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. 26, 1992
Filed:
Aug. 28, 1990
Applicant:
Inventors:
Assignee:
Showa Shell Sekiyu K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; C07C / ;
U.S. Cl.
CPC ...
25229965 ; 25229901 ; 25229964 ; 560 59 ; 560102 ;
Abstract
A liquid crystal compound represented by formula (I): ##STR1## wherein R.sub.1 represents an alkyl group having from 5 to 18 carbon atoms; R.sub.2 represents an alkyl group having from 4 to 15 carbon atoms; X represents a single bond, --O--, ##STR2## and * indicates an optically active center. The compound exhibits three stable states of molecular orientation.