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:
May. 17, 1994
Filed:
Jan. 22, 1993
Applicant:
Inventors:
David Coates, Wimbourne, GB;
Ian Sage, Dorset, GB;
Simon Greenfield, Dorset, GB;
George W Gray, North Humberside, GB;
David Lacey, North Humberside, GB;
Kenneth J Toyne, North Humberside, GB;
Lawrence K Chan, Middlesex, GB;
Michael Hird, North Humberside, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ; C07C / ;
U.S. Cl.
CPC ...
25229966 ; 570127 ; 25229901 ;
Abstract
Fluorinated 4'-cyano substituted terphenyls of general formula (I), wherein R.sub.1 is selected from alkenyl, H, R, RO and RCO where R is alkyl or perfluoroalkyl containing up to 12 carbon atoms, n is 1, 2 or 3 and the lateral fluorosubstituent(s) may be in any of the available substitution positions are provided. These have liquid crystalline properties and may be used as components of liquid crystal materials.