| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain an antifoaming agent which exhibits an excellent anti-foaming property even at a low temperature, and has an excellent dynamic surface tension reduction ability. <P>SOLUTION: This antifoaming agent is the one in which a polyoxyalkylene compound represented by formula (1) is an essential ingredient, wherein, R is an 8-18C acyl group, N is nitrogen atom, H is hydrogen atom, AO is a 2-3C oxyalkylene group, M is a 1-2C hydrocarbon group, (q) represents an integer of 0-6, (m) is an integer of 1-30, (n) is an integer of 1-3, and the total number of AOs is 20-70. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
