发明名称 |
Copolymers of 3-methacryloyloxy-2-hydroxypropyl trimethylammonium chloride monomer and vinyl monomer. |
摘要 |
<p>The present invention provides a copolymer comprising the polymerization product of two or more vinyl monomers wherein one of the monomers is a mixture of 3-methacryloyloxy-2-hydroxypropyltrialkylamine halide and 2-methacryloyloxy-3-hydroxypropyltrialkylamine halide salt. The copolymer has an intrinsic viscosity greater than about 5 dl/g. The preferred copolymer comprises the polymerization product of acrylamide and a mixture of 3-methacryloyloxy-2-hydroxypropyltrimethylammonium chloride and 2-methacryloyloxy-3-hydroxypropyltrimethylammonium chloride. The copolymers of the present invention are particularly useful as flocculants.</p> |
申请公布号 |
EP0371822(A1) |
申请公布日期 |
1990.06.06 |
申请号 |
EP19890312527 |
申请日期 |
1989.11.30 |
申请人 |
POLYPURE INC. |
发明人 |
LARSON, ERIC HEATH;SHULTES III, BENJAMIN;CHIANG, WILLIAM GONG-JEANN |
分类号 |
B01J31/02;C02F1/54;C08F20/34;C08F220/36 |
主分类号 |
B01J31/02 |
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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