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:
Mar. 09, 2010
Filed:
Aug. 02, 2005
Naoki Sugiyama, Chuo-ku, JP;
Tatsuya Hirono, Chuo-ku, JP;
Masayuki Sekiguchi, Chuo-ku, JP;
JSR Corporation, Tokyo, JP;
Abstract
The polarizing plate of the invention comprises a norbornene resin film, a polyurethane layer, an adhesive layer and a polarizing film which are laminated in this order. The polarizing plate exhibits excellent adhesion between the optical film and the polarizing film, is excellent also in properties such as heat resistance and chemical resistance, rarely suffers delamination and distortion even if it is used for a long period of time, and has high reliability. The polarizing plate can be obtained by, for example, a process comprising steps of forming a polyurethane layer on a surface of a norbornene resin film and bonding a polarizing film to the polyurethane layer through an adhesive.