WATER ABSORBENT RESIN AND METHOD FOR PRODUCING SAME

Title:

WATER ABSORBENT RESIN AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2012/033025

Kind Code:

A1

Abstract:

The main objective of the present invention is to provide: a water absorbent resin having excellent general absorption performance as a water absorbent resin, an adequate particle size and a high particle strength as well as having excellent fiber tenacity and high fluidity as a powder, as properties suitable for a water absorbent for use in a hygienic material; and a method for producing the same. The objective of the present invention is also to provide an absorber and an absorbent article using the water absorbent resin. The water absorbent resin is in a form with an aspect ratio of 1.0 to 3.0 and a median particle size (D) of 100 to 2,000 μm, in which first particles with an aspect ratio of 1.1 to 200 and a median particle size (d) of 50 to 600μm are aggregated.

Inventors:

HANDA MASAYOSHI (JP)
ONODA YUICHI (JP)
UEDA KOJI (JP)

Application Number:

PCT/JP2011/070068

Publication Date:

March 15, 2012

Filing Date:

September 02, 2011

Export Citation:

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Assignee:

SUMITOMO SEIKA CHEMICALS (JP)
HANDA MASAYOSHI (JP)
ONODA YUICHI (JP)
UEDA KOJI (JP)

International Classes:

C08F2/20; A61F13/53; A61L15/60; C08F20/06

Domestic Patent References:

WO2007123188A1

2007-11-01

Foreign References:

JPH03227301A	1991-10-08
JPH03195713A	1991-08-27
JPH09510889A	1997-11-04
JPH0857311A	1996-03-05
JPH01294703A	1989-11-28
JPH02153907A	1990-06-13
JPH03227301A	1991-10-08
JPH0517509A	1993-01-26
JPH0543610A	1993-02-23
JPH11140194A	1999-05-25
JP2008533213A	2008-08-21
JPH02196802A	1990-08-03
JP2002284803A	2002-10-03
JP2004002891A	2004-01-08

Other References: