Post-foaming cosmetic composition and method employing same
View Patent ↗The present invention provides a composition for application to keratin fibers, preferably hair, more preferably the hair of the scalp, eyebrows and eyelashes, and most preferably the eyelashes. The composition comprises a post-foaming gel containing a film forming agent and, optionally, a colorant, preferably a pigment. The present invention also provides a method for imparting a volumizing effect to hair of the scalp, eyebrows or eyelashes.
1. A method for imparting a volumizing effect to eyelashes comprising the step of contacting said eyelashes with a cosmetically acceptable post-foaming gel composition comprising: a film forming agent; a volatile aliphatic hydrocarbon post-foaming component; a surfactant; and a pigment, the volatile aliphatic hydrocarbon post-foaming component causing the surfactant to foam on the eyelashes so that the composition encasing the eyelashes increases in radius.
2. The composition of claim 1 , wherein the gel includes about 1 to about 50% by weight of said film-forming agent, based on the total weight of the gel.
3. The composition of claim 1 , wherein said film-forming agent is a copolymer.
4. The composition of claim 3 , wherein said film-forming agent is selected from the group consisting of an acrylates copolymer, methacrylates copolymer, and mixtures thereof.
5. The composition of claim 1 , wherein said pigment is present in an amount sufficient to mask color of foam entrapped by the film-forming agent.
6. The composition of claim 1 wherein said pigment is a pigment dispersion.
7. The composition of claim 6 , wherein said pigment dispersion comprises water, an iron oxide and a second film forming agent.
8. The composition of claim 1 , wherein the gel further comprises a water-soluble viscosity increasing/gelling agent.
9. The composition of claim 8 , wherein said water-soluble viscosity increasing/gelling agent is selected from the group consisting of synthetic sucrose derivatives, cellulose gums and hydrophilic colloids.
10. The composition of claim 1 , wherein the gel is water-rinseable.
11. The composition of claim 1 , wherein the surfactant is an anionic surfactant.
12. The composition of claim 11 , wherein said anionic surfactant is selected from the group consisting of alkyl sulfates, alkyl ether sulfates, alkyl monoglyceryl ether sulfates, alkyl monoglyceride sulfates, alkyl monoglyceride sulfonates, alkyl sulfonates, alkylaryl sulfonates, alkyl sulfosuccinates, alkyl ether sulfosuccinates, alkyl sulfosuccinates, alkyl amidosulfosuccinates, alkyl carboxylates, alkyl amidoethercarboxylates, alkyl succinates, fatty acyl sarcosinates, fatty acyl amino acids, fatty acyl taurates, fatty alkyl sulfoacetates, alkyl phosphates, alkyl ether phosphates, and mixtures thereof.
13. The composition of claim 1 , wherein the surfactant is an amphoteric surfactant.
14. The composition of claim 13 , wherein the amphoteric surfactant is selected from the group consisting of amphocarboxylates, alkyl betaines, amidoalkyl betaines, amidoalkyl sultaines, amphophosphates, phosphobetaines, pyrophosphobetaines, carboxyalkyl alkyl polyamines, alkyl amino monoacetates, alkyl amino diacetates, and mixtures thereof.
15. The composition of claim 1 , wherein the surfactant is a nonionic surfactant.
16. The composition of claim 15 , wherein the nonionic surfactant is a polyoxyethylene derivatives of a polyol ester.
17. The composition of claim 1 , wherein the film-forming agent is present in an amount sufficient to form a film over greater than about 50% of the surface of the foam or sufficient to increase foam lattice rigidity by greater than about 50%.
18. The composition of claim 1 , wherein the film-forming agent is present in an amount sufficient to form a film over greater than about 75% of the surface of the foam or sufficient to increase foam lattice rigidity by greater than about 75%.
19. The composition of claim 1 , wherein the film-forming agent is present in an amount sufficient to entrap at least a portion of the foam and, when the film-forming agent sets, maintain the increased radius thereby imparting a volumizing effect to the eyelashes.
20. The composition of claim 19 , wherein the composition is pliable at said increased radius.
21. The composition of claim 1 , wherein the volatile aliphatic hydrocarbon post-foaming component is selected from the group consisting of n-pentane, isopentane, n-butane, isobutane, isobutene, trichlorofluoroethane, 1,2-dichloro-1,1,2,2-tetrafluoroethane, neopentane, and mixtures thereof.
22. The composition of claim 1 , wherein the volatile aliphatic hydrocarbon post-foaming component has a vapor pressure of from about 6 to about 30 pounds per square inch gauge at a temperature of from about 90° to about 100° F.