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:
May. 07, 1991
Filed:
Oct. 27, 1989
Applicant:
Inventors:
Assignee:
Adeka Argus Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; C07C / ;
U.S. Cl.
CPC ...
25229961 ; 25229901 ; 25229966 ; 544298 ; 544335 ; 560226 ; 560227 ; 560255 ; 568585 ; 568588 ; 568631 ;
Abstract
An optically active ester compound useful as a component of a ferroelectric liquid crystal composition is represented by the following formula: ##STR1## wherein R is C.sub.1-18 alkyl or C.sub.1-18 alkoxyl; R' is C.sub.1-18 alkyl or C.sub.1-18 haloalkyl; and ##STR2##