| 摘要 |
<p>PURPOSE:To obtain a dispersant preventing the aggregation of a pigment and forming a stable dispersion liq. by using polyether polyol prepd. by adding specified alkylene oxides to polyamine, etc., as starting material in a specified order. CONSTITUTION:Polyether polyol represented by a formula A((CxH2xO)b(CyH2yO)c(CxH2xO)dH)e or A((CxH2xO)b(CyH2yO)c(B)H)e (where A is a polyamine compd. etc., having 6-300 (e) active hydrogen atoms, x is 2 or 3, y is an integer of 8-30, b is 0 or an integer of 1-50, c is 0 or an integer of 1-10, the average equiv. number of CyH2yO to one molecule is 0.6-10e, d is an integer of 1-50, e is an integer of 6-300 and B is an oxyalkylene chain obtd. by polymerizing ethylene oxide, etc.) is used as a dispersant for dispersing fine powder of an insoluble pigment in an org. liq. This dispersant has superior flowability and dispersion stability and hardly emits a bad odor.</p> |
