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:
Jul. 04, 2006
Filed:
Oct. 14, 2004
Takashi Seki, Yokohama, JP;
Takuya Matsumoto, Yokohama, JP;
Toru Nakamura, Yokohama, JP;
Hitoshi Mazaki, Yokohama, JP;
Takashi Seki, Yokohama, JP;
Takuya Matsumoto, Yokohama, JP;
Toru Nakamura, Yokohama, JP;
Hitoshi Mazaki, Yokohama, JP;
Nippon Oil Corporation, Tokyo, JP;
Abstract
Liquid crystalline compositions contain no functional group the synthesis of which is difficult, such as (meth)acrylate and epoxy group and comprise (A) an oxetane compound having an optically active portion, (B) a side chain liquid crystalline polymeric substance having an oxetanyl group, and (C) a photo cation generator and/or a thermal cation generator. The use of the composition can provide a cholesteric-aligned liquid crystal film with excellent alignment retention properties after being fixed in the liquid crystal state and mechanical strength, without employing any complicated step such as photo irradiation under an inert gas atmosphere.