range. A preferred class of both the anionic and the non-ionic monomers are the 5 vinyl (ethylenically unsaturated) substituted compounds corresponding to formula IV.
? r r?
R16 R17
0 wherein R , R , and R are independently hydrogen, a Ci to C3 alkyl, a carboxylate group or a carboxylate group
substituted with a Ci to C30 linear or branched heteroatomic
alkyl or aromatic radical, a heteroatomic radical or a poly oxyalkene condensate of an aliphatic radical. 5
The class of anionic monomers are represented by the compound described by formula IV in which at least one of
the R , R , or R comprises a carboxylate, substituted
carboxylate, phosphonate, substituted phosphonate, sulphate, 0 substituted sulphate, sulphonate, or substituted sulphonate group. Preferred monomers in this class include but are not limited to a-ethacrylic acid, a-cyano acrylic acid, (B,|3-dimethacrylic acid, methylenemalonic acid, vinylacetic acid, allylacetic acid, acrylic acid, ethylidineacetic acid, 5 propylidineacetic acid, crotonic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid, sorbic acid, angelic acid, cinnamic acid, p-styryl acrylic acid (1-

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carboxy-4-phenyl butadiene-1,3), citraconic acid, glutaconic acid, aconitic acid, a-phenylacrylic acid, p-acryloxy propionic acid, citraconic acid, vinyl benzoic acid, N-vinyl succinamidic acid, and mesaconic acid. Also included in the
5 list of preferred monomers are co-poly styrene sulphonic acid, 2-methacryloyloxymethane-l-sulphonic acid, 3-methacryloyloxypropane-1-sulphonic acid, 3-(vinyloxy)propane-1-sulphonic acid, ethylenesulphonic acid, vinyl sulphuric acid, 4-vinylphenyl sulphuric acid, ethylene
0 phosphonic acid and vinyl phosphoric acid. Most preferred monomers include acrylic acid, methacrylic acid and maleic acid. The polymers useful in this invention may contain the above monomers and the alkali metal, alkaline earth metal, and ammonium salts thereof.
5
The class of non-ionic monomers are represented by the compounds of formula IV in which none of the R15, R16, or R17 contain the above mentioned negative charge containing radicals. Preferred monomers in this class include, but are
0 not limited to, vinyl alcohol; vinyl acetate; vinyl methyl ether; vinyl ethyl ether; acrylamide, methacrylamide and other modified acrylamides; vinyl propionate; alkyl acrylates (esters of acrylic or methacrylic acid); and hydroxyalkyl acrylate esters. A second class of non-ionic
5 monomers include co-poly ethylene oxide, co-poly propylene oxide, and co-poly oxymethylene. A third, and highly preferred, class of non-ionic monomers includes naturally derived materials such as hydroxyethylcellulose and guar gum.

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It is highly preferred, and often necessary in the case of certain compositions, to formulate the products of this invention with the proper ratio of cationic polymer to anionic surfactant. Relative to the surface area of the 5 textiles generally laundered, the preferred ratios are
unexpectedly low. If the ratio is too high, this can result in reduced softening, poor packing at the interface, unacceptable dissolution times and, in the case of liquid products, an excessively high viscosity which can render the
10 product non-pourable, and thus unacceptable for consumer use. The use of lower ratios of cationic polymer to surfactant also reduces the overall level of polymer necessary for the formulation, which is also preferable for cost and environmental reasons, and gives the formulator
15 greater flexibility in making a stable product. The
preferred ratio of cationic polymer: total surfactant will be less than about 1:4, whereas the preferred ratio of cationic polymer: anionic surfactant will be less than about 1:5, and the preferred ratio of cationic polymer: non-ionic
20 surfactant will be less than about 1:5. More preferably, the ratios of cationic polymer: total surfactant, cationic polymer: anionic surfactant and cationic polymer: total surfactant will be less than about 1:10. In terms of absolute fraction, this often means that the concentration
25 of cationic polymer will generally be less than about 5%,
preferably less than about 2% and most preferably less than about 1% of the total product mass.
Without wishing to be bound by theory, it is believed that 30 the species responsible for providing a conditioning benefit in these formulations is a polymer/surfactant complex,

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especially a cationic polymer/soap complex. However said complex, especially when deposited on fabric may lead to an increased attraction of soil to the fabric, and hence an increase redeposition of soil, a perceivable cleaning 5 negative.
Many of the aforementioned cationic polymers can be synthesised in, and are commercially available in, a number of different molecular weights. In order to achieve optimal
10 cleaning and softening performance from the product, it is desirable that the water-soluble cationic or amphoteric polymer used in this invention be of an appropriate molecular weight. Without wishing to be bound by theory, it is believed that polymers that are too high in mass can
15 entrap soils and prevent them from being removed. The use of cationic polymers with an average molecular weight of less than about 850,000 Daltons, and especially those with an average molecular weight of less than 500,000 Daltons can help to minimise this effect without significantly reducing
20 the softening performance of properly formulated products.
On the other hand, polymers with a molecular weight of about 10,000 Daltons or less are believed to be too small to give an effective softening benefit.
25 In certain cases, especially when these polymers are to be used in a powdered detergent/softener or fabric softener formulation, lower molecular weight polymers can even improve the softening performance of the product. This is believed to be due to dissolution kinetics; materials of too
30 high a molecular weight can fail to dissolve fully during the wash cycle, rendering them unavailable for softening

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fabrics. The preferred powdered compositions of this invention include materials that have a dissolution parameter of more than about 55.
5 Cleaning performance can further be improved by selecting a polymer with an appropriate level of cationic moiety. Again, it is believed that polymers with excessive levels of cationic charge can contribute to soil deposition, hindering the cleaning performance of either the fully formulated 2-
10 in-1 detergent/softener or any laundry detergent that is
used in conjunction with the compositions of this invention if they are to be standalone fabric softeners. Particularly appropriate materials are those that comprise less than about 2 % by weight, preferably less than about 1.8 % by
15 weight of cationic nitrogen or phosphorus.
Optional Ingredients
In addition to the above-mentioned essential elements, the 20 formulation may include one or more optional ingredients. While it is not necessary for these elements to be present in order to practice this invention, the use of such materials is often very helpful in rendering the formulation acceptable for consumer use. 25
Examples of optional components include, but are not limited to: additional nonionic and anionic surfactants, amphoteric and zwitterionic surfactants, cationic surfactants, hydrotropes, fluorescent whitening agents, photobleaches, 30 fibre lubricants, reducing agents, enzymes, enzyme
stabilising agents, powder finishing agents, defearners,

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builders, bleaches, bleach catalysts, soil release agents, antiredeposition agents, dye transfer inhibitors, buffers, colorants, fragrances, pro-fragrances, rheology modifiers, anti-ashing polymers, preservatives, insect repellents, soil 5 repellents, water-resistance agents, suspending agents,
aesthetic agents, structuring agents, sanitisers, solvents, fabric finishing agents, dye fixatives, wrinkle-reducing agents, fabric conditioning agents and deodorizers.
10 Preserva tives
Optionally, a soluble preservative may be added to this invention. Contamination of the product by microorganisms, which can occur through both raw materials and consumer use,
15 can have a number of undesirable effects. These include phase separation, the formation of bacterial and fungal colonies, the emission of objectionable odours and the like. The use of a preservative is especially preferred when the composition of this invention is a liquid, as these products
20 tend to be especially susceptible to microbial growth.
The use of a broad-spectrum preservative, which controls the growth of bacteria and fungi is preferred. Limited-spectrum preservatives, which are only effective on a single group of
25 microorganisms may also be used, either in combination with a broad-spectrum material or in a "package" of limited-spectrum preservatives with additive activities. Depending on the circumstances of manufacturing and consumer use, it may also be desirable to use more than one broad-spectrum
30 preservative to minimise the effects of any potential contamination.

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The use of both biocidal materials, i.e. substances that kill or destroy bacteria and fungi, and biostatic preservatives, i.e. substances that regulate or retard the growth of microorganisms, may be indicated for this 5 invention.
In order to minimise environmental waste and allow for the maximum window of formulation stability, it is preferred that preservatives that are effective at low levels be used.
10 Typically, they will be used only at an effective amount. For the purposes of this disclosure, the term "effective amount" means a level sufficient to control microbial growth in the product for a specified period of time, i.e., two weeks, such that the stability and physical properties of it
15 are not negatively affected. For most preservatives, an effective amount will be between about 0.00001% and about 0.5% of the total formula, based on weight. Obviously, however, the effective level will vary based on the material used, and one skilled in the art should be able to select an
20 appropriate preservative and use level.
Preferred preservatives for the compositions of this invention include organic sulphur compounds, halogenated materials, cyclic organic nitrogen compounds, low molecular 25 weight aldehydes, quaternary ammonium materials,
dehydroacetic acid, phenyl and phenoxy compounds and mixtures thereof.
Examples of preferred preservatives for use in the 30 compositions of the present invention include: a mixture of about 77% 5-chloro-2-methyl-4-isothiazolin-3-one and about

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23% 2-methyl-4-isothiazolin-3-one, which is sold commercially as a 1.5% aqueous solution by Rohm & Haas (Philadelphia, Pa.) under the trade name Kathon; 1,2-benzisothiazolin-3-one, which is sold commercially by Avecia 5 (Wilmington, Del.) as, for example, a 20% solution in
dipropylene glycol sold under the trade name Proxel GXL; and a 95:5 mixture of 1,3 bis (hydroxymethyl)-5,5-dimethyl-2,4 imidazolidinedione and 3-butyl-2-iodopropynyl carbamate, which can be obtained, for example, as Glydant Plus from 10 Lonza (Fair Lawn, N.J.).
The preservatives described above are generally only used at an effective amount to give product stability. It is conceivable, however, that they could also be used at higher 15 levels in the compositions on this invention to provide a biostatic or antibacterial effect on the treated articles.
Fluorescent Whitening Agents
20 Many fabrics, and cottons in particular, tend to lose their whiteness and adopt a yellowish tone after repeated washing. As such, it is customary and preferred to add a small amount of fluorescent whitening agent, which absorbs light in the ultraviolet region of the spectrum and re-emits it in the
25 visible blue range, to the compositions of this invention, especially if they are combination detergent/fabric conditioner preparations.
Suitable fluorescent whitening agents include derivatives of 30 diaminostilbenedisulphonic acid and their alkali metal salts. Particularly, the salts of 4,4'-bis(2-anilino4-

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morpholino-1,3,5-triazinyl-6-amino)stilbene-2, 2'-disulphonic acid, and related compounds where the morpholino group is replaced by another nitrogen-comprising moiety, are preferred. Also preferred are brighteners of the 4,4'-5 bis (2-sulphostyryl) biphenyl type, which may optionally be blended with other fluorescent whitening agents at the option of the formulator. Typical fluorescent whitening agent levels in the preparations of this invention range between 0.001% and 1%, although a level between 0.1% and 10 0.3%, by mass, is normally used. Commercial supplies of
acceptable fluorescent whitening agents can be sourced from, for example, Ciba Specialty Chemicals (High Point, N.C.) and Bayer (Pittsburgh, Pa.).
15 Builders
Builders are often added to fabric cleaning compositions to complex and remove alkaline earth metal ions, which can interfere with the cleaning performance of a detergent by 20 combining with anionic surfactants and removing them from the wash liquor. The preferred compositions of this invention, especially when used as a Combination detergent/softener, contain builders.
25 Soluble builders, such as alkali metal carbonates and alkali metal citrates, are particularly preferred, especially for the liquid embodiment of this invention. Other builders, as further detailed below, may also be used, however. Often a mixture of builders, chosen from those described below and
30 others known to those skilled in the art will be used.

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Alkali and Alkaline Earth Metal Carbonates
Alkali and alkaline earth metal carbonates, such as those detailed in German patent application 2,321,001, published 5 Nov. 15, 1973, are suitable for use as builders in the
compositions of this invention. They may be supplied and used either in anhydrous form, or including bound water. Particularly useful is sodium carbonate, or soda ash, which both is readily available on the commercial market and has 10 an excellent environmental profile.
The sodium carbonate used in this invention may either be natural or synthetic, and, depending on the needs of the formula, may be used in either dense or light form. Natural
15 soda ash is generally mined as trona and further refined to a degree specified by the needs of the product it is used in. Synthetic ash, on the other hand, is usually produced via the Solvay process or as a coproduct of other manufacturing operations, such as the synthesis of
20 caprolactam. It is sometimes further useful to include a small amount of calcium carbonate in the builder formulation, to seed crystal formation and increase building efficacy.
25 Organic Builders
Organic detergent builders can also be used as nonphosphate builders in the present invention. Examples of organic builders include alkali metal citrates, succinates, 30 malonates, fatty acid sulphonates, fatty acid carboxylates, nitrilotriacetates, oxydisuccinates, alkyl and alkenyl

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disuccinates, oxydiacetates, carboxymethyloxy succinates, ethylenediamine tetraacetates, tartrate monosuccinates, tartrate disuccinates, tartrate monoacetates, tartrate diacetates, oxidized starches, oxidized heteropolymeric
5 polysaccharides, polyhydroxysulphonates, polycarboxylates such as polyacrylates, polymaleates, polyacetates, polyhydroxyacrylates, polyacrylate/polymaleate and polyacrylate/polymethacrylate copolymers, acrylate/maleate/vinyl alcohol terpolymers,
0 aminopolycarboxylates and polyacetal carboxylates, and
polyaspartates and mixtures thereof. Such carboxylates are described in U.S. Patent Nos. 4,144,226, 4,146,495 and 4,686,062. Alkali metal citrates, nitrilotriacetates, oxydisuccinates, acrylate/maleate copolymers and
5 acrylate/maleate/vinyl alcohol terpolymers are especially preferred nonphosphate builders.
Phosphates
0 The compositions of the present invention which utilise a water-soluble phosphate builder typically contain this builder at a level of from 1 to 90% by weight of the composition. Specific examples of water-soluble phosphate builders are the alkali metal tripolyphosphates, sodium,
5 potassium and ammonium pyrophosphate, sodium and potassium orthophosphate, sodium polymeta/phosphate in which the degree of polymerisation ranges from about 6 to 21, and salts of phytic acid. Sodium or potassium tripolyphosphate is most preferred.

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Phosphates are, however, often difficult to formulate, especially into liquid products, and have been identified as potential agents that may contribute to the eutrophication of lakes and other waterways. As such, the preferred 5 compositions of this invention comprise phosphates at a
level of less than about 10% by weight, more preferably less than about 5% by weight. The most preferred compositions of this invention are formulated to be substantially free of phosphate builders. 10
Zeolites
Zeolites may also be used as builders in the present invention. A number of zeolites suitable for incorporation
15 into the products of this disclosure are available to the formulator, including the common zeolite 4A. In addition, zeolites of the MAP variety, such as those taught in European Patent Application EP-B-384,070, which are sold commercially by, for example, Ineos Silicas (UK), as Doucil
20 A24, are also acceptable for incorporation. MAP is defined as an alkali metal aluminosilicate of zeolite P type having a silicon to aluminium ratio not exceeding 1.33, preferably within the range of from 0.90 to 1.33, more preferably within the range of from 0.90 to 1.20.
25
Especially preferred is zeolite MAP having a silicon to aluminium ratio not exceeding 1.07, more preferably about 1.00. The particle size of the zeolite is not critical. Zeolite A or zeolite MAP of any suitable particle size may
30 be used. In any event, as zeolites are insoluble matter, it is advantageous to minimise their level in the compositions

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of this invention. As such, the preferred formulations contain less than about 10% of zeolite builder, while especially preferred compositions compress less than about 5% zeolite. 5
Enzyme Stabilisers
When enzymes and especially proteases are used in liquid detergent formulations, it is often necessary to include a
10 suitable quantity of enzyme stabiliser to temporarily
deactivate it until it is used in the wash. Examples of suitable enzyme stabilisers are well-known to those skilled in the art, and include, for example, borates and polyols such as propylene glycol. Borates are especially suitable
15 for use as enzyme stabilisers because in addition to this benefit, they can further buffer the pH of the detergent product over a wide range, thus providing excellent flexibility.
20 If a borate-based enzyme stabilisation system is chosen,
along with one or more cationic polymers that are at least partially comprised of carbohydrate moieties, stability problems can result if suitable co-stabilisers are not used. It is believed that this is the result of borates' natural
25 affinity for hydroxyl groups, which can create an insoluble borate-polymer complex that precipitates from solution either over time or at cold temperatures. Incorporating into the formulation a co-stabiliser, which is normally a diol or polyol, sugar or other molecule with a large number
30 of hydroxyl groups, can ordinarily prevent this. Especially preferred for use as a co-stabiliser is sorbitol, used at a

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level that is at least about 0.8 times the level of borate in the system, more preferably 1.0 times the level of borate in the system and most preferably more than 1.43 times the level of borate in the system, is sorbitol, which is 5 effective, inexpensive, biodegradable and readily available on the market. Similar materials including sugars such as glucose and sucrose, and other polyols such as propylene glycol, glycerol, mannitol, maltitol and xylitol, should also be considered within the scope of this invention. 10
Fibre Lubricants
In order to enhance the conditioning, softening, wrinkle-reduction and protective effects of the compositions of this
15 invention, it is often desirable to include one or more
fibre lubricants in the formulation. Such ingredients are well known to those skilled in the art, and are intended to reduce the coefficient of friction between the fibres and yarns in articles being treated, both during and after the
20 wash process. This effect can in turn improve the
consumer's perception of softness, minimise the formation of wrinkles and prevent damage to textiles during the wash. For the purposes of this disclosure, "fibre lubricants" shall be considered non-cationic materials intended to
25 lubricate fibres for the purpose of reducing the friction between fibres or yarns in an article comprising textiles which provide one or more wrinkle-reduction, fabric conditioning or protective benefit.
30 Examples of suitable fibre lubricants include oily sugar derivatives, functionalised plant and animal-derived oils,

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silicones, mineral oils, natural and synthetic waxes and the like. Such ingredients often have low HLB values, less than about 10, although exceeding this level is not outside of the scope of this invention. 5
Oily sugar derivatives suitable for use in this invention are taught in WO 98/16538, which is incorporated herein by reference. These are especially preferred as fibre lubricants, due to their ready availability and favorable
10 environmental profile. When used in the compositions of this invention, such materials are typically present at a level between about 1% and about 10% of the finished composition. Another class of acceptable ingredients includes hydrophilically-modified plant and animal oils and
15 synthetic triglycerides. Suitable and preferred
hydrophilically modified plant, animal and synthetic triglyceride oils and waxes have been identified as effective fibre lubricants. Such suitable plant derived triglyceride materials include hydrophilically modified
20 triglyceride oils, e.g. sulphated, sulphonated,
carboxylated, alkoxylated, esterified, saccharide modified, and amide derivatised oils, tall oils and derivatives thereof, and the like. Suitable animal derived triglyceride materials include hydrophilically modified fish oil, tallow,
25 lard, and lanolin wax, and the like. An especially
preferred functionalised oil is sulphated castor oil, which is sold commercially as, for example, freedom SCO-75, available from Noveon (Cleveland, Ohio).
30 Various levels of derivatisation may b^ used provided that the derivatisation level is sufficient for the oil or wax

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derivatives to become soluble or dispersible in the solvent it is used in so as to exert a fibre lubrication effect during laundering of fabrics with a detergent containing the oil or wax derivative.
5
If this invention includes a functionalised oil of synthetic origin, preferably this oil is a silicone oil. More preferably, it is either a silicone poly ether or amino-functional silicone. If this invention incorporates a
0 silicone polyether, it is preferably of one of the two general structures shown below:
Structure A
Me3SiO—(MesSiO^-CMeSiOJy-OSiMeB
PE
Structure B
(MeSiV2
—[(OSMe2)x/yOPE]y
Where PE represents: CH2—CH2—CH2—O—(EO)m—(PO)n—Z
where Me represents methyl; EO represents ethylene oxide; PO 5 represents 1,2 propylene oxide; Z represents either a
hydrogen or a lower alkyl radical; x, y, m, n are constants and can be varied to alter the properties of the functionalised silicone.
0 A molecule of either structure can be used for the purposes of this invention. Preferably, this molecule contains more than 30% silicone, more than 20% ethylene oxide and less than 30% propylene oxide by weight, and has a molecular

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weight of more than 5,000. An example of a suitable, commercially available such material is L-7622, available from Crompton Corporation, (Greenwich, Ct.)
5 Amino-functional silicones come in a wide variety of
structures, which are well-known to those skilled in the art. These are also useful in the context of this invention, although over time many of these materials can oxidize on fabrics, leading to yellowing. As this is not a
10 desirable property of a fabric care composition, if an amino-functional silicone is used, preferably it is a hindered amine light stabilised product, which exhibits a greatly reduced tendency to show this behavior. A commercially available example of such a silicone is
15 Hydrosoft, available from Rhodia - US (Cranbury, N.J.)
When the use of a fibre lubricant is elected, it will generally be present as between 0.1% and 15% of the total composition weight. 20
Bleach Catalyst
An effective amount of a bleach catalyst can also be present in the invention. A number of organic catalysts are 25 available such as the sulphonimines as described in U.S. Patents 5,041,232; 5,047,163 and 5,463,115.
Transition metal bleach catalysts are &lso useful, especially those based on manganese, iron, cobalt, titanium, 30 molybdenum, nickel, chromium, copper, Ruthenium, tungsten and mixtures thereof. These include simple water-soluble

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salts such as those of iron, manganese and cobalt as well as catalysts containing complex ligands.
Suitable examples of manganese catalysts containing organic 5 ligands are described in U.S. Pat. 4,728,455, U.S. Pat. 5,114,606, U.S. Pat 5,153,161, U.S. Pat. 5,194,416, U.S. Pat. 5,227,084, U.S. Pat. 5,244,594, U.S. Pat. 5,246,612, U.S. Pat. 5,246,621, U.S. Pat. 5,256,779, U.S. Pat. 5,274,147, U.S. Pat. 5,280,117 and European Pat. App. Pub. 10 Nos. 544,440, 544,490, 549,271 and 549,272. Preferred
examples of these catalysts include Mn 2 (u-O)2(1/4,7-trimethyl-1,4,7-triazacyclononane)2(PF5) 2, Mn 2(u-O)1(u-OAc)2(1,4,7- trimethyl-1,4,7-triazacyclononane)2(CI04)2, Mn 4(u-O)6(1,4,7-triazacyclononane)4 (0104)4, Mn Mn 4 (u-15 0)1(u-OAc)2(1, 4, 7-trimethyl-1, 4, 7-triazacyclononane)2(CIO4)3,
IV
Mn (1, 4,7-trimethyl-l,4,7-triazacyclononane)- (OCH3)3(PFg) ,
and mixtures thereof. Other metal-based bleach catalysts include those disclosed in U.S. Pat. 4,430f243 and U.S. Pat. 5,114,611. Other examples of complexes of transition metals
20 include Mn gluconate, Mn(CF3S03)2, and binuclear Mn complexed
with tetra-N-dentate and bi-N-dentate ligands, including
[bipy2Mn (u-O)2MnIVbipy2]-(CIO4)3.
Iron and manganese salts of aminocarboxylic acids in general 25 are useful herein including iron and manganese
aminocarboxylate salts disclosed for bleaching in the photographic colour processing arts. A particularly useful transition metal salt is derived from

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ethylenediaminedisuccinate and any complex of this ligand with iron or manganese.
Another type of bleach catalyst, as disclosed in U.S. Pat. 5 5,114,606, is a water soluble complex of manganese (II),
(III), and/or (IV) with a ligand which is a non-carboxylate polyhydroxy compound having at least three consecutive C-OH groups. Preferred ligands include sorbitol, iditol, dulsitol, mannitol, xylitol, arabitol, adonitol, meso-10 erythritol, meso-inositol, lactose and mixtures thereof. Especially preferred is sorbitol.
Other bleach catalysts are described, for example, in
European Pat. App. Pub. Nos. 408,131 (cobalt complexes), 15 384,503 and 306,089 (metallo-porphyrins), U.S. Pat.
4,728, 4 55 (manganese/multidenate ligand), U.S. Pat.
4,711,748 (absorbed manganese on aluminosilicate), U.S. Pat.
4,601,845 (aluminosilicate support with manganese, zinc or
magnesium salt), U.S. Pat. 4,626,373 (manganese/ligand), 20 U.S. Pat. 4,119,557 (ferric complex), U.S. Pat. 4,430.243 (Chelants with manganese cations and non-catalytic metal
cations), and U.S. Pat. 4,728,455 (manganese gluconates).
Useful catalysts based on cobalt are described in WO 25 96/23859, WO 96/23860 and WO 96/23861 and U.S. Pat.
5,559,261. WO 96/23860 describe cobalt catalysts of the
type [ConLmXp] Yz, where L is an organic ligand molecule
containing more than one heteroatom selected from N, P, O and S; X is a co-ordinating species; n is preferably 1 or 2; 30 m is preferably 1 to 5; p is preferably 0 to 4 and Y is a counterion. One example of such a catalyst is N,N'-

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Bis(salicylidene)ethylenediaminecobalt (ii). Other cobalt catalysts described in these applications are based on
Co (III) complexes with ammonia and mono-, bi-, tri- and
2 tetradentate ligands such as [Co (NH3) 5OAC] + with Cl , OAc ,
5 PFe , SO4 , and BF4 anions.
Certain transition-metal containing bleach catalysts can be prepared in the situ by the reaction of a transition-metal salt with a suitable chelating agent, for example, a mixture 10 of manganese sulphate and ethylenediaminedisuccinate.
Highly coiaared1 transition metai-containing bleach catalysts may be co-processed with zeolites to reduce the colour impact.
15 When present, the bleach catalyst is typically incorporated at a level of about 0.0001 to about 10% by wt., preferably about 0.001 to about 5% by weight.
Hydrotropes
20
In many liquid and powdered detergent compositions, it is customary to add a hydrotrope to modify product viscosity and prevent phase separation in liquid^, and ease dissolution in powders.
25
Two types of hydrotropes are typically used in detergent formulations and are applicable to this invention. The first of these are short-chain functioiialised amphiphiles. Examples of short-chain amphiphiles include the alkali metal
30 salts of xylenesulphonic acid, cumenesulphonic acid and

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octyl sulphonic acid, and the like. In addition, organic solvents and monohydric and polyhydric alcohols with a molecular weight of less than about 500, such as, for example, ethanol, isoporopanol, acetone, propylene glycol 5 and glycerol, may also be used as hydrotropes.
Soil Release Agents
In order to prevent the resoiling of fabrics during and
10 after the wash, one or more soil release agents may also be added to the products of this invention. Many different types of soil release agents are known to those skilled in the art, depending on the formulation in use and the desired benefit. The soil release agents useful in the context of
15 this invention are typically either antiredeposition aids or stain-repelling finishes. Examples of anti-redeposition agents include soil release polymers, such as those described in WO 99/03963, which is incorporated herein by reference.
20
In addition, the cationic polymers of this invention are particularly advantageous when used in conjunction with a stain-repelling finish. Such materials are typically either fluoropolymers or fluorosurfactants, although the use of
25 other amphiphilic materials with extremely hydrophobic lyophobes, such as silicone surfactants, is also conceivable. Non-limiting examples of suitable anionic fluorosurfactants are taught in U.S. Patent No. 6,040,053, which is incorporated herein by reference. Without wishing
30 to be bound by theory, it is believed that the cationic
polymers of this invention coordinate to the fabric surface

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and act as a substrate and deposition aid for the stain-repelling finish. When an antiredeposition aid or stain-repelling finish is used, it is typically applied as 0.05% to 10% of the finished composition. 5
The following examples will more fully illustrate the embodiments of this invention. All parts, percentages and proportions referred to herein and in the appended claims are by weight unless otherwise illustrated. Physical test 10 methods are described below.

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EXAMPLES

Material/ manufacturer Control Formulation A Formulation 1
Linear alkyl benzene sulphonate 9 9 9
Alcohol ethoxylate -7EO 4.45 4.45 4.45
F-77 (BASF) 0 0 1
Prifac 5908 from Uniqema 4.5 4.5 4.5
LR-400 from Dow Amerchol 0 0.2 0.2
NaOH 1.28 1.28 1.28
MEA 1.3 1.3 1.3
NaCl 0.25 0.25 0.25
Propylene glycol 2 2 2
Dequest 2066 1 1 1
Tinopal CBS-X 0.02 0.02 0.02
Acusol 0.016 0.016 0.016
PVP-K15 0.1 0.1 0
Dye 0.00098 0.00098 0.00098
Perfume 0.38 0.38 0.38
Water to 100 to 100 to 100
Table 1 - Details of the three formulations
5 A control formulation (formulated without cationic polymer) was prepared as well as comparative formulation A (formulated without the polymeric non-ionic surfactant) and formulation 1 according to the present invention. The values in the table are weight percentages and the 10 formulations were in liquid form.
Explanation of the Ingredients
All ingredients are quoted as percentages by weight of total 15 formulation.

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F-77 is an ethylene oxide/propylene oxide block copolymer having an average molecular weight of 6600. It is available under the Pluronic (Trademark) name from BASF.
5 The cationic polymer used in the formulations is a cationic cellulosic polymer LR-400 from Dow Amerchol.
Prifac 5908 is palmkernel fatty acid having an iodine value lower than 1.0. 10
The non-soap detersive surfactants used in the above formulation are linear alkyl benzene sulphonate and alcohol ethoxylate - 7EO.
15 Optional ingredients incorporated were dyes, perfume, opacifier (Acusol), optical brightener (Tinopal CBS-X), sequestrant (Dequest 2066), hydrotrope (propylene glycol), salt (NaCl) and neutraliser (MEA and NaOH).
20 An anti-redeposition polymer (PVP-K15) was included in the control formulation and for formulation A. As the anti-redeposition data shows, formulation 1 according to the invention (and which does not include the anti-redeposition polymer) shows a marked improvement in reducing redeposition
25 of soil in comparison to formulation A, which is not according to the invention.
The three formulations were tested for softening efficacy by an expert panel. The formulations were also tested for cleaning, on three different fabric types, by running an
30 anti-redeposition experiment. Two other formulations were also tested for anti-redeposition on cotton fabric. These

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differed from formulation 1 only in that polymeric non-ionic surfactants of differing molecular weights were used.
Softness Evaluation
5
The softness evaluation used a panel of 10 trained assessors to assess the softness value of machine laundered cotton fabric articles by the three formulations. The fabric articles were cotton swatches each being the same size (20
0 cm by 20cm). The softness scale used went upwards from 1, with 1 being not soft (so the higher the number the better). Each panellist assessed various items at random from the three washes and gave each laundered swatch a softness score. The score stated in table 2 is the average (mean)
5 value for softness recorded.
The laundering process used was as follows and was the same for all three formulations;-
0 Washing machine
• Computer controlled Miele (Trademark) FLA machines
• 60°C, cotton wash
• 26°FH -(French Degree of Water Hardness)
• 2.5 kg load of cotton fabric swatches of the same size
5 • Product introduced to wash via dosing ball - 120 gm per wash
• Monadic assessment, 10 assessors (expert panel).

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Table 2 records the average (mean) value for the softness of a fabric article laundered with each formulation.

Formulation Mean Score
Control 2.8
Formulation A 3.5
Formulation 1 3.8
5 Table 2 - Softness Values
The results for both comparative formulation A and formulation 1 (according to the invention) show a significant benefit in comparison to the control formulation
0 for softness. Formulation 1 according to the invention even shows a greater softening value in comparison to formulation A. As it is believed that it is a cationic polymer/soap complex that provides the softening benefit, then we can see that as softness is increased in formulation 1 in comparison
5 to formulation A, then we believe that deposition of soap is increased by adding the non-ionic block polymer surfactant according to the invention.
Anti-redeposition Data
0
Redeposition of soil was quantified by using a change in reflectance of the fabric. Such a technique is well known in the art. The reflectance was expressed by measuring the initial reflectance at 460 nm, with contribution due to UV
5 excluded, (hereafter referred to as R460*) of the swatches using a HunterLab (trademark) UltraScan (trademark) XE reflectometer. Following washing the individual swatches

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were air-dried and the final reflectance values for the swatches at R460* determined. The change in reflectance AR is determined by subtracting the initial reflectance from the final reflectance; the average change in reflectance for 5 the different fabric swatches laundered with the three different formulations is presented in table 3 below.

Formulation Cotton Polycotton Knitted polycotton
AR460* reading AR460* reading AR460*
reading

Control -2.305 -0.865 0.1
Formulation A -2.95 -1.44 -1.295
Formulation 1 -1.9525 -1.01 -0.8025
10
Table 3 - Anti-redeposition Data
From table 3, it is clear that formulation 1 has a clear benefit in terms of increased anti-redeposition in 15 comparison to formulation A (which does not include the
polymeric non-ionic surfactant), in that there has been a lower redeposition of soil onto the fabric as expressed by the AR460* value for reflectance.
20 A further anti-redeposition experiment was carried out using
the method outlined above. The formulations tested utilised
the same ingredients as per formulation 1, only this time
the molecular weight of the polymeric non-ionic surfactant
used was varied. The level of incorporation was 1% by

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weight as before. The three polymeric non-ionic surfactants were sourced from BASF under the Pluronic trademark.
F-77 is an ethylene oxide/propylene oxide block copolymer 5 having an average molecular weight of 6600. It is available under the Pluronic (Trademark) name from BASF.
L-62 is an ethylene oxide/propylene oxide block copolymer having an average molecular weight of 2450. It is available 10 under the Pluronic (Trademark) name from BASF.
F-88 is an ethylene oxide/propylene oxide block copolymer having an average molecular weight of 11400. It is available under the Pluronic (Trademark) name from BASF.
15
The tests were carried out on cotton fabric swatches. The results are expressed in table 4 and show useful benefits for soil anti-redeposition for a range of polymeric non-ionic surfactants with molecular weights from -2400 to 11500
20 Daltons.

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Formulation Average Molecular weight of polymeric non-ionic surfactant (Daltons) AR460* reading
Control - -2.305
Formulation A - -2.95
Formulation 1 Formulation 2 (L-62) 2450 -2.29
Formulation 3 (F-88) 11400 -1.22
Table 4 - Anti-redeposition data for different mol. Wt.
5 polymeric non-ionic surfactants.

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1. A softening in the wash detergent composition
comprising:-
5
(a) at least 1% by weight of a detersive surfactant other than soap, with a molecular weight below 1000 Daltons;
(b) at least 1% by weight of a C6-C30 soap;
(c) 0.005% to 5% by weight of a polymeric non-ionic
10 surfactant having a molecular weight above 2200
Daltons; and,
(d) 0.001% to 15% by weight of one or more water soluble
cationic polymers capable of forming a complex with
(b) .
15
2. The composition according to claim 1 wherein the polymeric non-ionic surfactant is a block polymer.
3. The composition according to claim 1 wherein the
20 polymeric non-ionic surfactant has a molecular weight of less than 13000 Daltons.
4. The composition according to claim 1 or claim 2 wherein
the polymeric non-ionic surfactant comprises ethylene
25 oxide and propylene oxide blocks.
5. The composition according to claim 1 comprising from
0.01 to 4%, preferably from 0.05 to 3.5%, most
preferably from 0.075 to 2.5% by weight of the
30 polymeric non-ionic surfactant.

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6. The composition according to claim 1 wherein at least one cationic polymer is selected from the group consisting of dimethyl diallyl ammonium chloride/acrylamide copolymers, dimethyl diallyl
5 ammonium chloride/acrylic acid/acrylamide terpolymers, vinylpyrrolidone/methyl vinyl imidazolium chloride copolymers, polydimethyl diallyl ammonium chloride, starch hydroxypropyl trimmonium chloride, polymethacryl amidopropyl trimethy1 ammonium chloride,
0 acrylamidopropyl trimmonium chloride/acrylamide
copolymers, guar hydroxypropyl trimonium chloride, and hydroxyethyl cellulose derivatised with trimethyl ammonium substituted epoxide.
5 7. The composition according to claim 5, wherein at least one cationic polymer is a cationic substituted siloxane or polyquaternium 10.
8. The composition according to claim 1, wherein the one
0 or more cationic polymers are present at a level of
from 0.01 to 10%, preferably from 0.025 to 7.5%, more preferably from 0.03 to 5%, for example from 0.05 to 4.5% and especially 0.09 to 2% by weight of total composition. 5
9. The composition according to claim 1, wherein the soap
is present at a level of from 1 to 25%, preferably from
1 to 15%, more preferably from 1.25 to 10%, most
preferably from 1.5 to 8% by weight.

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10. The composition according to claim 1, wherein the soap is a C8-C26, preferably C8-C24, more preferably CB-Ci8 soap.
5 11. The composition according to claim 1, wherein the
detersive surfactant other than soap is present at a level of from 1 to 90%, preferably from 1.5 to 85%, more preferably from 2 to 80% by weight of total composition.
0
12. The composition according to claim 1, wherein the
detersive surfactant other than soap is selected from
non-ionic surfactant, anionic surfactant or mixtures
thereof.
5
13. The composition according to claim 12, wherein the
anionic surfactant is an alkali or alkaline earth metal
salt of either; a fatty alcohol sulphate (preferably
ethoxylated, in particular sodium lauryl ether
0 sulphate); an alkylbenzene sulfonate (preferably linear alkylbenzene sulfonate), or mixtures thereof.
14. The composition according to claim 12, wherein the non-
ionic surfactant is C8-C35 alkoxylated, preferably C3-
5 C30, more preferably C10-C24/ most preferably Cio-Cia.
15. The composition according to claim 3, wherein the
molecular weight of the polymeric non-ionic surfactant
is from 2400 to 11500 Daltons.

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16. A method for increasing the deposition of soap onto a
textile, comprising the steps:
(a) provision of a softening in the wash laundry composition according to claim 1; and,
(b) contacting one or more textile articles with the composition at one or more points during the main wash of a laundering process; and,
(c) allowing the textile articles to dry or mechanically tumble-drying them.
17. A method to reduce the redeposition of soil onto a
textile, comprising the steps:
(a) provision of a softening in the wash laundry composition as described herein; and,
(b) contacting one or more textile articles with the composition at one or more points during the main wash of a laundering process; and,
(c) allowing the textile articles to dry or mechanically tumble-drying them.
Dated this 20th day of March 2009


Documents:

553-MUMNP-2009-ANNEXURE TO FORM 3(15-10-2012).pdf

553-MUMNP-2009-CLAIMS(AMENDED)-(15-10-2012).pdf

553-MUMNP-2009-CLAIMS(AMENDED)-(21-2-2014).pdf

553-MUMNP-2009-CLAIMS(MARKED COPY)-(15-10-2012).pdf

553-MUMNP-2009-CLAIMS(MARKED COPY)-(21-2-2014).pdf

553-mumnp-2009-claims.doc

553-mumnp-2009-claims.pdf

553-MUMNP-2009-CORRESPONDENCE(16-5-2013).pdf

553-MUMNP-2009-CORRESPONDENCE(16-6-2010).pdf

553-MUMNP-2009-CORRESPONDENCE(22-2-2011).pdf

553-MUMNP-2009-CORRESPONDENCE(26-3-2013).pdf

553-MUMNP-2009-CORRESPONDENCE(IPO)-(24-9-2009).pdf

553-mumnp-2009-correspondence.pdf

553-mumnp-2009-description(complete).doc

553-mumnp-2009-description(complete).pdf

553-MUMNP-2009-EP DOCUMENT(15-10-2012).pdf

553-mumnp-2009-form 1.pdf

553-MUMNP-2009-FORM 13(9-2-2012).pdf

553-MUMNP-2009-FORM 18(16-6-2010).pdf

553-mumnp-2009-form 2(title page).pdf

553-mumnp-2009-form 2.doc

553-mumnp-2009-form 2.pdf

553-MUMNP-2009-FORM 3(10-12-2013).pdf

553-MUMNP-2009-FORM 3(12-08-2011).pdf

553-MUMNP-2009-FORM 3(15-2-2011).pdf

553-MUMNP-2009-FORM 3(15-2-2012).pdf

553-MUMNP-2009-FORM 3(16-8-2011).pdf

553-MUMNP-2009-FORM 3(18-2-2011).pdf

553-MUMNP-2009-FORM 3(22-6-2013).pdf

553-MUMNP-2009-FORM 3(23-1-2013).pdf

553-MUMNP-2009-FORM 3(24-2-2010).pdf

553-MUMNP-2009-FORM 3(4-8-2010).pdf

553-MUMNP-2009-FORM 3(8-8-2012).pdf

553-mumnp-2009-form 3.pdf

553-mumnp-2009-form 5.pdf

553-MUMNP-2009-OTHER DOCUMENT(21-2-2014).pdf

553-MUMNP-2009-PCT-IB-373(15-10-2012).pdf

553-mumnp-2009-pct-isa-210.pdf

553-MUMNP-2009-PCT-ISA-237(15-10-2012).pdf

553-mumnp-2009-pct-isa-237.pdf

553-MUMNP-2009-PETITION UNDER RULE-137(21-2-2014).pdf

553-MUMNP-2009-REPLY TO EXAMINATION REPORT(15-10-2012).pdf

553-MUMNP-2009-REPLY TO HEARING(21-2-2014).pdf

553-mumnp-2009-wo international publication report a1.pdf


Patent Number 259829
Indian Patent Application Number 553/MUMNP/2009
PG Journal Number 13/2014
Publication Date 28-Mar-2014
Grant Date 28-Mar-2014
Date of Filing 20-Mar-2009
Name of Patentee HINDUSTAN UNILEVER LIMITED
Applicant Address UNILEVER HOUSE, B.D. SAWANT MARG, CHAKALA, ANDHERI EAST, MUMBAI-400 099 MAHARASHTRA, INDIA
Inventors:
# Inventor's Name Inventor's Address
1 MAHADESHWAR ANAND RAMCHANDRA MAX-TAU-STRASSE 50, LOKSTEDT, 22529, HAMBURG,
2 CARVELL MELVIN UNILEVER R&D PORT SUNLIGHT, QUARRY ROAD EAST, BEBINGTON, WIRRAL, MERSEYSIDE CH63 3JW,
PCT International Classification Number C11D 3/22
PCT International Application Number PCT/EP2007/058226
PCT International Filing date 2007-08-08
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 0618542.5 2006-09-21 U.K.