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:
Sep. 04, 2001
Filed:
Jan. 18, 2000
Applicant:
Inventors:
Hitoshi Takai, Kyoto, JP;
Tsuyoshi Yuki, Kyoto, JP;
Shingo Mukaida, Kyoto, JP;
Daisuke Tagawa, Kyoto, JP;
Kenji Tanaka, Kyoto, JP;
Keiji Tanaka, Kyoto, JP;
Satoshi Tamabuchi, Kyoto, JP;
Yoshiyuki Iwasaki, Kyoto, JP;
Assignee:
Sanyo Chemical Industries, Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/16 ; B29B 1/04 ; B01G 2/028 ;
U.S. Cl.
CPC ...
B32B 5/16 ; B29B 1/04 ; B01G 2/028 ;
Abstract
An absorbent composition is produced by drying a mixture obtained by mixing a micro-filler (B) with a hydrogel having a water absorptive resin (A) and water. The hydrogel is produced by performing polymerization to produce the resin (A) and not drying the resin (A) after the polymerization. The absorbent composition has a specific surface area at least 10% lager than that of a reference composition produced by drying the hydrogel without the micro-filler (B).