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:
Jun. 14, 1994
Filed:
May. 19, 1993
Applicant:
Inventors:
Yoshiichi Suzuki, Tokyo, JP;
Toru Ohde, Tokyo, JP;
Assignee:
Showa Shell Sekiyu Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ; C09K / ; C07C / ;
U.S. Cl.
CPC ...
25229968 ; 25229901 ; 25229964 ; 25229965 ; 25229966 ; 25229967 ; 564161 ;
Abstract
A novel antiferroelectric liquid crystal compound is disclosed which is represented by the following formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently selected from C.sub.3 -C.sub.18 alkyl groups, respectively, Rf is a lower fluoroalkyl group, X is a group selected from the group consisting of --O--, --COO--, --OOC--, and --CO--, or a single bond, (A) and (B) each is independently a group selected from the group consisting of phenyl, biphenyl, and naphthalene group which may be substituted with a halogen atom, and C having an asterisk indicates an asymmetric carbon atom.