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. 03, 1995
Filed:
Jan. 21, 1994
Applicant:
Inventors:
Assignee:
Dow Corning Limited, Barry, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F / ; C09K / ; C09K / ;
U.S. Cl.
CPC ...
359103 ; 25229901 ; 25229966 ;
Abstract
A liquid crystal device wherein the liquid crystal material exhibits a smectic phase and cromprises at least one siloxane compound having the general formula ##STR1## in which R=alkyl, alkenyl or aryl, Q represents a monovalent group, for example alkyl --(CH.sub.2).sub.n OM', a chiral organic group, a dye group, a non-linear optic group or the group --(CH.sub.2).sub.n L in which L represents a siloxane group, M and M' each represent ##STR2## wherein A is carboxyl, T is CN, F or Cl and p=0 or 1, provided that when T is F or Cl x has a value of at least 2.