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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 11524490 B1

PDFFull Text
Date of Patent:
Dec. 13, 2022

Filed:

Aug. 08, 2019

Multilayered container and method for producing same

Applicant:

Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;

Inventors:

Jin Nakamura, Kanagawa, JP;

Takanori Miyabe, Kanagawa, JP;

Takafumi Oda, Kanagawa, JP;

Assignee:

Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;

Attorney:

Fitch, Even, Tabin & Flannery LLP

Primary Examiner:

Yan Lan

Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 27/36 (2006.01); B32B 27/34 (2006.01); B32B 27/16 (2006.01); B32B 1/02 (2006.01); B65B 55/08 (2006.01); B65D 1/02 (2006.01); B29C 71/04 (2006.01); B29C 49/22 (2006.01); B29K 67/00 (2006.01); B29K 77/00 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B29C 71/04 (2013.01); B32B 1/02 (2013.01); B32B 27/16 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B65B 55/08 (2013.01); B65D 1/0207 (2013.01); B29C 49/22 (2013.01); B29K 2067/003 (2013.01); B29K 2077/00 (2013.01); B29L 2031/7158 (2013.01); B32B 2250/03 (2013.01); B32B 2250/24 (2013.01); B32B 2250/40 (2013.01); B32B 2439/60 (2013.01);
Abstract

Provided is a multilayered container including a polyester layer containing a thermoplastic polyester resin (X) and a polyamide layer containing a polyamide resin (Y), wherein the polyester layer is an innermost layer, and the polyamide layer is an intermediate layer. The polyamide resin (Y) has a constituent unit derived from a diamine and a constituent unit derived from a dicarboxylic acid. At least 70 mol % of the constituent units derived from a diamine are a constituent unit derived from a xylylenediamine, and at least 70 mol % of the constituent units derived from a dicarboxylic acid are a constituent unit derived from an α,ω-linear aliphatic dicarboxylic acid having from 4 to 20 carbons. When an overall thickness is 100%, the polyamide layer is present from a position of 5 to 35% from an inner surface, and a thickness of the polyamide layer is from 1 to 15%.

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