Crystal modification of a diketopyrrolopyrrole pigment

Details Crystal modification of a diketopyrrolopyrrole pigment Crystal modification of a diketopyrrolopyrrole pigment

1997-08-22

1999-02-16

McKane, Joseph K.

Compositions: coating or plastic

Materials or ingredients

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

106493, 106494, 106499, 106506, 524 92, 524104, 548453, C07D48704

Patent

active

058715754

ABSTRACT:
A diketopyrrolopyrrole of formula ##STR1## in its .beta.-modification. The novel .beta.-modification is also suitable as pigment for coloring high molecular weight organic materials. In comparison to the .alpha.-modification, it has a shade shifting towards blueish red, enhanced color strength and chroma as well as an enhanced resistance to heat.

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