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. 23, 1984
Filed:
Feb. 18, 1983
Applicant:
Inventors:
Assignee:
Merck Patent Gesellschaft mit beschrankter Haftung, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C07C / ;
U.S. Cl.
CPC ...
25229962 ; 25229963 ; 25229966 ; 2604 / ; 2604 / ; 3503 / ;
Abstract
New benzonitriles of formula I ##STR1## wherein R.sup.1 and R.sup.2 are each alkyl groups of 1-8 C atoms, and one of these radicals can also be alkoxy of 1-8 C atoms, and Q is one or two radicals selected from 1,4-phenylene, 1,4-cyclohexylene and/or 1,4-bicyclo[2.2.2] octylene, are very useful for preparing liquid crystallene dielectrics and electrooptical display elements based thereon.