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    • 2. 再颁专利
    • Vinylamine copolymer, flocculating agent and paper strength increasing
agent using the same, as well as process for producing the same
    • 乙烯胺共聚物,絮凝剂和使用其的纸强度增加剂,以及其制备方法
    • USRE34903E
    • 1995-04-11
    • US148384
    • 1993-11-08
    • Takaharu ItagakiMitsuaki ShiragaShigeru SawayamaKohichi Satoh
    • Takaharu ItagakiMitsuaki ShiragaShigeru SawayamaKohichi Satoh
    • C08F8/12C08F8/44C08F226/02
    • C08F226/02C08F8/12C08F8/44C08F2800/10C08F2810/50
    • Disclosed herein is a vinylamine copolymer having the structural units represented by the following formulas (I), (II), (III).[.,.]. .Iadd.and .Iaddend.(IV) .[.and (VI).].: ##STR1## wherein x.crclbar. represents an anion or hydroxyl ion R represents a hydrogen atom or a methyl group, M.sym. represents a hydrogen ion or a monovalent cation, in which the molar fraction of the structural unit (I) is 5 to 85% by mole, the molar fraction of the structural unit (II) is 2 to 85% by mole, the molar fraction of the structural unit (III) is 5 to 80% by mole,.[.the molar fraction of the structural unit (IV) is 0 to 40% by mole,.]. all of said molar fractions being based on the vinylamine copolymer, and the molar fraction of the structural unit .[.(V).]. (.Iadd.IV) is 0 to 8% by mole which is based on the total content of the structural units (III).[.,.]. .Iadd.and .Iaddend.(IV), .[.and (V),.]. a flocculating agent and a paper strength increasing agent using the vinylamine copolymer, and a process for producing the vinylamine copolymer.
    • 本文公开了具有由下式(I),(II),(III)[和]和(IV)[和(VI)]表示的结构单元的乙烯基胺共聚物:表示阴离子或羟基离子R表示氢 原子或甲基,M(+)​​表示氢离子或一价阳离子,结构单元(I)的摩尔分数为5〜85摩尔%,结构单元(II)的摩尔分数为 2〜85摩尔%,结构单元(III)的摩尔分数为5〜80摩尔%[结构单元(IV)的摩尔分数为0〜40摩尔%],所有摩尔分数 基于乙烯胺共聚物,结构单元[(V)](IV)的摩尔分数为0-8%摩尔,其基于结构单元(III)[和]和(IV)的总含量 ),[和(V),]絮凝剂和使用该乙烯胺共聚物的纸强度增加剂,以及制备该乙烯基胺共聚物的方法。
    • 10. 发明授权
    • Separating agent with fluoroalkyl group
    • 分离剂与氟烷基
    • US4696745A
    • 1987-09-29
    • US849764
    • 1986-04-09
    • Takaharu ItagakiHiroshi KusanoEiji MiyataHirohisa Kubota
    • Takaharu ItagakiHiroshi KusanoEiji MiyataHirohisa Kubota
    • C08F8/18B01D15/08C08J9/36
    • C08F8/18B01J20/267B01J20/286
    • A method for producing a separating agent having a fluorine-containing group and a hydrophilic group, wherein a cross-linking component consisting of alkylene di(meth)acrylate and/or glycerine poly(meth)acrylate, and a principal chain component consisting of ester and/or ether having therein a polymerizable vinyl group or isopropenyl group and a functional group are subjected to suspension-polymerization to obtain a cross-linked copolymer, and then the functional group in the copolymer is subjected to chemical modification with a fluorine-containing compound or with both fluorine-containing compound and hydrophilic-group-containing compound. The separating agent of the present invention consists essentially of porous cross-linked copolymer particles having porosity in a range of from 0.5 to 3 ml/g and an average particle size in a range of from 1 to 2,000 .mu.m.
    • 一种具有含氟基团和亲水基团的分离剂的制备方法,其中由二(甲基)丙烯酸亚烷基酯和/或甘油聚(甲基)丙烯酸酯组成的交联组分和由酯组成的主链组分 和/或其中具有可聚合乙烯基或异丙烯基和官能团的醚进行悬浮聚合以获得交联共聚物,然后将共聚物中的官能团用含氟化合物进行化学改性 或含有含氟化合物和含亲水基团的化合物。 本发明的分离剂基本上由孔隙率为0.5〜3ml / g,平均粒径为1〜2000μm的多孔交联共聚物粒子组成。