Pigment compositions of diketopyrrolopyrroles

Details Pigment compositions of diketopyrrolopyrroles Pigment compositions of diketopyrrolopyrroles

C - Chemistry, Metallurgy

09

B

C09B 57/00 (2006.01) C08K 5/3415 (2006.01) C09B 67/22 (2006.01)

Patent

CA 2179106

1. A pigment composition, comprising a) 80-99.8 mol% of a diketopyrrolopyrrole of formula Image wherein A and B are each independently of the other a Image wherein R1 and R2 are each independently of the other hydrogen, chloro, bromo, C1-C6alkyl, C1-C18alkoxy, C2-C19alkoxycarbonyl, C2-C19alkylcarbamoyl, C1-C18alkylmercapto, C1-C18alkylamino, C5-C6cycloalkyl, G is a direct bond or -O-, -S-, -SO-, -SO2- or -NR5-, R3 and R4 are each independently of the other hydrogen, chloro, bromo, C1-C6alkyl, C1-C18alkoxy or C1-C18alkylamino, and R5 is hydrogen or C1-C6alkyl, and b) 20-0.2 mol% of a diketopyrrolopyrrole of formula Image (II), wherein one of R6 or R7 is hydrogen and the other is -CN. Such pigment compositions are distinguished by excellent resistance to recrystallisation and heat.

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