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Title:
WATER-ABSORBING AGENT AND METHOD FOR PRODUCING SAME, AND ABSORBENT ARTICLE PRODUCED USING WATER-ABSORBING AGENT
Document Type and Number:
WIPO Patent Application WO/2017/170501
Kind Code:
A1
Abstract:
Provided is a water-absorbing agent which has an excellent ability to absorb water and hold the water and also has an excellent liquid-sucking ability. The water-absorbing agent contains a polyacrylic acid (salt)-type water-absorbable resin as the main component, and meets all of the following physical requirements (a) to (e): (a) the weight average particle diameter (D50) is 300 μm or more and less than 400 μm; (b) the content of particles each having a particle diameter of 600 μm or more and less than 850 μm is less than 10% by weight; (c) the average gap radius is 100 μm or more and less than 180 μm; (d) the CRC is 28 g/g or more and less than 34 g/g; and (e) the AAP is 24 g/g or more.

Inventors:
KIMURA KAZUKI (JP)
TANAKA NOBUYA (JP)
TANAKA YUKI (JP)
TAKEDA DAISUKE (JP)
Application Number:
PCT/JP2017/012562
Publication Date:
October 05, 2017
Filing Date:
March 28, 2017
Export Citation:
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Assignee:
NIPPON CATALYTIC CHEM IND (JP)
International Classes:
B01J20/26; A61F13/53; A61L15/24; A61L15/60; B01J20/30; C08F20/06; C08J3/12; C08J3/24; C08L33/02
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Other References:
P. K. CHATTERJEE: "ABSORBENCY", ELSEVIER, pages: 36 - 37
See also references of EP 3437729A4
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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