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. 03, 2026
Filed:
Nov. 28, 2022
Toppan Holdings Inc., Tokyo, JP;
TOPPAN HOLDINGS INC., Tokyo, JP;
Abstract
A barrier film according to the first aspect of the present disclosure contains, in the following order: a base material layer containing polypropylene; a vapor deposition layer containing an inorganic oxide; and a gas barrier layer, in which the base material layer has a multilayer structure in which at least three layers, which are a first skin layer, a core layer, and a second skin layer, are provided in this order, and in which when a softening temperature of each of the layers of the base material layer is measured by local thermal analysis (LTA), at least one softening temperature of the first skin layer is 120° C. or higher, at least one softening temperature of the core layer is 190° C. or higher, and at least one softening temperature of the second skin layer is 160° C. or lower.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile