Cosmetic comprising multi-colored lustrous pearlescent pigments
US8221536B2 · kind B2 · utility
3Cited by
96References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2007 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Aug 22, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09C2200/407
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A cosmetic containing a pearlescent pigment comprising a substrate and a first layer, wherein the first layer comprises iron oxide, wherein the iron has from about 1% to about 30% Fe(II) and from about 70% to about 99% Fe(III).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.