Multi-colored lustrous pearlescent pigments

Details Multi-colored lustrous pearlescent pigments Multi-colored lustrous pearlescent pigments

2007-06-20

2010-12-14

Green, Anthony J (Department: 1793)

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

C106S031650, C106S428000, C106S438000, C106S456000, C106S459000, C428S363000, C428S402000, C428S403000, C428S404000, C428S405000, C523S171000, C523S210000, C523S212000, C524S449000

Reexamination Certificate

active

07850775

ABSTRACT:
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). A process for making these pearlescent pigment, comprise reducing a metal oxide substrate with a hydrogen source in the presence of a noble metal catalyst in a liquid medium. The pigments may be used in a variety of applications including cosmetics, plastics, automotive or architectural coatings.

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