发明名称 |
Process for preparing solid water soluble polymers |
摘要 |
An aqueous gel of a water-soluble polymer containing units of a quaternary ammonium salt of an alkylacrylate or a methacrylate is dehydrated by adding at least one salt of a divalent metal and a strong acid to said gel and then dehydrating said gel.
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申请公布号 |
US4074041(A) |
申请公布日期 |
1978.02.14 |
申请号 |
US19760717742 |
申请日期 |
1976.08.25 |
申请人 |
MITSUBISHI CHEMICAL INDUSTRIES LIMITED |
发明人 |
NISHIKAJI, TAKASHI;WATANABE, KENZO;SAWAYAMA, SHIGERU |
分类号 |
C08F6/12;(IPC1-7):C08F6/12 |
主分类号 |
C08F6/12 |
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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