Field of Invention
The present invention relates to a conditioning hair wash composition that provides excellent foaming characteristics, cleansing and conditioning benefit. The composition provides improved conditioning by way of improvement in denser and thicker lather, as well as improved consumer benefit of gloss and shine on hair.
Background and prior art
Since a long time, shampoos have been widely used for cleansing purposes. One of the critical ingredients in a shampoo composition is a cleansing agent, which in most cases could be surfactants, detergents or foaming agents. The cleansing agent helps in cleaning the hair by removing excess soil and sebum from the hair and the scalp. In the process they also remove natural oils and positive charges from the hair, leaving the hair and scalp dry. It also produces static charge, causing flyaways. This often makes the hair rough, lusterless, frizzy and difficult to manage.
In order to overcome this problem, conditioners were made. The positively charged surfactants in hair conditioners get attracted to the negative charges in the hair, and do not rinse out completely with water. When the hair dries, it is coated with a thin film, which adds weight, makes the hair easier to comb, and prevents static electricity from building up and 'frizzing' the hair. It also softens the hair, retains the moisture and thus improves the texture and manageability of the hair.
US Patent no. 4719104 describes a conditioning preparation where cationic film forming polymers have been used in combination with distearyldimethylammonium salt.
For many years, it was necessary to perform the act of cleaning and conditioning in two separate steps. However, with the advent of so-called "two-in-one" conditioning shampoos, it became possible to condition and cleanse simultaneously. Patent 6489286 describes a two in one shampoo formulation where conditioners have been added to the shampoo composition thus giving both cleansing and conditioning benefits in the same product. US Patent 5573756 also describes a shampoo

conditioner composition, which includes a concentrated surfactant, a cationic
i conditioner, and a carrier.
A conditioning ingredient should have the basic characteristic of being water-insoluble, easy to be spread and have some affinities with the application objects. A variety of conditioning agents have been used in making conditioners. These include silicones, cationic polymers and oily materials such as hydrocarbons, higher alcohols, fatty acid esters, glycerides and fatty acids. Silicones, such as dimethicone, and derivatives are water-insoluble and are widely used conditioning ingredients. Furthermore, silicones usually give good hair protection, softening, shine and detangling effects.
Even though, silicones act as excellent conditioners, they tend to suppress foam when used in formulations. This adversity may hinder the cleansing property of the composition because extensive foaming is desirable for proper cleansing..
US 6436383 and Indian filing application no. 142/BOM/1999 refers to shampoo compositions for conditioning benefits and describes the use of amino functionalized silicones in surfactant based shampoo compositions along with small particle size emulsified non amino silicone. This invention uses emulsion polymerized dimethiconol that are made from cyclic silicones. Cyclic silicones are known to negatively impact lather of conditioning shampoo composition as discussed in ZA9709572. One of the ways to overcome is emulsion polymerized silicone made using linear dimethyl polysiloxane monomers as described in ZA9709572.US 6,696,053 relates to a leave-on or rinse-out hair conditioning composition that provide styling benefits as well as body to hair, comprising cationic silicone quaternary compound; a cationic thickener; a volatile silicone; and a carrier, wherein said carrier is selected from the group consisting of water, a hydroalcoholic solvent and a mixture thereof. Further optional ingredients include non-volatile silicone quaternary compounds that are included in the oil phase of compositions. The preferred other silicone compounds are polyalkylsiloxanes such as polydimethylsiloxane including dimethicones, and polymethylphenylsiloxane. Further amino silicones as well as volatile silicones including cyclic, low molecular weight polydimethylsiloxanes and linear low molecular weight, volatile polydimethylsiloxane compound are also included.

US 6,685,952 teaches hair care composition which comprises an external oil phase which further comprises a mixture of non-volatile and volatile silicone oils, and a silicone surfactant; and an internal aqueous phase that is about 80% to about 95% of the composition; and a water soluble or oil soluble holding polymer; and wherein said composition substantially lacks a fatty alcohol. The silicone surfactant is alkyl dimethicone copolyol. The composition further includes anionic, cationic or amphoteric or nonionic surfactants. The composition provides enhanced conditioner properties even without use of alcohols and exhibit enhanced overall liking, wet feel detangling, softness, body, bounce and volume which may be attributed to the lack of fatty alcohol materials which may build up on the hair and weigh the hair down.
Hair treating compositions containing aminofunctional polysiloxanes have also been described. For example, in U.S. 4,563,347 it is disclosed that an aqueous emulsion of aminoalkyl substituted polydimethylsiloxane is useful to condition hair because it facilitates combing and imparts a smooth feel to hair. The aminoalkyl substituents are credited with providing the copolymers with cationic sites that make the polymer more substantive to hair than nonsubstituted polydimethylsiloxane. The '347 patent . further teaches the use of aminofunctional polydiorganosiloxane solutions and emulsions as conditioners. Other hair treating compositions containing amino functional polysiloxanes are described in U.S. Pat. Nos. 4,586,518, 4,601,902, and 4,618,689,
US 6,153,569 relates to an optically clear shampoo composition comprising an aminofunctional silicone microemulsion having an average particle size of less than 0.06 microns, at least one anionic detersive surfactant, at least one foam boosting agent, at least one pH adjusting agent, at least one thickening agent, and water. The foam-boosting agent is preferably selected from the group consisting of fatty acid alkanolamides and amine oxides.
Use of silicones in shampoo compositions has been disclosed in a number of different patents: U.S. 2,826,551, Mar. 11, 1958; U.S. 3,964,500, Jun. 22, 1976; U.S. 4,364,837, Dec. 21, 1982; GB. 849,433, Sep. 28, 1960; U.S. 4,741,855; U.S. 4,788,006 and 4,902,499; U.S. 4,704,272.; U.S.. 4,954,335 ; US5,328,685. The silicones are well known to substantially reduce the foaming of anionic cleansing surfactants. A problem to solve in silicone-containing conditioning shampoos is that

of providing a conditioning shampoo that provides excellent cleansing of the hair while providing high foaming and, at the same time, also has excellent conditioning performance. Polyethylenimine (PEI) is disclosed as a separate component for a conditioning shampoo in U.S. 5,221,530. PEI provides excellent wet combing benefits, but does not significantly improve dry combing. While the addition of a silicone fluid and/or silicone gum to a conditioning shampoo improves dry feel, the silicones require the use of a suspending agent, and also lower the amount of foam generated during shampooing. US 5,756,080 teaches conditioning shampoo for thoroughly cleansing and conditioning hair while maintaining foam comprising, water; an anionic surfactant; and a polyethylenimine-silicone graft copolymer containing repeating units of (CH2CH2 NH)n, wherein n is about 5 to about 2500. This composition provides excellent conditioning, cleansing, and foam levels by incorporating a conditioning agent that is a graft copolymer of polyethylenimine and a silicone polymer into a shampoo formulation. By "PEI-silicone graft copolymer," it is meant that a PEI can be grafted onto a silicone polymer backbone, or a silicone polymer can be grafted onto a PEI backbone, preferably the silicone polymer is an organosiloxane
US 6,451,298 teaches composition comprising at least one silicone copolymer of defined dynamic viscosity comprising polysiloxane and at least one silicone compound which may be in the form of silicone emulsions along with cationic surfactants. This composition provides easy detanglement of hair and styling and easy managing of hair along with cleansing effects.
6,368,584 teaches detergent cosmetic composition, characterized in that it comprise, in a cosmetically acceptable medium, at least one anionic surfactant chosen from 2-hydroxyalkyl ether carboxylic acid or salts thereof and at least one silicone polymer chosen from volatile or non-volatile, linear, branched or cyclic and crosslinked or non-crosslinked polyalkylsiloxanes, polyarylsiloxanes or polyalkylaryisiloxanes, polysiloxanes comprising, defined one or more organofunctional groups; linear polysiloxame(A)-polyoxyalkylene(B> block copolymers of (A~B)n type with n>3; grafted silicone polymers with a non-silicone organic backbone; grafted silicone polymers with a polysiloxane backbone which is grafted with non-silicone organic monomers. The hair treated with this composition is soft and sleek and easily

disentangled The silicone polymers which can be used in accordance with this art can be soluble or insoluble in water or in the final composition* volatile or non-volatile, preferably the silicone polymers are in particular insoluble in water and can be provided in the form of oils, waxes, resins or gums. When they are volatile, the polyalkoxysiloxanes, polyarylsiloxanes or polyalkylarylsiloxanes are chosen more particularly from those having a boiling point of between 60° C. and 260°C. In one embodiment, use is made of non-volatile polyalkylsiloxanes, polyarylsiloxanes or polyalkylarylsiloxanes in the form of oils, of silicone gums or of silicone resins, all the silicones can also be used in the form of emulsions or of microemulsions. The silicones which are particularly preferred in accordance with this art are polydimethylsiloxanes with end trimethylsilyl groups, such as oils having a viscosity of between 0.2 and 2.5m2/s at 25°C like dimethyiconol, trimethylsilyl amidomethicones, etc. the surfactant used may be anionic, non ionic, cationic , amphoteric. Common additives plus cationic polymers are indictated.
6,290,942 teaches defined carboxyl bearing silicone emulsion and composition with shampoo base and said polymers which provides smoothness, soft feel and easy to brushing.
US 5,714,446 disclosed are hair conditioning shampoo compositions comprising an anionic surfactant component; a dispersed, insoluble, nonionic silicone hair conditioning agent, said silicone hair conditioning agent comprising a non-volatile, insoluble, nonionic silicone fluid component; a soluble cationic, amino or quaternary ammonium conditioning surfactant having a cationic nitrogen atom and at least one TM-radical containing one or more hydrophilic moieties that are within 4 carbon atoms (inclusive) of a cationic nitrogen, said hydrophilic moieties being selected from the group consisting of alkoxy, polyoxyalkylene, alkylamido, hydroxyalkyl, and alkylester moieties, and combinations thereof; and an aqueous carrier. These shampoo compositions can provide excellent overall hair conditioning benefits, in conjunction with excellent cleaning performance, to a variety of hair types. Suitable insoluble, nonvolatile silicone fluids include polyalkyl siloxanes, polyaryl siloxanes, polyalkylaryl siloxanes, polyether siloxane copolymer and mixtures thereof. However, other insoluble, nonvolatile silicone fluids having hair conditioning properties may be used. Another silicone material that can be especially useful in the

silicone conditioning agents is insoluble silicone gum, preferably a mixture of a polydimethylsiloxane gum. Optionally silicone resins may be present.
US 568557 teaches hair care compositions with silicone copolymers, US 564806 teaches solid silicone compositions with polyethele solidifying of low molecular weight and non-volatile silicone fluid for use in skin and hair care composition.
US 5,612,301 discloses hair conditioning shampoo compositions, containing a detersive surfactant component, a nonvolatile silicone hair conditioning agent, and water and preferably comprising a suspending agent for the silicone conditioning agent. The detersive surfactant component includes a combination of anionic surfactant and a polyethylene glycol glyceryl fatty ester nonionic surfactant, and optionally contains amphoteric, zwitterionic, or other nonionic surfactants, or mixtures thereof wherein the polyethylene glycol glyceryl fatty ester was found to improve the deposition of silicone conditioning agent on hair.
US 5,556,616 teaches a hair conditioning shampoo composition including one or more anionic cleansing surfactants, such as ammonium lauryl sulfate (ALS) or ammonium lauryl ether sulfate (ALES), and a Polyethylene imine-silicone copolymer conditioner, that is stable over extended periods of time at elevated temperature. This composition provides excellent foaming and cleansing with a smaller amount of strong anionic cleansing detergents, such as a long chain alkyl sulfate, or a partially ethoxylated long chain alkyl sulfate or sulfonate, by incorporating into the shampoo formulation a conditioning agent that is a copolymer of polyethyleneimine on a silicone polymer backbone.
US 5,417,965 teaches a conditioning shampoo containing an anionic cleansing surfactant and a combination of cationic polymers comprising a cationic (protonated) polyethyleneimine and a cationic oil-soluble, water-dispersible, cross-linked quaternary aerylate/acrylamide copolymer (Polyquaternium 32), such that the composition, provides excellent foaming, conditioning and stability, without settling of water-insoluble materials due to anionic-cationic complexing. The composition preferably also includes one or more silicone conditioning agents, and has overall conditioning to human hair, and unexpectedly maintains very high levels of foam by

including a protonated polyethyleneimine and a cationic acrylate/acrylamide copolymer, particularly Polyquaternium 32 in the composition.
US 5,362,484 teaches conditioning composition with silicone oil, comprising a stable emulsion of a water-insoluble hair conditioning non-volatile silicone oil dispersed in a liquid carrier consisting of polyoxyalkylene glycol, US5306434 teaches an after-shampoo hair conditioner composition comprising an aqueous dispersion of a water-insoluble hair-conditioning silicone oil said composition containing a dispersing agent for said silicone oil consisting of a diquaternary polydimethylsiloxane. US554313 shampoo compositions with nonvolatile silicone materials
US 5,085,857 discloses aqueous shampoo composition comprising surfactant, the cationic conditioning polymer and an aqueous emulsion of the silicone wherein incorporating the silicone oil as a preformed aqueous emulsion with a particular type of cationic conditioning polymer in a surfactant-based shampoo composition imparts improved conditioning benefit to the hair and reduces antifoam effect of silicone oil. Silicone of smaller particle size was effective in controlling the antifoam effect as well as provides stable composition compared to silicone of larger size.
US 5,034,218 is directed to a hair conditioning shampoo composition including one or more anionic cleaning surfactants, such as ammonium lauryl sulfate, one or more non¬volatile silicone oils, such as a polydimethylsiloxane compound, a water-insoluble, oil-soluble di-long chain alkyl, quaternary ammonium salt conditioning agent, a long chain fatty alcohol, and an anionic polymeric suspending agent, such as a polyacrylic acid suspending agent. This art is directed to control the stability of such compositions where anionic surfactant cationic conditioning agent incompatibility arises by use of. a di-long chain alkyl quaternary ammonium salt instead of a tri-long chain alkyl quaternary ammonium salt which does not provide sufficient stability
US 4902499 provides hair care composition with high molecular rigid silicone which provides better styling and conditioning effects.
US 477037 teaches conditioning composition with low molecular weight, low viscosity, cyclic volatile silicones combined in water with a member of a specific class of cationic compounds.

Various hare care compositions are taught with silicone: US 69269000 teaches antidandruff compositions with pyridinethione salts and an insoluble conditioner combined with a specific acrylic terpolymer.wherein the insoluble conditioner includes silocones, mainly polyorganosilicones to provide conditioning effect.. US 6627184 teaches conditioning shampoo composition with surfactant, conditioning polyemer, polyalphaolefin polymer ad optionally silicone compounds for a providing better conditioning effect. US 6589519 teaches compositions with at least one polyoxyalkylenated aminosilicone and a conditioner where the conditioner is chosen from poly-.alpha.-olefins, fluoro oils, fluoro waxes, fluoro gums and carboxylic acid esters having at least 10 carbon atoms, cationic polymers, silicones that are insoluble in the medium, and mineral, plant or animal oils, and the mixtures thereof, preferably poly-.alpha.-olefins, cationic polymers and silicones that are insoluble in the medium.US 4911919 teaches straightener conditioner composition with defined alkyl quarternary ammonium compounds, defined akyl amino and amido compounds, cyclomethicones and other components to provide better body, luster and manageability to the hair. US 4818523 teaches a hair rinse conditioner composition which is easily removed from the hair, comprising the specific mixture of a dodecyl trimethyl halide, a C.sub.14 -C.sub.22 alcohol or mixture of alcohols, and a cyclic or linear silicone including cyclomethicone and dimethicone copolyol, emulsified in an aqueous medium. It provides better manageability of hair but does not allow shampoo build -up on hair. US 4886660 teaches composition which provides shiny, easy to comb, manageable hair comprising quarternery ammonium compound, cellulose polymers, mineral oils, plasticizer and optionally silicone like cyclomethicone
Dimethicone copolyol (BC 404 Dimethicome copolyol of Basidon Chemical company ltd), which is a copolymer of polydimethyl silicone and polyoxyalkylene ether is known to have profoaming properties and helps to stabilize foams when used in shampoo compositions. In "Silicone technologies as delivery sytems via physical associations", Dow Corning, the dimethicone copolyols like PEG 12 dimethicone, LAuryl PEG/PPG 18/18 methicone of Dow Corning have been shown to have no negative impact on foaming characters of shampoos with or without quaternary modified polymers. They were able to improve foam generation and resulting sensory profile providing foam boosting effects.

There continues to be a need to provide a better formulation using silicones to obtain enhanced conditioning benefits without hindering the foaming characteristics of the formulation. The problem of controlling antifoaming properties and rendering better foam have been tried to be solved in the art by inclusion of a protonated polyethyleneimine and a cationic aerylate/acrylamide copolymer, particularly Polyquaternium 32 or anionic cleansing detergents or use of a conditioning agent that is a copolymer of polyethyleneimine on a silicone polymer backbone, or silicone of smaller particle size. But there is no teaching as to how to achieve good foaming properties in a composition where the presence of silicone conditioning agents drastically reduces foaming.
The present inventors have now found that a combination -of a water insoluble non-amino silicone, an amino silicone and a water soluble non-amino silicone in combination in a surfactant based shampoo not only deliver synergistic conditioning benefits to hair but also ameliorates the foam characteristics which is reduced by use of the silicones resulting in perceived improvement in conditioning and lather properties .
Objects of the present invention
Thus the primary object of the invention is to provide a hair wash preparation that renders excellent conditioning benefits to the hair.
A further object of the invention is to provide a hair wash preparation which produces optimum foam in spite of presence of impurity cyclic organo polysiloxane and cationic emulsion of amino silicone which reduce foam characters by use of defined dimethicone copolyols which acts synergistically with other silicone components to ameliorate their antifoaming effects and provide positive foaming effects to the composition.
Another object of the invention is to provides a conditioning hair wash preparation that enhances lather characteristics thus giving improved perceived conditioning.

Statement of invention
Thus according to main aspect of the present invention there is provided a conditioning hair wash composition in aqueous medium comprising,
at least one surfactant;
an emulsified non amino insoluble silicone oil;
an emulsion of insoluble amino silicone;
an organic cationic hair conditioning polymer;
selective water soluble non amino silicone namely dimethicone copolyol.
Detailed description of the invention
The present invention contemplates a hair wash preparation that provides superior conditioning effect to hair and gives improved conditioning by way of improvement in denser and thicker lather along with sheen and luster attributes to the hair.. The hair wash preparation essentially comprises of about 5% to about 50% by weight of surfacactant, from about 0.05% to 10% by weight of water insoluble non amino silicon oil emulsion, from about 0.005% to 5%of insoluble amino silicone, from about 0.01% to 5 % by weight of selective water soluble non amino silicone namely Dimethicone Copolyol, from about 0.1 to 5% of the organic cationic hair conditioning polymer; water and optionally one or more additional material known for use in hair wash or conditioning composition.
More specifically, a non amino functionalized, highly cross linked tetrafunctional emulsion polymerized silicone is used which in-situ contain more than 0.5% cyclic organosilicone, in combination with an emulsion of aminosilicone and with a water soluble non-amino functionalized silicone such as dimethicone coplyol.
Surfactant
The composition of the invention comprises a surfactant which is selected from anionic, nonionic or amphoteric surfactants or mixtures thereof.
Suitable anionic surfactants are the alkyl sulphates, alkyl ether sulphates, alkaryl sulphonates, alkyl succinates, alkyl sulphosuccinates, N-alkoyl sarcosinates, alkyl phosphates, alkyl ether phosphates, alkyl ether carboxylates, and alpha-olefin

sulphonates, especially their sodium, magnesium, ammonium and mono-, di- and triethanolamine salts. The alkyl groups generally containing from 8 to 18 carbon atoms and may be unsaturated. The alkyl ether sulphates, alkyl ether phosphates and alkyl ether carboxylates may contain from one to 10 ethylene oxide or propylene oxide units per molecule, and preferably contain 2 to 3 ethylene oxide units per molecule.
Suitable cationic surfactants may include quaternary ammonium hydroxides, e.g.
teramethylammonium hydroxide, octyltrimethylammonium hydroxide,
dodecyltrimethylammonium hydroxide, hexadecyltrimethyl-ammonium hydroxide,
octyldimethylbenzylammonium hydroxide, decyldimethylbenxylammonium
hydroxide, didodecyldimethylammonium hydroxide, dioctadecyl dimethylammonium hydroxide, tallow trimethylammonium hydroxide, . cocotrimethylammonium hydroxide, and the corresponding salts thereof.
The nonionic surfactants suitable for use in the composition of the invention may include condensation products of aliphatic (C.sub.8 -C.sub.18) primary or secondary linear or branched chain alcohols or phenols with alkylene oxides, usually ethylene oxide and generally having from 6 to 30 ethylene oxide groups. Other suitable nonionics include mono- or di-alkyl alkanolamides. Examples include coco mono- or di-ethanolamide and coco mono-isopropanolamide.
The amphoteric surfactants suitable for use in the composition of the invention may include alkyl amine oxides, alkyl betaines, alkyl amidopropyl betaines, alkyl sulphobetaines, alkyl glycinates, alkyl carboxyglycinates, alkyl amphopropionates, alkyl amidopropyl hydroxysultaines, acyl taurates and acyl glutamates wherein the alkyl and acyl groups have from 8 to 18 carbon atoms. Examples include lauryl amine oxide, cocodimethyl sulphopropyl betaine and preferably lauryl betaine, cocamidopropyl betaine and sodium cocamphopropionate.
The surfactants are present in the shampoo composition of the invention in an amount of from 5% to about 50% by weight, preferably -8-30% by weight more preferably 10-25%-by weight

Organic cationic hair conditioning polymer
The shampoo composition of the invention may comprise a cationic conditioning agent.
Suitable cationic guar gum derivatives are those given the CTFA designation guar hydroxypropyl trimonium chloride, available commercially for example as JAGUAR C13S, which has a low degree of substitution of the cationic groups and a high viscosity. The low degree of cationic substitution leads to a cationic charge density of 0.0008. Other suitable materials include that known as JAGUAR C15, having a moderate degree of substitution and a low viscosity, JAGUAR C17 (high degree of substitution, hence cationic charge density of 0.0016, high viscosity) and JAGUAR C16 which is a hydroxypropylated cationic guar derivative containing a low level of substituent groups as well as cationic quaternary ammonium groups. JAGUAR C16 has a cationic charge density of 0.0008. Also suitable is JAGUAR 162 which is a high transparency, medium viscosity guar having a low degree of substitution.
i Other cationic conditioning agents useful in the shampoos of the present invention
include cationic polyamide polymers such as the low molecular weight adipic
acid/diethylene-triamine polyamide and the copolymers of vinylpyrrolidone and
dimethylaminoethyl methacrylate quaternised with dimethyl sulphate (Gafquat 755,
GAF Corporation); the graft cationic copolymer containing N-vinylpyrrolidone,
dimethyaminoethyl methacrylate and polyethylene glycol; the mineral acid salts of the
amino alkyl esters of homo- and copolymers of unsaturated carboxylic acids having
from 3 to 5 carbon atoms.
The high molecular weight- polymers sold under the trade mark Merquat by Merck &
Co. Inc., are cationic polymers which are also suitable for use in the present
shampoos. Representative ones are Merquat 100, a highly charged cationic
dimethyldiallylammonium chloride homopolymer, and Merquat 550, a highly charged
cationic copolymer prepared with dimethyldiallylammonium chloride and acrylamide.
These materials are designated in the CFTA dictionary as Quaternium-40 and
Quaternium-41, respectively.

Cationic surfactants such as mono-, di- and tri-alkyl quaternary ammonium salts may also be used as the cationic conditioning agent in the shampoos of the invention. Suitable examples are cetyl trimethylammonium chloride, cetyl trimethylammonium bromide and stearyltrimethylammonium chloride.
The cationic conditioning agent is preferably present in the shampoo composition of the invention in an amount of from 0.1 to 5% by weight, most preferably in an amount of from 0.2 to 3% by weight.
Emulsified non amino insoluble silicone oil
The insoluble non amino silicone component is in form of silicone fluid which may • either be a polyalkyl siloxane, a polyaryl siloxane, a polyalkylaryl siloxane and is present at a level of from about 0.1% to about 10.00% preferably from about 0.5% to about 5.0%. Mixtures of these fluids may also be used and are preferred in certain executions. The preparation of emulsion polymerized insoluble silicone oil can either be through use of linear dimethylpolysiloxane monomers or cyclic polysiloxane monomer with or without a high degree of crosslinking. Typically these silicones include Dow Corning DC 1784 and similar materials.
Emulsion of insoluble Silicone
The insoluble amino silicone component is in form of preformed cationic emulsion of silicone oil having an average amino functional silicone particle size in the shampoo composition of less than 30, preferably less than 20, more preferably less than 10 microns. Reducing the particle size generally improves conditioning performance. Most preferably the amino functional silicone particle size is less than 2 microns. Ideally it ranges from 0.01 to 1 micron. Preferably this component is present in the amount of 0.002 -5.0 % and more preferably 0.05-3% and more preferably 0.05-1.5% by weight of the composition
Generally Pre formed emulsions of silicones are supplied by Dow Corning, General Electric and Wacker Chemie. Specific examples include: DC 939 cationic emulsion, DC 929 cationic emulsion, DC 949 cationic emulsion etc.

Selective water soluble non amino silicone namely Dimethicone Copolyol
In shampoo compositions the use of dimethiconol is common. They are chemically derived from cyclic organopolysiloxanes. Thus the emulsion polymerized product contains low level of impurities of the cyclic polysiloxanes as discussed in ZA9709572. This impurity is known to suppress foaming characteristics of the shampoo composition. The formulation disclosed in this invention has successfully overcome this problem of foam suppression that can arise in case of the compositions described in US 6436383 and Indian filing application no. 142/BOM/1999, in a novel manner. Dimethicone Coplyols such as DC-193, DC5330 and water dispersible waxes DC-2501 etc. can be used in this formulation.
It was observed that addition of Dimethicone Copolyol in an preferred amount of at least 0.05%by weight of the composition significantly ameliorates the reduction of lather brought about by other silicone components of the invention and at the same time boost the lather profile and hence improved perceived conditioning. Though dimethicone colpolymer may be known to boost lather but that they could ameliorate the negative foam properties and yet provide enhanced lather attributes to the composition by presence in small amount is surprising.
Aqueous Carrier
Water is used as an aqueous carrier in this shampoo composition. The disclosed invention comprises from about 20% to about 94%, preferably from about 50% to about 94%o, more preferably from about 60% to about 85%, by weight of water.
Conventional Optional Components
The shampoo compositions of the present invention may further comprise one or more of the conventional optional components known for use in shampoo or conditioning compositions, provided that the components used are compatible with the essential component of the shampoo composition both physically and chemically. These optional components should necessarily not impair the stability, aesthetics or performance of the product.. Concentrations of such optional components typically range from about 0.001%) to about 10% by weight of the shampoo compositions.

Optional components may include anti static agents, dyes, organic solvents or diluents, pearlescent aids, foam boosters, additional surfactants or cosurfactants (nonionic, cationic, zwitterionic), pediculocides, pH adjusting agents, perfumes, preservatives, proteins, skin active agents, suspending agents, styling polymers, sunscreens, thickeners, vitamins, and viscosity adjusting agents. This list of optional components is not meant to be exclusive, and other optional components can be used.
The composition of the present invention with the essential and optional components along with the workable levels are provided in Table 1

The invention in now described by way of non limiting illustrative example. Although the invention has been described with reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternate embodiments of the invention, will becomeapparent to persons skilled in the art, upon reference to the description of the

t
invention. It is therefore contemplated that such modifications can be made without departing from the spirit or scope of the present invention as defined.
Example 1
To demonstrate the effects of dimethicone copolyol in the composition of present invention
Three formulations were designed with the composition as provided in Table 2 below:

The composition A had all components according to present invention except that it had no dimethicone copolyol while formulation B is according to the present invention.

The shampoos formulated as per Example 1 were subjected to hair tress evaluation as per ASTM procedure E2082-00-Standard Guide for descriptive analysis of shampoo performance (Sections 9.3, 9.4 and 9.5.)
The two formulations were compared on the basis of various attributes. Following are the observations of this comparative study as provided in Table 3.

From the observations in above table, we find that the formula B surprisingly shows / significant synergistic improvement in application and foam characteristics in spite of / presence of organosilioxanes.as, well as superior conditionirig*pfoperties in wet and dry hair as compared to Formula A or C .
Advantages of the invention
J 1. The primary advantage of the disclosed invention is that it gives excellent
] conditioning benefits to the hair that makes the hair manageable.

2. Another advantage of this invention is that it gives thicker and denser foam \ thus improving the conditioning I
3. Another advantage of this invention is that the combination used in the T preparation nullifies the adverse effect caused by cyclic organopolysiloxanes and cationic surfactants present in aminosilicone emulsion, which are known to suppress the lathering property of the preparation. J

• WE CLAIM
1. A conditioning hair wash composition in aqueous medium comprising,
a) at least one surfactant ranging from 5% to 50% by weight;
b) an emulsified non amino insoluble silicone oil ranging from 0.05% to 10% by weight;
c) an emulsion of insoluble amino silicone ranging from 0.002 -5.0 % by weight;
d) an organic cationic hair conditioning polymer ranging from 0.1 to 5% by weight;
e) selective water soluble non amino silicone namely dimethicone copolyol ranging from 0.01% to 5 % by weight.

2. The conditioning hair wash composition as claimed in claim 1 wherein dimethicone copolyol is present in amount preferably from 0.05% to 5% by weight of the composition.
3. The conditioning hair wash composition as claimed in claim 1 wherein said surfactant is present in amount, preferably from 8 to 30% by wt, more preferably from 10% to 25% by wt
4. The conditioning hair wash composition as claimed in claim 1 wherein emulsified non amino insoluble silicone oil is present in amount preferably from 0.1% by wt to 10.00% by wt, more preferably from 0.5% by wt to 5.0% by wt.
5. The conditioning hair wash composition as claimed in claim 1 wherein emulsion of insoluble amino silicone is present in amount preferably from 0.05-3% by wt. and more preferably 0.05-1.5% by wt.
6. The composition as claimed in claim 4 wherein insoluble non amino silicone component is in form of silicone fluid selected from polyalkyl siloxane, polyaryl siloxane, polyalkylaryl siloxane and mixtures thereof.
7. The conditioning hair wash composition as claimed in claim 5 wherein
insoluble amino silicone is in form of preformed cationic emulsion of silicone
oil having an average amino functional silicone particle size in the shampoo
composition of less than 30, preferably less than 20, more preferably less than

10 microns, preferably less than 2 microns, most preferably it ranges from 0.01 to 1 micron.
8. The conditioning composition as claimed in claim 1 wherein water in the
aqueous carrier ranges from20% to 94%, preferably from 50% to 94%, more
preferably from 60% to 85%, by weight.
9. The conditioning composition as claimed in claim 1 optionally comprising
conventional components selected from anti-static agents, dyes, organic
solvents or diluents, pearlescent aids, foam boosters, additional surfactants or
co-surfactants (nonionic, cationic, zwitterionic), pediculocides, pH adjusting
agents, perfumes, preservatives, proteins, skin active agents, suspending
agents, styling polymers, sunscreens, thickeners, vitamins, and viscosity
adjusting agents and the like.

ABSTRACT

Title : CONDITIONING HAIR WASH COMPOSITION
A conditioning hair wash composition that provides excellent foaming characteristics, cleansing and conditioning benefit. The composition provides improved conditioning by way of improvement in denser and thicker lather, as well as improved consumer benefit of gloss and shine on hair. The conditioning hair wash composition in aqueous medium comprises at least one surfactant; an emulsified non amino insoluble silicone oil; an emulsion of insoluble amino silicone; an organic cationic hair conditioning polymer; and selective water soluble non amino silicone namely dimethicone copolyol.