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:
Jun. 11, 2021
Kuraray Co., Ltd., Okayama, JP;
Makoto Suzuki, Kurashiki, JP;
Mizuko Oshita, Kurashiki, JP;
KURARAY CO., LTD., Okayama, JP;
Abstract
Provided are a multilayer structure and a multilayer tube which have superior gas barrier properties and in which occurrence of cracks at a time of deforming by heating is inhibited. The multilayer structure includes at least a layer (X) constituted from a resin composition (x), the resin composition (x) containing: an ethylene-vinyl alcohol copolymer (A); and an acid-modified ethylene-α-olefin copolymer (B), wherein a number of total layers of the multilayer structure is 3 or more, a total thickness of the total layers is 500 μm or more, a thickness of the layer (X) is 30 μm or more, a mass ratio (B/A) of the acid-modified ethylene-α-olefin copolymer (B) to the ethylene-vinyl alcohol copolymer (A) is 3/97 or more and 15/85 or less, and an acid value of the acid-modified ethylene-α-olefin copolymer (B) is 8.5 mg KOH/g or more and 15 mg KOH/g or less.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile