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    • 6. 发明授权
    • Catonic acrylamide polymers and the applications of these polymers
    • 催化丙烯酰胺聚合物和这些聚合物的应用
    • US5292821A
    • 1994-03-08
    • US82773
    • 1993-06-28
    • Toshihiko TakakiKenji TsuboiHiroshi ItohAtsuhiko Nitta
    • Toshihiko TakakiKenji TsuboiHiroshi ItohAtsuhiko Nitta
    • C08F8/44C08F8/20
    • C08F8/44
    • This invention provides cationic acrylamide polymers which are highly effective as paper strength agents, drainage agents and suspension flocculants, and which do not show much temporal deterioration; it also provides a method of manufacturing said polymers wherein the manufacturing equipment is compact and can be installed on site, and the cationicity of the polymers can be modified in a short time.This invention comprises a method of manufacturing cationic acrylamide polymers by reaction, with a hypohalogenite, of a (meth)acrylamide homopolymer, a copolymer of (meth)acrylamide and acrylonitrile, a copolymer of (meth)acrylamide and, N,N-dimethylacrylamide, in a high temperature range of 50.degree.-110.degree. C. for a short time; the polymers manufactured by said process; and paper strength agents, drainage agents and flocculants having these polymers as their principal constituent.
    • 本发明提供了作为纸张强度剂,引流剂和悬浮絮凝剂非常有效的阳离子丙烯酰胺聚合物,并且不显示出太多的时效性; 它还提供了一种制造所述聚合物的方法,其中制造设备紧凑并且可以现场安装,聚合物的阳离子度可以在短时间内被改变。 本发明包括使用(甲基)丙烯酰胺均聚物,(甲基)丙烯酰胺和丙烯腈的共聚物,(甲基)丙烯酰胺和N,N-二甲基丙烯酰胺的共聚物与(甲基)丙烯酰胺均聚物的次卤酸盐反应制备阳离子丙烯酰胺聚合物的方法, 在50度-110摄氏度的高温范围内短时间; 由所述方法制造的聚合物; 和具有这些聚合物作为其主要成分的纸强度剂,引流剂和絮凝剂。
    • 7. 发明授权
    • Cationic acrylamide polymers and the applications of these polymers
    • 阳离子丙烯酰胺聚合物和这些聚合物的应用
    • US5239014A
    • 1993-08-24
    • US725611
    • 1991-07-03
    • Toshihiko TakakiKenji TsuboiHiroshi ItohAtsuhiko Nitta
    • Toshihiko TakakiKenji TsuboiHiroshi ItohAtsuhiko Nitta
    • C08F8/44
    • C08F8/44
    • This invention provides cationic acrylamide polymers which are highly effective as paper strength agents, drainage agents and suspension flocculants, and which do not show much temporal deterioration; it also provides a method of manufacturing said polymers wherein the manufacturing equipment is compact and can be installed on site, and the cationicity of the polymers can be modified in a short time.This invention comprises a method of manufacturing cationic acrylamide polymers by reaction, with a hypohalogenite, of a (meth)acrylamide homopolymer, a copolymer of (meth)acrylamide and acrylonitrile, a copolymer of (meth)acrylamide and N,N-dimethylacrylamide, in a high temperature range of 50.degree.-110.degree. C. for a short time; the polymers manufactured by said process; and paper strength agents, drainage agents and flocculants having these polymers as their principal constituent.
    • 本发明提供了作为纸张强度剂,引流剂和悬浮絮凝剂非常有效的阳离子丙烯酰胺聚合物,并且不显示出太多的时效性; 它还提供了一种制造所述聚合物的方法,其中制造设备紧凑并且可以现场安装,聚合物的阳离子度可以在短时间内被改变。 本发明包括通过与(甲基)丙烯酰胺均聚物,(甲基)丙烯酰胺和丙烯腈的共聚物,(甲基)丙烯酰胺和N,N-二甲基丙烯酰胺的共聚物与(甲基)丙烯酰胺均聚物的次卤酸盐反应制备阳离子丙烯酰胺聚合物的方法, 50°-110℃的高温范围短时间; 由所述方法制造的聚合物; 和具有这些聚合物作为其主要成分的纸强度剂,引流剂和絮凝剂。