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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 11390058 B1

PDFFull Text
Date of Patent:
Jul. 19, 2022

Filed:

Oct. 13, 2017

Easily tearable aluminum-vapor-deposited biaxially oriented film

Applicant:

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

Inventors:

Tomo Chiba, Kanagawa, JP;

Takafumi Oda, Kanagawa, JP;

Assignee:

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

Attorney:

Fitch, Even, Tabin & Flannery LLP

Primary Examiner:

Eli D Strah

Assistant Examiner:

Thomas J Kessler

Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 37/15 (2006.01); B32B 38/00 (2006.01); B32B 27/34 (2006.01); B32B 27/32 (2006.01); B65D 65/40 (2006.01); B65D 81/30 (2006.01); B32B 7/12 (2006.01); B32B 15/088 (2006.01); B65D 81/24 (2006.01); B32B 15/20 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B32B 7/12 (2013.01); B32B 15/088 (2013.01); B32B 15/20 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 37/153 (2013.01); B32B 38/0012 (2013.01); B32B 38/0036 (2013.01); B65D 65/40 (2013.01); B65D 81/24 (2013.01); B65D 81/30 (2013.01); B32B 2038/0028 (2013.01); B32B 2255/10 (2013.01); B32B 2255/205 (2013.01); B32B 2307/518 (2013.01); B32B 2307/582 (2013.01); B32B 2439/00 (2013.01); Y10T 428/13 (2015.01); Y10T 428/1352 (2015.01);
Abstract

The present invention provides an easily tearable aluminum-vapor-deposited biaxially oriented film in which at least an aluminum vapor deposition layer (A), a barrier layer (B), an adhesive layer (C), and a polypropylene layer (D) are layered in this order, wherein the barrier layer (B) includes a mixture of a polyamide (a) and an amorphous polyamide (b), the polyamide (a) includes diamine units including at least 70 mol % of constituent units derived from xylylene diamine and dicarboxylic acid units including at least 70 mol % of constituent units derived from a Cα,ω-straight-chain aliphatic dicarboxylic acid, the content of the polyamide (a) in the barrier layer (B) is 30-70% by mass, and the content of the amorphous polyamide (b) in the barrier layer (B) is 30-70% by mass.

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