Process for producing a polymer water-in-oil emulsion
    5.
    发明授权
    Process for producing a polymer water-in-oil emulsion 失效
    聚合物油包水乳液的制备方法

    公开(公告)号:US4618647A

    公开(公告)日:1986-10-21

    申请号:US674951

    申请日:1984-11-26

    IPC分类号: C08F2/32

    CPC分类号: C08F2/32

    摘要: A process for the water-in-oil emulsion polymerization of at least one ethylenically-unsaturated monomer is disclosed wherein a water-in-oil emulsion of said monomer is polymerized in the presence of a first, highly reactive polymerization initiator until a small amount of polymer is present sufficient to provide a shear-stable emulsion, followed by completing the polymerization in the presence of a second, less reactive polymerization initiator.

    摘要翻译: 公开了一种用于至少一种烯键式不饱和单体的油包水乳液聚合方法,其中所述单体的油包水乳液在第一高反应性聚合引发剂的存在下聚合,直到少量 存在足够的聚合物以提供剪切稳定的乳液,然后在第二反应性较低的聚合引发剂的存在下完成聚合。

    High molecular weight water-soluble polymers and flocculation method
using same
    6.
    发明授权
    High molecular weight water-soluble polymers and flocculation method using same 失效
    高分子量水溶性聚合物和絮凝法使用相同

    公开(公告)号:US4599390A

    公开(公告)日:1986-07-08

    申请号:US777458

    申请日:1985-09-18

    IPC分类号: C02F1/54 C08F220/54 C08F30/04

    摘要: A high molecular weight, water-soluble polymer, water-in-oil emulsions thereof and a flocculating process using same are disclosed. The polymer may be represented by the formula: ##STR1## wherein A represents a repeating unit derived from a hydrophobic vinyl monomer having a water-solubility of less than about 5 weight %; R.sub.1 and R.sub.3 are each hydrogen atom or a methyl group; R.sub.4 and R.sub.5 are each a hydrogen atom, a methyl group or an ethyl group; R.sub.2 represents a divalent hydrocarbon group having from 2 to 13 carbon atoms; X represents a monovalent cation; B represents a repeating unit derived from an ethylenically-unsaturated carboxylic acid or a salt thereof; m is about 0.1-10 mole %, n is about 1-40 mole %, p is about 20-98.9 mole %, and q is about 0-40 mole % with the proviso that m+n+p+q=100 mole % and r is a large positive integer.

    摘要翻译: 公开了一种高分子量的水溶性聚合物,其油包水乳液和使用其的絮凝方法。 聚合物可以由下式表示:其中A表示衍生自具有小于约5重量%的水溶性的疏水性乙烯基单体的重复单元; R1和R3各自为氢原子或甲基; R4和R5各自为氢原子,甲基或乙基; R2表示具有2至13个碳原子的二价烃基; X表示一价阳离子; B表示衍生自烯属不饱和羧酸或其盐的重复单元; m为约0.1-10摩尔%,n为约1-40摩尔%,p为约20-98.9摩尔%,q为约0-40摩尔%,条件是m + n + p + q = 100摩尔 %,r为大正整数。