发明名称 |
PREPARATION OF WATER-SOLUBLE CROSS-LINKED CATIONIC POLYMERS |
摘要 |
High molecular weight, water-soluble, cross-linked cationic polymers are prepared by reacting amine-functionalized cationic base polymers, in which the monomer units of the base polymer contain from about 0.05 to about 5.0% amine functionalized monomer units and from about 95 to about 99.95% additional monomer units, including cationic monomer units and optional non-cationic monomer units, with an amount of a cross-linking agent, reactive with the amines of the base polymer, providing between about 0.02 to about 3.0 equivalents of cross-linking agent reactive groups per each mole of amine. The polymers are useful as coagulants and as coatings. |
申请公布号 |
EP1124862(B1) |
申请公布日期 |
2004.10.13 |
申请号 |
EP19990946103 |
申请日期 |
1999.09.03 |
申请人 |
CIBA SPECIALTY CHEMICALS WATER TREATMENTS LIMITED |
发明人 |
SONG, ZHIQIANG;SCHRIVER, GEORGE, W.;MAHONEY, DENNIS, M.;TRAPASSO, LOUIS, ERNEST |
分类号 |
B01D39/00;B32B27/00;C08F8/00;C08F226/04;C08F246/00;C08G59/50;C08J3/24;D21H17/45;D21H19/24;D21H21/10;D21H21/16 |
主分类号 |
B01D39/00 |
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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