WATER-SOLUBLE POLYMER, PROCESS FOR THE PRODUCTION OF THE SAME, AND USE THEREOF AS POLYMERIC COAGULANT
申请人:SANYO CHEMICAL INDUSTRIES, LTD.
公开号:EP1069140A1
公开(公告)日:2001-01-17
The object of the present invention is to provide a novel high-performance polymer which can be used as a high molecular weight flocculant in centrifugation or beltpress dewatering, for instance, to give a sufficient degree of dehydration.
The present invention provides a water-soluble vinyl polymer (A) consisting essentially of constituent monomer units of a radical-polymerizable (meth)acrylic monomer (m),
containing a primary amine salt group,
said polymer (A) having colloid equivalent values a, b and c, at pH of 4, 7 and 10, respectively, providing the ratio of b/a in the range of 0.1 - 0.5 and the ratio of c/a in the range of 0 - 0.1.
本发明的目的是提供一种新型高性能聚合物,该聚合物可用作离心脱水或带式压滤脱水中的高分子量絮凝剂,例如,使脱水达到足够的程度。
本发明提供了一种水溶性乙烯基聚合物(A),主要由可自由基聚合的(甲基)丙烯酸单体 (m)的组成单体单元构成、
含有伯胺盐基团、
所述聚合物(A)在 pH 值分别为 4、7 和 10 时具有胶体当量值 a、b 和 c,其中 b/a 的比值范围为 0.1 - 0.5,c/a 的比值范围为 0 - 0.1。