发明申请
- 专利标题: Method for production of hydrophilic resin
- 专利标题(中): 生产亲水性树脂的方法
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申请号: US11014969申请日: 2004-12-20
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公开(公告)号: US20050113542A1公开(公告)日: 2005-05-26
- 发明人: Yoshio Irie , Katsuhiro Kajikawa , Kunihiko Ishizaki , Takumi Hatsuda
- 申请人: Yoshio Irie , Katsuhiro Kajikawa , Kunihiko Ishizaki , Takumi Hatsuda
- 优先权: JP4-150425(PATENT) 19920610; JP4-272789(PATENT) 19921012
- 主分类号: A61L15/60
- IPC分类号: A61L15/60 ; C08F20/04 ; C08F20/06
摘要:
In the production of an acrylate polymer by the steps of preparing a water-soluble unsaturated monomer having a ratio of neutralization in the range of 30 to 100 mol % and containing 50 to 100 mol % of an acrylate and then polymerizing the monomer, a method for the production of a hydrophilic resin which comprises using a water-soluble unsaturated monomer having a β-hydroxy propionic acid (salt) content of not more than 1,000 ppm. The hydrophilic resin obtained by this method exhibits excellent physical properties and has only a small residual monomer content. Further, a residual monomer content neither occurs nor increases in any using conditions.
公开/授权文献
- US07078458B2 Method for production of hydrophilic resin 公开/授权日:2006-07-18
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