发明名称 |
Method for producing improved water-absorbent resins |
摘要 |
A method for easily, inexpensively and efficiently producing an improved water-absorbent resin having a high water absorbency and a high water absorption rate and capable of forming a gel having a high gel strength and nonstickiness, in which water-absorbent resin particles which contain water and a crosslinking agent and are in the semi-swollen state are agitated at an elevated temperature in the presence of an inert inorganic powder to conduct the crosslinking of the resin, while removing water, the water-absorbent resin containing a monomer units having a carboxyl group in the form of free acid or a metal salt.
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申请公布号 |
US4587308(A) |
申请公布日期 |
1986.05.06 |
申请号 |
US19850697759 |
申请日期 |
1985.02.04 |
申请人 |
ARAKAWA KAGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
MAKITA, MUNEHARU;TANIOKU, SHOZO |
分类号 |
A61F13/53;A61F13/15;A61F13/472;A61F13/49;A61L15/60;C08G59/00;C08G59/40;C08J3/24;C08K3/00;C08K3/10;C08K5/07;C08L33/00;C08L33/02;C08L33/04;C08L33/24;C08L51/00;C08L51/02;C08L63/00;(IPC1-7):C08J7/12 |
主分类号 |
A61F13/53 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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