| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a new and improved polymer dispersant which has excellent affinity for supercritical fluids in dispersions using the supercritical fluids, can sufficiently impregnate the supercritical fluids into dispersoids, to provide a method for dispersing a dispersoid with the polymer dispersant, and to provide a dispersion composition using the same. <P>SOLUTION: This dispersant is characterized by binding a halocarbon compound or silicon compound of substituent having affinity for supercritical fluids to the terminal of a block copolymer. Thereby, surface tension between a dispersoid and the supercritical fluid is lowered to accelerate the spreading of the supercritical fluid into the dispersoid, and the dispersoid can hence be dispersed in fine particle sizes. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
