| Original document(19 pages) Authorized document(9 pages) 中文版 |
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). |
Application Number
申请号 |
87100437 |
Application Date
申请日 |
1987.01.24 |
| Title 名称 |
Process for producing absorptive water resin |
Publication Number
公开号 |
1013160 |
Publication Date
公开日 |
1987.09.09 |
| Approval Pub. Date |
1990.03.14 |
Granted Pub. Date |
1990.03.14 |
| International Classification 分类号 |
B01J20/26;C08F2/32;C08F20/06 |
Applicant(s) Name
申请人 |
Seitetsu Kagaku Co., Ltd. |
| Address 地址 |
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| Inventor(s) Name 发明人 |
Juji Okihayashi;Morio Nakamura;Takushi Yamamoto |
| Attorney & Agent 代理人 |
REN ZONGHUA LIN BAINAN |
| More information 更 多 信 息 |
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