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:
Feb. 27, 2018
Filed:
Mar. 29, 2017
Daicel Corporation, Osaka-shi, Osaka, JP;
DAICEL CORPORATION, Osaka-Shi, JP;
Abstract
Provided are a novel amylose derivative which exhibits excellent optical isomer separability and which is suitable as an optical isomer separating agent; and an optical isomer separating agent containing the amylose derivative. A task is attained by an amylose derivative having a constituent unit represented by formula (I) below; In below formula (I), Ris a substituent group represented by any of formulae 1 to 3 below, and Ris a substituent group represented by any of formulae a to g below. Rand Rare different substituent groups. A combination of Rand Rin which Ris a substituent group represented by structural formula 3 and Ris a substituent group represented by structural formula c is excluded from the formula (I).