Title of Invention

LIQUID LAUNDRY CONDITIONING COMPOSITION

Abstract The present invention 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 polyvinylpyrrolidone/amphiphilic carboxy containing polymer anti-redeposition system. The cationic polymers preferably have a molecular weight of less than 850,000 daltons to afford optimal cleaning and conditioning, and must be present in an effective amount to yield a substantial conditioning benefit. A method of conditioning articles using the inventive compositions is also disclosed.
Full Text C6665/ C
FORM - 2
THE PATENTS ACT, 1970
(39 of 1970)
&
The Patents Rules, 2003
COMPLETE SPECIFICATION
(See Section 10 and Rule 13)
SOFTENING LAUNDRY DETERGENT
HINDUSTAN LEVER LIMITED, a company incorporated under , the Indian Companies Act, 1913 and having its registered office at Hindustan Lever House, 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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-SOFTENING LAUNDRY DETERGENT-
FIELD OF THE INVENTION
5 This invention relates to laundry conditioning compositions. More particularly, the invention is directed to conditioning liquid laundry compositions with improved particulate soil cleaning.
10 BACKGROUND OF THE INVENTION
Traditionally, textile fabrics, including clothes, have been cleaned with laundry detergents, which provide excellent soil removal," but can often make garments feel harsh after
15 washing. To combat this problem, a number of fabric
conditioning technologies, including rinse-added softeners, dryer sheets, and 2-in-1 detergent softeners, have been developed. 2-in-1 detergent softeners have normally been the most convenient of these technologies for consumers, but
20 many of these existing technologies still have
disadvantages. One of the more effective technologies for this type of product, systems comprising cationic polymers, softens quite well but can contribute to soil deposition, hindering the cleaning performance of the detergent.
25
Anionic soil release and antiredeposition polymers are often used to improve cleaning, but normally, the amount of certain types of anionic polymers added to a fabric conditioning system including cationic polymers is
30 minimized. It is believed, without wishing to be bound by

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theory, that anionic polymers can complex with the cationic polymers and have a detrimental effect on softening.

Softening laundry detergent compositions have been disclosed
5 in published U.S. Patent Nos. 6,616,705; 6,620,209; and 4,844,821.
Washer added fabric softening compositions have been disclosed in U.S. Patent Nos. 4,913,828 and 5,073,274.
10 Fabric softener compositions have been disclosed in WO 00/70005 and U.S. Patent No. 6,492,322.
Lazare-Laporte, et al., European Patent No. EP 0 786 517 discloses a detergent composition including (a) surfactant
15 material, (b) amphiphilic carboxy containing polymer, and (c) uncharged polymer. A process for producing suspending liquid laundry detergents has been disclosed in Hsu, U.S. Patent No. 6,369,018. Hsu discloses the use of cationic cellulose ether (polymer JR ) in an anionic surfactant
20 containing liquid detergent and further requires a
polysaccharide polymer such as xanthan gum. As optional, Hsu et al. describe soil release polymers in encapsulated form.
25 A need remains for softening laundry detergent compositions including cationic polymers for improved softening achieved through adding the compositions in the wash cycle of automatic washing machines, while avoiding soil redeposition. Surprisingly, we have found that certain
30 anionic polymers are compatible with cationic fabric
conditioning polymers, allowing the formulation of products

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that give excellent softening without compromising cleaning performance.
SUMMARY; OF THE INVENTION
5
A conditioning liquid laundry composition with improved particulate soil cleaning comprising:
a. at least 5 % of at least one anionic surfactant;
10 b. 0.01 % to 5% of at least one amphiphilic carboxy containing polymer, preferably, an anionic polyacrylate;
c. 0.05 % to 3 % of polyvinylpyrrolidone polymer (an uncharged polymer); and
15 d. at least one cationic conditioning polymer.
Preferably, the inventive laundry composition has a Softening Parameter of greater than 40, a delta E of less than 12, and one or more of the cationic polymers has a
20 molecular weight of less than 850,000 daltons. More preferably, the inventive composition has a Softening Parameter of greater than 70; most preferably, the Softening Parameter is greater than 80, for maximum softening at the same cleaning capacity.
25
In another aspect, this invention is directed to a method for conditioning textiles comprising, in no particular order, the steps of:
30 a. providing a laundry detergent or fabric
softener composition comprising at least one

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anionic surfactant and at least one cationic polymer, in a ratio and concentration to effectively soften and condition fabrics under predetermined laundering conditions;
5
b. contacting one or more articles with the composition at one or more points during a laundering process; and
10 c. allowing the articles to dry or mechanically
tumble-drying them.
Preferably, the amphiphilic carboxy containing polymer is an anionic polyacrylate polymer.
15
Cationic polymers include dimethyl diallyl ammonium chloride/acrylamide copolymer, dimethyl diallyl ammonium chloride/acrylic acid/acrylamide terpolymer, vinylpyrrolidone/methyl vinyl imidazolium chloride
20 copolymer, polydimethyl diallyl ammonium chloride, starch
hydroxypropyl trimmonium chloride, polymethacryl amidopropyl trimethyl ammonium chloride, acrylamidopropyl trimmonium chloride/acrylamide copolymer, guar hydroxypropyl trimonium chloride, hydroxyethyl cellulose derivatized with trimethyl
25 ammonium substituted epoxide, and mixtures thereof.

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DETAILED DESCRIPTION OF THE INVENTION

The present invention is directed to conditioning liquid laundry compositions which deliver both effective softening
5 and effective particulate soil cleaning, including:
(a) at least 5 % of one or more anionic surfactant;
(b) 0.01 % to 5% of at least one amphiphilic carboxy containing polymer, preferably an anionic
polyacrylate;
10 (c) 0.05 % to 3 % of polyvinylpyrrolidone (an uncharged polymer); and
(d) one or more cationic polymers that deliver a high level of conditioning to fabrics.
15 The present invention is based on the surprising finding that certain cationic polymer and anionic surfactant mixtures provide excellent conditioning to laundered fabrics, while effectively preventing redeposition with inclusion of anionic polymer/polyvinylpyrrolidone anti-
20 redeposition system. Preferably, the anionic polymer is an amphiphilic carboxy containing polymer.
In a preferred embodiment, the compositions of the present invention yield softening parameters of greater than 70, a
25 delta E of less than 12, and one or more of the cationic polymers has a molecular weight of less than 850,000 daltons. More preferably, the inventive composition has a delta E of less than 7 and a Softening Parameter of greater than 80, for maximum softening at a given cleaning capacity.
30

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As used herein, the term "comprising" means including, made up of, composed of, consisting and/or consisting essentially of.
As used herein, the term "substantially free of precipitation"
5 means that insoluble and substantially insoluble matter will be limited to less than 10% of the composition, more preferably tO 5% or less.
Except in the operating and comparative examples, or where
10 otherwise explicitly indicated, all numbers in this description indicating amounts or ratios of material or conditions of reaction, physical properties of materials and/or use are to be understood as modified by the word "".
15 ANIONIC SURFACTANT
In order to attain the desired level of softening, with a Softening Parameter of greater than 70, the inventive softening laundry compositions contain greater than 5%
20 anionic surfactant by weight of the composition.
The anionic surfactants used in this invention can be any anionic surfactant that is water soluble. "Water soluble" surfactants are, unless otherwise noted, here defined to
25 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 with an average molecular weight of less than 10,000, comprising one or more functional groups
30 that exhibit a net anionic charge when in aqueous solution at the normal wash pH of between 6 and 11. It is preferred

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that at least one or the anionic surfactants used in this
invention be an alkali or alkaline earth metal salt of a natural or synthetic fatty acid containing between 4 and 30 carbon atoms. It is especially preferred to use a mixture
5 of carboxylic acid salts with one or more other anionic surfactants. Another important class of anionic compounds are the water soluble salts, particularly the alkali metal salts, .of organic sulfur reaction products having in their molecular structure an alkyl radical containing from 6 to 24
10 carbon atoms and a radical selected from the group
consisting of sulfonic and sulfuric acid ester radicals.
Carboxylic Acid Salts
15 R1COOM
where R1 is a primary or secondary alkyl group of 4 to 30 carbon atoms and M is a solubilizing cation. The alkyl group represented by R1 may represent a mixture of chain
20 lengths and may be saturated or unsaturated, although it is preferred that at least two thirds of the R1 groups have a chain length of between 8 and 18 carbon atoms. Nonlimiting examples of suitable alkyl group sources include the fatty acids derived from coconut oil, tallow, tall oil and palm
25 kernel oil. For the purposes of minimizing odor, however, it is often desirable to use primarily saturated carboxylic acids. Such materials are available from many commercial sources, such as Uniqema (Wilmington, Del.) and Twin Rivers Technologies (Quincy, Mass.). The solubilizing cation, M,
30 may be any cation that confers water solubility to the product, although monovalent moieties are generally preferred. Examples of acceptable solubilizing cations for

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use with this invention include alkali metals such as sodium and potassium, which are particularly preferred, and amines such as triethanolammonium, ammonium and morpholinium. Although, when used, the majority of the fatty acid should
5 be incorporated into the formulation in neutralized salt
form, it is often preferable to leave a small amount of free fatty acid in the formulation, as this can aid in the maintenance of product viscosity
10 Primary Alkyl Sulfates
R20SO3M
where R2 is a primary alkyl group of 8 to 18 carbon atoms and
15 M is a solubilizing cation. The alkyl group R2 may have a - - mixture of chain lengths. It is preferred that at least two-thirds of the R2 alkyl groups have a chain length of 8 to 14 carbon atoms. This will be the case if R2 is coconut alkyl, for example. The solubilizing cation may be a range
20 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 ammonium ions, such as trialkanolammonium or trialkylammonium.
25
Alkyl Ether Sulfates
R30(CH2CH20)nS03M
30 where R3 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

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solubilizing cation. The alkyl group R3 may have a mixture
of chain lengths. It is preferred that at least two-thirds of the R3 alkyl groups have a chain length of 8 to 14 carbon atoms. This will be the case if R3 is coconut alkyl, for
5 example. Preferably n has an average value of 2 to 5.
Ether sulfates have been found to provide viscosity build in certain of the formulations of this invention, and thus are considered a preferred ingredient.
10 Fatty Acid Ester Sulfonates
R4CH(S03M)C02R5
Where R4 is an alkyl group of 6 to 16 atoms, R5 is an alkyl
15 group of 1 to 4 carbon atoms and M is a solubilizing cation. The group R4 may have a mixture of chain lengths. Preferably at least two-thirds of these groups have 6 to 12 carbon atoms. This will be the case when the moiety R8CH(-) C02 (-) is derived from a coconut source, for instance. It is
20 preferred that R5 is a straight chain alkyl, notably methyl or ethyl.
Alkyl Benzene Sulfonates
25 R6ArS03M.

where R6 is an alkyl group of 8 to 18 carbon atoms, Ar is a benzene ring (C6H4) and M is a solubilizing cation. The group R6 may be a mixture of chain lengths. A mixture of
30 isomers is typically used, and a number of different grades, such as "high 2-phenyl" and "low 2-phenyl" are commercially

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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
5 sulfonation of alkylbenzenes, which can be produced by
either the HF-catalyzed alkylation of benzene with olefins or an,AlCl3-catalyzed process that alkylates benzene with chloroparaffins, and are sold by, for example, Petresa (Chicago, 111.) and Sasol (Austin, Tex.). Straight chains
10 of 11 to 14 carbon atoms are usually preferred.
Paraffin sulfonates having 8 to 22 carbon atoms, preferably 12 to 16 carbon atoms, in the alkyl moiety. They are usually produced by the sulfoxidation of petrochemically-
15 derived normal paraffins. These surfactants are
commercially available as, for example, Hostapur SAS from Clariant (Charlotte, N.C.).
Olefin sulfonates having 8 to 22 carbon atoms, preferably 12
20 to 16 carbon atoms. U.S. Patent No. 3,332,880 contains a description of suitable olefin sulfonates. Such materials are sold as, for example, Bio-Terge AS-40, which can be purchased from Stepan (Northfield, 111.).
25 Sulfosuccinate esters
R7OOCCH2CH (S03~M+) COOR8
are also useful in the context of this invention. R7 and R8
30 are alkyl groups with chain lengths of between 2 and 16 carbons, and may be linear or branched, saturated or

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unsaturated. A preferred sulphosuccinate is sodium bis (2-
ethylhexyl) sulfosuccinate, which is commercially available under the tradename Aerosol OT from Cytec Industries (West Paterson, N.J.).
5
Organic phosphate based anionic surfactants include organic phosphate esters such as complex mono- or diester phosphates of hydroxyl- terminated alkoxide condensates, or salts thereof. Included in the organic phosphate esters are
10 phosphate ester derivatives of polyoxyalkylated alkylaryl phosphate esters, of ethoxylated linear alcohols and ethoxylates of phenol. Also included are nonionic alkoxylates having a sodium alkylenecarboxylate moiety linked to a terminal hydroxyl group of the nonionic through
15 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.
Other preferred anionic surfactants include the fatty acid
20 ester sulfonates with formula:
R9CH(S03M)C02R10
where the moiety R9CH(-)C02 (-) is derived from a coconut 25 source and R10 is either methyl or ethyl; primary alkyl sulfates with the formula:
R11OS03M

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wherein R11 is a primary alkyl group of 10 to 18 carbon atoms and M is a sodium cation; and paraffin sulfonates, preferably with 12 to 16 carbon atoms to the alkyl moiety.
5 Other anionic surfactants preferred for use with this
formulation include isethionates, sulfated triglycerides, alcohol sulfates, ligninsulfonates, naphthelene sulfonates and alkyl naphthelene sulfonates and the like.
10 AMPHIPHILIC CARBOXY CONTAINING POLYMER----
The amphiphilic carboxy containing polymers according to the present invention are anioinic polymers, such as, preferably, polyacrylates. "Anionic polymer" is defined as
15 a molecule with a molecular weight in excess of 10,000
daltons comprised of monomer units where at least- one of the monomer units making up the polymer contains a negative charge over a portion of the wash pH range of 6 to 11, and those monomer units not containing anionic charges being
20 nonionic in nature..
The amphiphilic carboxy containing polymers comprise monomers comprising a carboxylate or carboxylic acid group, said monomers being preferably selected from carboxylated
25 sugar units, carboxylated unsaturated units (like acrylate, methacrylate, itaconate, maleate and mixtures) and mixtures thereof. The amphiphilic carboxy containing polymer also contains monomer units which are uncharged. Preferably, these uncharged monomers are selected from vinylacetate,
30 vinylpyrrolidorte, vinylpyridine, vinylimidazol, styrene,

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alkyl – esters of the above carboxylate monomers (e. g. 1-20)
alk(en)yl, preferably C5-16 alkyl) and mixtures thereof.
More preferably, the amphiphilic carboxy containing polymers
5 are of the following type: styrene-acrylate copolymer, acrylate-alkylmethacrylate copolymers, ethoxylated ethacrylate-acrylate copolymer, methacrylate- vinylacetate copolymer or itaconate-vinylacetate copolymers. Examples of such polymers are Narlex LD55, Narlex H100, Narlex H1200 and
10 Narlex;DC1 (Narlex is a registered Trade Mark of National Starch)1.
Additionally, the amphiphilic carboxy containing polymers may preferably be copolymers of ethoxylated maleate and
15 dodecene-1. An example thereof is Dapral GE 202 (Trade Mark). Optionally, the amphiphilic carboxy containing polymer is partly ethoxylated, e.g. with a PEG 350 side chain.
20 Most preferably, the amphiphilic carboxy containing polymers are selected from copolymers of acrylic acid and styrene. Examples are Narlex H100 and Narlex H1200 (Trade Mark, National Starch).
25 The amphiphilic carboxy containing polymer is present at a level of 0.01 % to 5% by weight of the composition, preferably 0.025 % to 2%, more preferably 0.05 % to 0.5 %.

The ratio of carboxy containing hydrophilic monomers to
30 uncharged monomers can vary in a broad range e.g. from 100:1 to 0.5:1> preferably from 50:1 to 1:1.

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Polyvinylpyrrolidone (PVP)
Detergent compositions of the present invention include
5 polyvinylpyrrolidone ("PVP"), an uncharged polymer generally having an average molecular weight of from 2,500 to 400,000, preferably from 5,000 to 200,000, more preferably from 5,000 to 50,000 and most preferably from 5,000 to 15,000. Suitable polyvinylpyrrolidones are commercially
10 available from ISP Corporation, New York, NY and Montreal,
Canada under the product names PVP K-15 (viscosity molecular weight of 10,000), PVP K-30 (average molecular weight of 40,000), PVP K-60 (average molecular weight of 160, 000), and PVP -K-90 (average molecular weight of 360,000). PVP K-15
15 is preferred due to its relatively small molecular weight. Other suitable polyvinylpyrrolidones which are commercially available from BASF Corporation include Sokalan HP 165 (Trade Mark) and Sokalan HP 12 (Trade Mark). Polyvinylpyrrolidones will be known to persons skilled in
20 the detergent field; see for example EP-A-262,897 and EP-A-256,696.
The level of the uncharged polymer in the inventive softening laundry composition is 0.05 % to 3%, preferably
25 0.25 % to 1.5%, for instance 0.3% by weight of the composition.
CATIONIC POLYMER
30 A cationic polymer is here defined to include polymers which, because of their molecular weight or monomer

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composition, are soluble or dispersible to at least the 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
5 the list of copolymerizable cationic or amphoteric monomers. These 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.
10 Wenninger and G.N. McEwen, The Cosmetic, Toiletry, and Fragrance Association, 1993. 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.
15
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 preferably be no greater than 1:5, and more preferably less
20 than 1:10. The ratio of cationic polymer to anionic surfactant in the composition, oh a mass basis, should be less than 1:4, and ideally less than 1:10, as well. The preferred compositions of this invention contain low levels, if any at all, of builder. Generally, these will comprise
25 less than 10%, preferably less than 7% and most preferably less than 5% by weight of total phosphate and zeolite.

Specifically, monomers useful in this invention may be represented structurally as etiologically unsaturated
30 compounds as in formula I.

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12
^ R
9=9 i
Rl3 Rl4
wherein R12 is hydrogen, hydroxyl, methoxy, or a C1. to C30 straight or branched alkyl radical; R13 is hydrogen, or a C1-30 straight or branched alkyl, a C1-30 straight or branched alkyl
5 substituted aryl, aryl substituted C1-30 straight or branched alkyl radical, or a poly oxyalkene condensate of an aliphatic radical; and R14 is a heteroatomic alkyl or aromatic radical containing either one or more quaternerized nitrogen atoms or one or more amine groups which possess a
10 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 6 or greater.
Examples of cationic monomers of formula I include, but are
15 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 4-20 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 i-vinyl imidazolium salt; acrylamido and
25 methacrylamido derivatives such as co-poly dimethyl aminopropylmethacrylamide, co-poly acrylamidopropyl trimethyiammonium salt and co-poly methacrylamidopropyl trimethylammonium salt; acrylate and methacrylate derivatives such as co-poly dimethyl aminoethyl

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(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-1-
5 oxo-2 propenyl) oxy] - salt.
Also included among the cationic monomers suitable for this invention are co-poly vinyl amine and co-polyvinylammonium salt; co-poly diallylamine, co-poly nethyldiallylamine, and
10 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 quaternized ethoxylated ethylene imine; co-poly [ (dimethylimino) trimethylene (dimethylimino) hexamethylene
15 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
20 Dictionary" edited by Wenninger and McEwen.
Additionally, useful polymers are the cationic co-poly amido-amine having the chemical structure of formula II.


and the quaternized polyimidazoline having the chemical 5 structure of formula III

10
wherein the molecular weight of structures II and III can vary between 10,000 and 10,000,000 Daltons and each is terminated with an appropriate terminating group such as, for example, a methyl group.
15

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An additional, and highly preferred class of cationic
monomers suitable for this invention are those arising from natural sources and include, but are not limited to, cocodimethylammonium hydroxypropyl oxyethyl cellulose,
5 lauryldimethylammonium hydroxypropyl oxyethyl cellulose, stearyldimethylammonium hydroxypropyl oxyethyl cellulose, and stearyldimethylammonium hydroxyethyl cellulose; guar 2- hydroxy-3-(trimethylammonium) propyl ether salt; cellulose 2-hydroxyethyl 2-hydroxy 3-(trimethyl ammonio) propyl ether
10 salt.
It is likewise envisioned that monomers containing cationic sulfonium salts such as co-poly 1-[3-methyl-4-(vinyl-benzyloxy)phenyl] tetrahydrothiophenium chloride would also
15 be applicable to the present invention.
The counterion of the comprising cationic co-monomer is freely chosen from the halides: chloride, bromide, and iodide; or from hydroxide, phosphate, sulfate, hydrosulfate,
20 ethyl sulfate, methyl sulfate, formate, and acetate.
Another class of cationic polymer useful for the present invention are the cationic silicones. These materials are characterized by repeating dialkylsiloxane interspersed or
25 end terminated, or both, with cationic substituted siloxane units. Commercially available materials of this class are the Abil Quat polymers from Degussa Goldschmidt (Virginia).
The weight fraction of the cationic polymer which is
30 composed of the above-described cationic monomer units can range from 1 to 100%, preferably from 10 to 100%, and most

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preferably from 15 to 80% of the entire polymer. The remaining monomer units comprising the cationic polymer are chosen from the class of anionic monomers and the class of nonionic monomers or solely from the class of nonionic
5 monomers. In the former case, the polymer is an amphoteric polymer while in the latter case it can be a cationic polymer, provided that no amphoteric co-monomers are present. Amphoteric polymers should also be considered within the scope of this disclosure, provided that the
10 polymer unit possesses a net positive charge at one or more points over the wash pH range of pH'6 to 11. The anionic monomers comprise a class of monounsaturated compounds which possess a negative charge over the portion of the pH range from pH 6 toil in which the cationic monomers possess a
15 positive charge. The nonionic monomers comprise a class of monounsaturated compounds which are uncharged over the pH range from pH 6 to 11 in which the cationic monomers possess a positive charge. It is expected that the wash pH at which this invention would be employed would either naturally fall
20 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 nonionic monomers are the vinyl (ethylenically unsaturated) substituted compounds corresponding to formula IV.
25
f r rf iv
R16R17

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wherein—R15, R16, and R17—a-re independently hydrogen,—a C1 to
C3 alkyl, a carboxylate group or a carboxylate group substituted with a C1 to C30 linear or branched heteroatomic alkyl or aromatic radical, a heteroatomic radical or a poly
5 oxyalkene condensate of an aliphatic radical.
The class of anionic monomers are represented by the compound described by formula IV in which at least one of the R15, R16, or R17 comprises a. carboxylate, substituted
10 carboxylate, phosphonate, substituted phosphonate, sulfate, substituted sulfate, sulfonate, or substituted sulfonate group. -Preferred monomers in this class include but are not limited to "-ethacrylic acid, "-cyano acrylic acid, $,$-dimethacrylic acid, methylenemaionic acid, vinylacetic acid,
15 allylacetic acid, acrylic acid, ethylidineacetic acid, propylidineacetic acid, crotonic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid, sorbic acid, angelic acid, cinnamic acid, $-styryl acrylic acid (1-carboxy-4-phenyl butadiene-1,3), citraconic acid, glutaconic
20 acid, aconitic acid, "-phenylacrylic acid, $-acryloxy
propionic acid, citraconic acid, vinyl benzoic acid, N-vinyl succinamidic acid, and mesaconic acid. Also included in the list of preferred monomers are co-poly styrene sulfonic acid, 2-methacryloyloxymethane-l-sulfonic acid, 3-
25 methacryloyloxypropane-1-sulfonic acid, 3-(vinyloxy)propane-1-sulfonic acid, ethylenesulfonic acid, vinyl sulfuric acid, 4-vinylphenyl sulfuric acid, ethylene phosphonic acid and vinyl phosphoric acid. Most preferred monomers include
acrylic acid, methacrylic acid arid maleic acid. The
30 polymers useful in this invention may contain the above

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monomers and the alkali metal, alkaline earth metal, and ammonium salts thereof.
The class of nonionic monomers are represented by the
5 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 not limited to, vinyl alcohol; vinyl acetate; vinyl methyl ether; vinyl ethyl ether; acrylamide, methacrylamide and
10 other modified acrylamides; vinyl propionate; alkyl
acrylates (esters of acrylic or methacrylic acid); and hydroxyalkyl acrylate esters. A second class of nonionic monomers include co-poly ethylene oxide, co-poly propylene oxide, and co-poly oxymethylene. A third, and highly
15 preferred, class of nonionic monomers includes naturally derived materials such as hydroxyethylcellulose and guar gum.
It is highly preferred, and often necessary in the case of
20 certain compositions, to formulate the products of this invention with the proper ratio of cationic polymer to anionic surfactant. Too high a ratio can result in reduced softening, poor packing at the interface, unacceptable dissolution times and, in the case of liquid products, an
25 excessively high viscosity which can render the 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
30 environmental reasons, and gives the formulator greater
flexibility in making a stable product. The preferred ratio

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—of cationic polymer : total surfactant will be less than
1:4, whereas the preferred ratio of cationic polymer :
anionic surfactant will be less than 1:5, and the preferred
ratio of cationic polymer : nonionic surfactant will be less
5 than 1:5. More preferably, the ratios of cationic polymer :
total surfactant, cationic polymer : anionic surfactant and
cationic polymer: total surfactant will be less than 1:10.
In terms of absolute fraction, this often means that the
concentration of cationic polymer will generally be less
10 than 5%, preferably less than 2% and most preferably less
than 1% of the total product mass.
Without wishing to be bound by theory, it is believed that the species responsible for providing a conditioning benefit
15 in these formulations is a polymer / surfactant complex. The compositions of this invention will preferably comprise at least 2%, more preferably at least 5%, and most preferably at least 10% of one or more surfactants with a hydrophilic/lipophilic balance (HLB, defined in U.S. Pat.
20 No. 6,461,387) of more than 4.
Many of the aforementioned cationic polymers can be synthesized in, and are commercially available in, a number of different molecular weights. In order to achieve optimal
25 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
30 entrap soils and prevent them from being removed. The use of cationic polymers with an average molecular weight of

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less than 850,000 daltons, and especially those with an average molecular weight of less than 500,000 daltons can help to minimize this effect without significantly reducing the softening performance of properly formulated products.
5 On the other hand, polymers with a molecular weight of
10,000 daltons or less are believed to be too small to give an effective softening benefit.
Conditioning Benefits
10
The compositions of this invention are intended to confer conditioning benefits to garments, home textiles, carpets and other fibrous or fiber-derived articles. These formulations are not to be limited to conditioning benefits,
15 however, and will often be multi-functional.
The primary conditioning benefit afforded by these products is softening. Softening includes, but is not limited to, an improvement in the handling of a garment treated with the
20 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 article that is softened as "silky" or "fluffy", and generally prefer the feel of treated garments to those that
25 are unsoftened. It is desirable that the formulae of this invention, when used as instructed, yield a softness parameter of more than 70. The preferred products give a softness parameter of more than 80.
30 The conditioning benefits of these compositions are not
limited to softening, however. They may, depending on the

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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 fibers
5 of textile articles, which can reduce wear, pilling and color fading, and provide a shape-retention benefit. This lubricating layer may also, without wishing to be bound by theory, provide a substrate on the fabric for retaining fragrances and other benefit agents. Furthermore, the
10 cationic polymers of this invention are also believed to
inhibit the transfer, bleeding and1loss of vagrant dyes from fabrics during the wash, further improving color brightness over time.
15 Form of the Invention
The present invention can take any of a number of forms, including a dilutable fabric conditioner, that may be an isotropic liquid, a surfactant-structured liquid or any
20 other laundry detergent form known to those skilled in the art. A "dilutable fabric conditioning" composition is defined, for the purposes of this disclosure, as a product intended to be used by being diluted with water or a nonaqueous solvent by a ratio of more than 100:1, to produce a
25 liquor suitable for treating textiles and conferring to them one or more conditioning benefits. As such, compositions intended to be used as combination detergent / softeners, along with fabric softeners sold for application in the final rinse of a wash cycle and fabric softeners sold for
30 application at the beginning of a wash cycle are all
considered within the scope of this invention. For all

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cases, however, these compositions are intended to be used by being diluted by a ratio of more than 100:1 with water or a non-aqueous solvent, to form a liquor suitable for treating fabrics.
Particularly preferred forms of this invention include combination 'detergent / softener products, especially as a liquid, and isotropic or surfactant-structured liquid products intended for application as a fabric softener during the wash cycle or the final rinse. For the purposes of this disclosure, the term "fabric softener" shall be understood to mean a consumer or industrial product added to the wash, rinse or dry cycle of a laundry process for the express or primary purpose of conferring one or more
conditioning benefits.

The pH range of the composition is 2 to 12. As many cationic polymers can decompose at high pH, especially when they contain amine or phosphine moieties, it is desirable to
20 keep the pH of the composition below the pKa of the amine or phosphine group that is used to quaternize 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
25 product odor. As such, a reasonable margin of 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 favor polymer stability. Although the preferred pH of the product will depend on the particular cationic polymer selected for
30 formulation, typically these values should be below 8.5 to 10. Wash liquor pH, especially in the case of 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 odor 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 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 7 or 8 to ensure effective softening.
25 The formulation may be buffered at the target pH of the composition.
Method of Use
30 The following details a method for conditioning textiles comprising the steps, in no particular order of:

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a. providing a laundry detergent or fabric
softener composition comprising at least one
anionic surfactant and at least one cationic
5 polymer, in a ratio and concentration to
effectively soften and condition fabrics under predetermined laundering conditions; and an anti-redeposition system including PVP and an amphiphilic carboxy containing polymer;
10
b. contacting one or more articles with the
composition at one or more points during a
laundering process; and
15 c. allowing the articles to dry or mechanically-
tumble-drying them.
The softening parameter is greater than 70, preferably greater than 80, and the composition comprises more than 5%
20 by weight of one or more anionic surfactants having an HLB of greater than 4.
Amounts of composition used will generally range between 10g and 300g total product per 3 kg of conditioned fibrous
25 articles, depending oh the particular embodiment chosen and other factors, such as consumer preferences, that influence product use behavior.

A consumer that would use the present invention could also
30 be specifically instructed to contact the fabrics with the inventive composition with the purpose of simultaneously

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cleaning and softening the said fabrics. This approach
would be recommended when the composition takes the form of a softening detergent to be dosed at the beginning of the wash cycle.
5
Insoluble Matter
It is preferred that the compositions of this disclosure be formulated with low levels, if any at all, of any matter
10 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 level of less than 0.001% in the specified solvent.
15 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 matter can be attracted and coordinated to the cationic
20 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 of softness.
25
In addition, as liquid compositions are a preferred embodiment of this invention, and insoluble matter is often difficult to formulate into a liquid, it is further desirable to minimize its level in the product. For this
30 invention it is desirable to have the liquid compositions be substantially transparent for esthetic reasons. Thus, for

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the compositions of this invention it is desirable to have a percent transmittance of light of greater than 50 using a 1 centimeter cuvette at a wavelength of 570 nanometers wherein the composition is measured in the absence of dyes.
5 Alternatively, transparency of the composition may be
measured as having an absorbence (A) at 570 nanometers of less than 0.3 which is in turn equivalent to percent transmittance of greater than 50 using the same cuvette as above. The relationship between absorbance and percent
10 transmittance is:
Percent Transmittance = 100(1/inverse log A)
Preferably/ insoluble and substantially insoluble matter
15 will be limited to less than 10% of the composition, more preferably to 5%. Most preferably, especially in the case of liquid conditioning compositions, the composition will be essentially free, or have less than 5%, of substantially insoluble matter or precipitation.
20
Optional Ingredients
In addition to the above-mentioned essential elements, the formulator may include one or more optional ingredients,
25 which are often very helpful in rendering the formulation more acceptable for consumer use.
Examples of optional components include, but-are not limited to: nonionic surfactants, amphoteric and zwitterionic
30 surfactants, cationic surfactants, hydrotropes, fluorescent whitening agents, photobleaches, fiber lubricants, reducing

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agents,—enzymes,—enzyme stabilizing agents, powder finishing
agents, defoamers, builders, bleaches, bleach catalysts, soil release agents, dye transfer inhibitors, buffers, colorants, fragrances, pro-fragrances, rheology modifiers,
5 anti-ashing polymers, preservatives, insect repellents, soil repellents, water-resistance agents, suspending agents, aesthetic agents, structuring agents, sanitizers, solvents, fabric finishing agents, dye fixatives, wrinkle-reducing agents, fabric conditioning agents and deodorizers.
10
Preservatives
Optionally, a soluble preservative may be added to this invention. The use of a preservative is especially
15 preferred when the composition of this invention is a
liquid, as these products tend to be especially susceptible to microbial growth.
The use of a broad-spectrum preservative, which controls the
20 growth of bacteria and fungi is preferred. Limited-spectrum preservatives, which are only effective on a single group of 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
25 on the circumstances of manufacturing and consumer use, it may also be desirable to use more than one broad-spectrum preservative to minimize the effects of any potential contamination.
30 The use of both biocidal materials, i.e. substances that kill or destroy bacteria and fungi, and biostatic

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preservatives, i.e. substances that regulate or retard the growth of microorganisms, may be indicated for this invention.
5 In order to minimize environmental waste and allow for the maximum window of formulation stability, it is preferred that preservatives that are effective at low levels be used. Typically, they will be used only at an effective amount. For the purposes of this disclosure, the term "effective
10 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 are hot negatively affected. For most preservatives, an effective amount will be between 0.00001% and 0.5% of the
15 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 appropriate preservative and use level.
20 Preferred preservatives for the compositions of this
invention include organic sulfur compounds, halogenated materials, cyclic organic nitrogen compounds, low molecular weight aldehydes, quaternary ammonium materials, dehydroacetic acid, phenyl and phenoxy compounds and
25 mixtures thereof.
Examples of preferred preservatives for use in the compositions of the present invention include: a mixture of 77% 5-chloro-2-methyl-4-isothiazolin-3-one and 23% 2-
30 methyl-4-isothiazolin-3-one, which is sold commercially as a 1.5% aqueous solution by Rohm & Haas (Philadelphia, Pa.)

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under-the trade name Kathon; 1,2-benzisothiazolin 3-one,
which is sold commercially by Avecia (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
5 (hydroxymethyl)-5,5-dimethyl-2,4 imidazolidinedione and 3-butyl-2-iodopropynyl carbamate, which can be obtained, for example, as Glydant Plus from Lonza (Fair Lawn, N.J.).

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Nonionic Surfactants
Nonionic surfactants are useful in the context of this invention to both improve the cleaning properties of the
5 compositions, when used as a detergent, and to contribute to product stability. For the purposes of this disclosure, "nonionic surfactant" shall be defined as amphiphilic molecules with a molecular weight of less than 10,000, unless otherwise noted, which are substantially free of any
10 functional groups that exhibit a net charge at the normal wash pH of 6-11. Any type of nonionic surfactant may be used, although preferred materials are further discussed below.
15 Fatty Alcohol Ethoxylates:
R180(EO)n
Wherein R18 represents an alkyl chain of between 4 and 30
20 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 produced by oligomerizing fatty alcohols with ethylene oxide in the presence of an effective amount catalyst, and are
25 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 trademarks such as Alfol, Lial and Isofol from Sasol (Austin, Tex.) and Neodol, from Shell, may be manufactured
30 by any of a number of processes known to those skilled in the art, and can be derived from natural or synthetic

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sources or a combination thereof.—-Commercial alcohol
ethoxylates are typically mixtures, comprising varying chain lengths of R18 and levels of ethoxylation. Often, especially at low levels of ethoxylation, a substantial amount of
5 unethoxylated fatty alcohol remains in the final product, as well.
Because of their excellent cleaning, environmental and stability profiles, fatty alcohol ethoxylates wherein R18
10 represents an alkyl chain from 10-18 carbons and n is an average number between 5 and 12 are highly preferred.
Alkylphenol Ethoxylates:
15 R19ArO(EO)n
Where R19 represents a linear or branched alkyl chain ranging from 4 to 30 carbons, Ar is a phenyl (C6S4) ring and (E0)n is an oligomer chain comprised of an average of n moles of
20 ethylene oxide. Preferably, R19 is comprised of between 8 and 12 Carbons, and n is between 4 and l2. 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
25 Triton X-100, available from Dow Chemical (Midland, Mich.)
Ethylene Oxide / Propylene Oxide Block Polymers:
(EO)x(PO)y(EO)x or (PO)x(E0)y(PO)x
30

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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 oxide in each mole of product. Such materials tend to have
5 higher molecular weights than most nonionic surfactants, and as such can range between 1,000 and 30,000 daltons. BASF (Mount Olive, N.J.) manufactures a suitable set of derivatives and markets them under the Pluronic and Pluronic-R trademarks.
10
Other nonionic surfactants should also be considered within the scope of this invention. These include condensates of alkanolamines with fatty acids, such as cocamide DEA, polyol-fatty acid esters, such as the Span series available
15 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-alkylpyrrolidones, such as the Surfadone series of products
20 marketed by ISP (Wayne, N.J). Furthermore, nonionic
surfactants not specifically mentioned above, but within the definition, may also be used.
Fluorescent Whitening Agents
25
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
30 ultraviolet region of the spectrum and re-emits it in the visible blue range, to the compositions of this invention,

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especially if they are combination detergent / fabric
conditioner preparations. Suitable fluorescent whitening agents include derivatives of diaminostilbenedisulfonic acid and their alkali metal salts. Particularly, the salts of
5 4,4'-bis(2-anilino4-morpholino-l, 3, 5-triazinyl-6-
amino)stilbene-2,2'-disulfonic 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'-bis(2-sulfostyryl) biphenyl type,
10 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 0,3%, by mass, is normally used.
15 Commercial supplies of acceptable fluorescent whitening agents can be sourced from, for example, Ciba Specialty Chemicals (High Point, N.C.) and Bayer (Pittsburgh, Pa.).
Builders
20
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 combining; with anionic surfactants and removing them from
25 the wash liquor. The preferred compositions of this
invention, especially when used as a combination detergent / softener, contain builders.
Soluble builders, such as alkali metal carbonates and alkali 30 metal citrates, are particularly preferred, especially for
the liquid embodiment of this invention. Other builders, as

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further detailed below, may also be used, however. Often a mixture of builders, chosen from those described below and others known to those skilled in the art, will be used.
5 Alkali and Alkaline Earth Metal Carbonates:
Alkali and alkaline earth metal carbonates, such as those detailed in German patent application 2,321,001, published Nov. 15, 1973, are suitable for use as builders in the
10 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 "ah excellent environmental profile.
15
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 soda ash is generally mined as trona and further refined to
20 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 caprolactam. It is sometimes further useful to include a
25 small amount of calcium carbonate in the builder
formulation, to seed crystal formation and increase building efficacy.

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Organic Builders:
Organic detergent builders can also be Used as nonphosphate builders in the present invention. Examples of organic
5 builders include alkali metal citrates, succinates,
malonates, fatty acid sulfonates, fatty acid carboxylates, nitrilotriacetates, oxydisuccinates, alkyl and alkenyl disuccihates, oxydiacetates, carboxymethyloxy succinates, ethylenediamine tetraacetates, tartrate monosuccinates,
10 tartrate disuccinates, tartrate monoacetates, tartrate diacetates, oxidized starches, oxidized heteropolymeric polysaccharides, polyhydroxysulfonates, polycarboxylates such as polyacrylates, polymaleates, polyacetates, polyhydroxyacrylates, polyacrylate/polymaleate and
15 polyacrylate/ polymethacrylate copolymers, acrylate/maleate/vinyl alcohol terpolymers, 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
20 4,686,062. Alkali metal citrates, nitrilotriacetates, oxydisuccinates, acrylate/maleate copolymers and acrylate/maleate/vinyl alcohol terpolymers are especially preferred nonphosphate builders.
25 Phosphates:
The compositions of the present invention which utilize a water-soluble phosphate builder typically contain this builder at a level of from 1 to 90% by weight of the
30 composition. Specific examples of water-soluble phosphate builders are the alkali metal tripolyphosphates, sodium,

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potassium and ammonium pyrophosphate, sodium and potassium orthophosphate, sodium polymeta/phosphate in which the degree' of polymerization ranges from 6 to 21, and salts of phytic acid. Sodium or potassium tripolyphosphate is most
5 preferred.
Phosphates are, however, often difficult to formulate, especially into liquid products, and have been identified a potential agents that may contribute to the eutrophication
10 of lakes and other waterways. As such, the preferred compositions of this invention comprise phosphates at a level of less than 10% by weight, more preferably less than 5% by weight. The most preferred compositions of this invention are formulated to be substantially free of
15 phosphate builders.

Zeolites:

Zeolites may -also be used as builders in the present
20 invention. A number of zeolites suitable for incorporation 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 384,070B, which are sold
25 commercially by, for example, Ineos Silicas (UK), as Doucil 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
30 within the range of from 0.90 to 1.20.

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Especially preferred is zeolite MAP having a silicon to
aluminium ratio not exceeding 1.07, more preferably 1.00. The particle size of the zeolite is not critical. Zeolite A or zeolite MAP of any suitable particle size may be used.
5 In any event, as zeolites are insoluble matter, it is
advantageous to minimize their level in the compositions of
this invention. As such, the preferred formulations contain
less than 10% of zeolite builder, while especially preferred
compositions comprise less than 5% zeolite.
10
Enzyme Stabilizers
When enzymes, and especially proteases are used in liquid detergent formulations, it is often necessary to include a
15 suitable quantity of enzyme stabilizer to temporarily
deactivate it until it is used in the wash. Examples of suitable enzyme stabilizers are well-known to those skilled in the art, and include, for example, borates and polyols such as, propylene glycol. Borates are especially suitable
20 for use as enzyme stablizers because in addition to this benefit, they can further buffer the pH of the detergent product over a wide range, thus providing excellent flexibility.
25 If a borate-based enzyme stabilization system is chosen,
along with one or more cationic polymers that are at least partially comprised of carbohydrate moeities, stability problems tan result if suitable co-stablizers are not used. It is believed that this is the result of borates' natural
30 affinity for hydroxyl groups, which can create an insoluble
borate-polymer complex that precipitates from solution

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either over time or at cold temperatures. Incorporating into the formulation a co-stabilizer, which is normally a diol or polyol, sugar or other molecule with a large number of hydroxyl groups, can ordinarily prevent this. Especially
5 preferred for use as a co-stabilizer is sorbitol, used at a level that is at least 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 1.4 3 times the level of borate in the system, is sorbitol, which is effective,
10 inexpensive, biodegradable and readily available on the
market. Similar materials including sugars such as glucose and sucrose, and other poyols such as propylene glycol, glycerol", mannitol, maltitol and xylitol, should also be considered within the scope of this invention.
15
Fiber Lubricants
In order to enhance the conditioning, softening, wrinkle-reduction and protective effects of the compositions of this
20 invention, it is often desirable to include one or more
fiber 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 fibers and yarns in articles being treated, both during and after the
25 wash process. This effect can in turn improve the
consumer's perception of softness, minimize the formation of wrinkles and prevent damage to textiles during the wash. For the purposes of this disclosure, "fiber lubricants" shall be considered non-cationic materials intended to
30 lubricate fibers for the purpose of reducing the friction between fibers or yarns in an article comprising textiles

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which-provide one—or more wrinkle--reduction,—fabric -conditioning, .or protective benefit.
Examples of suitable fiber lubricants include oily sugar
5 derivatives, functionalized plant and animal-derived oils, silicones, mineral oils, natural and synthetic waxes and the like. Such ingredients often have low HLB values, less than 10, although exceeding this level is not outside of the scope of this invention.
10
Oily sugar derivatives suitable for use in this invention are taught in WO 98/16538, which are especially preferred as fiber lubricants, due to their ready availability and favorable environmental profile. When used in the
15 compositions of this invention, such materials are typically present at a level between 1% and 10% of the finished composition. Another class of acceptable ingredients includes hydrophilically-modified plant and animal oils and synthetic triglycerides. Suitable and preferred
20 hydrophilically modified plant, animal, and synthetic triglyceride oils and waxes have been identified as effective fiber lubricants. Such suitable plant derived triglyceride materials include hydrophilically modified triglyceride oils, e.g. sulfated, sulfonated, carboxylated,
25 alkoxylated, esterified, saccharide modified, and amide
derivatized oils, tall oils and derivatives thereof, and the like. Suitable animal derived triglyceride materials include hydrophilically modified fish oil, tallow, lard, and lanolin wax, and the like. An especially preferred
30 functionalized oil is sulfated castor oil, which is sold

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commercially as, for example, Freedom SCO-75, available from Noveon (Cleveland, Ohio).
Various levels of derivatization may be used provided that
5 the derivatization level is sufficient for the oil or wax derivatives to become soluble or dispersible in the solvent it is used in so as to exert a fiber lubrication effect during laundering of fabrics with a detergent containing the oil or wax derivative.
10
If this invention includes a functionalized 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
15 silicone polyether, it is preferably of one of the two general structures shown below:
Where PE represents:
Structure A


where Me represents methyl; EO represents ethylene oxide; PO represents 1, 2 propylene oxide; z represents either a
20 hydrogen or a lower alkyl radical; x, y, m, n are constants

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and can be varied to alter the properties of the
functionalized silicone.
A molecule of either structure can be used for the purposes
5 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 weight of more, than 5,000. An example of a suitable, commercially available such material is L-7622, available
10 from Crompton Corporation, (Greenwich, Ct.)
When the use of a fiber lubricant is elected, it will generally be present as between 0.1% and 15% of the total composition weight.
15
Bleach Catalyst
An effective amount of a bleach catalyst can also be present in the invention. A number of organic catalysts are
20 available such as the sulfonimines as described in U.S. Patents 5,041,232; 5,047,163 and 5,463,115.
Transition metal bleach catalysts are also useful, especially those based on manganese, iron, cobalt, titanium,
25 molybdenum, nickel, chromium, copper, ruthenium, tungsten and mixtures thereof. These include simple water-soluble salts such as those of iron, manganese and cobalt as well as catalysts containing complex ligands.
30 Suitable examples of manganese catalysts containing organic ligands are described in U.S. Pat. 4,728,455, U.S. Pat.

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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.
5 Nos. 544,440, 544,490, 549,271 and 549,272. Preferred examples of these catalysts include Mn1V2 (u-0)2 (1, 4, 7-trimethyl-1, 4, 7-triazacyclononane)2 (PF6)2, MnIII2 (u-O)1 (u-OAc)2(1,4,7- trimethyl-1, 4,7-triazacyclononane)2 (CIO4)2, MnIV4(u-o)6(1, 4, 7-triazacyclononane)4 (CIO4)4, MnIIIMnIV4 (u-
10 O)1 (u-OAc)2 (1,4, 7-trimethyl-l, 4, 7-triazacyclononane)2 (C1O4)3, MnIV(l, 4, 7-trimethyl-l, 4, 7-triazacyclononane) - (OCH3)3 (PF6) , and mixtures thereof. Other metal-based bleach catalysts include those disclosed in U.S. Pat. 4,430,243 and U.S. Pat. 5,114,611. Other examples of complexes of transition metals
15 include Mn gluconate, Mn(CF3S03)2, and binuclear Mn complexed with tetra-N-dentate and bi-N-dentate ligands, including [bipy2MnIII(u-O)2MnIvbipy2] - (CI04)3.
Iron and manganese salts of aminocarboxylic acids in general 20 are useful herein including iron and manganese
aminocarboxylate salts disclosed for bleaching in the
photographic color processing arts. A particularly useful
transition metal salt is derived from
ethylenediaminedisuccinate and any complex of this ligand 25 with iron or manganese.
Another type of bleach catalyst, as disclosed in U.S. Pat. 5,114,606, is a water soluble complex of manganese (II), (III), and/or (IV) with a ligand which is a non-carboxylate
30 polyhydroxy compound having at least three consecutive C-OH groups. Preferred ligands include sorbitol, iditol,

WO 2005/054419 PCT/EP2004/013161
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dulsitol, marmitol, xylitchol, arabitol, adonitol, meso
erythritol, meso-inositol, lactose and mixtures thereof. Especially preferred is sorbitol.
5 Other, bleach catalysts are described, for example, in European Pat. App. Pub. Nos. 408,131 (cobalt complexes), 384,503 and 306,089 (metallo-porphyrins), U.S. Pat. 4,728,455 (manganese/multidenate ligand), U.S. Pat. 4,711,748 (absorbed manganese on aluminosilicate), U.S. Pat.
10 4,601,845 (aluminosilicate support with manganese, zinc or magnesium salt), U.S. Pat. 4,626,373 (manganese/ligand), 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).
15
Useful catalysts based on cobalt are described in WO 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]zY2, where L is ah organic ligand molecule
20 containing more than one heteroatom selected from N, P, 0
and S; X is a co-ordinating species; n is preferably 1 or 2; 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'-Bis(salicylidene)ethylenediaminecobalt (II). Other cobalt
25 catalysts described in these applications are based on Co(III) complexes with ammonia and mono-, bi-, tri- and tetradentate ligands such as [Co (NH3) 5OAc]2+ with Cl-, OAc-, PF6-, S04=, and BF4- anions.
30 Certain transition-metal containing bleach catalysts can be prepared in the situ by the reaction of a transition-metal

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salt with a suitable chelating agent, for example, a mixture of manganese sulfate and ethylenediaminedisuccinate. Highly colored transition metal-containing bleach catalysts may be co-processed with zeolites to reduce the color impact. When
5 present, the bleach catalyst is typically incorporated at a level of 0.0001 to 10% by wt., preferably 0.001 to 5% by weight.
Hydrotropes 10
In many liquid and powdered detergent compositions, it is customary to add a hydrotrope to modify product viscosity and prevent phase separation in liquids, and ease dissolution in powders. Two types of hydrotropes are
15 typically used in detergent formulations and are applicable to this invention. The first of these are short-chain functionalized amphiphiles. Examples of short-chain amphiphiles include the alkali metal salts of xylenesulfonic acid, cumenesulfonic acid and octyl sulfonic acid, and the
20 like. In addition, organic solvents and monohydric and polyhydric alcohols with a molecular weight of less than 500, such as, for example, ethanol, isoporopanol, acetone, propylene glycol and glycerol, may also be used as hydrotropes.
25
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
30 methods are described below.

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TEST METHOD AND EXAMPLES
Cleaning, Redeposition, and Graying
5 Cleaning, redeposition, and graying examples were generated under the following conditions: - 17 gallons of water per wash; 35 deg. Celcius wash - cold water rinse; 12 minutes per wash - tumble dried after each wash; 6 pounds of total fabric per wash (comprises an 11" x 11" cloth for
10 visualizing graying and the balance white cotton sheets -the 11" x 11" cloth is a terry towel named TIC-439 and is available from Textile Innovators of Charlotte, North Carolina); any chemicals that may have been on the fabrics were removed by washing 3 times with liquid all™ detergent
15 prior to use; each wash contained 5g of Georgia clay that is sewn into a 2" x 2" cotton fabric pouch (~2" X 2").
To measure the extent of graying, spectrophotometer readings were taken on terry towels after 3 repeat wash /dry cycles
20 with a given detergent using a Hunter Spectrophotometer. The L,a,b scale was used to measure cleaning. Graying results were reported as delta E values (AE) using the following calculation:


25

where,
30 L measures black to white differences, a measures green to red differences

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and, b measures blue to yellow differences.
The larger the (delta E) ΔE value, the more gray is the terry towel. Greater than a 1-2 unit difference can be seen
5 visually.
The pH for formulations 1-6 can range between 7.5 and 9.5 with 8.5 being most preferred. The pH for formulation 7 can range between 10.5 and 12.5 with 11.5 being most preferred.
10
Softening
Fabric was washed with a variety of product, the formulations for which are set forth hereinbelow. The
15 washed fabric was then tested by consumer panels for
perceived-softening. For each of the washes, product was added to a top loading Whirlpool washing machine that contained 17 gallons of water and 6 pounds of fabric. There were several 86% cotton/14% polyester hand towels in each
20 machine along with 100% cotton sheets to bring the total weight of the fabric to 6 pounds. The temperature of the water for the washes was 32 deg. C and the fabrics were washed for 12 minutes. After the rinse cycle, the fabrics were tumble dried. Two washes were done with each product.
25 Each formula tested is benchmarked against two controls -
one using a model detergent (dosed at 130g at the beginning of the wash), and one using a model detergent plus a model liquid fabric softener. For the latter control, 100g of the softening formula is added at the beginning of the rinse
30 cycle. The formulae for the model detergents are shown in the tables below:

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TABLE 1. Model Liquid Detergent

Ingredient Percent in Formula (based on 100% active)
Sodium linear alkylbenzenesulfonate 10.2
Alcohol ethoxylate 9.5
Sodium silicate 3.3
Hydrotrope 0.5
Sodium stearate 0.4
Fluorescent whitening agent 0.1
Water to 100
5
The formula for the model liquid fabric softener is:
TABLE 2. Model Liquid Fabric Softener

Ingredient Percent in Formula (based on 100% active)
Dihydrogenated tallow dimethyl ammonium chloride 3.5
lactic acid 0.015
Calcium chloride 0.015
Water to 100
10
Five panelists scored the softness of the hand towels on a 0-10 scale with 0 being "not soft at all" and 10 being "extremely soft". Duplicate panels were run based on the duplicate, washes and the scores averaged over the two runs.
15 A Softening Parameter (SP) was then calculated using the following formula:
SP = [(St - Sd)/(SC - Sd)] x 100

WO 2005/054419 PCT/EP2004/013161
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Where,St is the softening score for the formula being tested
Sd is the softening score for model detergent, and
Sc is the softening score for the model detergent
5 model liquid fabric softener.
EXAMPLE 1
This example demonstrates that inclusion of a cationic
10 polymer in the detergent is the cause of redeposition of the particulate soil. The following two formulas were tested for graying - formulation 1 did not contain cationic polymer, while formulation 2 did contain cationic polymer.
15 TABLE 3. Formulation 1

Ingredient Percent in Formula(based on 100% active)
linear alkylbenzene sulfonic acid 8.0
coconut oil fatty acid 8.0
alcohol ethoxylate 10.0
alcohol ethoxy sulfate 3.0
sodium hydroxide' 2.5
Triethanolamine 1.0
Sorbitol 5.0
propylene glycol 4.0
Protease; 0.5
sodium borate 3.0
fluorescent whitening agent 0.15
Water to 100

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TABLE 4. Formulation 2

Ingredient Percent in Formula (based on 100% active)
linear alkylbenznene sulfonic acid 8.0
coconut oil fatty acid 8.0
alcohol ethoxylate 10.0
alcohol ethoxy sulfate 3.0
sodium hydroxide 2.5
Triethanolamine 1.0
Sorbitol 5.0
propylene glycol 4.0
Protease 0.5
sodium Borate 3.0
fluorescent whitening agent 0.15
Polymer-LR 4001 0.30
Water to 100
1 A cationic cellulose polymer, available from the Amerchol 5 division Of Dow Chemical, Edison N.J.
ΔE for formulation 1 (no cationic polymer) was less
than 2, while for formulation 2(containing cationic
polymer),ΔE was 12.
10
EXAMPLE 2
Examples 2 and 3' illustrate how the antiredeposition performance of fabric softening compositions comprising
15 cationic polymers can be improved without negatively
impacting their conditioning properties. The following formulas were tested for graying:

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TABLE 5. Formulations 3-5

Formulation Number Description
3 Formulation 2 plus 0.42% PVP K-151
4 Formulation 2 plus 0.4 2% Alcosperse 725 2
5 Formulation 2 plus 0.3% PVP K-15 and 0.12% Alcosperse 725
1Polyvinylpyrrolidone available from International Specialty 5 Chemicals, Wayne, NJ.
2 A polyacrylate available from the Alco division of National Starch and Chemical Co. which is a division of Imperial Chemical Industries, Chattanooga, TN.
10
Graying results are shown in the Table below: TABLE 6. Graying Results

15


Formulation Delta E
3 12
4 12
5 7



20

As can be seen from the tables above, only the combination of PVP and Alcosperse significantly reduces the amount of redeposition of clay to the terry towels.
EXAMPLE 3
This example demonstrates that certain anionic polymers, but not the polymers identified in this application, are prone to deactivating the fabric softening ability of cationic polymers when formulated into liquid detergent products. Formulations 6-9 were prepared and tested for softening, and compared with Formulation 2 as shown in the table below.

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TABLE 7. Formulations 6 - 9
Formulation Number Description Softening Parameter
2 101
6 Formulation 2 plus 0.3% Flexan 130 1 22
7 Formulation 2 plus 0.3% low molecular-weight polystyrene sulfonate 2 10
8 Formulation 2 plus 0.3% Kelzan HP 3 65
9. . ■■ Formulation 2 plus 0.3% Alcosperse 725 4 104
1A high-molecular-weight polystyrene sulfonate ,available from the
National Starch and Chemical Company, which is a division of Imperial
Chemical Industries, Bridgewater, NJ.
5 2Available from the National Starch and Chemical Company, which is a
division of Imperial Chemical Industries, Bridgewater, NJ.
3Xanthan gum, available from CP Kelco, San Diego, CA.
4A polyacrylate available from the Alco division of National Starch and
Chemical Co. which is a division of Imperial Chemical Industries,
10 Chattanooga, TN.
These results demonstrate that ordinarily, cationic polymers will complex with anionic polymers, leading to a significant reduction in their ability to soften. Surprisingly,
15 however, Alcosperse 725, and similar acrylate polymers are able to both give an antiredeposition benefit and retain the softening benefit of the original formulaiton.
The data in Examples 2 and 3 show that using a cationic
20 polymer and anionic surfactant, in combination with PVP and an amphiphilic carboxy substituted polymer, can improve anti-redeposition performance without negatively impacting softening.

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Example 4
The inventive polyvinylpyrrolidone/polyacrylate combination can also be successfully used in the following model
5 formulas:
TABLE 8. Formulation 8

Ingredient Percent in Formula (based on 100% active)
Alcohol ethoxylate 4-25
Total anionic surfactant1 5-50
Propylene glycol 0-10
Sodium hydroxide 0.1-5
Triethanolamine 0-5
Sodium citrate 0-10
Sodium borate 0-10
Softening cationic polymer2 0.1-5
Fluorescent whitening agent 0-1
Antiredeposition polymer 0-2
Protease enzyme 0-1
Lipase enzyme 0-1
Cellulase enzyme 0-1
Perfume 0-2
Preservative 0-1
Soil release polymer 0-2
Water to 100
1e.g. linear alkyl benzene sulfonic acid; neutralized fatty acids (including oleic; coconut; stearic); secondary alkane sulfonate;
10 alcohol ethoxy sulfate.
2 e.g. cationic cellulose; cationic guar.

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TABLE 9: Formulation 9

Ingredient Percent in Formula (based on 100% active)
Ethoxylated nonionics 4.0 - 25.0
Total anionic surfactant1 5-50
Sodium hydroxide 0-10.0
Softening cationic polymer2 0.1 - 5.0
Sodium xylene■ *sulfonate 0-8.0
Sodium silicate 1.0-12.0
Fluorescent whitening agent 0-0.4
Fragrance 0-1.0
Water To 100.
1 e.g linear alkyl benzene sulfonic acid; neutralized fatty acids
(including oleic; coconut; stearic); secondary alkane sulfonate;
5 alcohol ethoxy sulfate.
2e.g. cationic cellulose; cationic guar.
10 15

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- - - 35 (C) ,WO
(Amended 27 Sept 05)
- 58 -CLAIMS
1. A conditioning liquid laundry composition with improved
particulate soil cleaning comprising:
a. at least 5 % of at least one anionic surfactant;
b. 0.01 % to 5 % of at least one anionic amphiphilic
carboxy containing polymer;
c. 0.;05 % to 3 % of polyvinylpyrrolidone polymer; and
10 d. at: least one cationic conditioning polymer
selected from the group consisting of dimethyl diallyl ammonium chloride/acrylamide copolymer, dimethyl diallyl ammonium chloride/acrylic acid/acrylamide tefpolymer, vinylpyrrolidone/methyl vinyl imidazolium
15 chloride copolymer, polydimethyl diallyl ammonium chloride, starch hydroxypropyl trimmonium chloride, polymethacryl amidopropyl trimethyl ammonium chloride, acrylamidopropyl trimmonium chloride/acrylamide copolymer, guar hydroxypropyl trimonium chloride,
20 hydroxyethyl cellulose derivatized with trimethyl
ammonium substituted epoxide, and mixtures thereof. Wherein the anionic amphiphilic caroxy containing polymer has a molecular .weight of greater than 10,000
and further comprises uncharged monomer units and
■ ■ ">■■ - . " ' ■ . >
25 wherein the composition comprises less than 10%
zeolite.
2. The composition according to claim 1, wherein said
amphiphilic carboxy containing polymer is an anionic
3 0 polyacrylate polymer.
. AMENDED SHEET 27/09/2005
Empf .zei t: 27/09/2005 16:53 CMPT .nr .. 170 P.005
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- 59 -
3. The composition according to claim,1, wherein said
cationic polymer has a molecular weight of less than 850,000
daltons.
5
4. The composition according to claim 1, wherein said
anionic surfactant is selected from the group consisting of alkali and alkaline earth metal salts of fatty carboxylic acids, alkali and alkaline earth metal salts of alkylbenzene
10 sulfonates, and mixtures thereof.
5. The composition according to claim.4, wherein the
composition comprises at least 4% of an alkali or alkaline
earth metal salt of one or more fatty carboxylic acids.
15
6. The composition according to claim 1, wherein said cationic polymer and said anionic surfactant are present at a ratio of less than 1:4.
20 7. The composition according to claim 1, wherein the composition is a detergent or fabric softener.
8. The composition according to claim 1 in which
precipitation is limited to less than 10% of the
25 composition.
9. A method for conditioning and cleaning textiles
comprising, in no particular order:
30 a. providing a laundry detergent or fabric softener composition according to claim 1;

AMENDED SHEET 27/09/2005
Empf. zeit:27/09/2005. 16:54 CMPT.nr..170 P.005

Printed: 06/10/2005 CLMSPAMD EP 04803191
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C6S55 (C) WO
(Amended 27 Sept 05)
- 60 -
b. contacting one or more articles, with the
composition at one or more points during the
laundering process; and
c. mechanically tumble-drying or allowing the articles
5 to dry.
10. The method according to claim 9, wherein said cationic. polymer is- selected from the group consisting of dimethyl diallyl ammonium chloride/acrylamide copolymer, dimethyl'
10 diallyl ammonium chloride/acrylic acid/acrylamide
terpolymer, vinylpyrxolidone/methyl vinyl imidazolium chloride copolymer, polydimethyl diallyl ammonium chloride, starch hydroxypropyl trimmonium chloride, polymethacryl amidopropyl trimethyl ammonium chloride, acrylamidopropyl
15 trimmonium chloride/acrylamide copolymer, guar hydroxypropyl
trimonium chloride, hydroxyethyl cellulose derivatized with
trimethyl ammonium substituted epoxide, and mixtures
thereof.
20 11. The method according to claim 9, wherein said cationic
polymer has a molecular weight of leas than ,850,000
daltons,
12. The method according to claim 9, wherein said anionic
25 surfactant is selected from the group-consisting of alkali and alkaline earth metal salts of fatty carboxylic acids, . alkali and alkaline earth metal salt3 of alkylbenzene sulfonates, and mixtures thereof.
AMENDED SHEET 27/09/2005
Empf.zeit:27/09/2005 16:54 CMPT.nr..170 P.006

Printed: 06/10/2005 CLMSPAMD EP 04803191
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C6S65 (C) WO .
(Amended 27 Sept 05)
- 61 -

13. -The; method according to claim n, wherein the composition comprises at least 4% of an alkali or alkaline
earth metal salt of one or more fatty carboxylic acids.
5 14. The method according to claim 9, wherein said cationic polymer and said anionic surfactant are present at a ratio of less than 1:4.

10


15. The method according to claim 9, wherein the composition is a detergent or fabric softener.
16. A method of conferring a softening parameter of greater than 70 to textiles comprising the steps of:-
20
25
30
15
a. providing a laundry detergent or fabric softener composition according to anyone of claims 1-8;
b. contacting one or more articles with the composition at one or more points during the -laundering process; and
c. mechanically tumble - drying or allowing the articles to dry.
17. A method of conferring a delta E value of less than 12 to textiles comprising the steps of:-
a. providing a laundry detergent or fabric softener composition according to anyone of claims 1-8;
b. contacting one or more articles with the
composition at one or more points during the laundering process; and



AMENDED SHEET 27/09/2005

Empf.zeit:27/09/2005 16:54 CMPT.nr..170 P.007



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C6665 .(C) WO
(Amended 27 Sept 05).
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c. mechanically tumble – drying or allowing the articles to dry.
18. The method according to claim 1, wherein said amphilic
5 carboxy containing polymer is an anionic polyacrylate polymer.
Dated this 24th day of May 2006

Documents:

600-mumnp-2006 form 2(granted) - (10-3-2008).doc

600-mumnp-2006 claims (granted) - (10-3-2008).doc

600-mumnp-2006-cancelled pages(10-03-2008).pdf

600-mumnp-2006-claims(granted)-(10-03-2008).pdf

600-mumnp-2006-claims.doc

600-mumnp-2006-claims.pdf

600-mumnp-2006-correspondenc 1(04-09-2006).pdf

600-mumnp-2006-correspondenc 2(27-03-2008).pdf

600-mumnp-2006-correspondenc(ipo)-(09-05-2008).pdf

600-MUMNP-2006-CORRESPONDENCE(8-2-2012).pdf

600-mumnp-2006-correspondence-received.pdf

600-mumnp-2006-description (complete).pdf

600-mumnp-2006-form 1(10-03-2008).pdf

600-mumnp-2006-form 1(24-05-2006).pdf

600-mumnp-2006-form 13(03-10-2007).pdf

600-mumnp-2006-form 18(04-09-2006).pdf

600-mumnp-2006-form 2(granted)-(10-03-2008).pdf

600-mumnp-2006-form 3(24-05-2006).pdf

600-mumnp-2006-form 5(24-05-2006).pdf

600-mumnp-2006-form-1.pdf

600-mumnp-2006-form-2.doc

600-mumnp-2006-form-2.pdf

600-mumnp-2006-form-3.pdf

600-mumnp-2006-form-5.pdf

600-mumnp-2006-form-assignment.pdf

600-mumnp-2006-form-pct-ipea-409(24-05-2006).pdf

600-mumnp-2006-form-pct-ipea-409.pdf

600-mumnp-2006-form-pct-ipea-416.pdf

600-mumnp-2006-form-pct-isa-210(24-05-2006).pdf

600-mumnp-2006-other(24-09-2007).pdf

600-mumnp-2006-pct-search report.pdf


Patent Number 219601
Indian Patent Application Number 600/MUMNP/2006
PG Journal Number 43/2008
Publication Date 24-Oct-2008
Grant Date 09-May-2008
Date of Filing 24-May-2006
Name of Patentee HINDUSTAN UNILEVER LIMITED
Applicant Address HINDUSTAN LEVER HOUSE 165/166, BACKBAY RECLAMATION, MUMBAI 400 020
Inventors:
# Inventor's Name Inventor's Address
1 BINDER DAVID ALAN 69 SOUTH LESWING AVENUE, SADDLE BROOK, NEW JERSEY 07663, USA
2 MURPHY Dennis Stephen Unilever Home & Personal Care USA, 75 Merritt Boulevard, Trumbull, Connecticut 06611, United States of America
3 ORCHOWSKI Michael 21 S.Strawberry Street, #3D, Philadelphia, Pennsylvania 19106, United States of America
PCT International Classification Number C11D3/37,3/22
PCT International Application Number PCT/EP2004/013161
PCT International Filing date 2004-11-18
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 10/727,234 2003-12-03 U.S.A.
2 10/727234 2003-12-03 U.S.A.