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:
Aug. 10, 2010
Filed:
Aug. 24, 2006
Masatomi Irisawa, Saitama, JP;
Tatsunori Kobayashi, Saitama, JP;
Mineki Hasegawa, Tokyo, JP;
Adeka Corporation, Tokyo, JP;
Abstract
A polymerizable liquid crystal compound of formula (1). The compound has high optical (refractive index) anisotropy (Δn), exhibits a liquid crystal phase at room temperature (having a broad liquid crystal phase temperature range) without crystallization, has high solubility in cyclohexanone, methyl ethyl ketone or like organic solvents, exhibits excellent coating properties and orientation properties, and, after polymerization, has high transparency. wherein Rand Reach represent hydrogen, a methyl group or halogen; rings A to C each represent a benzene ring, a naphthalene ring, etc.; at least one of rings A to C is a fused ring; X, Y, and Z each represent a C1 to C6 alkyl group, etc.; L, L, and Leach represent —COO—, —OCO—, —O(CH)— (j=1 to 8), etc.; n is 0 or 1, and a to c are numbers such that the polymerizable liquid crystal compound may have at least one of X, Y, and Z.