Self-foaming cream
US6210656A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1999 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Apr 15, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S424/01
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A self-foaming composition in the form of a post-foaming, pressurizable oil-in-water emulsion comprising: PA1 (A) at least 5% by weight, relative to the total weight of the composition, of a fatty phase comprising at least one cosmetic oil, PA1 (B) a gelling system comprising at least one emulsifying polymer which is selected from the group consisting of: PA1 (1) crosslinked homopolymers formed from at least one cationic or anionic monomer containing ethylenic unsaturation selected from the group consisting of ammonium (meth)acrylate; 2-acrylamido-2-methylpropanesulfonic acid as well as its salts, dialkylaminoalkyl (meth)acrylates, dialkylaminoalkyl (meth)acrylamide and its quaternary salts or acids, wherein the crosslinking agent which forms the crosslinking contains ethylenic polyunsaturation, and PA1 (2) crosslinked copolymers formed from at least one cationic or anionic monomer containing ethylenic unsaturation, from at least one nonionic comonomer and from a crosslinking agent containing ethylenic polyunsaturation; and PA1 (C) water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.