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:
Oct. 29, 2024
Filed:
Feb. 08, 2018
Toyobo Co., Ltd., Osaka, JP;
Atsushi Yamazaki, Inuyama, JP;
Kyoko Inagaki, Inuyama, JP;
TOYOBO CO., LTD., Osaka, JP;
Abstract
The invention provides a laminated film that has, when being formed as a gas-barrier laminated film provided with an inorganic thin film layer, excellent oxygen gas barrier properties and adhesion between respective layers under normal conditions and, even after being subjected to a moist heat treatment, has good adhesion even when subjected to processing such as printing or lamination The laminated film has (a) a covering layer on at least one surface of a substrate film, wherein the covering layer contains a covering layer resin composition with a resin having an oxazoline group as a constituent component, (b) an inorganic thin film layer on the covering layer, and (c) a protective layer that has a urethane resin and an arithmetic mean roughness of 0.5-2.0 nm in a 2-μm square and is on the inorganic thin film layer. The laminated film has a surface hardness of 350-700 N/mm.