Title of Invention

"A LAUNDRY DETERGENT BAR COMPOSITION"

Abstract The present invention is directed to a laundry detergent bar composition comprising from about 0.1% to about 20% peroxygen bleach; and a perfume, wherein the perfume comprises less than about 1% of cinnamic aldehyde, by weight of the perfume. The bar composition is substantially free of malodor.
Full Text FIELD
The present invention relates to a laundry bar composition comprising a bleach containing laundry detergent bar composition having perfume.
BACKGROUND
In societies where mechanical washing machines are hot common, laundry detergent bars comprising synthetic organic surfactants and detergency phosphate builders are used in the laundering of clothes. Technical developments in the field of laundry detergent bars have concerned formulating bars which are effective in cleaning clothes; which have acceptable sudsing characteristics in warm and cool water and in hard and soft water; which have acceptable in-use wear rates, hardness, durability, and feel; which have low smear; and which have a pleasing odor and appearance. Methods for making laundry detergent bars are also well known in the art. Prior art disclosing laundry bars and methods for making laundry bars include: U.S. Pat. 3,178,370, Okenfuss, issued April 13, 1965; and Philippine Pat. 13,778, Anderson, issued September 23, 1980.
Laundry bar compositions which comprise bleach, especially peroxygen bleach, aid in the removal of different kinds of stains, as well as aid in whitening the appearance of the fabric. In addition, laundry bar compositions contain perfume. Consumers prefer perfume in the composition which is pleasant to smell. There are many perfumes known in the art of detergent compositions; some perfumes are made from a mixture of perfume raw materials.
Bar compositions containing peroxygen bleach in combination with a perfume which contain a high level of cinnamic aldehyde give off a malodor. Although not wanting to be limited by theory, the cinnamic aldehyde material is converted to benzaldehyde during the processing of the bar ingredients when forming a laundry bar. The resultant benzaldehyde is the cause of the malodor, and the cinnamic aldehyde raw material is believed to be the precursor of the malodor. Therefore, it has now been found that peroxygen bleach containing •
laundry bars comprising a perfume having low levels of cinnamic are substantially free of malodor.
None of the existing art provides all of the advantages and benefits of the present invention.
STATEMENT OF THE INVENTION
According to the present invention there is provided a laundry detergent bar composition comprising:
(a) from 0.1% to 20% peroxygen bleach; and
(b) from 0.001% to 1.0% of a perfume, wherein the perfume
comprises less than 1% of cinnamic aldehyde, by weight of the
perfume;
(c) balance being conventional adjunct ingredients.
SUMMARY
The present invention is directed to a laundry detergent bar composition comprising from about 0.1% to about 20% peroxygen bleach; and a perfume, wherein the perfume comprises less than about 1% of cinnamic aldehyde, by weight of the perfume.
These and other features, aspects, and advantages of the present invention will become evident to those skilled in the art from a reading of the present disclosure.
DETAILED DESCRIPTION
While the specification concludes with claims particularly pointing out and distinctly claiming the invention, it is believed that the present invention will be better understood from the following description.
All percentages are by weight of total composition unless specifically stated otherwise.
All ratios are weight ratios unless specifically stated otherwise.
As used herein, "comprising" means that other steps and other ingredients which do not affect the end result can be added. This term encbmpasses the terms "consisting of and "consisting essentially of".
All cited references are incorporated herein by reference in their entireties. Citation of any reference is not an admission regarding any determination as to its availability as prior art to the claimed invention. A. Peroxygen Bleach
The composition of the present invention comprises from about 0.1% to about 20% peroxygen bleach, by weight of the total bar composition. Preferably, the bar composition comprises from about 1% to about 10%, more preferably, from about 2% to about 5% peroxygen bleach, by weight of the total bar composition.
The peroxygen bleach of the present invention are those peroxygen bleaching compounds which are capable of yielding hydrogen peroxide in an
aqueous solution, These compounds are well Known in the art and include hydrogen peroxide and the alkali metal peroxides, organic peroxide bleaching compounds such as urea peroxide, and inorganic persalt bleaching compounds, such as the alkali metal perborates, percarbonates, perphosphates, and the like. Mixtures of two or more such bleaching compounds can also be used, if desired. Preferred peroxygen bleaches include perborate, percarbonate, persulfate, peroxide, peroxohydrates, perphosphates, and mixtures thereof.
Specifically referred peroxygen pleaching compounds to be used in the present invention include sodium perborate, commercially available in the form of mono- and telra-hydrates, sodium carbonate peroxyhydrate, sodium pyrophosphate peroxyhydrate, urea peroxyhydrats, and sodium peroxide, Particular preferred are sodium perborate tetrahydrate, and especially, sodium perborate monohydrate. Sodium perborate monohydrate is especially preferred because it is very stable during storage and yet still dissolves very quickly in the bleaching solution.
Persulfate bleach (e.g., OXONE, manufactured commercially by DuPont) can also be used,
Other peroxygen bleach agents can also be used such as a percarbonate bleach. Such percarbonate bleach comprises dry particles having an average particle size in the range from about 500 micrometers to about 1,000 micrometers, not more than about 10% by weight of said particles being smaller than about 200 micrometers and not more than about 10% by weight of said particles being larger than about 1,250 micrometers, Optionally, the percarbonate can be coated with silicate, borate or water-soluble surfactants. Percarbonate is available from various commercial sources such as FMC, Solvay and Tokai Denka, B. Perfume
Cinnamic aldehyde is a common raw material for perfumes and therefore many perfumes, especially those used in laundry detergent compositions, contain cinnamic aldehyde. It has now been found that perfumes which contain low levels (if any) of cinnamic aldehyde in bleach bar compositions do not give off malodor after the bar has been processed.
The composition of the present invention contains a perfume, wherein the perfume contains less than about 1.0% of cinnamic aldehyde. Preferably, the perfume contains from about 0.0% to about 1.0% of cinnamic aldehyde, More

preferably, the perfume contains less than about 0.2% of cinnamic aldehyde, even more preferably lass than about 0.04%, by weight of the perfume. It is preferable that the perfume is substantially free of cinnamic aldehyde.
The perfume may contain only cinnamic aldehyde, or may contain other perfume raw materials in addition to cinnamic aldehyde,
Cinnamic aldehyde, or cinnamaldehyde is also denoted by the following structure below:
(Formula Removed)
Although not wanting to be limited by theory, as discussed in the background section, it is believed that the cinnamic aldehyde material is converted to benzaldehyde during the processing of the bar ingredients when forming a laundry bar. In the presence of peroxygen bleach under alkaline • conditions, cinnamic aldehyde is believed to be oxidized into epoxide and then converted to benzaldehyde. The resultant benzaldehyde is believed to be the cause of the malodor, and the cinnamic aldehyde raw material is believed to be the precursor of the malodor. See also, Wright and Abott, "The Oxidation of Cinnamaldehyde with Alkaline Hydrogen Peroxide", International Journal of Chemical Kinetics, Vol. 25, 901-911 (1993); Guthrie et aj., "The Retroaldol Reaction of", Can. J. Cham. 62,1441 (1984).
The compositions of the present invention may contain a total amount of perfume (including the cinnamic aldehyde), by weight of the composition, of from about 0,001% to about 1%, preferably from about 0.05% to about 0.5%. C. Adjunct Ingredients
The composition of the present invention preferably comprises from about 0.5% to about 60% anionic surfactant by weight of the total bar composition. Preferably, the bar composition comprises from about 10% to about 50%, more preferably, from about 15% to about 30% anionic surfactant, by weight of the total bar composition.
Anionic surfactants are preferably selected from the group consisting of alkyl sutfate, linear alkyi benzene sulfonate, and mixtures thereof.
Anionic synthetic detergent surfactants which are suitable for use herein include the water-soluble salts, preferably the alkali metal, ammonium and alkylolammonium salts of organic sulfuric reaction products having in their molecular structure an alKyl group containing from about 10 to about 20 carbon atoms and a sulfonic acid or sulfuric acid ester group. (Included in the tarm "alkyl" is the alkyl portion of acyl groups,) Examples of this group of synthetic surfactants are the sodium and potassium alkyl sulfates, especially those obtained by sulfating the higher alcohols (Cg-ia carbon atoms) such as those produced by reducing the glycerides of tallow or coconut oil; and the sodium and potassium alkylbenzene sulfonates in which the alkyl group contains from about 9 to about 15 carbon atoms, in straight chain or branched chain configuration, e.g., those of the type described in U.S. Patents 2,220,099 and 2,477,383. Especially valuable are linear straight chain alkylbenzene suffonates in which the average number of carbon atoms in the alkyl group is from about 11 to 13, abbreviated as C-ji_i3 LAS. The alkali metal salts, particularly the sodium salts of these surfactants are preferred. Alkylbenzene sulfonates and processes for making them are disclosed in U.S. Patent Nos. 2,220,099 and 2,477,383.
Mixtures of the above types of anionic surfactants are preferred, Specifically, preferred anionic surfactants are CIQ_IB linear alkyi benzene suifonates, C-io-18 a'M sulfates, and mixtures thereof. One preferred composition comprises a mixture of LAS;A!Kyl sulfate in a ratio of from about 10:90 to about 50:50, preferably from abcut 20:80 to about 40:60.
The composition of the present invention preferably _comprises at least about 3% phosphate builder, by weight of the total bar composition. Preferably, the bar composition comprises from about 5% to about 50%, more preferably, from about 16% to about 35% phosphate builder, by weight of the total bar composition. The phosphate builder is selected from the group consisting of phosphates, pyrophosphates, orthophosphates, tripolyphosphates, higher polyphosphates, and mixtures thereof.
The phosphate builders are preferably water-soluble alkali-metal salts of phosphate, including pyrophosphates, orthophosphates, tripolyphosphates, higher polyphosphates, and mixtures thereof. Preferred phosphate builders are a water-soluble alkali-metai salt of tripolyphosphate, and a mixture of

tripolyphosphate and pyrophosphate, Specific preferred examples of phosphate builders include sodium tripolyphosphates (STPP) and tatra sodium pyrophosphates (TSPP), and mixtures thereof,
The detergent bars of the present invention can contain optional surfactants in addition to the anionic synthetic detergent surfactants described above. Such optional surfactants, if present, can be included at levels up to a total of about 10%, preferably about 0.5-3%, by weight of the total bar composition.
A typical listing of the classes and species of optional surfactants, (e.g. nonionic, zwitterionic and ampnoteric surfactants) optional alkaline builders such as sodium carbonate trisodium phosphate, etc. and other ingredients useful herein appears in U.S. Pat. No. 3,664,961, issued to Morris on May 23, 1972, and EP 550,652, published on April 16, 1992. Cationic surfactants, are another optional surfactant,
Amine Oxides are excellent cosurfactants that may be used in conjunction with the present invention. Preferred types are C^-C-ia amine oxides, preferably C^. If included, the level of amine oxide in the final bar composition is from about 1% to about 10%, preferably, from about 2% to about 5%.
Other synthetic anionic surfactants suitable for use herein as additional optional surfactants are alkyl ethoxylate sulfates, the sodium alkyl glyceryl ether suifonates, especially those ethers of higher alcohols derived from tallow and coconut oil; sodium coconut oil fatty acid monoglyceride suifonates and sulfates. Preparation of alkyl glyceryl ether suifonates are described in detail in U.S. Pat. 3,024,273, Whyte et al,, issued March 6,1962.
In addition, optional synthetic anionic surfactants include the water-soluble salts of esters of alpha-sulfonated fatty acids containing from about 6 to 20 carbon atoms in the fatty acid group and from about 1 to 10 carbon atoms in the ester group; water-soluble salts of 2-acy|oxyalkane-1-sulfanic acids containing from about 2 to 9 carbon atoms in the acyl group and from about 9 to about 23 carbon atoms in the alkane moiety; water-soluble salts of olefm and paraffin suifonates containing from about 12 to 20 carbon atoms; and beta-alkyloxy alkane suifonates containing from about 1 to 3 carbon atoms in the alkyl group and from about 8 to 20 carbon atoms in the alkane moiety.
In addition, a hydrotrope, or mixture of hydrotropes, may be present in the laundry detergent bar. Preferred hydrotropes include the alkali metal, preferably
sodium, salts of toluene sulfonate, xyiene sulfonate, cumene sulfonate, sulfosuccinate, and mixtures thereof, Preferably, the hydrotrope is added to the linear alkyl benzene sulfonic acid prior to its neutralization. The hydrotrope, if present, will preferably be present at from about 0,5% to about 5% of the laundry detergent bar.
The builder can optionally contain in addition to the phosphate builder, a non-phosphate detergent builder. Specific examples of non-phosphate, inorganic detergency builders include water-soluble inorganic carbonate and bicarbonate salts. The alkali metal (e.g., sodium and potassium) carbonates and bicarbonates are particularly useful herein, Other specifically preferred examples of builders include potycarboxylates, layered silicates and zeolites.
Sodium carbonate, another optional ingredient, is particularly preferred as a neutralizing inorganic salt for an acid precursor of an anionic surfactant used in such compositions, such as the alkyl ether sulfuric acid and alkylbenzene sulfonic acid. Co-polymers of acrylic acid and maleic acid are preferred in the subject compositions as auxiliary builders.
Binding agents is particularly preferred to give the bar composition good binding and a good rate of hardening during the manufacture of the bar compositions. Preferably the addition of magnesium sulfate to the bar composition gives such benefits, When used, the bar composition comprises from about 1.5% to about 10%, more preferably, from about 2% to about 5% magnesium sulfate, by weight of the final bar composition. When magnesium sutfate is used, it must be added in the manufacturing process after the addition of both the calcium salt and siliceous material.
Soil suspending agents can be used, Soil suspending agents can also include water-soluble salts of carboxymethylcallulose and carboxyhydroxymethylcellulose, A preferred soil suspending agent is an acryiic/maleic copolymer, commercially available as Sokolan®, from BASF Corp, Other soil suspending agents include polyethylene giycols having a molecular weight of about 400 to 10,000, and ethoxylated mono- and polyamines, and quaternary salts thereof. If included, it can be at levels up to about 5%, preferably about 0.1-1%,
A preferred component of the present invention is a chelating agent. Such chelating agents are able to sequester and chelate alkali cations (such as sodium, lithium and potassium), alkali metal earth cations (such as magnesium

and calcium), and most importantly, heavy metal cations such as iron, manganese, zinc and aluminum. Preferred cations include sodium, magne'sium, zinc, and mixtures thereof,
The chelating agent is preferably selected from a group consisting of amino carboxylates, amino phosphonates, polyfunctionally-substituted aromatic chelating agents and mixtures thereof
One preferred chelating agent is a phosphonate chelating agent, particularly one selected from the group consisting of diethylenetriamine penta(methylene phosphonic acid), ethyjene diamine tetra(methylene phosphonic acid), and mixtures and salts and complexes thereof, and an acetate chelating agent, particularly one selected from the group consisting of diethylenetriamine penta(acetic acid), ethylene diamine tetra(acetic acid), and mixtures and salts and complexes thereof. The liquid form of the phosphonate chelating agent is particularly preferred. Particularly preferred are sodium, zinc, magnesium, and aluminum salts and complexes of diethylenetriamine penta(methylene phosphonate) diethylenetriamine penta (acetate), and mixtures thereof,
Preferably such salts or complexes have a molar ratio of metal ion to chelating agent molecule of at least 1:1, preferably at least 2:1. The detergent chelating agent can be included in the laundry bar at a level up to about 5%, preferably from about 0.1% to about 5%, more preferably from about 0,2% to about 2%, most preferably from about 0.5% to about 1.0%.
Another optional component of the laundry bar is fatty alcohol having an alkyl chain of 8 to 22 carbon atoms, more preferably from 12 to 18 carbon atoms. A preferred fatty alcohol has an alKyl chain predominantly containing from 16 to 18 carbon atoms, so-called "high-cut fatty alcohol," which can exhibit less base odor of fatty alcohol relative to broad cut fatty alcohols. Typically fatty alcohol, if any, is present in the laundry bar at up to a level of 10%, more preferably from about 0.75% to about 6%, most preferably from about 2% to about 5%, The fatty alcohol is generally added to a laundry bar as free fatty alcohol. However, low levels of fatty alcohol can be introduced into the bars as impurities or as unreacted starting material. For example, laundry bars based on coconut fatty alkyl sulfate can contain, as unreacted starting material, from 0.1% to 3.5%, more typically from 2% to 3%, by weight of free coconut fatty afcohol on a coconut fatty alkyl sulfate basis,
Another optional component in the laundry bar is a dye transfer inhibiting (DTI) ingredient to prevent diminishing of color fidelity and intensity in fabrics. A preferred DTI ingredient can include polymeric DTI materials capable of binding fugitive dyes to prevent them from depositing on the fabrics, and decolorization DTI materials capable of decolorizing the fugitives dye by oxidation. An example of a decolorization DTI is hydrogen peroxide or a source of hydrogen peroxide, such as percarbonate or perborate. Non-limiting examples of polymeric DTI materials include polyvinylpyrridine N-oxide, polyvinylpyrrolidone (PVP), PVP-polyvinylimidazole copolymer, and mixtures thereof. Copolymers of N-vinylpyrrolidone and N-vinylimidazole polymers (referred to as "PVPI") are also preferred for use herein, The amount of DTI included in the subject compositions, if any, is about 0,05-5%, preferably about 0,2-2%.
Another optional component in the laundry bar is a fabric softener component. Such materials can be used, if any, at levels of about 0,1% to 5%, more preferably from 0.3% to 3%, and can include: amines of the formula R4R5R6N, wherein R4 is Cs to C22 hydrocarbyl, R5 and Re are independently C1 to GIO hydrocarbyi. One preferred amine is ditqllowmethyl amine; complexes of such amines with fatty acid' of the formula R7COOH, wherein R7 is Cg to C22 hydrocarbyl, as disclosed in EP No, 0,133,804; complexes of such amines with phosphate esters of the formula RaO-P(0)(OH)-OR9 and HO-P(0)(OH)-QR9, wherein R8 and Rg are independently C-| to C20 alky) of alkyl ethoxylate of the formula -alkyl-(OCH2CH2); cyclic amines such as imidazolines of the general formula 1 -(higher alkyl) amido (lower alkyl)-2*(higher alkyOimidazoline, where higher alkyl is from 12 to 22 carbons and lower alkyl is from 1 to 4 carbons, such as described in UK Patent Application GB 2,173,827; and quaternary ammonium compounds of the formula RioRllRl2Rl3N"l"X", wherein RIO is alkyl having 8 to 20 carbons, RI 1 is alkyl having 1 to 10 carbons, R12 and R13 are alkyi having 1 to 4 carbons, preferably methyl, and X is an anion, preferably Cl* or Br, such as C-J2-13 alkyl trimethyl ammonium chloride.
Sodium sulfate is a well-known filler that is compatible with the compositions of this invention. It can be a by-product of the surfactant sulfation and sulfonation processes, or it can be added separately. Calcium carbonate (also known as Calcarb) is also a well known and often used filler component of laundry bars, Filler materials are typically used, if included, at levels up to 40%, preferably from about 5% to about 25%,

Titanium dioxide is another optional component. It can be a preferred ingredient for aesthetics of the bar composition, e.g, whiteness.
Optical brighteners are also optional ingredients in laundry bars of the present invention, Preferred optical brighteners are diamino stilbene, distyrifbiphenyl-type optical brighteners. Preferred as examples of such brighteners are 4,4'-bis{[4-anilino-6-b!s(2-hydoxyethyl) amino-l.a.S-trizin^-yl]amino}stilbene-2,2'-disu|fonic acid disodium salt, 4-4'-bis(2-sulfostyryl) bipheny! and 4,4l-bis[(4'anilino-6-morpholino-1l3l5-triazin-2-yl) amino]stiibene-2,2'-disu!fonic acid disodtum salt. Such optical brighteners, or mixtures thereof, csn be used at levels in the bar of from about 0,05% • 1.0%.
Dyes, pigments, and germicides can also be added to the bar composition. If included, they are typically at levels up to about 0.5%,
Another optional component of the subject invention composition is a photobleach material, particularly phthaiocyanine photobleaches which are described in U.S. Patent 4,033,718 issued July 5, 1977, incorporated herein by reference, Preferred photobleaches are metal phthaiocyanine compounds, the metal preferably having a valance of +2 or +3; zinc and aluminum are preferred metals, Such photobleaches are available, for example, under the tradename TINOLUS or as zinc phthaiocyanine sulfonate. The photobleach components, if included, are typically in the subject compositions at levels up to about 0.02%, preferably from about 0.001% to about 0,015%, more preferably from about 0.002% to about 0.01%,
Another useful optional component of the subject compositions are detergent enzymes, Particularly preferred are lipase, protease, amylase, and mixtures thereof. Enzymes, if included, are typically at levels up to about 5%, preferably about 0.05-3%. Processing
The detergent laundry bars of the present invention can be processed in conventional soap or detergent bar making equipment with some or all of the following key equipment: blender/mixer, mill or refining plodder, two-stage vacuum plodder, logo printer/cutter, cooling tunnel and wrapper.
In a typical process the raw materials are mixed in the blender. Alkyl benzene sulfonic acid is reacted with alkaline inorganic salts to complete neutralization, the amount of alkaline inorganic salt being at least sufficient to completely neutralize the acid. Then other optional surfactants fallowed by any

additional optional components such as chelating agents are added, The perfume is added near the end of the mixing process. The mixing can take from one minute to one hour, with the usual mixing time being from about two to twenty minutes. The blender mix is charged to a surge tank. The product is conveyed from the surge tank to the mill or refining plodder via a multi-worm conveyor.
After milling or preliminary plodding, the product is then conveyed to a two-stage vacuum plodder, operating at high vacuum, e.g. 600 to 740 mm of mercury vacuum, so that entrapped air/gas is removed. The product is extruded and cut to the desired bar length, and printed with the product brand name. The printed bar is preferably cooled, for example in a cooling tunnel, before it is wrapped, cased, and sent to storage.
EXAMPLES 1-3
The following examples further describe and demonstrate the preferred embodiments within the scope of the present invention. The examples are given solely for the purpose of illustration, and are not to be construed as limitations of the present invention since many variations thereof are possible without departingfrom its spirit and scope,
(Table Removed)
*Perfume is a perfume containing more than one perfume raw material. **Perfume comprises 0.2% cinnamic aldehyde, ***Perfume comprises 0.04% cinnamic aldehyde. "***Perfume comprises 0,0% cinnamic aldehyde.
It is understood that the examples and embodiments described herein are for illustrative purposes only and that various modifications or changes in light thereof will be suggested to one skilled in the art without departing from the scope of the present invention.



WE CLAIM;-
1. A laundry detergent bar composition comprising:
(a) from 0.1% to 20% peroxygen bleach; and
(b) from 0.001% to 1.0% of a perfume, wherein the perfume
comprises less than 1% of cinnamic aldehyde, by weight of
the perfume;
(c) balance being conventional adjunct ingredients.

2. The laundry detergent bar composition as claimed in claim 1,
wherein the perfume comprises from upto 0.1% of a cinnamic
aldehyde, by weight of the perfume.
3. The laundry detergent bar composition as claimed in claim 1,
wherein the peroxygen bleach is selected from the group
consisting of perborate, percarbonate, persulfate, peroxide,
peroxohydrates, perphosphates, and mixtures thereof.
4. The laundry detergent bar composition as claimed in claim 1,
wherein the adjunct ingredients comprises:

(a) from 0.5% to 60% anionic surfactant;
(b) at least 3% phosphate builder.
5. The laundry detergent bar composition as claimed in claim 4,
wherein the anionic surfactant is selected from the group
consisting of linear alkyl benzene sulfonate, alkyl sulfate,
alkyl ethoxylate sulfate, and mixtures thereof.

6. The laundry detergent bar composition as claimed in claim 5,
wherein the phosphate builder is selected from the group
consisting of phosphates, pyrophosphates, orthophosphates,
tripolyphosphates, higher polyphosphates, and mixtures thereof.
7. A laundry detergent bar as claimed in claim 1 wherein said
perfume is present in an amount of 0.001 to 1.0% and the perfume
comprises upto 0.2% by weight of cinnamic anhydride based on the
weight of perfume and wherein the adjunct ingredients comprise
from 0.5% to 60% anionic surfactant selected from linear alkyl
benzene sulfonate, alkyl sulfate, alkyl ethoxylate sulfate or
mixtures thereof and from 5% to 50% phosphate builder selected
from phosphates, pyrophosphates, orthophosphates,
tripolyphosphates, higher phosphates and mixtures thereof.
8. The laundry bar as claimed in claim 7, comprising from 16%
to 35% phosphate builder.
9. A laundry detergent bar substantially as hereinbefore
described in any of the examples.

Documents:

3088-del-1998-abstract.pdf

3088-del-1998-assignment.pdf

3088-del-1998-claims.pdf

3088-del-1998-correspondence-others.pdf

3088-del-1998-correspondence-po.pdf

3088-del-1998-description (complete).pdf

3088-del-1998-form-1.pdf

3088-del-1998-form-19.pdf

3088-del-1998-form-2.pdf

3088-del-1998-form-3.pdf

3088-del-1998-form-4.pdf

3088-del-1998-form-6.pdf

3088-del-1998-gpa.pdf

3088-del-1998-petition-138.pdf


Patent Number 215479
Indian Patent Application Number 3088/DEL/1998
PG Journal Number 11/2008
Publication Date 14-Mar-2008
Grant Date 27-Feb-2008
Date of Filing 21-Oct-1998
Name of Patentee THE PROCTER & GAMBLE COMPANY
Applicant Address ONE PROCTER AND GAMBLE PLAZA, CINCINNATI, OHIO 45202, USA
Inventors:
# Inventor's Name Inventor's Address
1 NAKANO, KIMIHIRO 2-30-407, NISHIMAIKO 6-CHOME, TARUMI-KOBE 655, JAPAN
2 TOYOTA, JUNICHI 2-16-414, IRIE-DORI 2-CHOME, HYOGO-KU KU KOBE 652 JAPAN
PCT International Classification Number C11D 1/02
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 97/19193 1997-10-23 U.S.A.