发明名称 |
Composition and method for water clarification |
摘要 |
Tannin containing polymers, their method of production and methods of using as water treatment agents are disclosed. The polymers are aldehyde-free and comprise copolymers of tannin and a cationic monomer. Another embodiment comprises aldehyde-free polymers of tannin, cationic monomer and at least one monomer selected from the group consisting of an anionic monomer and a nonionic monomer.
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申请公布号 |
US5846436(A) |
申请公布日期 |
1998.12.08 |
申请号 |
US19970801401 |
申请日期 |
1997.02.20 |
申请人 |
BETZDEARBORN INC. |
发明人 |
CHEN, JEN-CHI;CHEN, FU;WALTERICK, JR., GERALD C.;VASCONCELLOS, STEPHEN R. |
分类号 |
C02F1/54;C02F1/56;C08F8/00;C08F289/00;C09D7/00;(IPC1-7):B01D21/01 |
主分类号 |
C02F1/54 |
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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