Black perylene-based pigment and process for producing the same

Details Black perylene-based pigment and process for producing the same Black perylene-based pigment and process for producing the same

2006-08-01

2006-08-01

Green, Anthony J. (Department: 1755)

Compositions: coating or plastic

Materials or ingredients

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

C106S493000, C546S037000

Reexamination Certificate

active

07083675

ABSTRACT:
A black perylene-based pigment comprising a solid solution obtained by calcining a mixture of at least two compounds selected from the group consisting of anhydrides of perylene tetracarboxylic acid, diimide derivatives of perylene tetracarboxylic acid and diimide derivatives of perylene diiminodicarboxylic acid, exhibits an excellent blackness, an excellent heat resistance and an excellent weather fastness as well as a high resistance and a high safety.

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