Title of Invention

POWDERED HAIR COLOUR COMPOSITION FOR SIMULTANEOUSLY LIGHTENING AND PERMANENTLY COLOURING HAIR AND METHOD OF PREPARATION

Abstract The present invention discloses a one step method and a composition of powder hair colour which can simultaneously lighten the hair up to seven levels and imparting colour to hair with oxidation hair dyes. The composition comprises combination of powder oxidizing agents, ammonium salts, thickening agents, surfactants, conditioning agents and oxidative dyes. The composition of the present invention is compatible with oxidation dyes and dye precursor systems and result in improved lift and lightening for blond shades, excellent dye deposition and colour with improved grey coverage.
Full Text FORM 2
THE PATENT ACT 1970
(39 of 1970)
AND
The Patents Rules, 2003
COMPLETE SPECIFICATION
(See section 10 and rulel3)
1. Title of the invention:
"POWDERED HAIR COLOUR COMPOSITION FOR SIMULTANEOUSLY LIGHTENING AND PERMANENTLY COLOURING HAIR AND METHOD OF PREPARATION"


2. Applicant (s)
(a) Name: Godrej Consumer Products Limited
(b) Nationality: Indian company incorporated under the Indian Companies
Act, 1956
(c) Address: Pirojshanagar, Eastern Express Highway, Vikroli (East),
Mumbai - 400079, Maharashtra, India.
3. Preamble to the description
The following specification particularly describes the invention and the manner in which it is to be performed.


Technical field:
The present invention relates to one step method and compositions of powder hair colour which can simultaneously lighten the hair up to seven levels and imparting colour to hair with oxidation hair dyes. The invention further relates to process for preparation of powder hair colour composition.
Back ground and prior art:
Natural hair colour is derived from melanin granules embedded throughout the cortex of hair fibers. Two general classes of such pigments have been identified as eumelanins (brownish black) and pheomelanins (reddish orange). The combination ratio and concentration of these two types of pigments impart to the hair its characteristic natural gradations of color. Dark hair has a higher concentration of the eumelanins, while red hair has a predominance of the pheomelanins. Light blond hair has reduced amounts of both.
Hair bleaching is a chemical process by which a bleaching agent gradually destroys the melanin granules in the cortex, resulting in a lighter color of the hair. When an ammonical solution of hydrogen peroxide diffuses through the cuticle and enters the cortex, it starts to attack and disperse the melanin granules. The different types of melanin granules are not destroyed at the same rate. Generally, the eumelanins are easier to breakdown than the pheomelanins. Because of this property, dark hair, when bleached, experiences a visual enhancement of the red pigments during the bleaching process, and the casting of a reddish orange or "brassy" tone to the resultant bleached hair. In order to neutralize this warmth, hair colorants are applied during or after a bleaching treatment.
Hair bleaches may be classified into two categories based on their chemical composition and their strength.Category-1 bleaches are liquid- or cream-based compositions utilizing alkaline hydrogen peroxide solutions as the main oxygen-generating agent to oxidize and bleach hair melanin, usually in conjunction with a hair coloring process. Just before use, the peroxide is mixed with an alkalizing agent such as ammonia, and the resulting liquid

or cream is applied to hair for 30 to 60 minutes. Such compositions may lighten the hair by as much as four levels at the most, depending on the concentration of hydrogen peroxide used.
Category-2 bleaches can deliver over seven levels of lift, something which cannot be attained with category-1 bleaches. Bleaches are generally powder compositions, some of them are in cream form, which are based on persulfate salts (ammonium, potassium, sodium) as auxiliary or booster supplies of active oxygen, and silicate and/or carbonate salts as sources of alkalinity. Again, just before use, they are mixed with hydrogen peroxide solutions to form a workable cream that can be applied to the hair.
U.S.Pat. No. 5,688,291 teaches a single-step method and compositions for simultaneously lightening and coloring hair up to seven levels, utilizing alkaline peroxide solutions. This patent discloses a single-step composition, which utilized disperse dye components azo and anthraquinone compounds in category-2 bleach, to simultaneously lighten the hair up to seven levels and deposit different colors.
Japanese Patent Publication No. 08175940, published Jul. 9, 1997, teaches the combination of a xanthene-based hair dyeing agent, a peroxide based developer, and a persulfate based bleaching compound.
U.S. Pat. No. 718,9265, and 6.44,0177, teaches us simultaneously lightening and colouring hair utilizing bleach-stable derivatives of azo, triaryl methane thiazine, or nitro dyes.
EP 1 106 166 describes hair dye compositions comprising ammonia, carbonate (other than ammonia salt), transition metal salt and chelating agent which do not give off an irritating odour, have low skin irritation and can change the hair colour into a lighter tone in a short time.

WOOl/28508 describes hair colouring formulations comprising oxidising agents and ammonia carbonate or carbamate which deliver improved bleaching and colouring with reduced odour and hair damage without the need for buffering agents, pH modifiers or hair swelling agents.
JP11343219 discloses hair bleaching compositions comprising ammonia, or ammonium ion and carbonate ion. Similarly DE 296 13 065 Ul discloses a hair beaching powder comprising hydrogen peroxide, ammonium salt and alkali carbonate or alkali hydrogen carbonate.
US Pat. No. 7204861 describes a hair colouring and hair bleaching composition comprising peroxymonocarbonate ions, alkalizing agent, ammonium ions and radical scavenger, in liquid / cream form.
In general, the cursory review of prior art reveals that the conventional permanent hair dye compositions, however, needs to be applied in two step process; which requires more time to apply on hair and hence gives discomfort to the client as well as hair dresser. Moreover, these compositions results in scalp irritation due to prolonged contact of the skin with alkalinity, peroxide and oxidation dyes. Furthermore, these compositions significantly damage the hair as the two step process needs additional alkaline peroxide treatments. Further, these compositions normally present in liquid or gel form. The liquid forms normally pose stability as well as handling problems.
However, the prior art fails to address the above mentioned problems, which the present inventors have achieved in this invention and hence sought the protection for the same. Therefore, there is a need in the art to develop stable powdered hair colour compositions and methods which are capable of providing subtle to dramatic variations in tonality and hue at one extreme, and at the other extreme, subtle to pronounced variations in shade in a one step procedure. These hair colour compositions must also be stable, gentle, and suitable for use with those who have dark and black hair.

Objectives of the invention:
The object of the invention is to provide one step method for simultaneously lighten the hair up to seven levels and imparting colour to hair with oxidation hair dyes.
Another object of the invention is to provide the consumer with a hair colourant, which provides improved lift and lightening, reduced damage, particularly brittle fibre formation, and improved colour delivery, uptake and durability without causing undue hair damage due to double processing.
A further object of the invention is to provide a powder composition for lightening and coloring the keratin fibres, which is devoid of peroxide or persulphate.
Summary of the invention:
In the present invention there is provided a one step method and a composition of powder hair colour which can simultaneously lighten the hair up to seven levels and imparting colour to hair with oxidation hair dyes. The composition for lightening and coloring of keratin fibres comprises a combination of powder oxidizing agents, ammonium salts, thickening agents, surfactants, hair care materials, oxidative dyes. The composition of the present invention is compatible with oxidation dyes and dye precursor systems and result in improved lift and lightening for blond shades, and provides excellent dye deposition & colour with improved grey coverage.
Detailed description of the invention:
The invention will now be described in detail in connection with certain preferred and optional embodiments, so that various aspects thereof may be more fully understood and appreciated.
Accordingly, the present invention describes a one step method and a composition of powder hair colour which can simultaneously lighten the hair up to seven levels and

imparting colour to hair with oxidation hair dyes. The present invention further discloses a process for preparation of the powder hair bleaching and colouring composition.
In a preferred embodiment, the invention provides powder hair bleaching and coloring composition. The 'hair bleaching and coloring composition' of the present invention primarily comprises oxidizing agent, alkalizing agent, thickening agent, surfactants, oxidative dyes and hair care materials such as conditioning agents.
Accordingly, a powdered hair bleaching and colouring composition for simultaneously lightening and permanently coloring the keratin fibres comprising:
a) an oxidizing component in powdered form in an amount effective to activate the oxidative dye component and to bleach the hair;
b) an oxidative dye component in powdered form in an amount effective for coloring and bleach the hair;
c) alkalizing agent, preferably a source of ammonium ion or ammonia in powdered form to generate ammonia in an amount effective to bleach the hair,
d) thickening component in powdered form in an amount effective to form gel;
e) surfactant in powdered form in an amount effective to impart desired viscosity and
foaming, and
f) conditioning agent in an amount to give effective conditioning.
As used herein the term 'one step method' is intended to define a method by which the 'hair bleaching and colouring composition' of the invention can be applied on to keratin fibres in one step.
As used herein the term 'hair bleaching and coloring composition' is used in the broad sense in that it is intended to encompass compositions containing the combinations herein mentioned below of an oxidising agent, an oxidative dye component, alkalizing agent and conditioning agents having a pH of 8 to 12.

Further, the term 'hair bleaching and coloring composition' is also intended to encompass compositions which contain other components which may or may not be active ingredients however, impart synergy to the total composition by providing excellent dye deposition & color with improved grey coverage.
Therefore, the term 'hair bleaching and coloring composition' encompasses the essential active and non active components of the compositions as exemplified herein below in detail without intended to limit the scope of invention.
Oxidizing Agent:
The oxidizing agents are valuable for the initial solubilisation and decolourisation of the melanin (bleaching) and accelerate the oxidation of the oxidative dye precursors (oxidative dyeing) in the hair shaft.
According to the present invention the compositions comprises 20-55 percent of powder oxidizing agents. Representative oxidizing agents include for instance Sodium percarbonate, potassium percarbonate, sodium perborate, potassium perborate, sodium peroxide, potassium peroxide, magnesium peroxide, barium peroxide, calcium peroxide, strontium peroxide urea peroxide. Mixtures of two or more such oxidising agents can be used if desired. Among them sodium perborate, potassium perborate, sodium percarbonate, potassium carbonate are preferred. Most preferred for use in the compositions according to the present invention is sodium percarbonate or potassium percarbonate.
Alkalizing agent:
According to the present invention the composition also comprises at least one source of alkalizing agent, preferably a source of ammonium ions and or ammonia. Particularly preferred alkalizing agents are those which provide a source of ammonium ions. Any source of ammonium ions is suitable for use herein. Preferred sources include ammonium

chloride, ammonium sulphate, ammonium nitrate, ammonium phosphate, ammonium acetate, ammonium carbonate, ammonium hydrogen carbonate, ammonium carbamate, ammonium hydroxide, ammonia and mixtures thereof. Particularly preferred are ammonium carbonate, ammonium chloride, ammonia and mixture thereof.
The compositions of the present invention may comprise from about 20 to 55% by weight, preferably 30 to about 55%, most preferably 40 to 55%.
Thickening agent
According to the present invention, the composition also comprises a thickening agent in a concentration of about 0.1 to about 15 weight percent of the composition. The thickening agent selected from among, carboxymethyl cellulose, carboxy vinyl polymers, hydroxyl ethyl cellulose, hydroxyl propyl cellulose, methyl cellulose, xanthan gum, carrageenan, alginic acid salts, pectin, gum Arabic, gatch gum, karaya gum, tragacanth gum, agar powder, bentonite and cross linking polyacrylic acid salts. Among them carboxymethyl cellulose, hydroxyl ethyl cellulose, xanthan gum are preferred.
Surfactants:
The compositions according to the present invention may further comprise one or more surfactants. Surfactants suitable for use herein generally have a lipophilic chain length of from about 8 to about 30 carbon atoms and can be selected from anionic, amphoteric and cationic surfactants and mixtures thereof preferably in powder form. The total level of surfactant is from about 0.1% to about 15%, preferably from about 2% to about 10%, more preferably from about 2% to about 5% by weight.
As examples of anionic surfactants, which can be used, alone or as mixtures, mention may be made, for example, the salts (such as alkaline salts, for example, sodium salts, ammonium salts, amine salts, amino alcohol salts and magnesium salts) of the following compounds: alkyl sulphates, alkyl ether sulphates, alkylamido ether sulphates,

alkylarylpolyether sulphates, monoglyceride sulphates; alkyl sulphonates, alkyl phosphates, alkylamide sulphonates, alkyl aryl sulphonates. a-olefin sulphonates, paraffin sulphonates; alkyl sulphosuccinates, alkyl ether sulphosuccinates, alkyl amide sulphosuccinates; alkyl sulphosuccinamates; alkyl sulphoacetates; alkyl ether phosphates; acyl sarcosinates; acyl isethionates and N-acyltaurates. Among the anionic surfactants, which can also be used, mention may also be made of fatty acid salts such as the salts of oleic, ricinoleic, palmitic and stearic acids, coconut oil acid or hydrogenated coconut oil acid.
The amphoteric surfactants can be chosen, for example, from aliphatic secondary and
tertiary amine derivatives in which the aliphatic radical is chosen from linear and
branched chains comprising from 8 to 22 carbon atoms and comprising at least one
water-soluble anionic group (for example carboxylate, sulphonate, sulphate, phosphate or
phosphonate); mention may also be made of (C.sub.8 C.sub.20) alkylbetaines,
sulphobetaines, (C.sub.8 C.sub.20)alkylamido (C.sub.l C.sub.6) alkylbetaines or (C.sub.8
C.sub.20)alkylamido (C.sub.l C.sub.6) alkylsulphobetaines.
Among the cationic surfactants which may be mentioned in particular are: optionally polyoxyalkylenated primary, secondary or tertiary fatty amine salts; quaternary ammonium salts such as tetraalkylammonium, alkylamidoalkyltrialkylammonium, trialkylbenzylammonium, trialkylhydroxyalkylammonium or alkylpyridinium chlorides or bromides; imidazoline derivatives; or amine oxides of cationic nature.
Oxidative Dyes
As the intermediate for oxidation dye, known precursors and couplers ordinarily
employed for hair dyes can be used. Examples of the precursor include para-
phenylenediamine, toluene-2,5-diamine, 2-chloro-para-phenylenediamine, N-
methoxyethyl-paraphenylenedi amine, N,N-bis(2-hydroxyethyl)-paraphenylenediamine,
2-(2-hydroxyethyl)-paraphenylenediamine, 2,6-dimethyl-paraphenylenediamine, 4,4'-
diaminodiphenylamine, l,3-bis(N-(2-hydroxyethyl)-N-(4-aminophenyl)amino)-2-

propanol, PEG-3,3,2'-paraphenylenediamine, paraaminophenol, paramethylaminophenol,
3-methyl-4-aminophenol, 2-aminomethyl-4-arninophenol, 2-(2-
hydroxyethylaminomethyl)-4-aminophenol, orthoaminophenol, 2-amino-5-methylphenol, 2-amino-6-methylphenol, 2-amino-5-acetamidophenol, 3,4-diaminobenzoic acid, 5-aminosalicylic acid. 2,4,5,6-tetraminopyrimidine, 2,5.6-triamino-4-hydroxypyrimidine, 4,5-diamino-l-(4'-chlorobenzyl)pyrazole and 4,5-diamino-l-hydroxyethyIpyrazole, and salts thereof.
Examples of the coupler include metaphenylenediamine, 2,4-diaminophenoxyethanol, 2-
amino-4-(2-hydroxyethylamino)anisole, 2,4-diamino-5-methylphenetole, 2,4-diamino-5-
(2-hydroxyethoxy)toluene, 2,4-dimethoxy-l,3-diaminobenzene, 2,6-bis(2-
hydroxyethylamino)toluene, 2,4-diamino-5-fluorotoluene and 1,3-bis(2,4-
diaminophenoxy)propane, metaaminophenol, 2-methyI-5-aminophenoi, 2-methyI-5-(2-
hydroxyethylamino)phenol, 2,4-dichloro-3-aminophenol, 2-chloro-3-amino-6-
methylphenol, 2-methyl-4-chloro-5-aminophenol, N-cyclopentyl-metaaminophenol, 2-
methyl-4-methoxy-5-(2-hydroxyethylamino)phenol, 2-methyl-4-fluoro-5-aminophenol,
resorcin, 2-methylresorcin, 4-chlororesorcin, 1-naphthol, 1,5-dihydroxynaphthalene, 1,7-
dihydroxynaphthalene, 2,7-dihydroxynaphthalene, 2-isopropyl-5-methylphenol, 4-
hydroxyindole, 5-hydroxyindole, 6-hydroxyindole, 7-hydroxyindole, 6-
hydroxybenzomorpholine, 3,4-methylenedioxyphenol, 2-bromo-4,5-
methylenedioxyphenol, 3,4-methylenedioxyaniline, l-(2-hydroxyethyl)amino-3,4-
methylenedioxybenzene, 2,6-dihydroxy-3,4-dimethylpyridine> 2,6-dimethoxy-3,5-
diaminopyridine. 2,3-diamino-6-methoxypyridine, 2-methylamino-3-amino-6-
methoxypyridine, 2-amino-3-hydroxypyridine and 2,6-diaminopyridine, and salts thereof.
Two or more of these precursors or couplers may be used in combination. The content of each of them or in combination in the whole composition is preferably from 0.001 to 10 wt. %, more preferably from 0.001 to 6 wt. %.
The choice of precursors and couplers will be determined by the color, shade and intensity of coloration that is desired. The precursors and couplers can be used herein,

singly or in combination, to provide dyes having a variety of shades ranging from ash blonde to black.
The hair colouring compositions of the present invention may also include non oxidative hair dyes i.e. direct dyes which may be used alone or in combination with the above described oxidative dyes. Suitable direct dyes include azo or anthraquinone dyes and nitro derivatives of the benzene series and/or melanin precursors and mixtures thereof. Such direct dyes are particularly useful to deliver shade modification or highlights.
The hair dye compositions of the present invention will generally comprise from about 0.001% to about 10% of dye components. For example, compositions providing low intensity dyeing such as natural blond to light brown hair shades generally comprise from about 0.001% to about 4%, preferably from about 0.1% to about 1%, more preferably from about 0.2% to about 1.5% by weight of dyeing composition of precursors and couplers.
Conditioning Agent
The compositions of the present invention may comprise or are used in combination with a composition comprising conditioning agents. Conditioning agents suitable for use herein are selected from silicone materials, amino silicones.
The conditioning agent will generally be used at levels of from about 0.05% to about 5% by weight of the composition, preferably of from about 0.1% to about 3%, more preferably of from about 0.2% to about 2%.
Particularly useful conditioning materials are cationic polymers. Silicones containing groups which may be ionised into cationic groups, for example aminosilicones containing at least 10 repeating siloxane — (Si (CH3)2-0) units within the polymer chain, with either terminal, graft or a mixture of terminal and graft aminofianctional groups or a mixture of both functional and terminal groups. Polymer

with terminal siloxane units of (CH3)3Si—O, examples of which include polymers known by the INCI nomenclature as trimethylsilylamodimethicone or a mixture of both functional and terminal groups, known by the INCI nomenclature as amodimethicone.
Silicones containing groups which may be ionised into cationic groups—for example silicones containing at least 10 repeating siloxane —Si(CH3)2-O) units within the polymer chain, with either terminal, graft or a mixture of terminal and graft amino functional groups, together with additional functional groups.
The preferred silicone elastomers include dimethicone / vinyl dimethocone cross polymer and cyclo penta siloxane and dimethicone cross polymer.
PH
The compositions of the present invention when mixed with water in a ratio of approximately 4-8 parts water the resultant mixture have a pH 8 to 12. Preferably, inventive compositions have a pH of from about 9.5 to about 8, more preferably from about 9.8.
In another embodiment, the invention provides process for preparation of the hair dye compositions.
Accordingly, a method of preparing the composition of the present invention comprises the steps of:
a) coating 20 to 55 % w/w powder oxidizing component with 0.1 to 15% w/w thickening agent in ribbon blender for 10 to 15 minutes at room temperature and keeping the aside;
b) adding 0.1 to 15 % w/w powder anionic surfactant, 20 to 55% w/w alkalizing agent
and 0.1 to 5% w/w conditioners one by one into the above ribbon blender;
c) blending the mixture for 10 to 15 minutes at room temperature;
d) adding 0.001 to 10 % primary intermediates and couplers into said mixture; and followed by the mixture made by step "a"

e) blending the whole mass in a ribbon blender at room temperature (about 15 degree to 30 degree. C) for 45 to 60 minutes, preferably 50 minutes to obtain a uniform powdered blend.
The following examples, which include preferred embodiments, will serve to illustrate the practice of this invention, it being understood that the particulars shown are by way of example and for purpose of illustrative discussion of preferred embodiments of the invention.
EXAMPLES:
Example 1
Powder hair colour composition for simultaneous lightening and colouring for hair, prepared by having the following formulation: Burgundy Shade

Ingredients Weight percent
Sodium Percarbonate 50
Ammonium Chloride 30
Para Phenylenediamine 0.2
Para amino ortho cresol 1.3
Para aminophenol 1.05
Cellulose gum 10
Sodium Lauryl Sulphate 5
Dim ethi cone 2.5
To use the above formulation, preferably about 1 part, of the above composition, is mixed with eight parts of water to a smooth consistency and applied to freshly shampooed hair. Keep it for 45minutes and then rinse with plain water. Hair treated with above compositions of this invention will show lustre, shiny and vibrant burgundy colour on hair.

Example No.2
Powder hair colour composition for simultaneous lightening and colouring for hair, prepared having the following formulation:
Copper Red Shade

Ingredients Weight percent
Sodium Perborate 50
Ammonium Chloride 30
Para Phenylenediamine 1
Para amino ortho cresol 1.3
Para aminophenol 0.2
Cellulose gum 10
Sodium Lauryl Sulphate 5
Dimethicone 2.5
Method of Use
To use the above formulation, preferably about 1 part, of the above compositions, is
mixed with eight parts of water to a smooth consistency and applied to freshly
shampooed hair. Keep it for 45minutes and then rinse with plain water. Hair treated with
above compositions of this invention will show lustre, shine and copper red colour on
hair.
The advantages of the present invention are:
1. Being a single-step product, it will significantly reduce the time of the hair lightening process and colouring, a feature which appeals to both, the consumer and the salon operator.
2. The composition reduces the chances of scalp irritation due to prolonged contact of the skin with alkalinity, peroxide and oxidation dyes.
3. A single-step application significantly reduces the damage to the hair because it eliminates the need for additional alkaline peroxide treatments.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative examples and that the present invention may be embodied in other specific forms without departing from the essential attributes thereof, and it is therefore desired that the present embodiments and examples be considered in all respects as illustrative and not restrictive, reference being made to the appended claims, rather than to the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

We Claim
1. A powdered hair colour composition for simultaneously lightening and
permanently coloring the keratin fibres comprising:
a) an oxidizing component in powdered form in an amount effective to activate the oxidative dye component and to bleach the hair;
b) an oxidative dye component in powdered form in an amount effective for coloring and bleach the hair;
c) alkalizing agent, preferably a source of ammonium ion or ammonia in powdered form to generate ammonia in an amount effective to bleach the hair,
d) thickening component in powdered form in an amount effective to form gel;
e) surfactant in powdered form in an amount effective to impart desired viscosity and foaming; and
f) conditioning agent in an amount to give effective conditioning.

2. The powder hair colour composition as claimed in claim I, comprising oxidizing agent in an amount ranging 20 to 55% w/w of the total composition.
3. The powder hair colour composition as claimed in claim 1, comprising oxidative dye component in an amount ranging 0.1 to 10% w/w of the total composition.
4. The powder hair colour composition as claimed in claim 1, comprising alkalizing agent, ammonium salts, in an amount ranging 20 to 55% w/w of the total composition.
5. The powder hair colour composition as claimed in claim 1, wherein the oxidizing agent and ammonium salts are present in a weight ratio of 1: 1 to 1.5: 1.
6. The powder hair colour composition as claimed in claim 1, wherein the
conditioners are selected from the group consisting of dimethicone / vinyl
dimethicone cross polymer, amodimethicone, cyclopentasiloxane and dimethicone
cross polymer.

7. The powder hair colour composition for simultaneously lightening and permanently coloring the keratin fibres as claimed in claim ] comprising:
a) approximately 0.001-10% by weight oxidative dye component;
b) approximately 20 - 55% by weight alkalizing agent, preferably ammonium ions;
c) approximately 20-55%) by weight oxidizing component;
d) approximately 0. 1 -15% by weight thickening component;
e) approximately 0.1-15% by weight surfactant component and
f) approximately 0.1- 5% by weight conditioning component of the total composition.
8. The powdered hair colour composition as claimed in claim I, wherein said composition when mixed with water in a ratio of approximately 4 to 8 parts water for each 1 part of powdered hair colour composition, the resultant mixture forms a gel that has a pH in the range of 8 to 12.
9. A method of preparing the powder hair colour composition for simultaneously lightening and permanently coloring the keratin fibres comprising:
a) coating 20 to 55 % w/w powder oxidizing component with 0.1 to 15%o w/w
thickening agent in ribbon blender for 10 to 15 minutes at room temperature and
keeping the aside;
b) adding 0.1 to 15 % w/w powder anionic surfactant, 20 to 55%> w/w alkalizing
agent and 0.1 to 3% w/w conditioners one by one into the above ribbon blender;
c) blending the mixture for 10 to 15 minutes at room temperature;
d) adding 0.001 to 10 % primary intermediates and couplers into said mixture; and followed by the mixture made in step "a".
e) blending the whole mass in a ribbon blender at room temperature (about 15 degree to 30 degree. C) for 45 to 60 minutes, preferably 50 minutes to obtain a uniform powdered blend.
Dated this 8th Day of October, 2008


Documents:

2163-MUM-2008-ABSTRACT(GRANTED)-(15-2-2014).pdf

2163-mum-2008-abstract.doc

2163-mum-2008-abstract.pdf

2163-MUM-2008-CLAIMS(AMENDED)-(23-1-2014).pdf

2163-MUM-2008-CLAIMS(GRANTED)-(15-2-2014).pdf

2163-MUM-2008-CLAIMS(MARKED COPY)-(23-1-2014).pdf

2163-mum-2008-claims.doc

2163-mum-2008-claims.pdf

2163-MUM-2008-CORRESPONDENCE(16-1-2014).pdf

2163-MUM-2008-CORRESPONDENCE(20-4-2010).pdf

2163-MUM-2008-CORRESPONDENCE(24-10-2008).pdf

2163-MUM-2008-CORRESPONDENCE(9-1-2014).pdf

2163-MUM-2008-CORRESPONDENCE(IPO)-(15-2-2014).pdf

2163-mum-2008-correspondence.pdf

2163-mum-2008-description(complete).doc

2163-mum-2008-description(complete).pdf

2163-MUM-2008-DESCRIPTION(GRANTED)-(15-2-2014).pdf

2163-MUM-2008-FORM 1(24-10-2008).pdf

2163-mum-2008-form 1.pdf

2163-MUM-2008-FORM 18(20-4-2010).pdf

2163-MUM-2008-FORM 2(GRANTED)-(15-2-2014).pdf

2163-MUM-2008-FORM 2(TITLE PAGE)-(GRANTED)-(15-2-2014).pdf

2163-mum-2008-form 2(title page).pdf

2163-mum-2008-form 2.doc

2163-mum-2008-form 2.pdf

2163-mum-2008-form 26.pdf

2163-mum-2008-form 3.pdf

2163-mum-2008-form 5.pdf

2163-MUM-2008-REPLY TO EXAMINATION REPORT(15-5-2012).pdf

2163-MUM-2008-REPLY TO EXAMINATION REPORT(7-3-2013).pdf

2163-MUM-2008-REPLY TO HEARING(23-1-2014).pdf


Patent Number 258927
Indian Patent Application Number 2163/MUM/2008
PG Journal Number 08/2014
Publication Date 21-Feb-2014
Grant Date 15-Feb-2014
Date of Filing 08-Oct-2008
Name of Patentee GODREJ CONSUMER PRODUCTS LIMITED
Applicant Address PIROJSHANAGAR, EASTERN EXPRESS HIGHWAY, VIKHROLI(EAST), MUMBAI-400079, MAHARASHTRA, INDIA.
Inventors:
# Inventor's Name Inventor's Address
1 DAVE HEMANT CHHOTALAL GODREJ CONSUMER PRODUCTS LIMITED, PIROJSHANAGAR, ESTERN EXPRESS HIGHWAY, VIKHROLI (EAST), MUMBAI-400079, MAHARASHTRA, INDIA.
2 NADKARNI RASHMI UMESH GODREJ CONSUMER PRODUCTS LIMITED, PIROJSHANAGAR, ESTERN EXPRESS HIGHWAY, VIKHROLI (EAST), MUMBAI-400079, MAHARASHTRA, INDIA.
3 AGAWANE SAGAR YUVRAJ GODREJ CONSUMER PRODUCTS LIMITED, PIROJSHANAGAR, ESTERN EXPRESS HIGHWAY, VIKHROLI (EAST), MUMBAI-400079, MAHARASHTRA, INDIA.
PCT International Classification Number A61K8/00; A61K8/22; A61K8/41
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA