Ceramic pigments

Details Ceramic pigments Ceramic pigments

2007-10-30

2011-10-04

Green, Anthony (Department: 1731)

Compositions: coating or plastic

Materials or ingredients

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

C106S436000, C106S438000, C106S439000, C106S450000, C106S453000, C106S456000, C106S459000, C106S489000

Reexamination Certificate

active

08029615

ABSTRACT:
A pearlescent pigment includes a ceramic flake coated with a metal oxide. The metal oxide is, preferably, an oxide of titanium, iron, tin, chromium1, zirconium or a combination thereof, and the refractive index of the metal oxide coating is preferably at least 0.5 higher than that of the ceramic flake. The pearlescent pigment may be included in a coating applied to a metallic or plastic surface to give the surface a lustrous or pearlescent optical effect.

REFERENCES:
patent: 5693134 (1997-12-01), Stephens
patent: 5753371 (1998-05-01), Sullivan et al.
patent: 6221144 (2001-04-01), Dietz et al.
patent: 6692561 (2004-02-01), Schoen et al.
patent: 199 51 869 (2001-05-01), None
patent: 0719843 (1996-07-01), None

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