Inverse latex and use in cosmetics
US7033600B1 · kind B1 · utility
6Cited by
12References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1999 |
| Grant date | Apr 25, 2006 |
| Priority date | — |
| Expiry date | Nov 19, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A cosmetic, dermopharmaceutical or pharmaceutical composition includes a composition containing an oil phase, an aqueous phase, a water-in-oil (W/O) emulsifier, an oil-in-water (O/W) emulsifier, in the form of a positive latex comprising 20 wt. % to 60 wt. %, and preferably 30 wt. % to 50 wt. %, of a branched or linear anion polyelectrolyte based on 2-methyl 2-[(1-oxo-2-propenyl)amino] 1-propanelsulphonic acid partly or completely salified, copolymerized with acrylamide, the organic solvent constituting the oil phase of the positive latex being isohexadecane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.