发明名称 |
Process for preparation of high water-absorbent polymer beads |
摘要 |
Water-insoluble, high water-absorbent polymer beads are prepared by dispersing and suspending an aqueous solution of a water-soluble, ethylenically unsaturated monomer containing a small amount of a crosslinking agent in a dispersion medium of a hydrocarbon or a halogenated aromatic hydrocarbon, carrying out the bead polymerization in the presence of a water-soluble radical polymerization initiator and a protecting colloid comprising a cellulose ester or cellulose ether which is oil-soluble at the polymerization temperature, and separating the resulting beads.
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申请公布号 |
US4446261(A) |
申请公布日期 |
1984.05.01 |
申请号 |
US19820360496 |
申请日期 |
1982.03.22 |
申请人 |
KAO SOAP CO., LTD. |
发明人 |
YAMASAKI, HARUMASA;HARADA, SHOICHIRO |
分类号 |
C08F2/00;C08F2/08;C08F2/14;C08F2/20;C08F2/32;(IPC1-7):C08L5/00;B01J31/06 |
主分类号 |
C08F2/00 |
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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