发明名称 |
PROCESS FOR PREPARING WATER-SOLUBLE POLYMERS |
摘要 |
<p>An improved process for preparing a watersoluble polymer having an excellent water solubility and a high molecular weight, which comprises subjecting a thin layer of an aqueous solution of a water-soluble vinyl-monomer to polymerization on a solid support, covering the thin layer with a substantially waterinsoluble organic material, e.g. a paraffin, a silicone oil or a low molecular polyethylene, and/or a slightly water-soluble or substantially water-insoluble alkylene oxide adduct at least at a point of time when the aqueous monomer solution has not freely flowed, and further continuing the polymerization.</p> |
申请公布号 |
CA1246789(A) |
申请公布日期 |
1988.12.13 |
申请号 |
CA19840471207 |
申请日期 |
1984.12.28 |
申请人 |
DAI-ICHI KOGYO SEIYAKU CO., LTD. |
发明人 |
YADA, AKIRA;MATSUMOTO, SHUSAKU;KAWAMORI, YOSHIHIRO;SAITO, TAKAO;NISHIYAMA, TADASHI;ADACHI, YOSHITUGU |
分类号 |
C08F2/10;C08F2/50;(IPC1-7):C08F2/10;C08F20/00 |
主分类号 |
C08F2/10 |
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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