Use in cosmetics of a reverse latex of nitrogenous salts of polyacrylate, novel latices, process for their preparation and cosmetic compositions incorporating them
US6346239B1 · kind B1 · utility
15Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1999 |
| Grant date | Feb 12, 2002 |
| Priority date | — |
| Expiry date | Dec 17, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/06
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Use of a composition having an oil phase, an aqueous phase, at least one emulsifier of water-in-oil (W/O) type and at least one emulsifier of oil-in-water (O/W) type, in the form of a reverse latex comprising from 20% to 70% by weight, and preferably from 25% to 40% by weight, of an anionic polyelectrolyte, the anionic polyelectrolyte being based on partially neutralized acrylic acid, which may be branched and/or crosslinked, to prepare a cosmetic, dermopharmaceutical or pharmaceutical composition. Novel lattices, process for their preparation and cosmetic, dermopharmaceutical or pharmaceutical composition incorporating them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.