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    Temporary wet strength resins
    2.
    发明授权
    Temporary wet strength resins 失效
    临时湿强度树脂

    公开(公告)号：US4603176A

    公开(公告)日：1986-07-29

    申请号：US748655

    申请日：1985-06-25

    申请人： David W. Bjorkquist ,  William W. Schmidt

    发明人： David W. Bjorkquist ,  William W. Schmidt

    IPC分类号： C08F8/28 ,  C08F8/44 ,  C08F8/00

    CPC分类号： C08F8/28 ,  C08F2810/20

    摘要： Temporary wet strength resin polymers having the formula ##STR1## wherein A is a polar, non-nucleophilic unit which does not cause said resin polymer to become water-insoluble; B is a hydrophilic, cationic unit which inparts a positive charge to the resin polymer; each R is H, C.sub.1 -C.sub.4 alkyl or halogen;wherein the mole percent of W is from about 5% to about 95%; the mole percent of X is from about 3% to about 65%; the mole percent of Y is from about 1% to about 20%; and the mole percent of Z is from about 1% to about 10%; said resin polymer having a molecular weight of from about 5,000 to about 200,000. These resins, when incorporated into paper products provide good dry and initial wet tensile strength together with excellent wet tensile decay.

    摘要翻译： 具有式“IMAGE”的临时湿强度树脂聚合物，其中A是不引起所述树脂聚合物变成水不溶性的极性非亲核单元; B是一种亲水的阳离子单元，它将树脂聚合物带正电荷; 每个R是H，C 1 -C 4烷基或卤素; 其中W的摩尔百分比为约5％至约95％; X的摩尔百分比为约3％至约65％; Y的摩尔百分比为约1％至约20％; 并且Z的摩尔百分数为约1％至约10％; 所述树脂聚合物具有约5,000至约200,000的分子量。 这些树脂在结合到纸制品中时提供良好的干燥和初始湿拉伸强度以及优异的湿拉伸衰减。