Pigment preparations
AssigneeBayer Aktiengesellschaft
InventorsMartin Wienkenhover, Volker Paulat, Wolfgang Karnath, Hans Schulze, Karlheinz Wolf, Karl-Heinz Wieser
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Abstract
Pigment preparations which contain an organic pigment and/or carbon black and a surfactant from the sulphosuccinic acid ester and/or alkylbenzenesulphonate series and which have been dried, if appropriate after wet comminution, by spray- or freeze-drying from an aqueous medium, and the use of these preparations for pigmenting high molecular weight organic material, in particular thermoplastics.
Claims10
Pigment preparations consisting essentially of an organic pigment and/or carbon black and a surfactant selected from the group consisting of sulphosuccinic acid ester series, alkylbenzenesulphonate series and mixtures thereof, which have been dried, after wet comminution, by spray- or freeze-drying from an aqueous medium.
Dependencies are inferred from the claim text.