发明名称 |
WATER ABSORBING AGENT, PROCESS FOR ITS PRODUCTION, AND ABSORBERS AND ABSORBENT ARTICLES MADE BY USING THE AGENT |
摘要 |
A water absorbing agent comprising a crosslinked polymer including a water-soluble vinyl monomer (a1) and/or a vinyl monomer (a2) that is formed into the water-soluble vinyl monomer (a1) by hydrolysis, and a crosslinking agent (b) as an essential constituting unit, wherein the following formulae (1) and (2) are satisfied; a process for its production, and absorbers and absorbent articles made by the water absorbing agent. <DF NUM="(1)">(Y)≥-1.14 (X) + 69.5 </DF> <DF NUM="(2)">(X) = ((x1)<2> + 4 x (x2)<2>)<1/2> </DF> wherein (x1) denotes a water-retention amount (g/g) of the water absorbing agent after being soaked in a physiological saline for one hour; (x2) denotes an absorption amount (g/g) of the water absorbing agent after being soaked in a physiological saline under loading of 0.9 psi for one hour; and (Y) denotes a liquid permeation speed (ml/min) of a physiological saline after the water absorbing agent is soaked in a physiological saline under loading of 0.3 psi for one hour. The water-absorbing agent enables easy production of absorbent articles exhibiting high absorption performance in any state, and is suitable for use in disposable diapers, sanitary napkins, and other sanitary goods. |
申请公布号 |
EP1457541(A1) |
申请公布日期 |
2004.09.15 |
申请号 |
EP20020781801 |
申请日期 |
2002.11.18 |
申请人 |
SAN-DIA POLYMERS, LTD. |
发明人 |
SATAKE, MUNEKAZU;OHTA, YOSHIHISA |
分类号 |
A61F13/53;A61F13/49;A61L15/22;A61L15/60;B01J20/26;C08F2/44;C08J3/24;(IPC1-7):C09K3/00;C08J3/12 |
主分类号 |
A61F13/53 |
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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