Title:
WATER ABSORBENT RESIN COMPOSITION, ABSORBENT, AND ABSORBENT ARTICLE
Document Type and Number:
WIPO Patent Application WO/2021/220982
Kind Code:
A1
Abstract:
The present invention provides a water absorbent resin composition which suppresses acetaldehyde odor, while being suppressed in coloring with time. A water absorbent resin composition which contains a hydrazide compound carrier and a water absorbent resin, wherein: the degree of yellowing is 10 or less if 2.0 g of this water absorbent resin composition is held at a temperature of 70°C at a relative humidity of 90% for 7 days; and if 10.0 g of this water absorbent resin composition and 900 ml of a nitrogen gas having an acetaldehyde concentration of 20 ppm are sealed in a hermetically sealed bag having a volumetric capacity of 2 liters, the acetaldehyde concentration of the gas in the hermetically sealed bag measured after a lapse of one hour is 15 ppm or less.
Inventors:
MATSUOKA MUTSUMI (JP)
Application Number:
PCT/JP2021/016525
Publication Date:
November 04, 2021
Filing Date:
April 23, 2021
Export Citation:
Assignee:
SUMITOMO SEIKA CHEMICALS (JP)
International Classes:
C08L101/14; A61F13/15; A61F13/53; C08K9/04
Domestic Patent References:
| WO2016103808A1 | 2016-06-30 | |||
| WO2018180864A1 | 2018-10-04 | |||
| WO2018062531A1 | 2018-04-05 |
Foreign References:
| JP2007054328A | 2007-03-08 | |||
| JP2016214557A | 2016-12-22 | |||
| JP2018069140A | 2018-05-10 | |||
| JP2017197884A | 2017-11-02 | |||
| JP2001323155A | 2001-11-20 |
Other References:
See also references of EP 4144803A4
Attorney, Agent or Firm:
TANAKA, Junya et al. (JP)
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