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:
May. 20, 2014
Filed:
Feb. 28, 2008
Applicants:
Takahiro Kitano, Himeji, JP;
Takaaki Kawano, Kyotanabe, JP;
Katsuyuki Wada, Himeji, JP;
Inventors:
Assignee:
Nippon Shokubai Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 20/00 (2006.01); C08F 20/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A particulate water-absorbent agent containing a polyacrylate salt-type water-absorbent resin. The agent has an absorption capacity without load of 28 g/g or higher and has a diffusion absorption index of 1.40 to 10.0 g/g min. The amount of water-soluble components in the agent, with stirring, is 15-60% by mass. The difference between this amount and the amount of water-soluble components, without stirring, is 15-50% by mass. Also disclosed is a method of making the above-identified agent.