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:
Dec. 23, 2003
Filed:
Aug. 15, 2000
Applicant:
Inventors:
Assignee:
Qinetiq Limited, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 1/952 ;
U.S. Cl.
CPC ...
C09K 1/952 ;
Abstract
Polymeric compounds of general formula (I) where X, X , X are independently straight or branched chain C alkyl, halogen and H; (a) is a suitable mesogenic group; Z=single covalent bond, oxygen CO , OCO; n=1-20; Y=oxygen, CO , OCO, CH , CHOH, CH O; m=3-10,000. The compounds are liquid crystal polymers useful in liquid crystal devices, sensors, and in non-linear optical devices. The compounds are prepared by polymerization of the oxitane monomer to obtain the side-chain liquid crystalline polyoxitane compound. In this way the mesogenic groups are spaced on every fourth carbon atom in the polymer chain allowing greater mobility for the mesogenic group.