发明名称 |
Water-absorbing agent and its production process |
摘要 |
<p>The present invention provides: a water-absorbing agent which has high absorption capacity, fast absorption speed, and excellent liquid permeability; and a production process and a use for such a water-absorbing agent. A water-absorbent fine particle having a lower absorption capacity than a water-absorbent resin particle is fixed to the surface of the water-absorbent resin particle, or portions having a higher crosslinking density than internal portions are discontinuously present in the neighborhood of the surface of the water-absorbent resin particle. In addition, the water-absorbing agent is produced using a water-absorbent crosslinking agent which is swellable in itself.</p> |
申请公布号 |
EP0945143(A2) |
申请公布日期 |
1999.09.29 |
申请号 |
EP19990105941 |
申请日期 |
1999.03.24 |
申请人 |
NIPPON SHOKUBAI CO., LTD. |
发明人 |
KATSUHIRO, KAJIKAWA;NAGASUNA, KINYA |
分类号 |
A61L15/60;(IPC1-7):A61L15/42;A61L15/24 |
主分类号 |
A61L15/60 |
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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