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. 25, 2025
Filed:
Mar. 25, 2023
Unitika Ltd., Osaka, JP;
UNITIKA LTD., Osaka, JP;
Abstract
A gas barrier laminate with a total thickness of 100 μm or less, including a plastic base material (I) and a gas barrier layer (II) laminated on said plastic base material, wherein (1) plastic base material (I) includes a metal-containing layer including at least one metal and a metal compound and a resin component, (2) the total content of metal and metal compound in said metal-containing layer is 0.1 to 70% by mass, (3) gas barrier layer (II) contains polycarboxylic acid, (4) metal-containing layer and gas barrier layer are laminated so that they are in direct contact with each other, and (5) gas barrier laminate is treated at a temperature of 95° C. for 30 minutes. (5) the gas barrier laminate has an oxygen transmission rate of 300 ml/(m·day·MPa) or less under a temperature of 40° C. and a humidity of 90% RH after hot water treatment for 30 minutes at 95° C.