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1. 发明授权

US5840804A Crosslinked water-soluble polymer dispersions 失效
标题翻译：交联的水溶性聚合物分散体
公开(公告)号：US5840804A
公开(公告)日：1998-11-24
申请号：US816900
申请日：1997-03-13
申请人： Joachim Carl , Peter Quis , Manfred Braum , Wolfram Desch
发明人： Joachim Carl , Peter Quis , Manfred Braum , Wolfram Desch
IPC分类号： B01D21/01 , C02F1/56 , C08F2/10 , C08F2/18 , C08F2/20 , D21H17/45 , D21H21/10 , C08L33/08
CPC分类号： D21H21/10 , B01D21/01 , C02F1/56 , C08F2/10 , D21H17/455
摘要： A method of producing low-viscosity water-based water-soluble polymer dispersions having a high concentration of the principal substance is achieved by polymerizing the following monomer components, (a1) 50-99.999 wt. % of at least one water-soluble monomer; (a2) 0.001-1 wt. % of at least one crosslinking monomer with at least two ethylenically unsaturated radically polymerizable groups; (a3) 0-30 wt. %, particularly 1-25 wt. %, of at least one hydrophobic monomer; and (a4) 0-25 wt. %, particularly 0.1-15 wt. %, of at least one amphiphilic monomer, in aqueous solution, in the presence of at least one polymer dispersant, to form a polymer (A), where the sum of the amounts of the components represented by the monomers (a1), (a2), (a3), and (a4) is 100 wt. % of the monomers, the weight average molecular weight of the resulting polymer (A) is at least 500,000 Dalton, and polymer (A) is incompatible with the dispersant.
摘要翻译：通过聚合下列单体组分，可以得到具有高浓度主要物质的低粘度水溶性聚合物分散体的方法：（a1）50-99.999重量％％的至少一种水溶性单体; （a2）0.001-1重量％至少一种具有至少两个烯属不饱和自由基聚合基团的交联单体的％（a3）0-30重量％％，特别是1-25wt。％，至少一种疏水性单体; 和（a4）0-25wt。％，特别是0.1-15wt。％的至少一种两亲性单体，在水溶液中，在至少一种聚合物分散剂的存在下，形成聚合物（A），其中由单体（a1），（a2 ），（a3）和（a4）为100重量％。％的单体，所得聚合物（A）的重均分子量为至少500,000道尔顿，聚合物（A）与分散剂不相容。

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