发明申请
- 专利标题： ABSORBENT RESIN PARTICLE, PROCESS FOR PRODUCING THE SAME, ABSORBER CONTAINING THE SAME, AND ABSORBENT ARTICLE
- 专利标题（中）： 吸收树脂颗粒，其制造方法，含有其的吸收剂和吸收性物品
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申请号： US13142098申请日： 2009-12-24
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公开(公告)号： US20110301560A1公开(公告)日： 2011-12-08
- 发明人: Takashi Fujimura , Hidenobu Ishida
- 申请人： Takashi Fujimura , Hidenobu Ishida
- 申请人地址： JP Tokyo
- 专利权人： SAN-DIA POLYMERS, LTD.
- 当前专利权人： SAN-DIA POLYMERS, LTD.
- 当前专利权人地址： JP Tokyo
- 优先权： JP2008-333207 20081226
- 国际申请： PCT/JP2009/007174 WO 20091224
- 主分类号： A61L15/22
- IPC分类号： A61L15/22 ; C08F220/06
摘要：
There is provided an absorbent resin particle having an absorption rate pattern where the rate is slow in the initial stage, moderate in the middle stage, and fast in the late stage, and there is also provided an absorbent article free from problems such as skin irritation by using the absorbent resin particle.The present invention relates to an absorbent resin particle comprising a crosslinked polymer (A1) including, as an essential constituent unit, a water-soluble vinyl monomer (a1) and/or a hydrolyzable vinyl monomer (a2), and a crosslinking agent (b), wherein, in a measurement method of swelled volume per 1 g of the absorbent resin particle against physiological saline, a ratio (t2/t1) of the time (t2) until swelled volume reaches 40 ml to the time (t1) until the swelled volume reaches 5 ml is 5 to 20.
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