Color cosmetic compositions
Color cosmetic compositions include a rheology modifier (thickener) and film-former copolymer which is a crosslinked, linear copolymer of poly(vinyl amide polymerizable carboxylic acid) e.g. poly(vinyl pyrrolidone-acrylic acid), which is compatible with iron oxides generally present in such compositions, e.g. gel and emulsion color cosmetic formulations such as gel eyelid enhancers, oil-in-water emulsion eyeliner and oil-in-water emulsion foundation products.
1. A color cosmetic composition comprising a color ingredient and a compatible crosslinked, linear copolymer of poly(vinylamide-polymerizable carboxylic acid) as rheology modifier and film-former wherein said color ingredient comprises iron oxide and said crosslinked, linear copolymer has a composition of 1-99% of a vinyl amide polymer selected from the group consisting of vinyl pyrrolidone, vinyl caprolactam, N-vinyl formamide, N-vinyl-acetamide, N-vinyl-N-methylacetamide and mixtures thereof, and 1-99% of a polymerizable carboxylic acid monomer selected from the group consisting of (meth)acrylic acid, crotonic acid, itaconic acid, maleic acid and mixtures thereof, and a crosslinker in an amount of 0.2-3% based on weight of total monomers.
2. A color cosmetic composition according to claim 1 which is a gel.
3. A color cosmetic composition according to claim 1 which is an emulsion.
4. A color cosmetic composition according to claim 3 which is an oil-in-water emulsion.
5. A color cosmetic composition according to claim 1 which is an eyelid enhancer composition.
6. A color cosmetic composition according to claim 1 which is an eyeliner composition.
7. A color cosmetic composition according to claim 1 which is a foundation composition.
8. A color cosmetic composition according to claim 1 which includes 0.1-20 wt. % of said copolymer.
9. A color cosmetic composition according to claim 8 which includes 0.2-10 wt. % of said copolymer.
10. A color cosmetic composition according to claim 1 in which said copolymer is a crosslinked, linear poly(vinyl pyrrolidone-acrylic acid) copolymer.
11. A color cosmetic composition according to claim 10 in which said copolymer comprises 10-90 wt. % of vinyl pyrrolidone and 10-90 wt. % of acrylic acid.
12. A color cosmetic composition according to claim 1 wherein said cosmetic composition has a viscosity of about 30,000 to 100,000 cps. at a pH of about 5 to 9.
13. A color cosmetic composition according to claim 1 wherein said cosmetic composition is selected from the group consisting of a foundation, an eyelid enhancer composition, and an eyeliner composition.
14. A color cosmetic composition according to claim 1 wherein said iron oxide is selected from the group consisting of red iron oxides, yellow iron oxides, black iron oxides and mixtures thereof.
15. A color cosmetic composition according to claim 1 wherein said copolymer comprises a crosslinked, linear poly(vinyl pyrrolidone-acrylic acid) copolymer and said crosslinker is selected from the group consisting of pentaerythritol triallylether, pentaerythritol triacrylate, pentaerythritol tetraacrylate and methylene bisacrylamide.
16. A color cosmetic composition according to claim 15 wherein said copolymer comprises 10-90 wt. % of vinyl pyrrolidone and 10-90 wt. % of acrylic acid.
17. A color cosmetic composition comprising a color ingredient and a rheology modifier and film-former compatible with said color ingredients wherein said rheology modifier and film-former comprises a crosslinked, linear copolymer of poly(vinylamide-polymerizable carboxylic acid) containing a crosslinker selected from the group consisting of pentaerythritol triallylether, pentaerythritol triacrylate, pentaerythritol tetraacrylate and methylene bisacrylamide and said color ingredient comprises an iron oxide, wherein said color cosmetic composition is in the form of a gel or an emulsion and is an eyelid enhancer composition, an eyeliner composition or a foundation composition.
18. A color cosmetic composition according to claim 11 wherein said cosmetic composition has a viscosity of about 30,000 to 100,000 cps at a pH of about 5 to 9.
19. A color cosmetic composition according to claim 1 wherein the crosslinker has at least two free radical polymerizable groups in the molecule.
20. A color cosmetic composition according to claim 19 wherein the vinyl amide monomer is present in an amount of 25-80%, the polymerizable carboxylic acid is present in an amount of 20-80% and the crosslinker is present in an amount of 0.4-2% based on total weight of monomers.