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:
Dec. 03, 2013
Filed:
Jan. 27, 2005
Applicants:
Naoaki Yamasaki, Nobeoka, JP;
Kazuhiro Obae, Nobeoka, JP;
Ichiro Ibuki, Nobeoka, JP;
Inventors:
Assignee:
Asahi Kasei Chemicals Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 9/14 (2006.01); A61K 9/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A porous cellulose aggregate which has a secondary aggregation structure formed by the aggregation of primary cellulose particles, has a pore volume within a particle of 0.265 cm/g to 2.625 cm/g, contains I type crystals, has an average particle diameter of more than 30 μm and 250 μm or less, has a specific surface area of 1.3 to 20 cm/g, has an angle of repose of 25° or more and less than 44°, and has the property that it collapses in water.