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:
May. 25, 2021
Filed:
Sep. 06, 2016
Reiko Co., Ltd., Kyoto, JP;
REIKO CO., LTD., Kyoto, JP;
Abstract
A transparent high-barrier film having flexibility and a high-barrier property is usable as a packaging material for pharmaceutical products, or as a flexible sealing material. The high-barrier film includes a plastic film and at least a barrier layer stacked thereon. The barrier layer is a layer in which two or more units are stacked, each unit having a structure in which a barrier layer A, a barrier layer B, and a barrier layer A are stacked in that order. The barrier layer A is a layer composed of SiOC in which the content ratio of carbon is in a range of more than 0% and less than 15%. The barrier layer B is a layer composed of SiOC in which the content ratio of carbon is in a range of 1.1 to 4.0 times the content ratio of carbon in the barrier layer A.