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:
Aug. 10, 2010
Filed:
Apr. 28, 2006
Applicants:
Yoshio Okamoto, Aichi, JP;
Chiyo Yamamoto, Aichi, JP;
Masami Kamigaito, Aichi, JP;
Inventors:
Assignees:
National University Corporation Nagoya University, Nagoya, Aichi, JP;
Daicel Chemical Industries, Ltd., Osaka-Shi, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08B 37/08 (2006.01); C08B 37/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is a chitosan derivative having a high optical resolving power. Specifically provided is a chitosan derivative represented by the following Formula (I). wherein Rrepresents an aliphatic group or an aromatic group having a carbon number of 1 to 30 which may have a substituent; Rrepresents a substituent originating from an isocyanic acid derivative, carboxylic acid, ester, acid halide, acid amide compound, halide compound, aldehyde, or alcohol; and n is an integer of 5 or more.