发明名称 |
Cationic monomer delayed addition process |
摘要 |
Water-in-oil emulsions of cationic water-soluble copolymers which are prepared by incorporating only a portion of the cationic monomer in the aqueous phase prior to forming the water-in-oil emulsion in which polymerization will occur, forming the emulsion, adding the balance of the cationic monomer such that essentially no polymerization occurs immediately after the addition, and polymerizing the monomers. Copolymers prepared by this process show improved performance over conventionally prepared cationic copolymers.
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申请公布号 |
US5110864(A) |
申请公布日期 |
1992.05.05 |
申请号 |
US19910747302 |
申请日期 |
1991.08.19 |
申请人 |
EXXON CHEMICAL PATENTS INC. |
发明人 |
ROBINSON, PETER M.;VAN-DET, NGUYEN |
分类号 |
C02F1/54;C08F2/32;D21H17/37;D21H17/45 |
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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