Lustrous black interference pigments

Details Lustrous black interference pigments Lustrous black interference pigments

2007-12-04

2007-12-04

Koslow, C. Melissa (Department: 1755)

Compositions: coating or plastic

Materials or ingredients

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

C106S418000, C106S456000, C106S459000

Reexamination Certificate

active

10954359

ABSTRACT:
The present invention relates to lustrous black interference pigments based on a substrate mixture, characterised in that it has(A) a coating of Fe3O4(B) a colorless coating consisting of one or more layers each having a refractive index of n≦1.8,(C) optionally a coating with an absorbent, high-refractive-index material which only covers part of the surface,and optionally(D) an outer protective layer,and to the use thereof in paints, coatings, powder coatings, printing inks, plastics, ceramic materials, glasses, for the laser marking of papers and plastics, in cosmetic formulations and for the preparation of pigment compositions and dry preparations.

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