发明授权
US4732968A Process for granulating a water-absorbent resin employing (a) water (b)
inorganic powder & (c) surfactant in an inert solvent
失效
使用（a）水（b）无机粉末和（c）表面活性剂在惰性溶剂中造粒吸水性树脂的方法
- 专利标题： Process for granulating a water-absorbent resin employing (a) water (b) inorganic powder & (c) surfactant in an inert solvent
- 专利标题（中）： 使用（a）水（b）无机粉末和（c）表面活性剂在惰性溶剂中造粒吸水性树脂的方法
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申请号： US937284申请日： 1986-12-03
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公开(公告)号： US4732968A公开(公告)日： 1988-03-22
- 发明人: Shigeji Obayashi , Morio Nakamura , Takushi Yamamoto , Hitoshi Tanaka , Yuji Sakamoto , Yasuhiro Shimada
- 申请人： Shigeji Obayashi , Morio Nakamura , Takushi Yamamoto , Hitoshi Tanaka , Yuji Sakamoto , Yasuhiro Shimada
- 申请人地址： JPX Hyogo
- 专利权人： Seitetsu Kagaku Co., Ltd.
- 当前专利权人： Seitetsu Kagaku Co., Ltd.
- 当前专利权人地址： JPX Hyogo
- 优先权： JPX60-273682 19851204
- 主分类号： A61L15/60
- IPC分类号： A61L15/60 ; C08F2/32 ; C08J3/12 ; C08L101/14
摘要：
A water-absorbent resin having an appropriate particle size and a narrow particle size distribution can be obtained by adding a powdered inorganic material in a proportion of 0.000005-0.2 part by weight to 1 part by weight of a water-absorbent resin containing therein a carboxylate as a component of the polymer with agitation in an inert solvent in the presence of 0.1-5.0 parts by weight of water and 0.005-0.2 part by weight of a surfactant and then removing water and the inert solvent by distillation.
公开/授权文献
- US5305790A Ball valve 公开/授权日：1994-04-26