Microfine cosmetic powder comprising polymers, silicone, and lecithin
US5023075A · kind A · utility
16Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1989 |
| Grant date | Jun 11, 1991 |
| Priority date | — |
| Expiry date | Oct 10, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/412
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A cosmetic containing a powder component and a silicone oil component, said powder component having microfine, low surface energy particles, at least 50% of which have an average particle size of 10 microns, at least 70% being coated with lecithin, and said powder component further containing polymethyl methacrylate, nylon and polyethylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.