| 发明名称 |
ANTIFOAM COMPOSITIONS CONTAINING POLYMERS AND METHODS OF USE THEREOF |
| 摘要 |
A composition and method for the control of foaming in the black liquor of a papermaking operation comprising at least one conventional defoamer and at least one polymer selected from the group consisting of a polyethyleneimine, a condensation product of dimethylamine plus epichlorohydrin, and a terpolymer of epichlorohydrin plus dimethylamine plus ethylenediamine.
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| 申请公布号 |
WO9735067(A1) |
申请公布日期 |
1997.09.25 |
| 申请号 |
WO1997US03902 |
申请日期 |
1997.03.13 |
| 申请人 |
BETZDEARBORN INC. |
发明人 |
NGUYEN, DUY, T.;HENDRICKS, WILLIAM, A. |
| 分类号 |
B01D19/04;C02F1/56;C02F9/00;C08G73/02;D21C3/28;(IPC1-7):D21F1/66;C08L63/00;C08K5/06;C08K5/01 |
主分类号 |
B01D19/04 |
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