Vehicle systems for use in cosmetic compositions

Claim 2

A cosmetic composition characterized in that it comprises: (a) from 80% to 100% of a vehicle system which comprises: (A) from 0.3% to 5.0% by weight of the cosmetic composition of a hydrophobically modified nonionic water-soluble polymer which comprises a water-soluble polymer backbone and hydrophobic groups selected from C 8 -C 22 alkyl, aryl alkyl, alkyl aryl groups and mixtures thereof; wherein the ratio of the hydrophilic portion to the hydrophobic portion of the polymer is from 10:1 to 1000:1, which is preferably a nonionic cellulose ether having a sufficient degree of nonionic substitution selected from methyl, hydroxyethyl and hydroxypropyl to cause it to be water-soluble and being further substituted with a long chain alkyl radical having 10 to 24 carbon atoms in an amount between 0.2 weight percent and the amount which renders said cellulose ether less than 1 % by weight soluble in water; and (B) from 0.3% to 5.0% by weight of the cosmetic composition of a water-soluble polymeric thickener having a molecular weight greater than 20,000; and (C) from 65% to 99% by weight of the cosmetic composition of a compatible solvent; and (b) from 0% to 20% of an active cosmetic component; wherein said cosmetic compositions comprise no more than 1.0% of water-soluble surfactants, and most preferably wherein the vehicle system provides a rheology to the cosmetic composition that is characterized by a shear stress of from 0 to 50 pascal over a shear rate range of from 0.04 sec- 1 to 25 sec- 1.

Claim 3

The composition according to Claim 1 wherein the nonionic cellulose ether comprises from 0.4% to 3.0% of the cosmetic composition, and preferably wherein the nonionic cellulose ether comprises the long-chain alkyl radical attached via an ether linkage.

Claim 4

The composition according to Claim 1 or 2 wherein the nonionic cellulose ether is selected from a water-soluble hydroxypropyl cellulose substituted with a long-chain alkyl radical having 10 to 24 carbon atoms in an amount between 0.2 weight percent and the amount which renders the hydroxypropyl cellulose less than 1% by weight soluble in water; and a water-soluble hydroxyethyl cellulose, which preferably has a molecular weight of from 50,000 to 700,000, which is substituted with a long-chain alkyl radical having 10 to 24 carbon atoms in an amount between 0.2 weight percent and the amount which renders the hydroxyethyl cellulose less than 1% by weight soluble in water.

Claim 5

The composition according to any of Claims 1-3 wherein the water-soluble hydroxyethyl cellulose is substituted with a long chain alkyl radical having 16 carbon atoms in an amount between 0.40% to 0.95%, by weight; the hydroxyethyl molar substitution is from 2.3 to 3.7; and the average molecular weight of the unsubstituted cellulose is from 300,000 to 700,000.

Claim 6

The composition according to any of Claims 1-4 wherein the water-soluble polymeric thickener is at a level of from 0.4% to 3.0% and is selected from hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, polyethylene glycol, polyacrylamide, polyacrylic acid, polyvinyl alcohol, polyvinyl pyrrolidone, dextran, carboxymethylcellulose, acacia plant exudate, ghatti plant exudate, tragacanth plant exudate, sodium alginate, propylene glycol alginate, sodium carrageenan, natural polysaccharides, and mixtures thereof, and is preferably a natural polysaccharide, most preferably selected from guar gum, locust bean gum, xanthan gum, and mixtures thereof.

Claim 7

The composition according to any of Claims 1-5 which additionally comprises from 0.05% to 1.0% of a chelating agent, which is selected from ethylenediaminetetra-acetic acid and salts thereof, nitrilotriacetic acid and salts thereof, hydroxyethylenediamine triacetic acid and salts thereof, diethylene triamine pentaacetic acid and salts thereof, diethanol glycine and salts thereof, ethanoldiglycine and salts thereof, citric acid and salts thereof, phosphoric acid and salts thereof.

Claim 8

The composition according to any of Claims 1-6 wherein from 0.02% to 2.5% of the water-soluble polymer is selected from water-soluble polymers having a molecular weight greater than 1,000,000, and water-soluble polymers having strong ionic character.

Claim 9

The cosmetic composition according to any of Claims 1-7, which is a hair care composition, which preferably comprises no more than about 1% of fatty alcohol materials, wherein said active cosmetic component comprises an active hair care component, which is preferably selected from conditioning agents, antidandruff aids, hair growth promoting aids, perfumes, dyes, pigments, sunscreens, hair holding polymers, and mixtures thereof, and most preferably is selected from a volatile silicone fluid having a viscosity of less than 10 centipoise, a non-volatile silicone fluid having a viscosity of less than 100,000 cP, a silicone gum having a viscosity greater than 1,000,000 cP, which is preferably selected from polydimethylsiloxane gums and polyphenylmethylsiloxane gums, and mixtures thereof.

Claim 10

The composition according to Claim 8 wherein the active hair care component comprises from 0.01% to 10% of a rigid silicone polymer having a complex viscosity of at least 2 x 10 5 poise, which is preferably selected from organic substituted siloxane gums, silicone elastomers, filler reinforced polydimethyl siloxane gums, resin reinforced siloxanes and crosslinked siloxane polymers; and a volatile carrier for the rigid silicone polymer, which is preferably a cyclic silicone containing from 3 to 7 silicon atoms.

Claim 11

The composition according to Claim 8 wherein the active hair care component comprises from 0.1% to 10.0% of a copolymer which has a vinyl polymeric backbone having grafted to it monovalent siloxane polymeric moieties, said copolymer comprising C monomers and components selected from A monomers, B monomers, and mixtures thereof, wherein: A is at least one free radically polymerizable vinyl monomer, the amount by weight of A monomer, when used, being up to 98%, preferably from 5% to 98%, by weight of the total weight of all monomers in said copolymer; B is at least one reinforcing monomer copolymerizable with A, the amount by weight of B monomer, when used, being up to 98% of the total weight of all monomers in said copolymer, said B monomer being selected from polar monomers and macromers; and C is a polymeric monomer having a molecular weight of from 1,000 to 50,000 and the general formula X(Y) n Si(R) 3-m (Z) m wherein X is a vinyl group copolymerizable with the A and B monomers Y is a divalent linking group R is a hydrogen, lower alkyl, aryl or alkoxy Z is a monovalent siloxane polymeric moiety having a number average molecular weight of at least 500, is essentially unreactive under copolymerization conditions, and is pendant from said vinyl polymeric backbone after polymerization n is 0 or 1 m is an integer from 1 to 3 wherein C comprises from 0.01 % to 50%, prefedrably from 0.1 % to 50%, of the copolymer.

Claim 12

The composition according to Claim 10 wherein the active hair care component comprises a lipophilic low polarity free radically polymerizable vinyl monomer (A), a hydrophilic polar monomer which is copolymerizable with A (B), and a silicone- containing macromer having a weight average molecular weight of from 1,000 to 50,000 based on polydimethylsiloxane selected from and wherein m is 1, 2 or 3; p is 0 or 1; R is alkyl or hydrogen; q is an integer from 2 to 6; s is an integer from 0 to 2; X is R 1 is hydrogen or -COOH; R 2 is hydrogen, methyl or -CH 2 COOH; Z is R 4 is alkyl, alkoxy, alkylamino, aryl, or hydroxyl; and r is an integer from 5 to 700.

Claim 13

The composition according to Claim 10 or 11 wherein monomer A is selected from acrylic acid esters of C 1 -C 18 alcohols, methacrylic acid esters of C 1 -C 18 alcohols, styrene, vinyl acetate, vinyl chloride, vinylidene chloride, acrylonitrile, alpha-methylstyrene, t-butylstyrene, butadiene, cyclohexadiene, ethylene, propylene, vinyl toluene, polystyrene macromer, and mixtures thereof, and is preferably selected from n-butylmethacrylate, isobutylmethacrylate, 2-ethylhexyl methacrylate, methylmethacrylate, t-butylacrylate, t-butylmethacrylate, and mixtures thereof; and wherein monomer B is selected from acrylic acid, methacrylic acid, N,N-dimethylacrylamide, dimethylaminoethyl methacrylate, quaternized dimethylaminoethyl methacrylate, methacrylonitrile, methacryloamide, maleic anhydride, half esters of maleic anhydride, itaconic acid, acrylamide, acrylate alcohols, hydroxyethyl methacrylate, diallyldimethyl ammonium chloride, vinyl pyrrolidone, vinyl ethers, maleimides, vinyl pyridine, vinyl imidazole, styrene sulfonate, and mixtures thereof, and is preferably selected from acrylic acid, N,N-dimethylacrylamide, dimethylaminoethyl methacrylate, quaternized dimethylaminoethyl methacrylate, vinyl pyrrolidone, and mixtures thereof.

Claim 14

The composition according to any of Claims 10-12 wherein monomer C has the formula preferably wherein p = 0 and q = 3, and most preferably wherein m is 1, r is 250, R 4 is alkyl, R 1 is hydrogen, and R 2 is methyl.

Claim 15

The composition according to any of Claims 10-13 wherein the silicone-containing copolymer is selected from acrylic acid/n-butylmethacrylate/polydimethylsiloxane macromer -20,000 mw (10/70/20); N,N-dimethylacrylamide/isobutyl methacrylate/PDMS macromer -20,000 mw (20/60/20); dimethylaminoethyl methacrylate/isobutyl methacrylate/2-ethylhexyl methacrylate/PDMS - 20,000 mw (25/40/15/20); dimethylaminoethyl methacrylate/isobutyl methacrylate/PDMS -20,000 mw (10/70/20); quaternized dimethylaminoethyl methacrylate/isobutyl methacrylate/PDMS - 20,000 mw (40/40/20); acrylic acid/methyl methacrylate/PDMS - 20,000 mw (40/40/20); acrylic acid/isopropyl methacrylate/PDMS - 20,000 mw (25/65/10); N,N-dimethylacrylamide/methoxyethyl methacrylate/PDMS - 20,000 mw (60/25/15); dimethylacrylamide/PDMS macromer - 20,000 mw (80/20); t-butylacrylate/t-butyl methacrylate/PDMS macromer - 10,000 mw (56/24/20); t-butylacrylate/PDMS macromer - 10,000 mw (80/20); t-butylacrylate/N,N-dimethylacrylamide/PDMS macromer - 10,000 mw (70/10/20); t-butylacrylate/acrylic acid/PDMS macromer - 10,000 mw (75/5/20); and mixtures thereof.

Claim 16

A hair care composition characterized in that it comprises: (a) from 80% to 99.9% of a vehicle system which comprises: (A) from 0.4% to 3.0%, by weight of the hair care composition, of a nonionic cellulose ether having a hydroxyethyl molar substitution of from 2.3 to 3.7, and being further substituted with a C16 alkyl group at from 0.40% to 0.95%, by weight, wherein the unsubstituted hydroxyethyl cellulose has an average molecular weight of from 300,000 to 700,000; (B) from 0.4% to 3.0%, by weight of the hair care composition, of a water-soluble polymeric thickener having a molecular weight greater than 20,000 which is selected from locust bean gum and hydroxyethyl- cellulose having a molecular weight of 700,000; (C) from 0.05% to 0.3% of a chelatlng agent which is selected from ethylene diamine tetra acetic acid and salts thereof, citric acid and salts thereof, and phosphoric acid and salts thereof; and (D) from 0.05% to 1.0% of a distributing aid which is selected from xanthan gum and dextran having a molecular weight of greater than 1,000,000; and (E) from 65% to 99%, by weight of the hair care composition, of a compatible solvent; and (b) from 0.1 % to 20% of an active hair care component, which is selected from (A) silicone-containing copolymer selected from acrylic acid/n-butylmethacrylate/polydimethylsiloxane macromer - 20,000 mw (10/70/20); N,N-dimethylacrylamide/isobutyl methacrylate/PDMS macromer - 20,000 mw (20/60/20); dimethylaminoethyl methacrylate/isobutyl methacrylate/2-ethylhexyl methacrylate/PDMS - 20,000 mw (25/40/15/20); dimethylaminoethyl methacrylate/isobutyl methacrylate/PDMS - 20,000 mw (10/70/20); quaternized dimethylaminoethyl methacrylate/isobutyl methacrylate/PDMS - 20,000 mw (40/40/20); acrylic acid/methyl methacrylate/PDMS - 20,000 mw (40/40/20); acrylic acid/isopropyl methacrylate/PDMS - 20,000 mw mw (25/65/10); N,N-dimethylacrylamide/methoxyethyl methacrylate/PDMS - 20,000 mw (60/25/15); dimethylacrylamide/PDMS macromer - 20,000 (80/20); t-butylacrylate/t-butyl methacrylate/PDMS macromer - 10,000 mw (56/24/20); t-butylacrylate/PDMS macromer - 10,000 mw (80/20); t.butylacrylate/N,N-dimethylacrylamide/PDMS macromer - 10,000 mw (70/10/20); t-butylacrylate/acrylic acid/PDMS macromer - 10,000 mw (75/5/20); and mixtures thereof, and (B) a silicone conditioning agent which is selected from a conditioning agent comprising: (a) from 0.1% to 2.5% of a polydimethylsiloxane gum; (b) from 0.02% to 0.7% of fumed silica; and (c) from 0.4% to 18% of a volatile silicone carrier; a conditioning agent comprising: (a) a volatile silicone fluid having a viscosity of less than 10 centipoise; (b) from 0.5% to 2.0% of a silicone gum having a viscosity of greater than 1,000,000 centipoise; at ratios of volatile fluid to gum of from 85:15 to 50:50; and a conditioning agent comprising: (a) a non-volatile silicone fluid having a viscosity of less than 100,000 centipoise; (b) from 0.5% to 2.0% of a silicone gum having a viscosity of greater than 1,000,000 centipoise, at ratios of non-volatile fluid to gum of from 60:40 to 40:60, wherein said hair care composition comprises no more than 0.5% of water-soluble surfactants; no more than 1 % of fatty alcohol materials; and wherein said hair care composition has a rheology that is characterized by a shear stress of from 0 to 50 pascal over a shear rate range of from 0.04 sec-' to 25 sec-'.

Claim 17

A hair care composition characterized in that it comprises: (a) from 80% to 99.9% of a vehicle system which comprises: (A) from 0.4% to 3.0%, by weight of the hair care composition, of a nonionic cellulose ether having a hydroxyethyl molar substitution of from 2.3 to 3.7, and being further substituted with a C16 alkyl group at from 0.40% to 0.95%, by weight, wherein the unsubstituted hydroxyethyl cellulose has an average molecular weight of from 300,000 to 700,000; (B) from 0.4% to 3.0%, by weight of the hair care composition, of a water-soluble polymeric thickener having a molecular weight greater than 20,000 which is selected from locust bean gum and hydroxyethyl- cellulose having a molecular weight of 700,000; (C) from 0.05% to 0.3% of a chelatlng agent which is selected from ethylene diamine tetra acetic acid and salts thereof, citric acid and salts thereof, and phosphoric acid and salts thereof; and (D) from 0.05% to 1.0% of a distributing aid which is selected from xanthan gum and dextran having a molecular weight of greater than 1,000,000; and (E) from 65% to 99%, by weight of the hair care composition, of a compatible solvent; and (b) from 0.1 % to 20% of an active hair care component, which is selected from (A) silicone-containing copolymer selected from acrylic acid/n-butylmethacrylate/polydimethylsiloxane macromer - 20,000 mw (10/70/20); N,N-dimethylacrylamide/isobutyl methacrylate/PDMS macromer - 20,000 mw (20/60/20); dimethylaminoethyl methacrylate/isobutyl methacrylate/2-ethylhexyl methacrylate/PDMS - 20,000 mw (25/40/15/20); dimethylaminoethyl methacrylate/isobutyl methacrylate/PDMS - 20,000 mw (10/70/20); quaternized dimethylaminoethyl methacrylate/isobutyl methacrylate/PDMS - 20,000 mw (40/40/20); acrylic acid/methyl methacrylate/PDMS - 20,000 mw (40/40/20); acrylic acid/isopropyl methacrylate/PDMS - 20,000 mw mw (25/65/10); N,N-dimethylacrylamide/methoxyethyl methacrylate/PDMS - 20,000 mw (60/25/15); dimethylacrylamide/PDMS macromer - 20,000 (80/20); t-butylacrylate/t-butyl methacrylate/PDMS macromer - 10,000 mw (56/24/20); t-butylacrylate/PDMS macromer - 10,000 mw (80/20); t.butylacrylate/N,N-dimethylacrylamide/PDMS macromer - 10,000 mw (70/10/20); t-butylacrylate/acrylic acid/PDMS macromer - 10,000 mw (75/5/20); and mixtures thereof, and (B) a silicone conditioning agent which is selected from a conditioning agent comprising: (a) from 0.1% to 2.5% of a polydimethylsiloxane gum; (b) from 0.02% to 0.7% of fumed silica; and (c) from 0.4% to 18% of a volatile silicone carrier; a conditioning agent comprising: (a) a volatile silicone fluid having a viscosity of less than 10 centipoise; (b) from 0.5% to 2.0% of a silicone gum having a viscosity of greater than 1,000,000 centipoise; at ratios of volatile fluid to gum of from 85:15 to 50:50; and a conditioning agent comprising: (a) a non-volatile silicone fluid having a viscosity of less than 100,000 centipoise; (b) from 0.5% to 2.0% of a silicone gum having a viscosity of greater than 1,000,000 centipoise, at ratios of non-volatile fluid to gum of from 60:40 to 40:60, wherein said hair care composition comprises no more than 0.5% of water-soluble surfactants; no more than 1 % of fatty alcohol materials; and wherein said hair care composition has a rheology that is characterized by a shear stress of from 0 to 50 pascal over a shear rate range of from 0.04 sec-' to 25 sec-'.