公开(公告)号：US06444748B1

公开(公告)日：2002-09-03

申请号：US09456514

申请日：1999-12-08

申请人： Maximilian Angel ,  Karl Kolter ,  Axel Sanner

发明人： Maximilian Angel ,  Karl Kolter ,  Axel Sanner

IPC分类号： C08J2900

CPC分类号： C08F220/14 ,  C08F2/22 ,  C08F220/18

摘要： A process for preparing aqueous polymer dispersions by means of a polymerization, conducted in an aqueous system, of at least one free-radically polymerisable ethylenically unsaturated monomer in the presence of a polymerisation initiator, wherein the pH of the aqueous dispersion is adjusted during the preparation process by adding at least two different, basic reagents, at least one of said basic reagents being added in a plurality of stages.

摘要翻译： 在聚合引发剂存在下，通过在水系统中进行至少一种可自由基聚合的烯属不饱和单体的聚合制备聚合物水分散体的方法，其中在制备过程中调节水分散体的pH 通过加入至少两种不同的碱性试剂，至少一种所述碱性试剂以多个阶段加入。