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:
Jun. 25, 2019
Filed:
Sep. 28, 2015
Toppan Printing Co., Ltd., Taito-ku, Tokyo, JP;
Toshiya Ishii, Tokyo, JP;
TOPPAN PRINTING CO., LTD., Tokyo, JP;
Abstract
A gas barrier laminate of the present invention includes a biaxially-oriented polypropylene base and an aluminum oxide thin film formed on one surface of the biaxially-oriented polypropylene base. The biaxially-oriented polypropylene base has a plane orientation factor ΔP ranging from 0.005 to 0.020 according to phase-contrast measurement. Further, the gas barrier laminate of the present invention includes a biaxially-oriented polypropylene base and an aluminum oxide thin film formed on one surface of the biaxially-oriented polypropylene base. The biaxially-oriented polypropylene base has a molecular chain whose orientation angle measured by phase-contrast measurement ranges from 50° to 90° or from −50° to −90° relative to an MD direction.