Tetrachloroperylene-3,4,9,10-tetracarboxylic acid diimide pigmen

Details Tetrachloroperylene-3,4,9,10-tetracarboxylic acid diimide pigmen Tetrachloroperylene-3,4,9,10-tetracarboxylic acid diimide pigmen

1987-09-03

1989-07-11

Lieberman, Paul

Compositions: coating or plastic

Materials or ingredients

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

546 37, C08K 534

Patent

active

048468924

ABSTRACT:
A tetrachloroperylene-3,4,9,10-tetracarboxylic acid diimide pigment which contains not less than 85% by weight of the tetrachloro compound of the formula ##STR1## which is present to the extent of not less than 95% by weight in the .beta.-modification and which, in an X-ray spectrum, exhibits 2.sup..crclbar. CuK.sub..alpha. main lines at 9.0.degree., 13.3.degree., 15.0.degree., 16.8.degree., 19.1.degree., 21.5.degree., 24.2.degree., 25.4.degree., 26.5.degree., 27.0.degree. and 27.5.degree..
In finishes, the pigment gives very brilliant colorations which are very highly lightfast and fast to weathering and which, upon weathering, neither bleach nor darken up.

REFERENCES:
patent: 4431806 (1984-02-01), Spietschka et al.
patent: 4492648 (1985-01-01), Claussen

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