suitable addition compounds as dispersants or anti-settling agents

摘要

addition compounds suitable as dispersants or anti-settling agents. The present invention relates to addition compounds suitable as dispersants or anti-settling agents, especially for pigments, fillers and matting agents. the compounds are prepared by the reaction of a polyisocyanate having an average functionality of 2-6 with a compound having a polymeric chain and an isocyanate reactive group, and a compound having a basic ring nitrogen and an isocyanate reactive group, and preferably a compound having an isocyanate reactive group and a pigment affinic group.