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:
Feb. 02, 2010
Filed:
Oct. 28, 2004
Satoru Shoshi, Koshigaya, JP;
Yuki Hongo, Nakano-ku, JP;
Hideo Seno, Kawaguchi, JP;
Lintec Corporation, Tokyo, JP;
Abstract
A hard coat film for optical applications which suppresses formation of defects on the surface derived from roughness of the surface of the substrate film, exhibits excellent scratch resistance and crack resistance and suppresses curling of the substrate film is provided. The film for optical applications comprises (A) a layer of a cured resinwhich comprises 70% by weight or more of a cured resin derived from a difunctional urethane acrylate-based oligomer having a weight-average molecular weight of 3,000 or greater and has a thickness of 5 to 25 μm and (B) a hard coat layerwhich comprises a resin cured by irradiation with an ionizing radiation and has a thickness of 1 to 15 μm, layers (A) and (B) being successively laminated on one face of a substrate film