Patent ID: 8372195
Filing Date: 2013-02-12
Classification: C01P,C09B,C09C,C09D

Abstract:
1. A solid pigment concentrate in the form of a powder, granules, or tablet, having a moisture content of less than 2% by weight, comprising: at least one pigment; a dispersant comprising a polyamine backbone and one or more hydrophobic pendent groups; and a non-ionic surface active agent comprising polyoxyalkylene groups, said non-ionic surface active agent being selected from oleyl amide ethoxylates and coco amide ethoxylates; wherein the pigment content is at least 60% by total weight, the dispersant content is from 2-30% by total weight, and the content of the surface active agent is from 2-30% by total weight, and wherein the weight ratio of the dispersant to said non-ionic surface active agent is between 3:1 and 1:3.