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Title:
MEASUREMENT METHOD FOR PROPERTIES OF PARTICULATE ABSORBENT AGENT, AND PARTICULATE ABSORBENT AGENT.
Document Type and Number:
WIPO Patent Application WO/2019/074094
Kind Code:
A1
Abstract:
Provided is a super absorbent polymer having an excellent balance of water absorbency, liquid permeability and low dust generation properties, and a new measurement method which enables the evaluation of said excellent properties. In this measurement method for measuring the absorption speed of a particulate absorbent agent, under conditions in which some or all of a particulate absorbent agent (56) is fixed to the bottom surface of a measuring container (51) having a frame surrounding the bottom surface, a portion of the bottom surface is subjected to pressure by a flat plate (52), an aqueous solution is introduced from a liquid in-flow opening (54) set into the flat plate (52), and the time until the introduced aqueous solution is absorbed by the particulate absorbent agent (56) is measured.

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Inventors:
TORII KAZUSHI (JP)
NODA YUIKA (JP)
TAKAGI DAISUKE (JP)
Application Number:
PCT/JP2018/038092
Publication Date:
April 18, 2019
Filing Date:
October 12, 2018
Export Citation:
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Assignee:
NIPPON CATALYTIC CHEM IND (JP)
International Classes:
G01N13/04; B01J20/26; B01J20/28; C08F220/06; G01N5/00
Domestic Patent References:
WO2014046106A12014-03-27
WO2011126079A12011-10-13
WO2015030129A12015-03-05
WO2015030130A12015-03-05
WO2015129917A12015-09-03
WO2009123197A12009-10-08
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WO2006100300A12006-09-28
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WO2011025013A12011-03-03
WO2011111657A12011-09-15
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WO2009005114A12009-01-08
Foreign References:
JP2016209111A2016-12-15
JP2606988B21997-05-07
JP2005098956A2005-04-14
JP2005334616A2005-12-08
US20050058810A12005-03-17
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Other References:
"Glossary of Technical Terms in Japanese Industrial Standards", 2002
MODERN SUPERABSORBENT POLYMER TECHNOLOGY, 1998, pages 197 - 199
See also references of EP 3696532A4
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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