发明名称 |
Water-absorbent agent, method for production thereof, and water-absorbent composition |
摘要 |
A method for the production of a water-absorbent agent comprises mixing an absorbent resin containing a carboxyl group with an additive soluble in the aqueous solution of at least one member selected from the group consisting of inorganic acids, organic acids, and polyamino acids and a cross-linking agent capable of reacting with the carboxyl group. A water-absorbent agent obtained by adding from 0.005 to 8 parts by weight of an epoxy compound to 100 parts by weight of a water-absorbent resin, exhibiting an absorption capacity without load of at least 45 (g/g), an absorption capacity under load of 20 g/cm2 of not less than 30 (ml/g) and having a residue amount of an epoxy compound of not more than 2 ppm. A water-absorbent composition comprises a polyamino acid (salt) and a water-absorbent resin containing a carboxyl group.
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申请公布号 |
US2003092849(A1) |
申请公布日期 |
2003.05.15 |
申请号 |
US20020229111 |
申请日期 |
2002.08.28 |
申请人 |
DAIROKU YORIMICHI;NAGASUNA KINYA;MASUDA YOSHIHIKO;HARADA NOBUYUKI;MOTONO YOSHIHIRO;ISHIZAKI KUNIHIKO |
发明人 |
DAIROKU YORIMICHI;NAGASUNA KINYA;MASUDA YOSHIHIKO;HARADA NOBUYUKI;MOTONO YOSHIHIRO;ISHIZAKI KUNIHIKO |
分类号 |
A61L15/24;A61L15/60;C08J3/24;(IPC1-7):C08F120/02 |
主分类号 |
A61L15/24 |
代理机构 |
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代理人 |
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地址 |
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