WATER-ABSORBING RESIN AND ABSORBENT ARTICLE

Title:

WATER-ABSORBING RESIN AND ABSORBENT ARTICLE

Document Type and Number:

WIPO Patent Application WO/2016/006130

Kind Code:

A1

Abstract:

Provided are: a water-absorbing resin which, when used as an absorbent, retains a high water-absorbing ability and has such a property that the liquid to be absorbed is highly diffusible therethrough and can be inhibited from oozing out backward; and an absorbent article formed using an absorbent including the water-absorbing resin. The water-absorbing resin according to the present invention is a water-absorbing resin obtained by polymerizing a water-soluble ethylenic monomer in the presence of an internal crosslinking agent and thereafter crosslinking the polymer with a post-crosslinking agent, characterized in that when subjected to a liquid flow test, the water-absorbing resin has an effective absorbent index (K) indicated by equation (I) of 250 or greater. Effective absorbent index (K) = [(liquid flow amount) (g)]×[(artificial-urine absorption ratio) (g/g)] (I)

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Inventors:

YABUGUCHI HIROKI (JP)
HINAYAMA TETSUHIRO (JP)
HAMA MAOKI (JP)
YOKOYAMA HIDEKI (JP)

Application Number:

PCT/JP2014/079243

Publication Date:

January 14, 2016

Filing Date:

November 04, 2014

Export Citation:

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Assignee:

SUMITOMO SEIKA CHEMICALS (JP)

International Classes:

A61F13/49; C08F2/32; A61F13/53; C08J3/24

Domestic Patent References:

WO2008096713A1

2008-08-14

Foreign References:

JP2012236898A	2012-12-06
JP2008280459A	2008-11-20
JP2009019065A	2009-01-29
JP2002179712A	2002-06-26
JPH11335404A	1999-12-07
JPH1129605A	1999-02-02
JPH09194514A	1997-07-29
JPH08188602A	1996-07-23
JPH0578420A	1993-03-30

Other References: