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:
Jan. 09, 1990
Filed:
Jun. 07, 1988
Applicant:
Inventors:
Assignees:
Canon Kabushiki Kaisha, Tokyo, JP;
Nissan Chemical Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ; C08G / ;
U.S. Cl.
CPC ...
25229901 ; 25229966 ; 528272 ; 528308 ; 528331 ;
Abstract
An optically active polymer comprises recurring units of the following formula: ##STR1## wherein l is an integer of 5-1000, n is an integer of 1-3, m is an integer of 2-20, and * denotes the location of an asymmetric center. The optically active polymer has a good mutual solubility with a low-molecular weight mesomorphic compound and is easily mixed with the latter to provide a uniform liquid crystal composition which shows ferroelectricity and better film formability and stability than the low-molecular weight mesamorphic compound alone.