Title:
WATER ABSORBING RESIN PARTICLES, ABSORBENT ARTICLE, METHOD FOR MANUFACTURING WATER ABSORBING RESIN PARTICLES, METHOD FOR FACILITATING PERMEATION OF PHYSIOLOGICAL SALINE SOLUTION INTO ABSORBENT BODY
Document Type and Number:
WIPO Patent Application WO/2020/184386
Kind Code:
A1
Abstract:
Disclosed are water absorbing resin particles having a gel leakage rate of 0 to 20%. The gel leakage rate is determined by a method including: preparing 20g of swollen gel formed from water absorbing resin particles that has absorbed physiological saline, compressing the swollen gel with a weight having a mass of 2,000 g for 30 seconds, and measuring the mass W (g) of the swollen gel which leaked from through-holes in a disk during the compression; and calculating the gel leakage rate (%) using the formula: gel leakage rate (%) = (W/20) × 100.
Inventors:
KAWAHARA TORU (JP)
Application Number:
PCT/JP2020/009468
Publication Date:
September 17, 2020
Filing Date:
March 05, 2020
Export Citation:
Assignee:
SUMITOMO SEIKA CHEMICALS (JP)
International Classes:
A61F13/53; C08G59/42; C08L101/14
Domestic Patent References:
| WO2018180864A1 | 2018-10-04 | |||
| WO2016006135A1 | 2016-01-14 | |||
| WO2011086843A1 | 2011-07-21 |
Foreign References:
| JP2017155194A | 2017-09-07 | |||
| JP2016028131A | 2016-02-25 | |||
| JP2006199805A | 2006-08-03 |
Other References:
"Pulp and Paper Test Method", 2000, JAPAN TECHNICAL ASSOCIATION OF PULP AND PAPER INDUSTRY
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
Download PDF: