Title:
WATER ABSORBENT RESIN PARTICLES AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2017/057706
Kind Code:
A1
Abstract:
Provided is a method for producing water absorbent resin particles, which is capable of improving the gel strength for the purpose of achieving a good balance between the absorption under load and the rate of liquid permeation through gel. The present invention is a method for producing water absorbent resin particles, which is characterized by comprising a step wherein a monomer composition containing a water-soluble vinyl monomer (a1) and/or a vinyl monomer (a2) that turns into a water-soluble vinyl monomer (a1) by means of hydrolysis and a crosslinking agent (b) is polymerized in the presence of at least one organic typical element compound selected from the group consisting of organic iodine compounds, organic tellurium compounds, organic antimony compounds and organic bismuth compounds.
Inventors:
MATSUBARA YUSUKE (JP)
MIYAJIMA TORU (JP)
MIYAJIMA TORU (JP)
Application Number:
PCT/JP2016/079081
Publication Date:
April 06, 2017
Filing Date:
September 30, 2016
Export Citation:
Assignee:
SDP GLOBAL CO LTD (JP)
International Classes:
C08F4/40; A61F13/15; A61F13/53; A61L15/26; A61L15/60; C08F2/44; C08F220/06; C08J3/12
Domestic Patent References:
| WO2007119884A1 | 2007-10-25 |
Foreign References:
| JP2012206038A | 2012-10-25 | |||
| JP2001129311A | 2001-05-15 | |||
| JP2005075982A | 2005-03-24 | |||
| JP2001354721A | 2001-12-25 |
Other References:
See also references of EP 3357937A4
Attorney, Agent or Firm:
FURUTANI, Shinya (JP)
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