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:
Oct. 01, 1991
Filed:
Mar. 20, 1990
Applicant:
Inventors:
Shinichi Nishiyama, Ichihara, JP;
Hideo Yamaoka, Ichihara, JP;
Tooru Yamanaka, Ichihara, JP;
Tohru Yamada, Ichihara, JP;
Assignee:
Mitsui Petrochemical Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; C07C / ; G02F / ;
U.S. Cl.
CPC ...
25229962 ; 560 56 ; 359103 ;
Abstract
In accordance with the present invention, there is provided substituted naphthalene compounds represented by the following formula [I]. ##STR1## wherein R.sup.1 represents alkyl of 1-18 carbon atoms, R.sup.2 represents alkyl of 1-18 carbon atoms, X is a group represented by --OCH.sub.2 -- or --CH.sub.2 CH.sub.2 --, and n is 0 or 1. In accordance with the invention, moreover, there is provided liquid crystal compositions containing the substituted naphthalene compounds represented by the above-mentioned formula [I].