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. 27, 2008
Filed:
Mar. 29, 2006
Kazuhiko Saigusa, Chiba, JP;
Maiko Ito, Chiba, JP;
Ryushi Shundo, Chiba, JP;
Chisso Corporation, Osaka, JP;
Chisso Petrochemical Corporation, Tokyo, JP;
Abstract
In order to obtain such a liquid crystal thin film having optical anisotropy that suffers less change in optical characteristics thereof under heating to 200° C., the following polymerizable liquid crystal composition is provided as a raw material therefor. The composition contains Compound (1) and at least one of Compound (2) and Compound (3), with a proportion of Compound (1) being from 50 to 99% by weight, a proportion of Compound (2) being from 0 to 50% by weight, and a proportion of Compound (3) being from 0 to 50% by weight: wherein R is alkyl; each of Wand Wis independently hydrogen, chlorine, fluorine or —CH; each of Wand Wis independently hydrogen, chlorine, fluorine, —CHor —CF; Wis alkyl having, alkoxy, chlorine, fluorine, —CN or —OCF; X is a single bond, —CH═CH— or —CHCH—; Z is a single bond, —COO—, —OCO— or —CHCH—; and q is an integer of from 1 to 20.