| abstract |
Stabilisation of organic pigments Abstract Pigment compositions comprising a) at least one organic pigment chosen from the group comprising azo pigments, quinacridones, phthalocyanines, indanthrones, flavanthrones, pyranthrones, anthraquinones, perylenes, dioxazines, perinones, thioindigo, isoindolines, isoindolinones and metal complexes and b) 1 to 100% by weight, based on the pigment, of an N-hydrocarbyloxy amine consisting of at least one unsubstituted or substituted 5-, 6 or 7-membered heterocyclic ring containing a divalent group of the formula (I) or (II), in which R is C1-C18alkyl, C2-C12alkenyl. C2-C12alkynyl, C5-C12cycloalkyl, C6-C10aryl or C7-C12aralkyl, R1 and R2 independently of one another are methyl, ethyl or phenyl, or together form a to 12-membered aliphatic ring, and L is an aromatic radical. These pigment compositions are distinguished by an outstanding resistance to light and weathering. |