发明名称 |
METHOD FOR PRODUCING A WATER-ABSORBENT RESIN |
摘要 |
A method is disclosed for producing a water-absorbent resin by a reversed-phase suspension polymerization method, wherein an odor originating from a raw material component, in particular, a petroleum hydrocarbon dispersion medium, is further reduced as compared with a water-absorbent resin obtained by a conventional method, and a water-absorbent resin obtained by the method. More specifically, a method is disclosed for producing a water-absorbent resin by performing a reversed-phase suspension polymerization of a water-soluble ethylenically unsaturated monomer in a petroleum hydrocarbon dispersion medium, comprising adding and dispersing an aqueous solution of a water-soluble ethylenically unsaturated monomer containing a hydrophilic polymeric dispersion agent to a petroleum hydrocarbon dispersion medium in the presence of a surfactant under stirring, and performing a reversed-phase suspension polymerization using a radical polymerization initiator, and a water-absorbent resin obtained by the method. |
申请公布号 |
US2014179886(A1) |
申请公布日期 |
2014.06.26 |
申请号 |
US201114125818 |
申请日期 |
2011.07.20 |
申请人 |
Yokoyama Hideki;Heguri Atsushi;Maeda Nobuhiro |
发明人 |
Yokoyama Hideki;Heguri Atsushi;Maeda Nobuhiro |
分类号 |
C08F120/06 |
主分类号 |
C08F120/06 |
代理机构 |
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代理人 |
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主权项 |
1. A method for producing a water-absorbent resin by performing a reversed-phase suspension polymerization of a water-soluble ethylenically unsaturated monomer in a petroleum hydrocarbon dispersion medium, comprising adding and dispersing an aqueous solution of a water-soluble ethylenically unsaturated monomer containing a hydrophilic polymeric dispersion agent to a petroleum hydrocarbon dispersion medium in the presence of a surfactant under stirring, and performing a reversed-phase suspension polymerization using a radical polymerization initiator. |
地址 |
Himeji-shi JP |