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:
Dec. 16, 2025
Filed:
Sep. 29, 2020
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Tsuyoshi Suzuki, Tokyo, JP;
Shohei Okumura, Tokyo, JP;
Shunsuke Furuya, Tokyo, JP;
Hideaki Takahashi, Tokyo, JP;
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Abstract
[Object] To provide a barrier laminate that includes a multilayer substrate with high interlayer adhesiveness to an evaporated film and that has high gas barrier properties. [Solution] A barrier laminate according to the present invention includes a multilayer substrate and an evaporated film, wherein the multilayer substrate includes at least a polypropylene resin layer and a surface coating layer, the polypropylene resin layer is subjected to a stretching process, the surface coating layer contains a resin material with a polar group, and the evaporated film is composed of an inorganic oxide.