Title:
WATER-ABSORBING RESIN PARTICLES, WATER-ABSORBING ARTICLE, METHOD FOR PRODUCING WATER-ABSORBING RESIN PARTICLES, AND METHOD FOR INCREASING ABSORBED AMOUNT OF ABSORBER UNDER PRESSURE
Document Type and Number:
WIPO Patent Application WO/2020/184388
Kind Code:
A1
Abstract:
Disclosed are water-absorbing resin particles 10a having an expansion maintenance rate, which is calculated by the expression of expansion maintenance rate (%)=(V1/V0)×100, of 98% or greater. V0 is the volume of a swollen gel formed when 1.000±0.001 g of the water-absorbing resin particles 10a absorb 20.0±0.1 g of pure water. V1 is the volume of a swollen gel formed when 1.000±0.001 g of the water-absorbing resin particles 10a absorb 20.0±0.1 g of physiological saline.
Inventors:
NISHIDA MOE (JP)
Application Number:
PCT/JP2020/009478
Publication Date:
September 17, 2020
Filing Date:
March 05, 2020
Export Citation:
Assignee:
SUMITOMO SEIKA CHEMICALS (JP)
International Classes:
C08F20/06; A61F13/53; B01J20/26; B01J20/28; B01J20/30
Domestic Patent References:
| WO2016148153A1 | 2016-09-22 | |||
| WO2011086843A1 | 2011-07-21 |
Foreign References:
| JP2000098198A | 2000-04-07 | |||
| JP2011019896A | 2011-02-03 | |||
| JP2015521678A | 2015-07-30 | |||
| JP2018059124A | 2018-04-12 | |||
| JP2017155194A | 2017-09-07 | |||
| JP2002172139A | 2002-06-18 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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