CN1194658C - Hair care compositions - Google Patents

Abstract

The present invention provides a hair care composition comprising: (a) a cationic carbohydrate polymer or copolymer, wherein the cationic polymer has a charge density greater than about 1.5 meq/g, preferably greater than about 1.6 meq/g, more preferably Greater than about 1.7 meq/g, even more preferably greater than about 1.8 meq/g; and (b) about less than 5%, preferably about less than 2%, more preferably about less than 1%, even more preferably 0% by weight of anionic surfactant . The compositions of the present invention impart good conditioning/shine to the hair with reduced stickiness and greasy feel.

Description

hair care composition

technical field

The present invention relates to hair care compositions. More particularly, the present invention relates to hair care compositions that provide good conditioning/shine to hair with reduced stickiness and greasy feel.

Background technique

Hair is often subjected to a variety of conditions that can cause damage. These actions include shampooing, rinsing, drying, heating, combing, styling, perming, coloring, exposure to various natural environments, etc. Consequently, hair is often left in a dry, rough, dull, or frizzy state due to abrasion of the hair surface, removal of the hair's natural oils, and other natural conditioning and moisturizing ingredients.

Various methods have been developed to alleviate the above problems. These methods include the use of ultra-mild shampoo compositions, the use of hair conditioning shampoos that attempt to cleanse and condition the hair simultaneously from a single product, and the use of hair conditioning compositions such as rinse-off products and leave-on product.

Leave-on hair care compositions provide additional benefits over other alternatives. For example, leave-on compositions are more economical and work longer because the conditioning components are left on the hair. Using such a product is more convenient for the consumer since he can use the product at any time without having to wait to rinse the product off. Furthermore, the product can be applied to those sections of hair where conditioning benefits are most needed.

Cationic polysaccharides are well known in the art to provide conditioning benefits. See, eg, WO-A-97/35542, WO-A-97/35545 and WO-A-97/35546, all of which describe the use of cationic polysaccharides in conditioning shampoo compositions. GB-A-2,211,192 describes the use of cationic polysaccharides in rinse-off conditioning compositions. DE-A-4,326,866 describes cationic polysaccharide-containing compositions for use prior to hair cutting. JP-54 138 133 describes hair product compositions containing polypeptides and cationic cellulose. However, these cationic polysaccharides are also known to cause stickiness or stickiness. This may leave the consumer with a dirty or greasy feel to the hair, especially with leave-on conditioning compositions that do not have a rinse step.

It has now surprisingly been found that cationic carbohydrate polymers and copolymers having a cationic charge density greater than about 1.5 meq/g impart improved shine/conditioning benefits to hair with reduced stickiness and greasy feel.

Without wishing to be bound by any theory, it is believed that the high cationic charge density makes the polymer more substantive to the hair, thereby providing good conditioning benefits. The cationic groups interact with the negative charges on the hair. Due to the increased frequency of occurrence of said cationic groups along the polymer, binding sites occur more frequently. More frequent interactions may "pull" the polymer backbone closer to the hair fiber, thereby reducing the depth of the hydrocarbon layer and reducing its tendency to interact with other surfaces such as the skin on the fingers. Thus, the sticky feel is reduced and the shine of the hair is increased due to the close interconnection of the polymer and the hair.

Summary of the invention

According to the present invention, there is provided a hair care composition comprising:

(a) Cationic carbohydrate polymers or copolymers, wherein the cationic polymer has a charge density greater than about 1.5 meq/g, preferably greater than about 1.6 meq/g, more preferably greater than about 1.7 meq/g, even more preferably greater than about 1.8 meq /g; and

(b) less than about 5%, preferably less than about 2%, more preferably less than about 1%, even more preferably 0% by weight of anionic surfactant.

The compositions of the present invention are less tacky and greasy while providing good conditioning/gloss benefits.

All concentrations and ratios herein are by weight of the hair care composition, unless otherwise specified.

All averages are weight averages unless otherwise stated.

Detailed description of the invention

The hair care compositions of the present invention comprise two main ingredients, cationic polymers or copolymers of carbohydrates and less than 5% of anionic surfactants. These components will be described in detail below.

The terms "tacky" and "tackiness" as used herein mean the sticky feel of the hair after application of certain hair care compositions.

As used herein, the term "leave-on" means a hair care composition intended to be used without a rinsing step. Thus, leave-on compositions will generally remain on the hair until the next time the consumer washes the hair in accordance with their cleansing routine. Leave-on compositions typically contain less than about 5% anionic surfactant, and typically contain less than 5% nonionic surfactant.

Cationic carbohydrate polymers or copolymers

An essential feature of the compositions of the invention is that they comprise cationic polymers or copolymers of carbohydrates. The cationic carbohydrates of the compositions of the present invention have a cationic charge density of greater than about 1.5 meq/g, preferably greater than about 1.6 meq/g, more preferably greater than about 1.7 meq/g, even more preferably greater than about 1.8 meq/g. Cationic polymers generally have a cationic charge density of less than about 5 meq/g, preferably less than about 3.5 meq/g, more preferably less than about 2.5 meq/g, even more preferably less than about 2.2 meq/g.

The "cationic charge density" of a polymer refers to the ratio of the number of positive charges on the monomer units constituting the polymer to the molecular weight of the monomer units, i.e.:

The cationic charge density of the cationic polymers herein can be determined using the Kjeldahl method (USP - Chemical Tests <461> Determination of Nitrogen - Method II). Those skilled in the art will recognize that the charge density of some of the polymers herein can vary depending on pH and the isoelectric point of the cationic charged groups. The charge density should be within the above range at the pH of the intended use.

The cationic carbohydrates of the present invention generally comprise from about 1% to about 10%, preferably from about 2% to about 5%, more preferably from about 2.3% to about 3%, even more preferably from about 2.5% to about 2.9%, by weight, of cationic nitrogen.

The concentration of cationic carbohydrate should be sufficient to provide the desired conditioning benefits. Such concentrations generally range from about 0.001% to about 20%, preferably from about 0.005% to about 10%, more preferably from about 0.01% to about 2%, still more preferably from about 0.05% to about 1%, by weight of the total composition.

The cationic saccharides used herein generally have an average molecular weight of from about 5,000 to about 10,000,000, preferably from about 100,000 to about 5,000,000, more preferably from about 500,000 to about 2,000,000, even more preferably from about 1,000,000 to about 1,500,000.

Cationic saccharides suitable for use in the present invention include cationic polysaccharides and cationic copolymers of saccharides, preferably cationic polysaccharides.

Cationic polymers suitable for use in the present invention are cationic carbohydrate polymers and copolymers. Cationic polysaccharides suitable for use in the present invention include those polymers based on 5 or 6 carbon sugars as well as water soluble derivatives such as those derivatized with ethylene oxide. These polymers can be linked together by any of several arrangements such as 1,4-alpha, 1,4-beta, 1,3-alpha, 1,3-beta and 1,6 linkages. The monomers can be arranged in linear or branched chain geometry.

Suitable non-limiting examples of cationic polysaccharides include those based on: cellulose and hydroxyalkyl cellulose; starch and hydroxyalkyl starch; polymers based on arabinose monomers; Polymers; polymers derived from fucose; polymers derived from fructose monomers; polymers based on acid-containing sugar monomers such as galacturonic acid and glucuronic acid; polymers based on amine sugar monomers such as galactosamine and glucosamine, especially acetylglucosamine; polymers based on 5- or 6-membered ring polyol monomers; polymers based on galactose monomers; polymers based on mannose monomers and galactose-based A polymer of mannan monomers.

Preferred cationic polymers for providing shine and conditioning benefits to hair with reduced stickiness and greasiness are cationic polymers based on cellulose, hydroxyalkylcellulose, acetylglucosamine and derivatives. More preferred are cationic polymers based on hydroxyalkylcellulose, especially cationic polymers based on hydroxyethylcellulose. Non-limiting examples of suitable cationic polymers are those polymers available from Amerchol Corp. (Edison, NJ, USA) that are salts of hydroxyethylcellulose reacted with trimethylammonium substituted epoxides, commercially available in (CTFA) called Polyquaternium-10 (Polyquatemium 10). Background information on these polymers and their methods of preparation is found in US Patent 3,472,840, issued October 14, 1969 to Stone, which is incorporated herein by reference. Other types of cationic cellulose include polymeric quaternary ammonium salts obtained by reacting hydroxyethylcellulose with lauryldimethylammonium substituted epoxides, known in the industry (CTFA) as Polyquatemium 24, available from Amerchol Corp. ( Edison, NJ, USA); Polymer quaternary ammonium salt obtained by reacting hydroxyethyl cellulose with diallyl dimethyl ammonium chloride, known as Polyquaternium 4 in industry (CTFA), obtained from National Starch (Salisbury, NC, USA).

Cationic carbohydrate copolymers suitable for use in the present invention include those containing the following carbohydrate monomers and derivatives thereof: glucose, galactose, mannose, arabinose, xylose, fucose, fructose, glucosamine, semi Lactosamine, glucuronic acid, galacturonic acid and 5- or 6-membered ring polyols. Also included are hydroxymethyl, hydroxyethyl and hydroxypropyl derivatives of the above sugars. When the sugars in the copolymer are linked to each other, they can be through any of several arrangements such as 1,4-alpha, 1,4-beta, 1,3-alpha, 1,3-beta, and 1,6 linkages combine together. Any other monomers may be used as long as the resulting polymer is suitable for use in hair care. Non-limiting examples of other monomers suitable for use herein include dimethyldiallyl ammonium chloride, dimethylaminoethyl methacrylate, diethyldiallyl ammonium chloride, N, N-diallyl-N,N-dialkylammonium halides, etc.

anionic surfactant

A second essential feature of the compositions of the present invention is that the compositions comprise less than about 5%, preferably less than about 4%, more preferably less than about 2%, even more preferably less than about 1%, even more preferably 0% by weight anionic surface active agent. The term "anionic surfactant" as used herein means anionic surfactants and zwitterionic or amphoteric surfactants, or combinations thereof, having an anionic linking group at the pH of the composition.

Examples of anionic surfactants are alkyl sulfates and alkyl ether sulfates. These materials have the general formulas _ROSO3M and RO( _C2H4O ) _{xSO3M ,} respectively, wherein _R is an alkyl or alkenyl group having from about 8 to about 30 carbon atoms and x is 1-10 Integer, M is a cation, such as ammonium, alkanolammonium (such as triethanolammonium), monovalent metal cations (such as sodium and potassium), and polyvalent metal cations (such as magnesium and calcium).

Other examples of anionic surfactants are water-soluble salts of organic sulfuric acid reaction products according to the formula [ ^R1 - _SO3 -M], wherein ^R1 is a linear or branched chain having from about 8 to about 24 carbon atoms, A saturated aliphatic hydrocarbon group, M is a cation as described above.

Other examples of anionic surfactants are reaction products of fatty acids obtained by esterification of fatty acids with isethionic acid and neutralized with sodium hydroxide, where, for example, the fatty acids are obtained from coconut oil or palm kernel oil; or taurine Sodium or potassium salts of fatty acid amides of methyl esters, wherein the fatty acid is obtained, for example, from coconut oil or palm kernel oil.

Other examples of anionic surfactants are succinates, examples of which include disodium N-octadecyl sulfosuccinate, disodium lauryl sulfosuccinate, diammonium lauryl sulfosuccinate, Sodium dipentyl sulfonate, sodium dihexyl sulfonate, and sodium dioctyl sulfonate.

Other examples of anionic surfactants include olefin sulfonates having about 10-24 carbon atoms. As used herein, the term "olefin sulfonate" refers to the sulfonation of alpha-olefins by uncomplexed sulfur trioxide followed by neutralization of the acidic reaction mixture under conditions such that any sulfonates formed in the reaction Hydrolysis of the lactone gives the corresponding hydroxyalkane sulfonate.

Another class of anionic surfactants are beta-alkoxysulfonates. The general formula of these surfactants is

Wherein, R ¹ is a linear alkyl group with about 6-20 carbon atoms, R ² is a lower alkyl group with about 1-3 carbon atoms, and M is a water-soluble cation as described above.

optional components

The hair care compositions of the present invention may further contain a number of optional ingredients. Some non-limiting examples of these optional components are given below.

silicone conditioner

The compositions of the present invention may optionally contain a silicone conditioning component. The silicone conditioning component may comprise volatile silicones, nonvolatile silicones or mixtures thereof. The term "nonvolatile" herein refers to polysiloxane materials that have little or no appreciable vapor pressure under ambient conditions, as will be readily understood by those skilled in the art. The boiling point at 1 atmosphere (atm) is preferably at least about 250°C, more preferably at least about 275°C, most preferably at least about 300°C. At 25°C or lower, the vapor pressure is preferably about 0.2 mmHg, more preferably about 0.1 mmHg.

The silicone conditioning component used herein can be silicone fluids, silicone gums, silicone resins, and mixtures thereof. References disclosing some non-limiting examples of suitable silicone hair conditioning agents and optional suspending agents for silicones include WO-A-94/08557 (Brock et al.), U.S. Patent No. 5,756,436 (Royce et al. ), U.S. Patent 5,104,646 (Bolich Jr. et al.), U.S. Patent 5,106,609 (Bolich Jr. et al.), U.S. Reissue Patent 34,584 (Grote et al.), British Patent 849,433, which are incorporated herein by reference.

Polysiloxane resin (silicone resin) is a highly cross-linked siloxane system, where cross-linking is the incorporation of trifunctional and tetrafunctional silanes into monofunctional or difunctional or monofunctional silanes during the production of polysiloxane resins. and difunctional silanes. As is known in the art, the degree of crosslinking required to form a silicone resin can vary depending on the particular silane units incorporated into the silicone resin. In general, silicone materials are considered polysiloxane resins that have enough trifunctional and tetrafunctional siloxane monomer units (and thus are sufficiently crosslinked) that they dry to rigid or hard films. The ratio of oxygen atoms to silicon atoms is indicative of the level of crosslinking in a particular silicone material. Silicone materials having a ratio of oxygen atoms to silicon atoms of at least about 1.1 will generally be the silicone resins of the present invention. Preferably, the ratio of oxygen atoms to silicon atoms is at least about 1.2:1.0. Silanes used in the production of polysiloxane resins include monomethyl, dimethyl, trimethyl, monophenyl, diphenyl, methylphenyl, ethylphenyl, propylphenyl, monovinyl and Methylvinylchlorosilane and tetrachlorosilane.

Silicone resins, if present, generally comprise from about 0.001% to about 10%, preferably from about 0.005% to about 5%, more preferably from about 0.01% to about 2%, even more preferably from about 0.1% to about 10%, by weight of the entire composition. about 1%.

Any polysiloxane resin suitable for use in hair care compositions can be used in the present invention, including those containing hydrogen, hydroxyl, alkyl, aryl, alkoxy, alkaryl, aralkyl, aralkoxy, alkane Those with aryloxy and alkylamino substituents. However, preferred polysiloxane resins have at least one substituent with delocalized electrons. The substituent may be selected from alkyl, aryl, alkoxy, alkaryl, aralkyl, aralkoxy, alkaryloxy, and combinations thereof. Aryl, aralkyl and alkaryl substituents are preferred. Aralkyl and alkaryl substituents are more preferred. Further preferred are alkaryl substituents, especially 2-phenylpropyl. Although it is preferred that at least one of the substituents has delocalized electrons, the resins herein typically also have other substituents that do not have delocalized electrons. Such other substituents may include hydrogen, hydroxy, alkyl, alkoxy, amino functional groups and mixtures thereof. Preferred are alkyl substituents, especially methyl substituents.

The term "aryl" as used herein means a functional group containing one or more homocyclic or heterocyclic rings. The aryl functional groups herein may be unsubstituted or substituted and generally contain 3 to 16 carbon atoms. Preferred aryl groups include, but are not limited to, phenyl, naphthyl, cyclopentadienyl, anthracenyl, pyrene, pyridine, and pyrimidine.

The term "alkyl" as used herein means a saturated or unsaturated, substituted or unsubstituted, linear or branched hydrocarbon having 1 to 10 carbon atoms, preferably 1 to 4 carbon atoms. Thus, the term "alkyl" includes alkenyl groups having 2 to 8 carbon atoms, preferably 2 to 4 carbon atoms, and alkynyl groups having 2 to 8 carbon atoms, preferably 2 to 4 carbon atoms. Preferred alkyl groups include, but are not limited to, methyl, ethyl, propyl, isopropyl and butyl. More preferred are methyl, ethyl and propyl.

As used herein, the term "alkaryl" means a substituent comprising an alkyl moiety and an aryl moiety, wherein the alkyl moiety is attached to the silicone resin.

As used herein, the term "aralkyl" means a substituent comprising an aryl moiety and an alkyl moiety, wherein the aryl moiety is attached to the silicone resin.

Silicone materials, particularly silicone resins, are conveniently identified by the "MDTQ" nomenclature, a system of shorthand nomenclature well known to those skilled in the art. In this system, polysiloxanes are described in terms of the presence of the various siloxane monomer units that make up the polysiloxane. In short, the symbol M represents the monofunctional unit (CH ₃ ) ₃ SiO _0.5 ; D represents the difunctional unit (CH ₃ ) ₂ SiO; T represents the trifunctional unit (CH ₃ ) SiO _1.5 ; Q represents the tetrafunctional unit SiO ₂ . The prime marks in the unit symbols such as M', D', T', Q' represent one or more substituents other than methyl, which need to be specifically defined each time. Thus, preferred polysiloxane resins for use herein have at least one M', D', T', Q' functional group having one substituent with delocalized electrons. Preferred substituents are as defined above. In the MDTQ system, the molar ratio of various units is either indicated by the subscript of the symbol to indicate the total number (or average) of each type of unit in the polysiloxane, or expressed by a specific ratio and combined with molecular weight, so as to complete Description of the polysiloxane substance.

The polysiloxane resins used in the present invention are preferably MQ and M'Q resins, more preferably M'Q resins, especially M' ₆ Q ₃ , M' ₈ Q ₄ , M' ₁₀ Q ₅ , M' ₁₂ Q ₆ Resins and mixtures thereof. Preferred M'Q resins are those having at least one delocalized electron-containing group substituted on each M' functional group. It is more preferred that the other substituents in the resin are alkyl groups, especially methyl groups.

The polysiloxane resins used herein preferably have a viscosity at 25°C of less than about 5000 mm ² s ^-1 , more preferably less than about 2000 mm ² s ^-1 , still more preferably less than about 1000 mm ² s ^-1 , still more preferably less than about 600 mm ² s ^-1 . Viscosity can be measured by a Cannon-Fenske Routine Viscometer (ASTM D-445).

Background information on silicone resins suitable for use herein, including detailed descriptions of their methods of preparation, can be found in US Patent Nos. 5,539,137, 5,672,338, 5,686,547 and 5,684,112, which are incorporated herein by reference.

The silicone fluids useful in the compositions of the present invention include silicone oils having a viscosity at 25°C of less than 1,000,000 mm ² s ^-1 , preferably about 5- 1,000,000 mm ² s ^-1 , more preferably about 10-600,000 mm ² s ^-1 , more preferably about 10-500,000 mm ² s ^-1 , most preferably about 10-350,000 mm ² s ^-1 Silicone substance. The viscosity can be measured by a glass capillary viscometer as described in Dow Corning Corporate Test Method CTM0004, July 20, 1970. Suitable silicone oils include polyalkylsiloxanes, polyarylsiloxanes, polyarylalkylsiloxanes, polyalkylarylsiloxanes, polyethersiloxane copolymers, and mixtures thereof. Other insoluble, nonvolatile silicone fluids having conditioning properties can also be used.

The silicone oils used in the present compositions include polyalkyl or polyaryl siloxanes according to the formula:

wherein R is aliphatic, preferably alkyl or alkenyl or aryl, R may be substituted or unsubstituted, and x is an integer from about 1 to about 8000. Suitable unsubstituted R groups include alkoxy, aryloxy, alkaryl, aralkyl, alkylamino, and ether-, hydroxy-, and halogen-substituted aliphatic and aryl groups. Suitable R groups also include cationic amine and quaternary ammonium groups.

The aliphatic or aryl groups substituted on the silicone chain can be of any structure so long as the resulting polysiloxane remains fluid at room temperature, is hydrophobic, and is not irritating, toxic, or harmful when applied to the hair , are compatible with the other ingredients of the hair care compositions described herein, are chemically stable under normal conditions of use and storage, are insoluble in the compositions of the present invention and are capable of conditioning the hair.

The two R groups on the silicon atom of each monomeric polysiloxane unit can be the same or different groups. Preferably the two R groups represent the same group.

Preferred alkyl and alkenyl substituents are C ₁ -C ₅ alkyl and alkenyl, more preferably C ₁ -C ₄ alkyl and alkenyl, most preferably C ₁ -C ₂ alkyl and chain Alkenyl. The aliphatic moiety of other alkyl-, alkenyl- or alkynyl-containing groups (such as alkoxy, alkaryl and alkylamino) may be straight-chain or branched, preferably having 1 to 5 carbon atoms , more preferably have 1 to 4 carbon atoms, still more preferably have 1 to 3 carbon atoms, most preferably have 1 to 2 carbon atoms. As previously discussed, the R substituents herein can also contain amino functionality, such as an alkylamino group, which can be a primary, secondary, tertiary amine or quaternary ammonium. These include mono-, di- and tri-alkylamino and alkoxyamino groups, wherein the chain length of the aliphatic moiety is preferably as described above. The R substituents may also be substituted with other groups such as halogens (eg, chlorine, fluorine, and bromine), halogenated aliphatic groups, or aryl and hydroxyl groups (eg, hydroxyl-substituted aliphatic groups). Suitable halogenated R groups may include, for example, trihalo (preferably fluorinated) alkyl, such as -R ¹ -C(F) ₃ , wherein R ¹ is C ₁ -C ₃ alkyl. Examples of such silicones include polymethyl-3,3,3-trifluoropropylsiloxane.

Suitable R groups include methyl, ethyl, propyl, phenyl, methylphenyl and phenylmethyl. Preferred polysiloxanes are polydimethylsiloxane, polydiethylsiloxane and polymethylphenylsiloxane. Polydimethylsiloxane is particularly preferred. Other suitable R groups include methyl, methoxy, ethoxy, propoxy and aryloxy. The three R groups end-capped by polysiloxane can also represent the same or different groups.

Nonvolatile polyalkylsiloxane fluids which may be used include, for example, polydimethylsiloxanes. These siloxanes are available, for example, from the General Electric Company in their Viscasil R and SF 96 series, and from Dow Corning in their Dow Corning 200 series.

Polyalkylaryl siloxane fluids which may be used also include, for example, polymethylphenyl siloxanes. These siloxanes are available, for example, from General Electric Company as SF 1075 Methylphenyl Fluid or from Dow Corning as 556 Cosmetic Grade Fluid.

Polyether siloxane copolymers that can be used include, for example, polypropylene oxide modified polydimethylsiloxane (such as Dow Corning DC-1248), although ethylene oxide or ethylene oxide and epoxy can also be used. Propane mixture. For insoluble polysiloxanes, the amount of ethylene oxide and propylene oxide should be low enough to prevent solubility in water and in the compositions herein.

Other suitable silicone fluids for use in silicone conditioners are insoluble silicone gums. These gums are polyorganosiloxane materials having a viscosity at 25°C of greater than or equal to 1,000,000 centistokes. Silicone gums are described in US Patent 4,152,416; Noll and Walter, Chemistry and Technology of Silicones , New York: Academic Press 1968 and General Electric Silicone Rubber Product DataSheets SE 30, SE 33, SE 54 and SE 76, all of which are incorporated herein by reference. Silicone gums generally have a mass molecular weight in excess of about 200,000, usually between about 200,000 and about 1,000,000, specific examples of which include polydimethylsiloxane, (polydimethylsiloxane) ( Methylvinylsiloxane) copolymer, poly(dimethylsiloxane)(diphenylsiloxane)(methylvinylsiloxane) copolymer and mixtures thereof.

Silicone conditioning agents may also comprise dimethicone gums (viscosities greater than about 1,000,000 centistokes) and dimethicone oils (viscosities between about 10 and about 100,000 centistokes), wherein The ratio of size to fluid is from about 30:70 to about 70:30, preferably from about 40:60 to about 60:40.

The number average particle size of the optional polysiloxane component can vary within wide ranges without limitation, depending on the formulation and/or desired properties. Preferred number average particle sizes for use in the present invention generally range from about 10 nanometers to about 100 micrometers, more preferably from about 30 nanometers to about 20 micrometers.

Background information on polysiloxanes, including sections discussing polysiloxane fluids, compounds, and resins, and methods of making polysiloxanes, can be found in the Encyclopaedia of Polymer Science and Engineering (page 15 Vol. 2, pp. 204-308, John Wiley & Sons, Incorporated, 1989), which is incorporated herein by reference.

From the standpoint of improving gloss, the preferred silicone conditioning agents are silicone resins.

cationic conditioner

The compositions of the present invention may also comprise one or more additional cationic polymer conditioning agents. The cationic polymer conditioning agents are preferably water soluble. The total amount of cationic polymer in the compositions of the present invention is generally from about 0.001% to about 20% by weight, more usually from about 0.005% to about 10% by weight, preferably from about 0.01% to about 2% by weight.

"Water-soluble" cationic polymer refers to a polymer that is sufficiently soluble in water at 25°C at a concentration of 0.1% in water (distilled or equivalent) to form a substantially clear solution to the naked eye. Preferably, the polymer is sufficiently soluble to form a substantially clear solution at a concentration of 0.5%, more preferably a substantially clear solution is formed at a concentration of 1.0%.

As used herein, the term "polymer" shall include materials obtained by the polymerization of one type of monomer or by the polymerization of two (ie, copolymers) or more types of monomers.

The cationic polymers of the present invention generally have a weight average molecular weight of at least about 5,000, usually at least about 10,000, and less than about 10,000,000. Preferably, the molecular weight is from about 100,000 to about 2,000,000. Cationic polymers generally have cationic nitrogen-containing moieties such as quaternary ammonium or cationic amino moieties and mixtures thereof.

The cationic charge density is preferably at least about 0.1 meq/g, more preferably at least about 0.5 meq/g, more preferably at least about 1.1 meq/g, even more preferably at least about 1.2 meq/g. For practical purposes, the cationic polymer has a cationic charge density of less than about 7 meq/g, preferably less than about 5 meq/g, more preferably less than about 3.5 meq/g, most preferably less than about 2.5 meq/g. The cationic charge density of cationic polymers can be determined using the Kjeldahl method (USP - Chemical Tests - <461> Nitrogen Determination - Method II). Those of ordinary skill in the art will recognize that the charge density of amino group-containing polymers can vary with pH and the isoelectric point of the amino groups. The charge density should be within the above range at the pH of the intended use.

Cationic polymers can use any anionic counterion as long as they meet the water solubility criteria. Suitable counterions include halides (eg chlorine, bromine, iodine or fluorine, preferably chlorine, bromine or iodine), sulfate, methylsulfate. Other counterions may also be used, as the above list is non-exclusive.

The cationic nitrogen-containing moieties are generally present as substituents on a portion of the overall monomeric units of the cationic hair conditioning polymer. Thus, cationic polymers may comprise copolymers, terpolymers, etc. of quaternary ammonium or cationic amine substituted monomer units and other non-cationic units referred to herein as spacer monomer units. Such polymers are well known in the art and are described in CTFA International Cosmetic Ingredient Dictionary and Handbook , 7th Edition, edited by Wenninger and McEwen (The Cosmetic, Toiletry and Fragrance Association, Inc., Various polymers can be found in Washington, DC, 1997).

Suitable cationic polymers include, for example, vinyl monomers having cationic amine or quaternary ammonium functionality with water soluble spacer monomers such as acrylamides, methacrylamides, alkyl and dialkyl acrylamides, alkyl and dioxane Copolymers of methacrylamide, alkyl acrylate, alkyl methacrylate, vinylcaprolactone and vinylpyrrolidone. Alkyl and dialkyl substituted monomers preferably have C ₁ -C ₇ alkyl groups, more preferably C ₁ -C ₃ alkyl groups. Other suitable spacer monomers include vinyl esters, vinyl alcohol (prepared by hydrolysis of polyvinyl acetate), maleic anhydride, propylene glycol, and ethylene glycol.

Depending on the particular species and pH of the composition, the cationic amines can be primary, secondary or tertiary. Secondary and tertiary amines are generally preferred, especially tertiary amines.

Amine substituted vinyl monomers can be polymerized in the amine form and then optionally can be converted to the ammonium salt by quaternization. Amines can also be similarly quaternized prior to polymer formation. For example, tertiary amine functionality can be quaternized by reaction with a salt of the general formula R'X, where R' is a short chain alkyl group, preferably a C ₁ -C ₇ alkyl group, more preferably is a C ₁ -C ₃ alkyl group, and X is an anion that forms a water-soluble salt with a quaternary ammonium.

Suitable cationic amino and quaternary ammonium monomers include, for example, vinyl compounds substituted with dialkylaminoalkyl acrylates, dialkylaminoalkyl methacrylates, monoalkyl acrylates Aminoalkyl esters, monoalkylaminoalkyl methacrylates, trialkylmethacryloyloxyalkylammonium salts, trialkylacryloyloxyalkylammonium salts, diallyl quaternary ammonium salts and Vinyl quaternary ammonium monomers having cyclic cationic nitrogen-containing rings such as pyridinium, imidazolium and quaternized pyrrolidones, such as alkylvinylimidazoliums, alkylvinylpyridiniums and alkylvinylpyrrolidones. The alkyl moieties of these monomers are preferably lower alkyls such as C ₁ -C ₃ alkyls, more preferably C ₁ and C ₂ alkyls. Amine substituted vinyl monomers suitable for use in the present invention include dialkylaminoalkyl acrylates, dialkylaminoalkyl methacrylates, dialkylaminoalkylacrylamides, dialkylaminoalkylmethyl Acrylamide, wherein the alkyl group is preferably a C ₁ -C ₇ hydrocarbon group, more preferably a C ₁ -C ₃ alkyl group.

The cationic polymers of the present invention may comprise mixtures of monomer units derived from amine- and/or quaternary ammonium-substituted monomers and/or compatible spacer monomers.

Suitable cationic hair conditioning polymers include, for example: copolymers of 1-vinyl-2-pyrrolidone and 1-vinyl-3-methylimidazolium salts (e.g. chloride salts) (known in the industry (CTFA) as Polyquaternium -16) such as those available from BASF Wyandott Corp. (Parsippany, NJ, USA) under the trade name LUVIQUAT (e.g. LUVIQUAT FC 370); combination of 1-vinyl-2-pyrrolidone with dimethylaminoethyl methacrylate Copolymers (known in the industry (CTFA) as Polyquaternium-11), such as those available from GAF Corporation (Wayne, NJ, USA) under the trade name GAFQUAT (eg, GAFQUAT 755N); polymerization of cationic diallyl quaternary ammonium compounds, including, for example, dimethyldiallylammonium chloride homopolymer and copolymers of acrylamide and dimethyldiallylammonium chloride, known in the industry (CTFA) as Polyquaternium 6 and Polyquaternium 6, respectively 7; and inorganic acid salts of amino-alkyl esters of homopolymers and copolymers of unsaturated carboxylic acids having 3 to 5 carbon atoms, as described in US Patent 4,009,256, incorporated herein by reference.

As discussed above, the cationic polymers of the present invention are water soluble. However, this does not mean that it has to be dissolved in the composition. Preferably, however, the cationic polymer is dissolved either in the composition or in a complex coacervate phase in the composition formed by the cationic polymer and the anionic species. Anionic surfactants or anionic polymers, optionally added to the compositions of the present invention, may be used to form complex coacervate phases of cationic polymers.

Sensate

The hair care compositions of the present invention may also contain a sensate. The term "sensate" as used herein means a substance which, when applied to the hair, causes a perceived sensation of a change in condition, such as, but not limited to, heat, coolness, refreshment, and the like.

Sensates are preferably used at levels of from about 0.001% to about 10%, more preferably from about 0.005% to about 5%, most preferably from about 0.01% to about 1%, by weight of the total composition.

Any sensate suitable for use in hair care compositions can be used herein. Non-limiting exemplary lists of suitable sensates can be found in GB-B-1315626, GB-B-1404596 and GB-B-1411785, which are incorporated herein by reference. Preferred sensates for use in the compositions of the present invention are camphor, menthol, 1-isogerumenthol, ethylmenthane carboxamide and trimethylisopropylbutanamide.

C ₁ -C ₆ aliphatic alcohol

The composition of the invention may optionally comprise a C ₁ -C ₆ , preferably a C ₂ -C ₃ , more preferably a C ₂ aliphatic alcohol. Aliphatic alcohols generally comprise from about 1% to about 75%, preferably from about 10% to about 40%, more preferably from about 15% to about 30%, still more preferably from about 18% to about 26%, by weight of the total composition.

viscosity modifier

The compositions of the present invention may also contain viscosity modifiers. Any viscosity modifier suitable for use in hair care compositions can be used herein. Generally, if present, viscosity modifiers generally comprise from about 0.01% to about 10%, more preferably from about 0.05% to about 5%, most preferably from about 0.1% to about 3%, by weight of the total composition. Non-limiting examples of suitable viscosity modifiers can be found in CTFA International Cosmetic Ingredient Dictionary and Handbook (CTFA International Cosmetic Ingredient Dictionary and Handbook), 7th Edition, edited by Wenninger and McEwen (The Cosmetic, Toiletry and Fragrance Association, Inc. , Washington, DC, 1997), which is incorporated herein by reference.

Viscosity modifiers suitable for use in the present invention include shear sensitive viscosity modifiers. As used herein, the term "shear-sensitive viscosity modifier" means a viscosity modifier that can form a composition whose viscosity decreases at low shear rates. Shear rate (sec ^-1 ) can be defined as the ratio of the velocity of a substance (m/sec) to its distance (m) from a stationary object. Shear rates of less than about 250 sec ^-1 are considered "low shear rates." Any shear-sensitive viscosity modifier suitable for use in the care of hair can be used herein. However, preferred for use in the present invention are viscosity modifiers that form compositions having reduced viscosity at shear rates of less than about 100 sec ^-1 , more preferably less than 50 sec ^-1 . Additionally, preferred ^shear -sensitive viscosity modifiers are those that can form compositions having a viscosity reduction of greater than about 30%, preferably Greater than about 50%, more preferably greater than about 70%, even more preferably greater than about 80%.

Preferred viscosity modifiers for use in the present invention are those that can form compositions whose viscosity is also sensitive to the electrolyte concentration in the aqueous phase, hereinafter referred to as "salt-sensitive viscosity modifiers"". Background information on salt-sensitive viscosity modifiers can be found in American Chemical Society Symposium Series (1991), Vol. 462, pp. 101-120, which is incorporated herein by reference. Any salt-sensitive viscosity modifier suitable for use in hair care compositions can be used herein.

Examples of suitable viscosity modifiers include, but are not limited to: synthetic hectorite, carboxylic acid anionic polymers/copolymers, and carboxylic acid anionic crosslinked polymers/copolymers. Preferred for use herein are carboxylic acid anionically crosslinked polymers/copolymers. More preferred are carboxylic acid anionically crosslinked copolymers.

Synthetic hectorites useful in the present invention are synthetic layered silicates such as sodium magnesium silicate. Examples of suitable synthetic hectorites include those commercially available under the trade name Laponite from Laporte Plc., UK.

The carboxylic acid anionic copolymer used in the present invention may be a hydrophobically modified cross-linked copolymer of carboxylic acid and alkyl carboxylate, which is amphiphilic. These carboxylic acid anionic copolymers are obtained by copolymerizing: 1) carboxylic acid monomers such as acrylic acid, methacrylic acid, maleic acid, maleic anhydride, itaconic acid, fumaric acid , crotonic acid or alpha-chloroacrylic acid, 2) carboxylate esters having an alkyl chain of 1 to about 30 carbon atoms, and preferably 3) a crosslinking agent having the general formula:

或

其中R²是氢或具有约1至约30个碳原子的烷基；Y²选自(CH₂)m″、(CH₂CH₂O)m″或(CH₂CH₂CH₂O)m″，其中m″是1至约30的整数。wherein R ¹ is hydrogen or an alkyl group having from about 1 to about 30 carbon atoms; Y ¹ is independently oxygen, CH ₂ O, COO, OCO,

or

wherein ^R2 is hydrogen or _an alkyl group having from about 1 to about 30 carbon atoms _; ^Y2 is selected from ( _CH2 )m", ( _CH2CH2O )m" or ( _CH2CH2CH2O ) _m ", wherein m" is an integer from 1 to about 30.

Anionic carboxylic acid copolymers suitable for use in the present invention are acrylic acid/alkyl acrylate copolymers having the general formula:

wherein ^R2 is independently hydrogen or an alkyl group having from about 1 to about 30 carbon atoms, wherein at least one ^R2 is hydrogen, ^R1 is as defined above, n, n', m and m' are integers, wherein n +n'+m+m' is from about 40 to about 100, n" is an integer from 1 to about 30, and P is defined such that the molecular weight of the copolymer is from about 5,000 to about 3,000,000.

A neutralizing agent may be added to neutralize the anionic carboxylic acid copolymers of the present invention. Non-limiting examples of such neutralizing agents include sodium hydroxide, potassium hydroxide, ammonium hydroxide, monoethanolamine, diethanolamine, triethanolamine, diisopropanolamine, aminomethylpropanol, tromethamine , Tetrahydroxypropylethylenediamine and mixtures thereof.

Nonlimiting examples of suitable carboxylic acid anionic viscosity modifiers, including details of their methods of preparation, can be found in US Patent Nos. 3,940,351, 5,288,814, 5,349,030, 5373,044, and 5,468,797, which patents are incorporated herein by reference. Examples of carboxylic acid anionic viscosity modifiers include Carbopol ETD-2020, Carbopol ETD-2050 and Carbopol Ultrez 10 available from B.F. of those. Carbopol ETD-2020, Carbopol ETD-2050 and Carbopol Ultrez 10 are preferred, especially Carbopol Ultrez 10.

Particularly preferred viscosity modifiers for use in the present invention from the standpoint of improved spreadability, reduced tack and improved gloss are carboxylic acid anionic viscosity modifiers such as Carbopol Ultrez 10.

Polyethylene glycol derivatives of glycerides

Suitable polyethylene glycol derivatives of glycerides include polyethylene glycol derivatives of any glycerides which are water soluble and suitable for use in hair care compositions. Polyethylene glycol derivatives of glycerides suitable for use in the present invention include derivatives of monoglycerides, diglycerides and triglycerides, and mixtures thereof.

One class of polyethylene glycol derivatives of glycerides suitable for use in the present invention are those polyethylene glycol derivatives of glycerides conforming to the following general formula I:

Wherein, n, the degree of ethoxylation, is from about 4 to about 200, preferably from about 5 to about 150, more preferably from about 20 to about 120, and wherein R comprises from about 5 to about 25 carbon atoms, preferably from about 7 to about 120 An aliphatic group of about 20 carbon atoms.

A suitable polyethylene glycol derivative of glyceride may be a polyethylene glycol derivative of hydrogenated castor oil. For example, PEG-20 hydrogenated castor oil, PEG-30 hydrogenated castor oil, PEG-40 hydrogenated castor oil, PEG-45 hydrogenated castor oil, PEG-50 hydrogenated castor oil, PEG-54 hydrogenated castor oil, PEG-55 hydrogenated castor oil, PEG-60 hydrogenated castor oil, PEG-80 hydrogenated castor oil, and PEG-100 hydrogenated castor oil. Preferred for use in the compositions of the present invention is PEG-60 hydrogenated castor oil.

Other suitable polyethylene glycol derivatives of glycerides may be polyethylene glycol derivatives of stearic acid. For example, PEG-30 stearate, PEG-40 stearate, PEG-50 stearate, PEG-75 stearate, PEG-90 stearate, PEG-100 stearate, PEG-120 Stearate and PEG-150 Stearate. Preferred for use in the present invention is PEG-100 stearate.

cationic surfactant

The cationic surfactants used in the compositions of the present invention contain amino or quaternary ammonium moieties. Cationic surfactants are preferably, but not necessarily, insoluble in the compositions of the present invention. Some of those cationic surfactants useful in the present invention are disclosed in the following documents, MC Publishing Co., McCutcheon's, Detergents & Emulsifiers (Surfactants and Emulsifiers) , (North America Schwartz et al., Surface Active Agents, Their Chemistry and Technology (surfactant, its chemical properties and technology ), New York: Interscience Publishers, 1949; U.S. Patent 3,155,591 issued November 3, 1964 to Hilfer; US Patent 3,929,678 issued December 30, 1975 to Laughlin et al; US Patent 3,959,461 issued May 25, 1976 to Bailey et al; and US Patent 4,387,090 issued June 7, 1983 to Bolich, Jr.

The quaternary amine-containing cationic surfactant materials useful herein are those cationic surfactants having the general formula:

Wherein, R ₁ -R ₄ are independently selected from aliphatic groups having about 1 to about 22 carbon atoms or aryl groups, alkoxy groups, polyoxyalkylene groups, alkane groups having about 1 to about 22 carbon atoms Amido, hydroxyalkyl, aryl or alkaryl; X is a salt-forming anion, such as selected from halide (such as chloride, bromide), acetate, citrate, lactate, glycolate, Phosphates, Nitrates, Sulfates and Alkyl Sulfates. Aliphatic groups may contain, in addition to carbon and hydrogen atoms, ether linkages and other groups such as amino groups. Long-chain aliphatic groups, such as those of about 12 carbon atoms or more, can be saturated or unsaturated. Particularly preferred are mono-long chain (such as mono C ₁₂ -C ₂₂ , preferably mono C ₁₂ -C ₁₈ , more preferably mono C ₁₆ aliphatic, preferably alkyl), di-short chain (such as C ₁ - C ₃ alkyl, preferably C ₁ -C ₂ alkyl) quaternary ammonium salts.

Salts of primary, secondary and tertiary fatty amines are also suitable cationic surfactant materials. The alkyl groups of such amines preferably have from about 12 to about 22 carbon atoms and may be substituted or unsubstituted. Such amines as used herein include stearamidopropyldimethylamine, diethylaminoethylstearamide, dimethylstearylamine, dimethylsoyamine, soyamine, myristylamine, tridecane N-tallowamine, ethylstearylamine, N-tallowpropanediamine, ethoxylated (with 5 moles of ethylene oxide) stearylamine, dihydroxyethylstearylamine, and arachidylbehenylamine amine. Suitable amine salts include halogens, acetates, phosphates, nitrates, citrates, lactates and alkyl sulfates. Such salts include stearylamine hydrochloride, soyamine chloride, stearylamine formate, N-tallow propylenediamine dichloride, stearamidopropyldimethylamine citrate, cetyltrimethylammonium chloride and bis(cetyl)di(methyl)ammonium chloride. Preferred for use in the compositions of the present invention is cetyltrimethylammonium chloride. Cationic amine surfactants included among those useful in the present invention are disclosed in US Patent 4,275,055, Nachtigal et al., issued June 23, 1981, which is incorporated herein by reference.

Cationic surfactants are preferably used at levels of from about 0.1% to about 10%, more preferably from about 0.25% to about 5%, most preferably from about 0.3% to about 0.7%, by weight of the composition.

fatty alcohol

The hair care compositions of the present invention may also contain fatty alcohols. Any fatty alcohol suitable for use in hair care can be used herein. However, preferred are C ₈ -C ₂₂ , more preferred are C ₁₂ -C ₁₈ , further preferred are C ₁₆ fatty alcohols.

Fatty alcohol is preferably used in an amount of from about 0.1% to about 20%, more preferably from about 0.25% to about 10%, most preferably from about 0.5% to about 5%, by weight of the composition.

If both a fatty alcohol and a cationic surfactant are present, the ratio of the fatty alcohol to the surfactant is from about 3:1 to about 6:1, more preferably 4:1.

water

The compositions of the present invention typically also comprise water. When present in the composition, water generally comprises from about 25% to about 99%, preferably from about 50% to about 98%, more preferably from about 65% to about 95%, by weight of the total composition.

additional components

The compositions of the present invention may contain a variety of other optional components suitable for making such compositions more cosmetically or aesthetically acceptable as well as providing additional in-use benefits to the compositions. Such conventional optional ingredients are well known to those of ordinary skill in the art.

A variety of additional ingredients can be formulated into the compositions of the present invention. These additional ingredients include: other hair conditioning ingredients such as panthenol, panthetine, pantotheine, panthenyl ethyl ether, and combinations thereof; other solvents such as hexylene glycol; hair retention polymers such as those described in WO-A-94/08557, which document is incorporated herein by reference; detersive surfactants such as anionic, nonionic, amphoteric and zwitterionic surfactants; additional viscosity modifiers and Suspending agents such as xanthan gum, guar gum, hydroxyethylcellulose, triethanolamine, methylcellulose, starch and starch derivatives; viscosity modifiers such as methanolamides of long-chain fatty acids such as coconut monoethanolamide; crystal suspensions agent; pearlescent additives such as ethylene glycol distearate; opacifiers such as polystyrene; preservatives such as phenoxyethanol, benzyl alcohol, methylparaben, propylparaben, imidazolidinyl Urea and hydantoin; polyvinyl alcohol; ethanol; pH adjusters such as lactic acid, citric acid, sodium citrate, succinic acid, phosphoric acid, sodium hydroxide, sodium carbonate; salts, generally such as potassium acetate and sodium chloride; colorants hair oxidizing (bleaching) agents such as hydrogen peroxide, perborates, and persulfates; hair reducing agents such as thioglycolates; fragrances; Sodium; anti-dandruff agents such as zinc pyrithione (ZPT), sulfur, selenium sulfide, coal tar, piroctone olamine, ketoconazole, pimidone, and salicylic acid; Oxidizers/UV filters such as octyl methoxycinnamate, benzophenone-3 and DL-alpha tocopheryl acetate and polymeric plasticizers such as glycerin, diisobutyl adipate, butyl stearate esters and propylene glycol. Typically these optional ingredients are each used at a level of from about 0.001% to about 10.0%, preferably from about 0.01% to about 5.0%, by weight of the composition.

product form

The compositions of the present invention may be formulated into a variety of product forms including, but not limited to, creams, gels, aerosol or non-aerosol foams, mousses, and hairsprays. Mousses, foams and hairsprays can be formulated with propellants such as propane, butane, Pentane, dimethyl ether, hydrofluorocarbons, carbon dioxide and nitrous oxide.

Instructions

Human hair is treated using the hair care compositions of the present invention in conventional manner. An effective amount of the composition, usually about 1-50 grams, preferably about 1-20 grams of the composition, is applied to the hair. Application of the composition generally involves working the composition throughout the hair, usually with hands and fingers or with a suitable implement such as a comb or brush. The composition is then left on the hair, usually until the next time the consumer washes the hair.

A preferred method of treating hair comprises the following steps:

(a) applying an effective amount of a hair care composition to wet, damp or dry hair,

(b) Apply the composition throughout the hair with hands and fingers or with a suitable implement.

The method may optionally include the further step of rinsing the hair with water.

Example

The following examples further illustrate and demonstrate preferred embodiments within the scope of the present invention. These examples are only to illustrate the present invention, not to limit the present invention, because many changes can be made without departing from the spirit and scope of the present invention. All ingredients are expressed in weight percent active ingredient.

Embodiment I (% by weight) I (hairspray) water Appropriate amount Cationic polymer of hydroxyethyl cellulose ¹ 0.075 trisodium citrate 0.70 PEG 60 hydrogenated castor oil ² 0.80 lactic acid 0.10 Phenoxyethanol 0.20 CI 42045 (Acid Blue 1) 0.0001 spices 0.1

1) A polymer having a charge density of 1.93 meq/g and a weight average molar molecular weight of 1,250,000, available from Amerchol.

2) Cremophor RH-60 supplied by BASF.

The cationic polymer and trisodium citrate were added to the water and stirred thoroughly at ambient temperature until a homogeneous solution was obtained. All other ingredients are then mixed together and added to the above homogeneous solution. The resulting solution was then stirred until homogeneous.

Example II (% by weight) II (mousse) water Appropriate amount Cationic polymer of hydroxyethyl cellulose ¹ 0.30 trisodium citrate 0.10 PEG 60 hydrogenated castor oil ² 0.10 CAPB ³ 0.30 lactic acid 0.02 Phenoxyethanol 0.30 spices 0.25

1) A polymer having a charge density of 1.93 meq/g and a weight average molar molecular weight of 1,250,000, available from Amerchol.

2) Cremophor RH-60 supplied by BASF.

3) Tegobetaine F supplied by Goldschmidt.

The cationic polymer and trisodium citrate were added to the water and stirred thoroughly at ambient temperature until a homogeneous solution was obtained. All other ingredients are then mixed together and added to the above homogeneous solution. The resulting solution was then stirred until homogeneous. The resulting product is then packaged in pressurized aerosol containers containing a volatile propellant (eg propane, butane, etc.) at a fill ratio of 10-15 parts concentrate to 1 part propellant.

Example III-IV (% by weight) III (Cream) IV (Cream) water Appropriate amount Appropriate amount - Carbomer ¹ 1.00 - A Acrylates/C _10-30 Alkyl Acrylate Crosspolymer ² - 0.60 A Cationic polymer of hydroxyethyl cellulose ¹¹ 1.00 0.10 B Methylparaben 0.08 - C Propylparaben 0.04 - C cetyl alcohol ³ 2.40 1.00 C stearyl alcohol 0.50 C Hexadecyltrimethylammonium chloride ⁴ 0.60 - C PEG 60 Hydrogenated Castor Oil ⁵ 0.05 - C Ammonium Lauryl Sulfate ⁶ 0.10 - C PEG 100 Stearate ⁷ - 0.13 C ethanol (denatured) - 30.00 D. Camphor 0.10 - D. 1-Isolongifolin ⁸ - 0.50 D. Polyquatemium 4 ⁹ 0.10 - D. 2-Phenylpropyl M'Q Resin ¹⁰ - 0.50 D. lactic acid - 0.15 D. Phenoxyethanol 0.20 0.20 D. Tetrasodium EDTA 0.01 - D. citric acid 0.10 - D. spices 0.60 1.00 D. Triethanolamine 0.40 0.40 E.

1) Carbopol Ultrez 10 supplied by BF Goodrich;

2) Pemulen TR2 supplied by BF Goodrich;

3) Crodacol C-95 supplied by Croda Inc.;

4) Dehyquat A supplied by Henkel;

5) Cremophor RH-60 supplied by BASF;

6) Empicol AL 30/T supplied by Albright.&Wilson;

7) Myrj 59 supplied by ICI Surfactants;

8) Coolact P supplied by Takasago;

9) Celquat L200 supplied by National Starch;

10) Prepared according to GB-A-2,297,775;

11) A polymer having a charge density of 1.93 meq/g and a weight average molar molecular weight of 1,250,000, available from Amerchol.

Component A was dissolved in water and heated to 80°C. All of ingredient C was then added and the mixture was reflux cooled to 30°C by passing through a plate heat exchanger with simultaneous high shear mixing. The batch cooling rate was maintained at 1.0-1.5°C/minute. Then all of Ingredient D and 50% of Ingredient E, triethanolamine, were added. The mixture was then stirred until homogeneous. Component B was then dissolved in water and added to the main mix. The mixture is then subjected to high shear mixing until a uniform particle size distribution is obtained. The cycle is then stopped to prevent shear stress damage to the product while neutralization is complete. Add the remainder of Component E until the specified pH and viscosity are reached.

Example V (% by weight) V (Emulsion, Lotion) water Appropriate amount - Methylparaben 0.50 A Propylparaben 0.40 A cetyl alcohol ¹ 1.60 A Hexadecyltrimethylammonium chloride ² 0.40 A PEG 60 hydrogenated castor oil ³ 0.10 A Cationic polymer of hydroxyethyl cellulose ⁵ 0.20 B Dimethicone ⁴ 0.20 C Styrene based M'Q resin 0.20 C 2-zinc pyrithione 0.03 C Octyl Methoxycinnamate 0.10 C Benzophenone-3 0.02 C DL-alpha Tocopheryl Acetate 0.03 C DMDM hydantoin 0.05 C Tetrasodium EDTA 0.30 C citric acid 0.20 C spices 0.40 C

1) Crodacol C-95 supplied by Croda Inc.;

2) Dehyquat A supplied by Henkel;

3) Cremophor RH-60 supplied by BASF;

4) DC200 supplied by Dow Corning;

5) A polymer having a charge density of 1.93 meq/g and a weight average molar molecular weight of 1,250,000, available from Amerchol.

Component A was dissolved in water and heated to 80°C. The resulting mixture was cooled to 30°C by simultaneous high shear mixing through a plate heat exchanger. The cooling rate was maintained at 1.0-1.5°C/min. Then add all ingredient C. The mixture was then stirred until homogeneous. Component B was then dissolved in water and added to the main mix. The mixture is then subjected to high shear mixing until a uniform particle size distribution is obtained.

Claims (16)

CLAIMS 1. A hair conditioning composition for leave-on use comprising: (a) 0.01% to 2% by weight of polyquaternium-10 having a cationic charge density greater than 1.5 meq/g and less than 3.5 meq/g; (b) less than 2% by weight of anionic surfactants; and (c) 10% to 40% by weight of a _C2 - _C3 aliphatic alcohol. 2. The hair conditioning composition according to claim 1, wherein said composition comprises 0% by weight of anionic surfactant. 3. The hair conditioning composition according to claim 1, wherein said polyquaternium-10 has a charge density of less than 2.5 meq/g. 4. The hair conditioning composition according to claim 3, wherein said polyquaternium-10 has a charge density of less than 2.2 meq/g. 5. The hair conditioning composition according to claim 1, wherein said polyquaternium-10 comprises from 0.05% to 1% by weight of the total composition. 6. The hair conditioning composition of claim 1, wherein the aliphatic alcohol is a _C2 aliphatic alcohol. 7. The hair conditioning composition according to any one of claims 1-6, wherein the polyquaternium-10 has an average molecular weight of from 5,000 to 10,000,000. 8. The hair conditioning composition according to claim 7, wherein said polyquaternium-10 has an average molecular weight of 1,000,000 to 1,500,000. 9. The hair conditioning composition according to claim 1, further comprising a silicone conditioning agent. 10. A hair conditioning composition according to claim 9 wherein the silicone conditioning agent is an aryl, alkaryl or aralkyl modified silicone. 11. The hair conditioning composition according to claim 10, wherein the silicone conditioning agent is an aralkyl modified silicone. 12. A hair conditioning composition according to any one of claims 9-11 wherein the silicone conditioning agent is a silicone resin. 13. A hair conditioning composition according to claim 12 wherein the silicone resin comprises from 0.001% to 10% by weight of the total composition. 14. A hair conditioning composition according to claim 12, wherein the silicone resin has a viscosity of less than 5000 ^{mm2s -1} . 15. A hair conditioning composition according to claim 14, wherein the silicone resin has a viscosity of less than 1000 ^{mm2s -1} . 16. A hair conditioning composition according to claim 15, wherein the silicone resin has a viscosity of less than ^{600mm2s -1} .