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. 22, 2004
Applicants:
Yoshio Okamoto, Aichi, JP;
Chiyo Yamamoto, Aichi, JP;
Inventors:
Yoshio Okamoto, Aichi, JP;
Chiyo Yamamoto, Aichi, JP;
Assignee:
Daicel Chemical Industries, Ltd., Sakai-Shi, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a separating agent for enantiomeric isomers which exhibits high optical resolving power together with solvent resistance. That is, the present invention provides a separating agent for enantiomeric isomers including a polysaccharide derivative such as a carbamate derivative or ester derivative of cellulose or amylose carried on a porous carrier such as silica gel, in which the porous carrier having an epoxy group and part of the hydroxyl groups of the polysaccharide derivative are chemically bonded.