发明名称 |
Preparation of amphoteric water-in-oil self-inverting polymer emulsion |
摘要 |
An amphoteric water-in-oil self-inverting polymer emulsion is prepared which contains a copolymer of (1) a nonionic vinyl monomer and (2) an amphoteric vinyl monomer or a terpolymer of (1) a nonionic vinyl monomer, (2) an anionic vinyl monomer and (3) a cationic vinyl monomer in the aqueous phase, a hydrocarbon oil for the oil phase, a water-in-oil emulsifying agent and an inverting surfactant. An example of a copolymer is a copolymer of (1) a nonionic vinyl monomer such as acrylamide or methacrylamide and (2) an amphoteric vinyl monomer such as a reaction product of dimethylaminoethyl methacrylate and monochloroacetic acid. An example of a terpolymer is a terpolymer of (1) a nonionic vinyl monomer such as acrylamide or methacrylamide, (2) an anionic vinyl monomer such as sodium acrylate and (3) a cationic vinyl monomer such as a triethyl ammonium ethyl methacrylate methosulfate salt. The emulsion is useful in papermaking, treatment of sewage and industrial wastes, drilling muds and secondary and tertiary recovery of petroleum by water flooding.
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申请公布号 |
US4363886(A) |
申请公布日期 |
1982.12.14 |
申请号 |
US19810299619 |
申请日期 |
1981.09.04 |
申请人 |
DIAMOND SHAMROCK CORPORATION |
发明人 |
LIPOWSKI, STANLEY A.;MISKEL, JR., JOHN J. |
分类号 |
C02F1/54;C08J3/09;C08K5/00;C09K8/035;C09K8/588;D21H17/42;D21H17/44;(IPC1-7):C08L27/06;C08L29/02;C08L31/02;C08L39/08 |
主分类号 |
C02F1/54 |
代理机构 |
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地址 |
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