US 6,616,745 B1Granted

Black pearlescent pigments

AssigneeEngelhard Corporation

InventorsSamuel F. Narvarti, Mark E. Gall, Thomas V. Edwards, Frank A. Mazzella, William L. Howell, Jr.

Life of this patent

Estimating the term…

A metal oxide-coated mica pearlescent pigment having a coating of copper chromite thereon is provided.

Dependent claims

A metal oxide-coated mica pearlescent pigment having a coating of copper chromite thereon or therein.

Dependencies are inferred from the claim text.

C09C 1/0021
Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate…:…
C09C 1/0015
Treatment of specific inorganic materials other than fibrous fillers ; Preparation of carbon black: pigments exhibiting interference colours, e.g.…
C01P 2006/60
Physical properties of inorganic compounds: optical properties, e.g. expressed in CIELAB-values
C09C 2200/102
Interference pigments characterized by the core material: the core consisting of glass or silicate material like mica or clays, e.g. kaolin

No related US applications are recorded in the indexed filing history.

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