公开(公告)号：US08541020B2

公开(公告)日：2013-09-24

申请号：US10485829

申请日：2002-09-17

申请人： Shuichi Sasahara ,  Kazuhiro Yosikawa ,  Shinichi Wakamatsu ,  Takahiko Fujita

发明人： Shuichi Sasahara ,  Kazuhiro Yosikawa ,  Shinichi Wakamatsu ,  Takahiko Fujita

IPC分类号： A61F13/00

CPC分类号： C08L71/02 ,  A61K9/0009 ,  A61K9/06 ,  A61K47/10 ,  A61K47/24 ,  A61K47/34 ,  C08G65/2654 ,  C08G65/34 ,  C08L101/14 ,  C08L2666/02 ,  C09J133/24 ,  C08L2666/04 ,  C08L2666/22 ,  C08L2666/14

摘要： The invention aims at providing a polymeric hydrogel which is highly resistant to water washing.The aim is attained by a polymeric hydrogel comprising a polymeric matrix formed by copolymerizing a nonionic polymerizable monomer with a crosslinking monomer, characterized in that the polymeric matrix contains a wetting agent and water, at least 50 wt % of the wetting agent is constituted of a polymer prepared by polymerizing a polyhydric alcohol monomer component containing a trihydric or more alcohol monomer, and the polymer is a water-soluble one which has an average molecular weight of 150 to 4000 and satisfies the relationship: {(number of ether groups in the polymer+number of hydroxyl groups in the polymer)/number of carbon atoms present in the polymer}≧1/3.

摘要翻译： 本发明旨在提供一种高度抗水洗的聚合物水凝胶。 目的是通过聚合物水凝胶实现的，所述聚合物水凝胶包含通过使非离子可聚合单体与交联单体共聚而形成的聚合物基质，其特征在于所述聚合物基质含有润湿剂和水，所述润湿剂的至少50重量％由 通过聚合含有三元醇或更多醇单体的多元醇单体组分制备的聚合物，该聚合物是平均分子量为150至4000的水溶性聚合物，并且满足以下关系：{（聚合物中的醚基数 +聚合物中的羟基数）/存在于聚合物中的碳原子数}> = 1/3。