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:
Nov. 19, 2019
Filed:
Mar. 13, 2018
Fujifilm Corporation, Tokyo, JP;
Yui Matsuura, Kanagawa, JP;
Syougo Katano, Kanagawa, JP;
Toshiya Mita, Kanagawa, JP;
Akihiro Ikeyama, Kanagawa, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
An antifogging film includes a film base and a saponified layer. The film base is formed of cellulose triacetate as cellulose acylate. The saponified layer is provided on a first base surface of the film base and serves as a first film surface of the antifogging film. The saponified layer contains saponified cellulose triacetate. The antifogging film is configured such that the first film surface has a contact angle of 20° or less 15 seconds after dropping of pure water thereto. In a case where the amount of acyl groups of the first film surface is X and the amount of acyl groups of a second base surface is Y, an acyl group ratio obtained by X/Y is 0.7 or less.