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:
Jul. 08, 2014
Filed:
Nov. 09, 2010
Applicants:
Kazuhiro Obae, Tokyo, JP;
Hideki Amakawa, Tokyo, JP;
Ichiro Ibuki, Tokyo, JP;
Inventors:
Assignee:
Asahi Kasei Chemicals Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/14 (2006.01); A61K 9/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A porous cellulose aggregate characterized by having a secondary aggregate structure resulting from aggregation of primary cellulose particles, having a pore volume within a particle of 0.265 to 2.625 cm/g, containing I-type crystals and having an average particle size of over 30 to 250 μm, a specific surface area of 0.1 to less than 20 m/g, a repose angle of 25° to less than 44° and a swelling degree of 5% or more, and characterized by having the property of disintegrating in water.