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:
Jul. 14, 2015
Filed:
Sep. 30, 2009
Hiroyuki Uebayashi, Otsu, JP;
Takashi Arai, Otsu, JP;
Kusato Hirota, Otsu, JP;
TORAY INDUSTRIES, INC., Tokyo, JP;
Abstract
A gas barrier film is provided comprising a base film of polyester provided, on at least one of its surfaces, with a deposited layer of an inorganic compound and a gas barrier layer of a copolymer resin composition formed on the former. The gas barrier layer is produced from a mixture of a base material composed at least of the two components of (a) an unsaturated nitrile that accounts for 10% to 30% by mass of the copolymer and (b) an unsaturated compound with a hydroxyl group that accounts for 30% to 70% by mass of the copolymer; (c) a curing agent that contains a compound with an isocyanate group; and (d) a compound that has either two or more carboxylic acid groups or one or more carboxylic anhydride groups.