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:
Mar. 27, 2007
Filed:
Dec. 24, 2003
Hirotama Fujimaru, Himeji, JP;
Katsuyuki Wada, Himeji, JP;
Kunihiko Ishizaki, Suita, JP;
Motohiro Imura, Nara, JP;
Hiroki Inoue, Kyoto, JP;
Hirotama Fujimaru, Himeji, JP;
Katsuyuki Wada, Himeji, JP;
Kunihiko Ishizaki, Suita, JP;
Motohiro Imura, Nara, JP;
Hiroki Inoue, Kyoto, JP;
Nippon Shokubai Co., Ltd., Osaka, JP;
Abstract
A water-absorbent resin composition excelling in an absorption capacity under pressure, a first transition of initial absorption, and the small amount of rewet is provided. It comprises a water-absorbent resin obtained by aqueous solution polymerization and by reversed-phase suspension or reversed-phase emulsion polymerization and shows a CSF of not less than 20 g/g or an AAP of not less than 20 g/g or an SFC of not less than 10 (unit: 10×cm×s×g). The gaps among resin particles owing to the difference in shape form optimum gap widths for the sake of capillarity. The resin composition consequently formed, therefore, manifests such excellent properties without the influences of a surfactant or an emulsifier.