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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.:

US 12460074 B1

PDFFull Text
Date of Patent:
Nov. 04, 2025

Filed:

Jun. 29, 2021

Gas barrier resin composition, method for producing gas barrier resin composition, and molded product

Applicant:

Kuraray Co., Ltd., Okayama, JP;

Inventors:

Masakazu Nakaya, Kurashiki, JP;

Mizuko Oshita, Kurashiki, JP;

Assignee:

KURARAY CO., LTD., Okayama, JP;

Attorney:

Morgan, Lewis & Bockius LLP

Primary Examiner:

James C Yager

Int. Cl.
CPC ...
C08L 23/26 (2025.01); B65D 65/40 (2006.01); C08F 210/02 (2006.01); C08F 218/08 (2006.01); C08J 3/00 (2006.01); C08J 3/20 (2006.01); C08J 5/18 (2006.01); C08J 7/048 (2020.01); C08J 7/06 (2006.01); C08L 31/04 (2006.01); A01G 13/32 (2025.01); F16L 9/12 (2006.01);
U.S. Cl.
CPC ...
C08L 23/26 (2013.01); B65D 65/40 (2013.01); C08F 210/02 (2013.01); C08F 218/08 (2013.01); C08J 3/005 (2013.01); C08J 3/203 (2013.01); C08J 5/18 (2013.01); C08J 7/048 (2020.01); C08J 7/06 (2013.01); C08L 31/04 (2013.01); A01G 13/32 (2025.01); C08F 2810/00 (2013.01); C08J 2323/26 (2013.01); C08J 2331/04 (2013.01); C08L 2201/08 (2013.01); C08L 2201/14 (2013.01); C08L 2203/10 (2013.01); C08L 2203/162 (2013.01); C08L 2203/18 (2013.01); C08L 2205/025 (2013.01); C08L 2205/035 (2013.01); C08L 2207/04 (2013.01); F16L 9/12 (2013.01);
Abstract

Provided are: a gas barrier resin composition having sufficient long-run workability and superior gas barrier properties which compare favorably to those of fossil fuel-derived resins, while containing a biomass-derived raw material; a multilayer structure in which the gas barrier resin is used; and a method for producing such a gas barrier resin composition. The gas barrier resin composition contains at least one type of saponified ethylene-vinyl ester copolymer, wherein of ethylene and a vinyl ester, which are raw materials of the at least one type of saponified ethylene-vinyl ester copolymer, a part is derived from biomass, and a remainder is derived from a fossil fuel.

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