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Title:
WATER ABSORBENT RESIN PARTICLE, ABSORBER, ABSORBENT ARTICLE, METHOD FOR MEASURING PERMEATION RETENTION RATE OF WATER ABSORBENT RESIN PARTICLE, AND METHOD FOR PRODUCING WATER ABSORBENT RESIN PARTICLE
Document Type and Number:
WIPO Patent Application WO/2020/184394
Kind Code:
A1
Abstract:
Provided is a water absorbent particle having at least 10% of a permeation retention rate which is represented by the following formula (Permeation retention rate (%)=(Swollen gel liquid passing speed/Dry powder liquid passing speed)×100), using a dry powder liquid passing speed measured by a method including steps (A), (B) and (C) in this order and a swollen gel liquid passing speed measured by a method including steps (A), (B), (D), and (E) in this order.

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Inventors:
NISHIDA MOE (JP)
Application Number:
PCT/JP2020/009507
Publication Date:
September 17, 2020
Filing Date:
March 05, 2020
Export Citation:
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Assignee:
SUMITOMO SEIKA CHEMICALS (JP)
International Classes:
B01J20/26; A61F13/49; A61F13/53; B01J20/28
Domestic Patent References:
WO2017002972A12017-01-05
WO2011086843A12011-07-21
Foreign References:
JP2005344103A2005-12-15
JP2010540207A2010-12-24
EP3412711A12018-12-12
JP2018164732A2018-10-25
JP2014515987W
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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