| abstract |
The present invention discloses addition compounds suitable as dispersants or anti-sedimentation agents, especially for pigments, fillers and matting agents. The compounds are prepared by reacting a polyisocyanate having an average functionality of 2 - 6, with a compound having a polymer 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. |