Title of Invention

WATER-IN-OIL HAIR CONDITIONER WITH LAMELLAR DISPERSION IN WATER PHASE

Abstract The invention relates to opaque hair conditioner compositions that have a lamellar dispersion in the internal aqueous phase and which are water in oil emulsions that comprise: a) about 40 to 95 % aqueous phase comprising (i) water and (ii) a cationic surfactant, capable of forming lamellar dispersion, present at about 0.1 to about 10 % of the auqueous phase; b) about 0.5 to about 30 % oil, comprising a volatile silicone compound, a nonvolatile silicone compound, a volatile hydrocarbon compound, a nonvolatile hydrocarbon compound, or a mixture thereof; c) about 0.1 to about 20 % silicone surfactant; and d) optionally di-long chain alkyl amines having C10 to C22 carbon chains, long chain fatty alcohols having C10 to C22 carbon chains, or ethoxylated fatty alcohols.
Full Text FORM2
THE PATENTS ACT, 1970 (39 of 1970)
COMPLETE SPECIFICATION (See section 10; rule 13)
Title of the invention
WATER-IN-OIL HAIR CONDITIONER WITH LAMELLAR DISPERSION IN WATER PHASE
HINDUSTAN LEVER LIMITED, a company incorporated under the Indian Companies Act, 1913 having its registered office at Hindustan Lever House, 165/166, Backbay Reclamation, Mumbai-400 020, State of Maharashtra, India
The following specification particularly describes the nature of this invention and the manner in which it is to be performed

WATER-IN-OIL HAIR CONDITIONER WITH LAMELLAR DISPERSION IN WATER PHASE
BACKGROUND OF THE INVENTION
Traditionally; hair conditioners have used a combination of cationic." surfactants and" long chain fatty " alcohols to provide a desirable viscosity and an opaque appearance. It is generally believed that the conditioning benefit is mainly due to the deposition of lamellar gel phase formed by a mixture of alkyl cationic quaternary ammonium compound and fatty alcohol. In most U.S. conditioners dialkyl cationic quat is used, whereas monoalkyl quat is used in most European formulations. The difference between these two systems is that the dialkyl quat can form a lamellar gel phase by itself while the monoquat is too water soluble to do. so alone and- ::reqti±res: the addition"-of fatty alcohol to create the lamellar- gel structure.
Recent results suggest that to achieve the best instrumental
wet . combing for conditioners, less fatty alcohol is
preferred. However., it is also known that taking fatty
alcohol out of the dialkyl-based conditioners results in a
translucent and thin product. These attributes are
considered negatives by consumers. Therefore a
problem in the art has been to thicken and opacify the non-fatty alcohol containing lamellar system. In the present invention, the compositions have both high viscosity and


opacity through the use of a high internal phase water-in-oil emulsion with the lamellar gel particles dispersed inside the internal water phase.
The following is a list qf patents in this field.
US 4/057,622;-US 5,539,021; US ;S;;534,246; E.P 0.4354.83,; JP 10137576; US 5,688,831; USP 4,784,844; EP 160430; JP 7165529;
Japanese Patent Application Kokai 3-193718 (published August 23,1991); and JP 2068137
The present invention is directed to new opaque conditioning water in oil emulsion compositions that are esthetically acceptable to consumers, improve the wet combing and dry combing properties of hair, leave the dry hair with satisfactory cosmetic and physical properties. These compositions are easy to rinse, and leave the hair with a soft dry Feel.


SUMMARY OF THE INVENTION
The invention relates to opaque hair conditioner compositions that have a lamellar dispersion in the internal aqueous phase.
The purpose .of., the invention is to provide a conditioner with improved/ performance, that is opaque and thick, and contains* no" fatty alcohol? to chicken and opacify■ syscem-More specifically, the present invention relates to opaque hair conditioner compositions which are water in oil emulsions which comprise
a) about 40 to 95% aqueous phase comprising (i) water and (ii) a cationic surfactant, capable of forming lamellar dispersion, typically about 0.1 to about 10 % of the aqueous phase
b) about e;.5" to about 30"* % •" oil, comprising- a volatile silicone.compound, a nonvolatile silicone. compound, a, volatile hydrocarbon compound; a nonvolatile1 hydrocarbon compound, or ■ a mixture-thereof.
c) about 0.1 to about 20 % silicone surfactant.
d) optional compounds are those compounds that cannot form a lamellar phase alone, but can participate in the formation of a lamellar phase in the presence of cationic surfactants, in a amount of


0 to about 10%, and preferably about 0.1 to 5% by weight of the aqueous phase. Exemplary classes of such compounds includes di-long chain alkyl amines (i.e. Cio to C22) / long chain fatty alcohols (i.e. C10 to C22 )/ ethoxylated fatty alcohols.
" The -catdonic surf actan±\ . rs-y present -.at;, a; most; preferred-range of . about 1 to about 5% of the aqueous phase.
; The- aqueous" phase" is* present" in a range; of about" 70" to" - about 92%, most preferably at about 75 to about 90%.
• Component b is present at about 3 to about 20% of the aqueous phase, most preferably at about 5 to about 15% of the aqueous phase.
I The silicone surfactant is present preferably at about 0.1-; 15% of the aqueous phase, most preferably at about 0.1-10% \ of the aqueous phase.
The compositions ;of: the invention have, the following,:, viscosity ; ranges measured at 80°F: using- Brookfield at T-spindle (TA or TB!) at 0.5 rpm 20,000, cp"s to ,600,000 cps; RV 4 to 6 spindle , 20 rpm, 100 cps to 20,000 cps.
Most preferably, the present invention relates to opaque hair conditioner compositions which are water in oil emulsions which comprise:
a) about 1 to about 6% cationic surfactant in the aqueous phase


b) about 0 to about 10% silicone oil or about 0 to about 10% hydrocarbon oil with the proviso that the silicone oil and the hydrocarbon oil cannot both be 0.
c) about 0.4 to about 7% silicone surfactant
The oil phase of these compositions\ comprises ingredients b and c. The aqueous phase comprises, ingredient a..
As noted above, in the present invention, the compositions have both high viscosity and opacity through the use of a high internal phase water-in-oil emulsion with the lamellar gel particles dispersed inside the internal water phase. These compositions deliver lamellar gel phase onto the hair.
Another aspect of the invention is to provide a method of treating the hair to yield well-conditioned hair having esthetically pleasing physical properties by contacting the hair with an opaque conditioner of the present invention.
Another aspect of the invention is to provide a conditioning composition which is easy to rinse from the hair. The compositions of the invention are easy to rinse from the hair due to the presence of the lamellar dispersion.
DETAILED DESCRIPTION OF THE INVENTION


Unless indicated otherwise, as used herein, % means weight %. The starting materials set forth herein are either known or can be prepared in accordance with known methods.
By the word lamellar is meant lypotropic lamellar phases.
The lamellar phases including lamellar dispersion consist,:. of.■ stacks of, surfactant bilayersr -separated." by a solvent, , usually water. The non-polar portions of the. surfactant associate with each other and form a bilayer "unit. Water"is* dispersed""between the layers of surfactant polar groups. In this invention, the lamellar phase consists of a multilayered vesicle (or liposome)-like structure at ambient temperature. That is, the surfactant systems used in this invention have a Krafft temperature
higher than 25°C. The Krafft temperature corresponds to the . melting point of the hydrocarbon chains in the surfactant, { and is the temperature below which the surfactant | hydrocarbon chains are solid-like and ordered. For example, chloride ; is about 47°C. ■ Below that temperature including: room temperature the surfactants form lamellar dispersed phases with particle sizes in the ranges of sub-micron , to; ten microns.
More specifically, the present invention relates to opaque hair conditioner compositions which are water in oil emulsions which comprise
a) about 40 to 95% aqueous phase comprising (i) water and (ii) a cationic surfactant, capable of forming


lamellar dispersion, typically about 0.1 to about 10% of the aqueous phase
b) about 0.5 to about 30 % oil, comprising a volatile silicone compound, a nonvolatile silicone compound, a volatile hydrocarbon compound, a nonvolatile- hyea£r!ban¥i" campotmdy. ar^- a-- mixture-thereof.
c) about 0". 1! to: atijaxit" ZW ¥" silicone surfactant.
d) optional compounds are those compounds that cannot form a lamellar phase alone, but can participate in the formation of a lamellar phase in the presence of cationic surfactants, in a amount of 0 to about 10%, and preferably about 0.1 to 5% by weight of the aqueous phase. Exemplary classes of such compounds includes di-long chain alkyl amines (i.e. Cio to C22) T long chain fatty alcohols (i.e. Cio to C22 ) W- ethoxylated"fatty alcohols.
The cationic surfactant: is present at a most, preferred range of about 1 to about 5% of the aqueous phase.
The aqueous phase is present in a range of about 70 to about 92%, most preferably at about 75 to about 90%.
Component b is present at about 3 to about 2 0% of the aqueous phase, most preferably at about 5 to about 15% of the aqueous phase.


The silicone surfactant"is present preferably at about 0.1-15% of the aqueous phase, most preferably at about 0.1-10% of the aqueous phase.
Most preferably, the present invention relates to opaque
hair conditioner compositions which are water in oil
emulsions: which f compriiseK ~
a) . about ,1. to about 6% cat ionic ;surfactant in the;
aqueous- "phases-. -
b) about 0 to about 10% silicone oil or about 0 to about 10% hydrocarbon oil with the proviso that the silicone oil and the hydrocarbon oil cannot both be 0. ,-/"-.
c) about 0.4 to about .7% silicone surfactant
The oil phase of these compositions comprises ingredients b and c. The aqueous phase comprises* ingredient a.
As noted above, inr the present invention," the compositions have both high-viscosity and" opa,city through the use1 of1 a high "internal phase water-in-oil emulsion with the lamellar gel particles dispersed inside the internal water phase. These compositions deliver lamellar gel phase onto the hair.
Another- aspect of. the., invention is to provide a method of treating the hair to yield well-conditioned hair having esthetically pleasing physical properties by contacting the hair with an opaque conditioner of the present invention.

Another aspect of the invention is to provide a conditioning composition which is easy to rinse from the hair. The compositions of the invention are easy to rinse from the hair due to the presence of the lamellar
Cation-ic? -surf a^t ants ■ arc the- compositions^ of^ the- invention: can have the structure

wherein Ra is an alkyl group including from about 8 to about 20 carbon atoms; R2 is selected from the group consisting of an alkyl group including from about 8 to about 20 carbon atoms, a hydrogen atom, a methyl group, an ethyl group, a hydroxymethyl group and a hydroxyethyl group; Ri is selected from- the group" consisting of a benzyl group, a hydrogen group, a methyl group, an ethyl group, a hydroxymethyl group and a hydroxyethyl group;" R4 is selected from the group consisting of a hydrogen atom, a methyl group, an ethyl group, a hydroxymethyl group and a hydroxyethyl group; and x is an anion. The quaternary nitrogen of the water-soluble quaternary ammonium compound also can be a- component of a heterocyclic nitrogen-containing moiety, such as morpholine or pyridine. The anion of the quaternary ammonium compound can be any common anion, such as chloride, methosulfate,


ethosulfate, nitrate, bromide, tosylate, acetate, or phosphate.
The water-soluble quaternary ammonium compounds have one or two long chain alkyl groups containing from about 8 to about 18 carbon atoms. The long chain alkyl groups also can include,; in." addition to; or in"■■ replacement"" of, carbon and hydrogen atoms, ether linkages or similar water-solublizing linkages., The: remaining two or three substitutes of. the quaternary-nitrogen of the" quaternary- ammonium" compound can be hydrogen; benzyl; or short chain alkyl or hydroxyalkyl groups, such as methyl, ethyl, hydroxymethyl or hydroxyethyl groups; or combinations thereof, either of the same or different identity.
Exemplary water-soluble quaternary ammonium compounds include, but are not limited to, laurtrimonium chloride;
\ Quaternium-16; lauralkonium chloride; olealkonium chloride; dilauryldimonium . ch.lari.de.;, cetalkanium. chloride,;,
J dicetyldimonium: chloride; laurylpyridinium chloride;
cetylpyridinium chloride; soyatrimoniutn chloride;
Polyquaternium-6; Polyquaternium-7;
guarhydroxypropyltrimonium chloride,- polyquaternium-11; polyquaternium-5; polyquaternium-10; polyquatemium-24; cetrimonium chloride; Quaternium-24; mytrimonium chloride; PEG-2, cocomonium chloride; PEG-2 cocoyl quaternium 4; PEG-15 cocoyl quaternium 4; PEG-2 stearyl quaternium 4; PEG-15 stearyl quaternium 4; PEG-2 oleyl quaternium 4; PEG-15 oleyl quaternium 4, and mixtures thereof, wherein the compound designation is provided by the Cosmetic, toiletry and Fragrance Association, Inc. in the CTFA Cosmetic Ingredient


Dictionary, 4th Ed., 1991, hereinafter referred to as the CTFA Dictionary, Other water-soluble quaternary ammonium compounds are listed in the CTFA Cosmetic Ingredient Handbook, 1st Ed., 1988 (hereinafter the CTFA Handbook) at page 4 0-42, incorporated herein by reference
Exemplary of . the .silicone- surf actants-or,. emulrsif-iers.." that are used in compositions of the invention is a dimethicone, which., is-", su. dime thy lsiloxane polymer having , polyoxyethylene arid/or-* polyoxypropylehe-" s*ide These dimethicone copolyols . which are employed in compositions of the invention, can be dimethicone copolyols with HLB values of less than 10, more preferably about 2 to about 8. These dimethicone copolyols can have a molecular weight of about 600 to about 20,000. These dimethicone copolyols can be from the SILWET series such as DC 5225C and DC 3225C. Also alkyl dimethicones such as cetyl dimethicone can be used in compositions of the invention.



Dimethicone copolyols can have the following formula:


Another exemplary, but non-limiting, oil-soluble, silicon-based surfactant is an alkyl dimethicone copolyol, such as cretyl dimethicone copolyol available commercially as ABIL EM 90 from Goldschmidt Chemical Corporation, Hopewell, VA. the alkyl dimethicone copolyols have the structure:

wherein p is numeral from 7 through 17;
q is a numeral •frortrl through 100;
m is a numeral from 1 through 40;
n is a numeral from 0 through 2 00; and
PE is (C^HiO"aCCsHsO^-H having a molecular- weight" of about 250 to about 2 000, wherein a and b are selected such that the weight ration of C2H4O/C3H60 is from 100/0 to 20/80.


Structure, of Volatile Silicone Oils which can be included in compositions of the invention
The silicone oil phase of. the compositions of the invention
comprises a volatile silicone oil, a nonvolatile silicone
oil phase or a mixture thereof preferably, the volatile
silicone; compound;, Exemplary volatile , silicone compounds
include,, but are not limited to, volatile, low molecular-
weight /polydimethylsiloxane compounds. ,They can be either a-
linea-r or a* cyclic polydiTOet-hylsiloxane compound having a-
viscosity of about 0.5 to 10 est (centistokes) . The
preferred-volatile-.poXydimethylsiloxanes have a viscosity in the range of about 0.5 to about 6 est.
The cyclic, volatile, low molecular weight
polydimethylsiloxanes, designated in the CTFA Dictionary as
cyclomethicones, are the preferred siloxanes used in a
composition of the present invention. These volatile
compounds, have, an... ascerag^-. oX about. 3. to., about 6 - L, 0-S.i
(CH3)2 ] - repeating group units per molecule
(hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane,
decamethylcyclopentasiloxane,, dodecamethylcyclohexasiloxane,; and mixtures thereof); boil at atmosphere pressure at about 150 °C to about 250 °C. The polydimethyl cyclosiloxanes having an average of about 4 to about 5 repeating units per molecule are especially preferred. Suitable cyclomethicones are available commercially under the trade names DOW CORNING 245 Fluid, DOW CORNING 344 Fluid and DOW CORNING 345 Fluid from DOW CORNING Corporation, Midland, MI., and SILICONE SF-1173 and SILICONE SF-1202 from General Electric , Waterford, NY.


An example of a linear, low molecular weight, volatile polydimethylsiloxane compound is designated in the CTFA Dictionary as decarnethyltetrasiloxane, available commercially under the trade names DOW CORNING 200 Fluid
i having a viscosity of 1.5 est and a boiling point of 195 °C.
= Other - .linear. pol.ydime.thyil.siloxaues.., includes. octamethyltrisiloxane, and decamethylpentasiloxane also be useful".xnr the composition of the. present invention,.
t Structure of Volatile Hydrocarbon Oils which can be included I in compositions of the invention
The volatile hydrocarbon oil phase comprises about 6 to 20 carbon atoms. A preferred volatile hydrocarbon compound is an aliphatic hydrocarbon having about 8 to 16 carbon atoms, and having a boiling point of about 100 to 250 °C. Exemplary volatile hydrocarbon compound include,, isododecane ! and: isohexadecane, i.e.,. PERMETHYL: 99A, . PERMETHYL- l;01A> available from Presperse, Inc., South Plainf ield,. NJ. Other examples are- depicted in general. ..structure formula (I), wherein n ranges from 2 to 3.



Another-"e-xemplary volatile hydrocarbon compound is ISOPAR M (a C12 - C14 isoparaffin available From EXXON Chemical Co., Baytown, TX).
Structure of Non-volatile Silicone Compounds which can be inclnidedT1 rri; compositions: of the invent ion
Exemplary nonvolatile silicone compounds include. a
rpoly^imethylsilJoxajiey. polya-lkyl siloxane", a pol"yaryl
siloxane or a polyalkylaryl siloxane. The nonvolatile
silicones are nonfunctional siloxanes or siloxane mixtures
having a viscosity of about 10 to about 10,000 est , and
most preferred viscosity about 10 to 500 est at 25 °C. A
nonvolatile silicone compound having a boiling point at
atmospheric pressure of greater than about 250 °C. A
> phenyltrimethicone also is useful as a nonvolatile silicone compound. Example include DC 556 fluid, which is available f ronv Dow- Corning; -.- •
Structure of Non-volatile Hydrocarbon Compounds which can be included in compositions of the invention
The nonvolatile oil phase also can comprise a nonvolatile hydrocarbon compound, such- as mineral oil, isoeicosane. Other exemplary compounds includes water insoluble emollient, such as, for example, an ester having at least about 10 carbon atoms, and preferably about 10 to about 32 carbon atoms. Suitable esters include but not limited to,


for example, aliphatic monohydric alcohol esters including isopropyl myristate and aliphatic di- or tri-esters of po.lycarboxylic acids including dioctyl adipate.
Polymeric Resins Which Can be Included in Compositions of the Invention ,
Compositions of , the. invention also can.; comprise, polymeric
compound", can, he, a hair;, £ixat,iy/e ox., filni:fdrraex; that; .imparcs.
style-retention properties to hair, i.e. sets the hair. The
hair fixative typically is a homopolymer, a copolymer, or a
terpolymer. The polymer can be nonionic, amphoteric or
cat ionic. Examples of hair fixatives include, but not
limited to, an acrylamide copolymer; a polyethylene
copolymer; an water-dispersible polyester; a cationic
cellulose; a polyacryl amide; Polyquaternium-1;
Polyquaternium-2; Polyguaternium-4,- Polyquaternium-5;
Polyquaternium- 6; Polyquat ernium- 7; Polyguaternium- 8 ;
Polyquaternium-9; Polyquaternium-10; Polyquaternium-11;
Polyquat ernium-12;, Polyquat ernium-13; . Polyqua.ternium-14;
Polyquat ernium-15; Polyquaternium-16;. Polyquat ernium- 2 8r, . a
PVP (polyvinylpyrrolidone), a
PVP/dimethylaminoethylmethacrylate copolymer; a vinylpyrrolidone/vinyl acetate copolymer; copolymers of vinylpyrrolidone and long-chain a-olefins; • a vinyl caprolactam/vinylpyrrolidone/dimethylaminoethyl methacrylate terpolymer; a N-alkylpyrrolidone; and mixtures thereof.


Examples of Optional Compounds Which can be Included in Compositions of the Invention
Exemplary classes of such, compounds includes di-long chain alkyl amines (i.e. Ci0 to C22) / long chain fatty amine (i.e. C10 to C22) , long chain fatty alcohols (i.e. C10 to C22 )/ ethoxylatedr fatty "alcohols:, and double-tailed phospholipids^. Specific compounds capable of participating in the fformation of a lamellar dispersed, phase, include . dipalmit"ylamine:,. st earamidopropyl dimethyl-amine, cetyl alcohol, stearyl alcohol-, steareth-2, . steareth-21, phosphatidyl serine, phosphatidylcholine and mixtures thereof.
Other optional ingredients included in compositions of the invention may be paraffin, vaseline solid paraffin, squalene, oligomer olefins and the like; amidoamines such as stearamidopropyl dimethylamine, isostearamidoethyl morpholine, behenamidopropyl dimethylamine and the like; humectants. . such as, glycerine», propylene glycol* glycerol* sorbitol and the like; esters, such as isopropyl palmitate, isopropyl myristate, and stearyl stearate and the like; emulsifiers such as glyceryl monostearate, sorbitan monopalmitate, polyoxyethylene stearate and the like; cellulose derivatives such as hydroxypropylcellulose; cationic cellulose, hydroxyethyl cellulose and the like; thickening agents such as natural polymers and the like; and other ingredients such as solvents, bacteriocides, colors, and fragrances.
Compositions of the invention can take the form of leave-in or rinse out conditioners


Compositions of the invention may be prepared by methods which are known to those skilled in the art. Ingredients used in the preparation of compositions of the invention are s either known or may be prepared by known methods.
; To. use the rinse? out- compasit&orfsh" off- tft& invention"" ccr: condition hair> one- first wets the hair, then applies the composition1 of, the. "invention, , then.. . lathers the hair/, and then rinses the...hair.. Alternatively,,, water* and., conditioner may be applied to the hair simultaneously. Conditioning with compositions may be done right after shampooing when the hair is still wet. Alternatively, conditioning the hair may be done separately from shampooing.
Compositions of the invention may be leave-in conditioners as mentioned above. In such cases, the compositions of the invention are simply worked into the hair usually by using the fingers.
Compositions of the invention provide .. unexpectedly . superior conditioning without the use of fatty .alcohols.
Compositions of the invention can be prepared as follows:
1) Prepare lamellar phase dispersion .with cationic surfactant and water. Heating can accompany this step.
2} Premix the oil phase with the silicone surfactants,
3) Emulsify 1 and 2.


To demonstrate the new and unexpected results achieved by the present invention, the compositions of the invention as shown below were prepared. These compositions were prepared using known starting materials or starting materials which may be obtained by known methods. These" compositions were prepared by methods, which"- aire" known- iir-trherr art"Hdrt-"wKEch^aare-; analogous to those known in the art.
Compositions of the- invention• are as. follows.: ,


Example of High Internal Phase Emulsion using different types of silicone emulsifiers

1 Cetyl Dimethicone copolyol,100% active, from Goldschmidt
2 Dimethicone Copolyol. and: Cyclopentasiloxane, 85% active;;
from Goldschmidt
3 Dimethicone Copolyol, 100% active, from OSI Specialties
4 Cyclomethicone and Dimethicone Copolyol, 10 % active, from
Amerchol, Edison, NJ.
5 Distearyldimethylammonium Chloride, 100 % active, from
Witco Corp., Greenwich, CT.


The following are examples of high internal phase emulsions using different types of non-volatile external oils.

Polyphenylmethylsioxane, nonovolatdle silicone oil, 100% active, from Dow Corning.
2S

Examples of Wet-Combing force data for different formulations
Generally, the lower the wet combing force the better the wet conditioning. Conventional conditioners have a wet combing •f"orce thatr ranges from? abontr 10 to abotitr 2£F;gnK.i ,

Wet combing experiments were carried out :om the Instron 5500. series; All""tjestlng was* csrrtedKaxxt: by„ applying;,"0"."3T mE" of product to bleached and waved 2 gm hair tresses.



Compositions of the invention showed equal or better wet-combing force than a commercial composition.

A composition of the invention which includes a styling resin, and which has styling properties, was made, and is set forth just below.

a. PVP K-90, polyvinylpyrrolidone, 100% powder, ISP Van
Dyk, Belleville, NJ b Brii 58; polyoxyethylene (20) cetyl ethers ICI
Surfactants,. Wilmington;, DEI C Dow Corning 2-1391 emulsion, Branched Dimethiconol and
TEA Dodecylbenzenesulfonate and Laureth-23, 26 . %
active; Dow Corning, Midland, MI. d. Cyclomethicone and Dimethicone copolyol, 10% active,
Dow Corning, Midland, MI.


CLAIMS
1. An opaque water in oil hair conditioning composition comprising:
a) about 40 to 95% aqueous phase comprising, (,i) water, and (ii) a cationic surfactant, capable of forming lamellar dispersion, said cationic surfactant being^psessab. afc. .abaate &Jk to*; about,- 10-% o£ the.;/ aqueous pha.se;
b) about 0.5 to about 30% oil, selected from the group consisting of a volatile silicone compound, a nonvolatile silicone compound a volatile hydrocarbon compound, a nonvolatile hydrocarbon compound, or a mixture thereof;
c) about 0.1 to about 20% silicone surfactant; and
d) optionally di-long chain alkyl amines having Cio to C22 carbon chains, long chain -fatty alcohols having C10 to C23 carbon" chains/ or ethoxylated fatty alcohols.
2. A composition in accordance with claim 1 wherein the cationic surfactant is present at- range of about 1 to about 5%- of the-aqueous phase.


A composition in accordance with claim 1 wherein the aqueous phase is present in a range of about 70 to about 92%.
A composition in accordance with claim 1 wherein the aqueous phase is present in a range of about 75 to about 90%.
A composition in accordance with claim 1 wherein component b is present at about 3 to about 2 0% of the aqueous phase.
A composition in accordance with claim 1 wherein component b is present at about 5 to about 15% of the aqueous phase.
A composition in accordance with claim 1 wherein the silicone surfactant is present at about 0.1-15% of the aqueous phase.
A composition in accordance with claim 1 wherein the silicone surfactant is present at about 0.1-10% of the aqueous phase.


9. A composition in accordance with claim 1 which
comprises:
a) about 1 to about 6% cationic surfactant in the aqueous phase,
b) about 0 to about 10% silicone oil or about 0 to about 10% hydrocarbon oil with the proviso that the silicone oil and the hydrocarbon oil cannot both be 0, and
c) about 0.4 to about 7% silicone surfactant.

10. A composition according to claim 1 which is a rinse out conditioner or a leave-in conditioner.
11. A composition according to claim 1 wherein the cationic surfactant is a compound of the formula
R2
I
Rx — N — R3 X
I R4
wherein Ra is an alkyl group including from about 8 to about 20 carbon atoms; R2 is selected from the group consisting of an alkyl group including from about 8 to about 2 0 carbdn atoms, a hydrogen atom, a methyl group, an ethyl group, a


hydroxymethyl group and a hydroxyethyl group; R3 is selected from the group consisting of a benzyl group, a hydrogen group, a methyl group, an ethyl group, a hydroxymethyl group and a hydroxyethyl group,- R4 is selected from the group consisting of a hydrogen atom, a methyl group, an ethyl group, a hydroxymethyl group and a hydroxyethyl group;
or the quaternary nitrogen of the water-soluble quaternary ammonium compound also can be a component of a heterocyclic nitrogen-containing moiety, such as morpholine or pyridine and the anion of the quaternary ammonium compound is chloride, methosulfate, ethosulfate, nitrate, bromide, tosylate, acetate, or phosphate.


12. A composition according to claim 1 wherein the silicone surfactant is a dimethicone copolyol with an HLB value of less than 10, and a molecular weight of about 600 to about 20,000.
13. A composition according to claim 1 wherein the silicone surfactant has the formula

wherein p is numeral from 7 through 17;
q is a numeral from 1 through 100;
m is a numeral from 1 through 40;
n is a numeral from 0 through 200; and
PE is (C2H4O)a(C3Hfi0)b-H having a molecular weight of about 250 to about 2000, wherein a and b are selected such that the weight ration of C2H4O/C3H50 is from 100/0 to 20/80.


14. A composition as claimed in claim 1 wherein said volatile hydrocarbon compound is 6 to 20 carbon atoms.
15. A composition as claimed in claim 1 which comprises a nonvolatile silicone compound selected from.the group consisting of a polydimethylsiloxane, polyalkyl siloxane, a polyaryl siloxane and a polyalkylaryl siloxane.
16. A composition as claimed in claim 1 which comprises isoeicosane, isopropyl myristate, or dioctyl adipate.
17. A composition as claimed in claim 1 which further comprises a polymeric resin.

Documents:

in-pct-2001-01612-mum-cancelled pages(15-10-2004).pdf

in-pct-2001-01612-mum-claims(granted)-(15-10-2004).doc

in-pct-2001-01612-mum-claims(granted)-(15-10-2004).pdf

IN-PCT-2001-01612-MUM-CORRESPONDENCE(8-2-2012).pdf

in-pct-2001-01612-mum-correspondence(ipo)-(26-12-2005).pdf

in-pct-2001-01612-mum-correspondence1(11-6-2007).pdf

in-pct-2001-01612-mum-correspondence2(19-12-2001).pdf

in-pct-2001-01612-mum-form 19(23-6-2003).pdf

in-pct-2001-01612-mum-form 1a(16-6-2004).pdf

in-pct-2001-01612-mum-form 2(granted)-(15-10-2004).doc

in-pct-2001-01612-mum-form 2(granted)-(15-10-2004).pdf

in-pct-2001-01612-mum-form 3(19-12-2001).pdf

in-pct-2001-01612-mum-form 5(19-12-2001).pdf

in-pct-2001-01612-mum-form-pct-ipea-409(17-11-2003).pdf

in-pct-2001-01612-mum-form-pct-isa-210(17-11-2003).pdf

in-pct-2001-01612-mum-petition under rule138(15-10-2004).pdf

in-pct-2001-01612-mum-power of attorney(31-7-2002).pdf


Patent Number 213009
Indian Patent Application Number IN/PCT/2001/01612/MUM
PG Journal Number 04/2008
Publication Date 25-Jan-2008
Grant Date 19-Dec-2007
Date of Filing 19-Dec-2001
Name of Patentee HINDUSTAN LEVER LIMITED
Applicant Address HINDUSTAN LEVER HOUSE, 165-166 BACKBAY RECLAMATION, MUMBAI - 400 020,
Inventors:
# Inventor's Name Inventor's Address
1 CHEN LIANG BIN UNILEVER HOME & PERSONAL CARE USA, 3100 EAST GOLF ROAD, ROLLING MEADOWS, CHICAGO, ILLINOIS, 60008,
2 SUN WEI-MEI UNILEVER HOME & PERSONAL CARE USA, 3100 EAST GOLF ROAD, ROLLING MEADOWS, CHICAGO, ILLINOIS, 60008,
PCT International Classification Number A61K 7/00
PCT International Application Number PCT/EP00/04726
PCT International Filing date 2000-05-17
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 09/344015 1999-06-25 U.S.A.