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. 15, 2014
Filed:
Dec. 26, 2007
Applicants:
Naoyuki Yoshida, Chiba, JP;
Kazushi Ishida, Chiba, JP;
Shuji Sasaki, Chiba, JP;
Ippei Yamaoka, Tokushima, JP;
Inventors:
Naoyuki Yoshida, Chiba, JP;
Kazushi Ishida, Chiba, JP;
Shuji Sasaki, Chiba, JP;
Ippei Yamaoka, Tokushima, JP;
Assignee:
JNC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08B 5/14 (2006.01); C08B 11/10 (2006.01); C08B 11/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides a metal salt of a crosslinked cellulose derivative represented by the following formula (I), wherein the degree of substitution of the hydroxyl group of glucose unit of the crosslinked cellulose derivative by a functional group a is 1 or more.R—O—A  (I){In the formula (I), R represents a crosslinked cellulose residue and A represents a functional group a having cation-exchange ability.}