发明授权
US4920202A Method for production of hydrophilic polymer from hydrated gel polymer
失效
从水合凝胶聚合物制备亲水聚合物的方法
- 专利标题： Method for production of hydrophilic polymer from hydrated gel polymer
- 专利标题（中）： 从水合凝胶聚合物制备亲水聚合物的方法
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申请号： US187866申请日： 1988-04-29
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公开(公告)号： US4920202A公开(公告)日： 1990-04-24
- 发明人: Yoshio Irie , Kaoru Iwasaki , Takumi Hatsuda , Kazumasa Kimura , Nobuyuki Harada , Kunihiko Ishizaki , Tadao Shimomura , Teruaki Fujiwara
- 申请人： Yoshio Irie , Kaoru Iwasaki , Takumi Hatsuda , Kazumasa Kimura , Nobuyuki Harada , Kunihiko Ishizaki , Tadao Shimomura , Teruaki Fujiwara
- 申请人地址： JPX Osaka
- 专利权人： Nippon Shokubai Kagaku Kogyo Co., Ltd.
- 当前专利权人： Nippon Shokubai Kagaku Kogyo Co., Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX62-104764 19870430
- 主分类号： C08F6/00
- IPC分类号： C08F6/00
摘要：
A method for the production of a hydrophilic polymer having a small residual monomer content from a hydrated gel polymer, which method comprises drying said hydrated gel polymer by contact thereof with a gas containing at least steam and having a dew point in the range of 50.degree. to 100.degree. C. at a temperature in the range of 80.degree. C. to 250.degree. C., and a hydrophilic polymer obtained therefrom.
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