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. 30, 2011
Filed:
Feb. 04, 2008
Yasuko Iwakawa, Ibaraki, JP;
Shusaku Nakano, Ibaraki, JP;
Shoichi Matsuda, Ibaraki, JP;
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Abstract
The present invention provides a method of producing an optical laminate that can produce an optical laminate including an applied film containing a lyotropic liquid crystalline compound so that the thickness of the applied film will be approximately uniform. A method of producing an optical laminate having a base material and an applied film, comprising the step of applying a solution containing at least one kind of lyotropic liquid crystalline compound on the base material so as to form the applied film, wherein the concentration of the lyotropic liquid crystalline compound in the solution is lower than the isotropic phase—liquid crystal phase transition concentration. For example, the concentration of the lyotropic liquid crystalline compound in the solution is from (C−18)% by mass to (C−1)% by mass, where Crepresents the isotropic phase-liquid crystal phase transition concentration.