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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 11279117 B1

PDFFull Text
Date of Patent:
Mar. 22, 2022

Filed:

Jun. 29, 2017

Fuel container

Applicant:

Kuraray Co., Ltd., Kurashiki, JP;

Inventors:

Takeyuki Igarashi, Okayama, JP;

Shogo Nakazawa, Kurashiki, JP;

Assignee:

KURARAY CO., LTD., Okayama, JP;

Attorney:

Morgan, Lewis & Bockius LLP

Primary Examiner:

Lee E Sanderson

Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 27/18 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 7/12 (2006.01); B32B 27/28 (2006.01); B65D 1/00 (2006.01); B60K 15/03 (2006.01); B32B 27/00 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B32B 7/12 (2013.01); B32B 27/00 (2013.01); B32B 27/18 (2013.01); B32B 27/28 (2013.01); B32B 27/306 (2013.01); B32B 27/32 (2013.01); B60K 15/03 (2013.01); B65D 1/00 (2013.01); B32B 2250/04 (2013.01); B32B 2250/246 (2013.01); B32B 2264/105 (2013.01); B32B 2307/558 (2013.01); B32B 2307/7265 (2013.01); B32B 2439/40 (2013.01); B60K 15/03177 (2013.01); B60K 2015/03493 (2013.01); Y10T 428/1352 (2015.01); Y10T 428/1379 (2015.01);
Abstract

Provided is a fuel container composed of a multilayer structure containing: an ethylene-vinyl alcohol copolymer (A) layer; an adhesive resin (B) layer; a high-density polyethylene (C) layer; and a resin composition (D) layer, wherein the ethylene-vinyl alcohol copolymer (A) contains 15 to 44 mol % of ethylene, the adhesive resin (B) is a maleic anhydride-modified polyolefin having an acid value of 0.1 to 10 mgKOH/g and containing 1 to 8.5 μmol/g of magnesium element, calcium element, zinc element, or a combination thereof, the resin composition (D) contains the ethylene-vinyl alcohol copolymer (A), the adhesive resin (B), and the high-density polyethylene (C), the thickness of the (A) layer, the (B) layer, and the (C) layer satisfies specific conditions, and the ethylene-vinyl alcohol copolymer (A), the adhesive resin (B), and the high-density polyethylene (C) satisfies specific conditions. The fuel container is excellent in fuel barrier properties and impact resistance and enables stable production.

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