发明名称 |
PROCESS FOR PRODUCING A WATER-ABSORBENT RESIN |
摘要 |
A water-absorbent resin having excellent physical properties can be produced by a process wherein an aqueous solution containing an .alpha.,.beta.-unsaturated carboxylic acid and an alkali metal salt thereof in a total amount of 25% by weight or more is subjected to polymerization with a radical polymerization initiator in a petroleum-based hydrocarbon solvent in the presence or absence of a crosslinking agent, characterized by using, as a surfactant, a polyglycerine - fatty acid ester having an HLB of 2 to 16 and represented by the general formula (wherein R is an acyl group or hydrogen atom and n is an integer of 0 to 8). |
申请公布号 |
CA1282543(C) |
申请公布日期 |
1991.04.02 |
申请号 |
CA19870526671 |
申请日期 |
1987.01.05 |
申请人 |
SEITETSU KAGAKU CO., LTD. |
发明人 |
OBAYASHI, SHIGEJI;NAKAMURA, MORIO;YAMAMOTO, TAKUSHI;TANAKA, HITOSHI;SAKAMOTO, YUJI |
分类号 |
C08F2/16;A61L15/60;C08F2/08;C08F2/18;C08F2/32;C08F2/44;C08F20/00;C08F20/04;C08F20/06;C08F20/10;C08F20/52;C08F220/04;C08F220/06;C08F220/20;C08F220/56 |
主分类号 |
C08F2/16 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|