Water-swellable hydrophilic polymers
    1.
    发明授权
    Water-swellable hydrophilic polymers 失效
    水溶胀性亲水聚合物

    公开(公告)号:US5594083A

    公开(公告)日:1997-01-14

    申请号:US408534

    申请日:1995-03-22

    摘要: Water-swellable hydrophilic polymers which contain polymers prepared by free radical (co)polymerization of one or more hydrophilic monomers of the formula I ##STR1## wherein R.sup.1 is hydrogen, methyl or ethyl,R.sup.2 is the group --COOR.sup.4, the sulphonyl group, the phosphonyl group, the phosphonyl group esterified by (C.sub.1 -C.sub.4)-alkanol or a group of the formula ##STR2## R.sup.3 is hydrogen, methyl, ethyl or the carboxyl group, R.sup.4 is hydrogen, amino or hydroxy-(C.sub.1 -C.sub.4)-alkyl andR.sup.5 is the sulphonyl group, the phosphonyl group or the carboxyl group, or grafting (co)polymerization of one or more hydrophilic monomers of the formula I onto a grafting base, using a free radical initiator which forms three or more free radical sites per molecule.

    摘要翻译: 水溶胀性亲水性聚合物,其含有通过一种或多种式I的亲水性单体(I)的自由基(共)聚合制备的聚合物,其中R 1是氢,甲基或乙基,R 2是基团-COOR 4,磺酰基 (C 1 -C 4) - 烷醇酯化的膦酰基或式(R 3)的基团是氢,甲基,乙基或羧基,R 4是氢,氨基或羟基 - (C 1 -C 4) C4) - 烷基,R5是磺酰基,膦酰基或羧基,或者将一种或多种式I的亲水性单体接枝(共)聚合到接枝基上,使用形成三个或更多个的自由基引发剂 每个分子的自由基位点。

    Process and apparatus for preparing a solution of a non-ferrous metal
sulphonate
    6.
    发明授权
    Process and apparatus for preparing a solution of a non-ferrous metal sulphonate 失效
    制备非金属硫化铝溶液的方法和装置

    公开(公告)号:US5162555A

    公开(公告)日:1992-11-10

    申请号:US625007

    申请日:1990-12-10

    CPC分类号: C07C303/32

    摘要: The invention relates to a process for preparing a solution of a non-ferrous metal sulphonate by reacting a non-ferrous metal with a sulphonic acid, the non-ferrous metal being brought into contact with a sulphonic acid at a temperature of from 20.degree. to 120.degree. C. in the presence of oxygen or oxygen-containing gases.

    摘要翻译: 本发明涉及通过使有色金属与磺酸反应制备有色金属磺酸盐溶液的方法,该有色金属与磺酸接触,温度为20℃至 在含氧气体或含氧气体的情况下为120℃。