Title:
WATER ABSORBING RESIN PARTICLES
Document Type and Number:
WIPO Patent Application WO/2020/184389
Kind Code:
A1
Abstract:
Disclosed are water absorbing resin particles that demonstrate a gel leakage test force of 5-14 N as measured by the following method: water absorbing resin particles are allowed to absorb physiological saline that is 29 times the amount of the water absorbing resin particles, while being stirred to prepare a swollen gel; 20 g of the swollen gel is evenly placed into a cylinder having an inner diameter of 5 cm and having a 5 mm-diameter hole in the bottom thereof; the swollen gel in the cylinder is compressed with a jig having a diameter of 4.9 cm, at a rate of 10 mm/min, and the test force applied when a portion of the swollen gel leaks from the hole in the bottom of the cylinder is recorded as the gel leakage test force.
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Inventors:
KAWAHARA TORU (JP)
Application Number:
PCT/JP2020/009479
Publication Date:
September 17, 2020
Filing Date:
March 05, 2020
Export Citation:
Assignee:
SUMITOMO SEIKA CHEMICALS (JP)
International Classes:
C08F8/14; A61F13/15; A61F13/53; C08J3/16
Domestic Patent References:
| WO2016006134A1 | 2016-01-14 | |||
| WO2016006135A1 | 2016-01-14 | |||
| WO2014038324A1 | 2014-03-13 | |||
| WO2006123561A1 | 2006-11-23 | |||
| WO2011086843A1 | 2011-07-21 |
Foreign References:
| JP2016028117A | 2016-02-25 | |||
| JP2016028113A | 2016-02-25 | |||
| JP2006199805A | 2006-08-03 |
Other References:
See also references of EP 3936533A4
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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