发明名称 |
GRANULAR WATER ABSORBENT COMPRISING WATER ABSORBING RESIN AS THE MAIN COMPONENT |
摘要 |
<p>It is intended to provide an absorbent article showing an excellent absorptivity in practical use. A granular water absorbent in one embodiment is a granular water absorbent comprising a polyacrylic acid salt-based water absorbent resin as the main component, characterized by satisfying the following requirements (a) and (b): (a) showing an absorption rate under no pressure of artificial urine (A) of 60 g/g or more; and (b) showing an absorption rate increase under no pressure of artificial urine (B) compared with artificial urine (A) of 20% or more. A granular water absorbent in another embodiment is a granular water absorbent comprising a polyacrylic acid salt-based water absorbent resin as the main component, characterized by satisfying the following requirements (c) and (d): (c) showing an absorption rate under no pressure of artificial urine (A) of 60 g/g or more; and (d) the weight-average molecular weight (Mw) of the main chain of the water absorbent resin being 1,000,000 or more and the molecular weight distribution (Mw/Mn) thereof being 3.3 or less.</p> |
申请公布号 |
WO2008126793(A1) |
申请公布日期 |
2008.10.23 |
申请号 |
WO2008JP56789 |
申请日期 |
2008.04.04 |
申请人 |
NIPPON SHOKUBAI CO., LTD.;ADACHI, YOSHIFUMI;TAHARA, RYOKO;WADA, KATSUYUKI |
发明人 |
ADACHI, YOSHIFUMI;TAHARA, RYOKO;WADA, KATSUYUKI |
分类号 |
B01J20/26;A61F13/15;A61F13/49;A61F13/53;C08F2/10;C08F2/48;C08F20/06;C08J3/12 |
主分类号 |
B01J20/26 |
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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