Stabilisation of pyrrolopyrrole pigments

Details Stabilisation of pyrrolopyrrole pigments Stabilisation of pyrrolopyrrole pigments

C - Chemistry, Metallurgy

09

B

C09B 57/00 (2006.01) B01J 13/02 (2006.01) C08K 5/00 (2006.01) C08K 5/3415 (2006.01) C08K 5/3417 (2006.01) C09B 67/20 (2006.01)

Patent

CA 2090924

TH/P-19011/A Stabilisation of pyrrolopyrrole pigments Abstract Pigment compositions comprising a) at least one pyrrolo[3,4-c]pyrrole pigment of the formula Image (I), in which A and B, independently of one another, are isocyclic or heterocyclic aromatic radicals, and D is an oxygen or sulfur atom, and b) from 1 to 100 % by weight, based on the pigment, of a nitroxyl compound or of an acid-addition salt thereof. These pigment compositions are distinguished by excellent light stability and weathering resistance.

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