Colored metallic pigment and preparation thereof

Details Colored metallic pigment and preparation thereof Colored metallic pigment and preparation thereof

1996-10-15

1998-02-17

Jones, Deborah

Compositions: coating or plastic

Materials or ingredients

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

106404, 106493, 106494, 106495, 106496, 106497, 106498, C09C 162

Patent

active

057187533

ABSTRACT:
The instant invention relates to a process for the production of colored metallic pigments, as well as these colored metallic pigments themselves, their use to color high molecular weight organic material in the mass and compositions or masterbatches containing them.
The colored metallic pigment consists essentially of multiple loose particles of 0.1-1000 .mu.m size each, said particles comprising a core of a transition metals, metalloid or alloy, preferably an aluminum flake, and a very fine, substantially continuous, uniform and homogeneous layer of organic pigment particles which is directly in contact with the metallic core. The core may be superficially oxidized.
The colored metallic pigment is prepared by a vacuum deposition process, said process being performed in an apparatus constructed, modified or charged in such a way that the organic pigment gas flows toward the metallic core.

REFERENCES:
patent: 2071156 (1937-02-01), Baer
patent: 5037475 (1991-08-01), Chida et al.
patent: 5506053 (1996-04-01), Hubbard
patent: 5562763 (1996-10-01), Bruckner et al.
Edwards et al., Aluminum Paint and Powder, 1955, pp. 188-189, Rheinhold, New York.
Takizawa, Masami. "Development and Application of Colored Metallic Pigments", Toso to Toryo (466) 50-5 (Japan), 1990.

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