Patent · US Active

Cosmetic comprising multi-colored lustrous pearlescent pigments

US8221536B2 · kind B2 · utility

3Cited by
96References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 31, 2007
Grant dateJul 17, 2012
Priority date
Expiry dateAug 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.