发明名称 |
Method for production of absorbent resin excelling in durability |
摘要 |
A method for the production of (D) an absorbent resin excelling in durability, which method comprises polymerizing (A) 30% by weight to saturated concentration of (A) an aqueous water-soluble ethylenically unsaturated monomer solution containing (B) 0.005 to 5 mol % of a cross-linking agent and (C) 0.001 to 1 mol % of a water-soluble chain transfer agent, both based on the amount of said monomer (A), and if necessary, the surface region of the resultant absorbent resin (D) is cross-linked with (E) a hydrophilic cross-linking agent capable of reacting with the functional group of the absorbent resin and an absorbent resin obtained by such method.
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申请公布号 |
US6335406(B1) |
申请公布日期 |
2002.01.01 |
申请号 |
US19930026167 |
申请日期 |
1993.03.01 |
申请人 |
NIPPON SHOKUBAI KAGAKU KOGYO CO., LTD. |
发明人 |
NAGASUNA KINYA;KADONAGA KENJI;KIMURA KAZUMASA;SHIMOMURA TADAO |
分类号 |
C08F220/06;C08F2/00;C08F2/10;C08F220/04;(IPC1-7):C08F2/00 |
主分类号 |
C08F220/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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