| abstract |
The invention relates to pigment concentrates for coloring thermoplastics, comprising - at least one color pigment - at least one copolymer wax, produced by converting long-chain olefin hydrocarbon in the chain length range of ≥ 12 C-atoms having unsaturated polycarboxylic acids or anhydrides thereof in the presence of at least one radical starter and comprising a) 40 - 60 mol-% units derived from α-olefins of the chain length C 12 -C 60 , preferably C 24 -C 60 , particularly preferably C 28 -C 60 , and b) 60-40 mol-% units that derive from unsaturated polycarboxylic acids or anhydrides thereof, and at least one thermoplastic polyolefin as applicable. |