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:
Jan. 03, 1984
Filed:
Sep. 20, 1982
Applicant:
Inventor:
Ying-Yen Hsu, Los Altos, CA (US);
Assignee:
Timex Corporation, Waterbury, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C07D / ; G02F / ;
U.S. Cl.
CPC ...
549374 ; 2522996 ; 25224461 ; 3503 / ; 549373 ;
Abstract
Disclosed are compounds of the formula: ##STR1## wherein R.sub.1 is an alkyl group having 1 to 10 carbon atoms and R.sub.2 is either an alkyl or alkoxy group having 1 to 10 carbon atoms or a cyano group or a nitro group. The compounds of the invention are suitable as liquid crystal materials in electrooptic displays. Specifically, these compounds provide a wide mesomorphic range and a high clearing point when added to nematic liquid crystal mixtures used in multiplexed electrooptical displays.