发明名称 |
Method for Producing Core-Shell Type Highly Liquid Absorbent Resin Particles |
摘要 |
The present invention discloses a production method of core-shell type highly liquid absorbent resin particles comprising: (1) a first step in which a particle core portion is formed by suspension polymerizing an aqueous solution (e) containing (meth)acrylic acid, a crosslinking agent (c) and an anionic surfactant (d) in a hydrophobic organic solvent (a) containing a nonionic surfactant (b), and (2) a second step in which a shell portion that covers the particle core portion is formed by suspension polymerizing an aqueous solution (g) containing a water-soluble vinyl polymer (f), having carboxyl groups and polymerizable unsaturated double bonds and having a number average molecular weight of 500 to 10000, in a suspension obtained in the first step.
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申请公布号 |
US2007276061(A1) |
申请公布日期 |
2007.11.29 |
申请号 |
US20050576362 |
申请日期 |
2005.01.21 |
申请人 |
TANAKA HISAKAZU;YAMAMURA KAZUO;HASEGAWA YOSHIKI;KAMEI MASAYUKI |
发明人 |
TANAKA HISAKAZU;YAMAMURA KAZUO;HASEGAWA YOSHIKI;KAMEI MASAYUKI |
分类号 |
C08F290/04;A61F13/49;A61F13/53;A61L15/60;B01J20/26;C08F265/02;C08F265/04;C08L83/00 |
主分类号 |
C08F290/04 |
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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