专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5241002A Anionic living polymers, their derivatives and composition comprising them 失效
标题翻译：阴离子活性聚合物，它们的衍生物和包含它们的组合物
公开(公告)号：US5241002A
公开(公告)日：1993-08-31
申请号：US845577
申请日：1992-03-04
申请人： Yuji Ohashi , Masataka Ooka
发明人： Yuji Ohashi , Masataka Ooka
IPC分类号： C07C69/54 , C07D309/12 , C08F8/12 , C08F8/20 , C08F20/28
CPC分类号： C08F20/28 , C07C69/54 , C07D309/12 , C08F8/12
摘要： The methacrylic ester polymers produced according to this invention are uniquely distinguished from the radically prepared polymers of similar composition by the fact that both polymers produced: by anionic living polymerization and by deactivating the active terminals of anionic living polymers; contain acetal and/or ketal groups as the blocked hydroxyl groups and have narrow molecular weight distribution. Hydroxyl group-containing methacrylic acid ester polymers are produced by hydrolysis of the above-mentioned polymers. The anionic living polymers are produced in high yields by anionically polymerizing methacrylic acid esters containing an acetal or ketal group in the presence of initiators such as alkaline metal alkoxides. The polymers of the present invention can be used in various fields of applications such as coatings and adhesives. The polymers of the present invention yield curable high solids compositions.
摘要翻译：根据本发明生产的甲基丙烯酸酯聚合物与具有相似组成的自由基制备的聚合物的独特区别在于，两种聚合物通过阴离子活性聚合和通过使阴离子活性聚合物的活性末端失活而产生：含有缩醛和/或缩酮基团作为封端的羟基并具有窄的分子量分布。含羟基的甲基丙烯酸酯聚合物是通过上述聚合物的水解产生的。通过在引发剂如碱金属醇盐的存在下阴离子聚合含有缩醛或缩酮基团的甲基丙烯酸酯，可以高产率生产阴离子活性聚合物。本发明的聚合物可用于各种应用领域，例如涂料和粘合剂。本发明的聚合物产生可固化的高固含量组合物。

IPRDB

热门服务

关于我们

友情链接

联系方式