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:
Aug. 20, 1985
Filed:
Feb. 16, 1984
Applicant:
Inventors:
Shigeru Sugimori, Fujisawashi, JP;
Tetsuhiko Kojima, Yokohamashi, JP;
Yasuyuki Goto, Yokohamashi, JP;
Toyoshiro Isoyama, Yokohamashi, JP;
Kazunori Nigorikawa, Yokohamashi, JP;
Assignee:
Chisso Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; G02F / ; C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
25229963 ; 2522995 ; 3503 / ; 3503 / ; 2604 / ; 2604 / ; 568329 ; 568331 ;
Abstract
Novel liquid crystal compounds having a large positive dielectric anisotropy value and also a low viscosity and a good stability to heat, light, air and water, and liquid crystal compositions containing the same are provided, which compounds are fluorobenzene derivatives expressed by the general formula ##STR1## wherein n represents 1 or 2, X represents CN or COCH.sub.3, and R represents hydrogen atom or an alkyl group or an alkoxy group each of 1 to 15 carbon atoms.