发明名称 |
CATIONIC ACRYLAMIDE EMULSION POLYMER BRINE THICKENERS |
摘要 |
Cationic emulsion polymers useful as thickening agents in aqueous dense brine solutions are disclosed. The cationic polymers are water-in-oil emulsion polymers of acrylamide or methacrylamide and a cationic monomer. The polymers have an intrinsic viscosity in 1.0 N KCl of at least 1 dl/g and preferably have an acrylamide or methacrylamide to cationic monomer molar ratio of about 60:40 to 95:5. |
申请公布号 |
ZA8506370(B) |
申请公布日期 |
1986.06.25 |
申请号 |
ZA19850006370 |
申请日期 |
1985.08.22 |
申请人 |
NATIONAL STARCH AND CHEMICAL CORPORATION |
发明人 |
PATRICIA A. GLEASON;MARIE A. PICCOLINE |
分类号 |
C09K8/02;C08F20/00;C08F20/52;C08F220/56;C09K8/03;C09K8/04;C09K8/12 |
主分类号 |
C09K8/02 |
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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