| 摘要 |
The invention relates to pigment concentrates for colouring thermoplastic synthetic materials. The invention is characterised in that said pigment concentrates contain copolymers made of a) units which are derived from ?-olefins of the chain length C<SUB>12</SUB>-C<SUB>60</SUB>, and alternatively b) units which are derived from a carboxylic acid of formula CH<SUB>2</SUB>-CR<SUP>1</SUP>-COOH, and/or units which are derived from a carboxylic acid ester of formula CH<SUB>2</SUB>-CR<SUP>1</SUP>-COOR<SUP>2</SUP>, and/or d) units which are derived from styrene, 3-methylstyrene, 4-methylstyrene or ?-methylstyrene, wherein R<SUP>1 </SUP>represents a hydrogen atom or a methyl group and R<SUP>2 </SUP>represents a straight-chained or branched alkyl radical having 1-6 C-atoms.
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