The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 2019
Filed:
Aug. 30, 2013
Nippon Shokubai Co., Ltd., Osaka, JP;
Manabu Ueda, Himeji, JP;
Takahiro Kitano, Himeji, JP;
Yoshitaka Ikeuchi, Himeji, JP;
Hiroyuki Ikeuchi, Himeji, JP;
Katsuyuki Wada, Himeji, JP;
NIPPON SHOKUBAI CO., LTD., Osaka, JP;
Abstract
A water absorbent resin (water absorbing agent) and method for producing it are provided which improve, in a water absorbent article (in particular, a diaper) including a water absorbent resin as a water absorbing agent, the absolute absorption amount (g), liquid absorbing times (in particular, liquid absorbing times at the second instance and later), re-wet (g), and diffusion distance (%) of the water absorbent article. A particulate water absorbing agent of the present invention has a CRC, a proportion of particles with sizes of 600 μm to 150 μm as defined through a standard-sieve classification, an SST, and the value of the difference between an FST and the SST each within a predetermined range.