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:
Apr. 26, 2022
Filed:
Mar. 31, 2017
Applicant:
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/48 (2006.01); G02B 5/30 (2006.01); G02B 1/14 (2015.01); G02F 1/1335 (2006.01); C08F 220/28 (2006.01); C08F 222/10 (2006.01);
U.S. Cl.
CPC ...
C08F 2/48 (2013.01); G02B 1/14 (2015.01); G02B 5/30 (2013.01); G02B 5/3075 (2013.01); G02F 1/133528 (2013.01); C08F 220/286 (2020.02); C08F 222/1025 (2020.02); C08F 222/1061 (2020.02); G02F 2201/50 (2013.01); G02F 2202/28 (2013.01);
Abstract
According to one aspect of the present invention, a base material-less protective film used in a polarizing plate is provided, wherein the protective film comprises a core layer containing a resin made of a cured product, and an adhesion-improving layer provided on one surface of the core layer, and wherein a surface of the adhesion-improving layer forms one surface of the protective film, and the thickness of the protective film is less than 40 μm, and the tensile break strength of the protective film is 30 N/mmor more.