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. 22, 2017
Filed:
May. 26, 2016
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Mie Nakata, Ibaraki, JP;
Shunsuke Murayama, Ibaraki, JP;
Tomohiro Yamashita, Ibaraki, JP;
Makiko Kimura, Ibaraki, JP;
NITTO DENKO CORPORATION, Ibaraki-shi, JP;
Abstract
A polarizing plate includes: a polyvinyl alcohol-based polarizer; and transparent protective films provided on both surfaces of the polyvinyl alcohol-based polarizer with an adhesive layer interposed between each of the transparent protective films and the polyvinyl alcohol-based polarizer. A first transparent protective film contains a (meth)acrylic resin and an ultraviolet absorber, the (meth)acrylic resin having an unsaturated carboxylic acid alkyl ester unit and a glutarimide unit represented by the general formula (1), having an imidization ratio of 2.5 to 5.0% and an acid value of 0.10 to 0.50 mmol/g, and having an acrylic ester unit of less than 1% by weight. A second transparent protective film contains a cycloolefin-based resin. Rand Reach independently represent hydrogen or an alkyl group; and Rrepresents an alkyl group, a cycloalkyl group, or an aryl group.