公开(公告)号：US4158726A

公开(公告)日：1979-06-19

申请号：US864871

申请日：1977-12-27

申请人： Osamu Kamada ,  Kenzoh Watanabe ,  Shigeru Sawayama

发明人： Osamu Kamada ,  Kenzoh Watanabe ,  Shigeru Sawayama

IPC分类号： C08F2/00 ,  C08F2/10 ,  C08F2/16 ,  C08F2/32 ,  C08F20/00 ,  C08F20/34 ,  C08F2/08 ,  C08F2/20 ,  C08F120/00 ,  C08F222/00

CPC分类号： C08F20/34 ,  Y10S526/909 ,  Y10S526/91 ,  Y10S526/923

摘要： Disclosed is a process for preparing a water-soluble bead polymer by dispersing drops of an aqueous solution of water-soluble vinyl monomer in a dispersing medium in the presence of a dispersion stabilizer, and polymerizing the monomer by using monomer selected from the following A and B(a) a compound of the general formula I ##STR1## wherein R.sup.1 is hydrogen or methyl, R.sup.2 and R.sup.3 may be the same or different and each is linear or branched alkyl of from 1 to 4 carbon atoms, R.sup.4 is hydrogen, linear or branched alkyl of from 1 to 8 carbon atoms, hydroxy alkyl of from 1 to 4 carbon atoms, or benzyl, Y is alkylene or hydroxyalkylene each of from 2 to 4 carbon atoms, and X.sup.- is an anion, or(B) a mixture of the compound of the formula I and a water-soluble vinyl monomer copolymerizable with the compound (I), and a cellulose ester or a cellulose ether insoluble in water but soluble in the dispersing medium is used as the dispersion stabilizer.

摘要翻译： 公开了一种通过在分散稳定剂的存在下将水溶性乙烯基单体的水溶液分散在分散介质中并通过使用选自以下A的单体和单体的聚合来制备水溶性珠粒聚合物的方法： B（A）通式I的化合物（I）其中R 1是氢或甲基，R 2和R 3可以相同或不同，并且各自是1至4个碳原子的直链或支链烷基，R4是 氢，1至8个碳原子的直链或支链烷基，1至4个碳原子的羟基烷基或苄基，Y是2至4个碳原子的亚烷基或羟基亚烷基，X-是阴离子，或（ B）式I化合物与可与化合物（I）共聚的水溶性乙烯基单体的混合物和不溶于水但可溶于分散介质的纤维素酯或纤维素醚用作分散稳定剂。