Absorbent article comprising a modified water absorbent resin
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United States of America Patent
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Jan 25, 2011
Grant Date -
Nov 25, 2010
app pub date -
May 20, 2010
filing date -
Apr 10, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An absorbent member and a method for making such an absorbent member. The absorbent member includes a modified water absorbent resin having good production efficiency, absorbency against pressure, absorption speed, gel strength, and liquid permeability. The modified water absorbent resin may be made by mixing a water absorbent resin, water, and a water-soluble radical polymerization initiator without addition of an ethylenically unsaturated monomer to obtain a water absorbent resin composition, and irradiating the water absorbent resin composition with active energy rays. During irradiation, the surface water content of the water absorbent resin is at least 3.0 wt %.
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