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    • 7. 发明授权
    • Polyamines containing acid groups that are useful in papermaking
    • 含有酸性基团的多胺可用于造纸
    • US4166002A
    • 1979-08-28
    • US528324
    • 1974-11-29
    • Wolfgang LehmannGerhard TroemelKurt LeyFriedhelm Muller
    • Wolfgang LehmannGerhard TroemelKurt LeyFriedhelm Muller
    • C08G69/48C08G73/02D21H17/54D21H3/58
    • D21H17/54C08G69/48C08G73/0206C08G73/028
    • Water-soluble polyamines which (a) have an average molecular weight of above 1,000, (b) contain at least one grouping of the formula-- R -- Zin whichZ denotes a --COOH or --SO.sub.3 H group andR represents an alkylene radical, possessing 1 to 7 C atoms, which is optionally substituted and/or interrupted by a carbonamido group,Bonded to a basic nitrogen atom, and which (c) are obtainable either by reaction of water-soluble low molecular polyamines with compounds which introduce acid groups and with compounds which are polyfunctional towards amino groups, or by reaction of water-soluble higher-molecular polyamines, having an amine equivalent of 43 to 700, in which a hydrogen atom is bonded to at least every twentieth basic nitrogen atom, with compounds which introduce acid groups and optionally with compounds which are polyfunctional towards amino groups; a process for their manufacture and their use as agents for increasing the retention of fibres, fillers and pigments in the manufacture of paper and for working-up papermaking machine effluents by filtration, sedimentation and flotation.
    • (a)平均分子量大于1000的水溶性多胺,(b)含有至少一个式-R Z的基团,其中Z表示-COOH或-SO 3 H基团,R代表亚烷基, 具有1至7个C原子,其任选被碳酰氨基取代和/或中断,与碱性氮原子键合,并且(C)可通过与可溶性低分子量聚氨酯反应而获得,所述化合物与引入酸性基团的化合物 以及具有氨基官能团的化合物,或通过反应可溶于高分子量聚氨酯的化合物,其具有43至700的胺等价物,其中氢原子连接至少至少两个基本氮原子,其化合物 引用酸性组合和可选择性地与多官能团组合的氨基酸组成; 其制造方法及其作为代理人的用途,用于增加纸张制造中的纤维,填料和颜料的保留以及通过过滤,沉淀和漂浮的加工造纸机的工作。