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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 11298926 B1

PDFFull Text
Date of Patent:
Apr. 12, 2022

Filed:

Mar. 14, 2018

Multilayered containers

Applicant:

Toyo Seikan Group Holdings, Ltd., Tokyo, JP;

Inventors:

Yuuki Tashiro, Yokohama, JP;

Takayuki Ishihara, Yokohama, JP;

Azusa Otsuki, Yokohama, JP;

Assignee:

TOYO SEIKAN GROUP HOLDINGS, LTD., Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Walter Aughenbaugh

Int. Cl.
CPC ...
B32B 1/02 (2006.01); B32B 27/32 (2006.01); B32B 27/30 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B65D 65/40 (2006.01); C08L 23/12 (2006.01);
U.S. Cl.
CPC ...
B32B 27/306 (2013.01); B32B 1/02 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/32 (2013.01); B65D 65/40 (2013.01); C08L 23/12 (2013.01); B32B 2250/246 (2013.01); B32B 2439/00 (2013.01); C08L 2201/14 (2013.01); C08L 2205/025 (2013.01); C08L 2205/03 (2013.01); C08L 2207/10 (2013.01);
Abstract

A gas-barrier multilayered container having (i) a layer of a propylene type polymer which chiefly includes a homopolypropylene having an isotactic index of not less than 93%, and (ii) a layer of an ethylene-vinyl alcohol copolymer having not less than two crystal melting peak temperatures. Also disclosed is a lustrous and shock-resistant multilayered container having at least (i) an outermost layer of a propylene type polymer A which chiefly includes a homopolypropylene having a melt flow rate of 2.0 to 10.0 g/10 min., and (ii) an inner layer of a propylene type polymer B which chiefly includes a homopolypropylene having a melt flow rate of not more than 1.0 g/10 min.

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