logo

For the Inventor, By the Inventor

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 11772371 B1

PDFFull Text
Date of Patent:
Oct. 03, 2023

Filed:

Jul. 01, 2022

High-performance multilayer film for packaging

Applicant:

Jiapu Innovative Film (Kunshan) Co., Ltd., Jiangsu, CN;

Inventors:

Jialiang Xia, Suzhou, CN;

Xuewen Gao, Suzhou, CN;

Yu Xia, Suzhou, CN;

Minyan Tang, Suzhou, CN;

Assignee:

JIAPU INNOVATIVE FILM (KUNSHAN) CO., LTD., Suzhou, CN;

Attorney:

Oliff PLC

Primary Examiner:

Alicia J Weydemeyer

Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 7/12 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B32B 27/36 (2006.01); B65D 65/40 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B32B 7/12 (2013.01); B32B 27/306 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B65D 65/40 (2013.01); B32B 2250/05 (2013.01); B32B 2250/24 (2013.01); B32B 2307/518 (2013.01); B32B 2307/72 (2013.01); B32B 2439/70 (2013.01); B32B 2553/00 (2013.01);
Abstract

A high-performance multilayer film for packaging, the structure being: BL/TIE/PO1/POX/PO3, obtained once by multilayer coextrusion and biaxial stretching, wherein: the total thickness of the multilayer film is 8 to 100 micrometers; the absolute value of the difference of the solubility parameters between the PO1 and PO3 layer materials is ≥0.1 and ≤0.5, and the absolute value of the difference of the cohesive energy density is ≥3, and ≤5; the solubility parameter and cohesive energy density of the POX bridge material are based on one of the PO1 and PO3 layer materials, and it's transitioned to the other in a gradient way; the absolute value of the difference of the solubility parameters between adjacent layers from the PO1 layer to the POX bridge and the PO3 layer is ≤0.1 (J·cm), and the absolute value of the difference of the cohesive energy density is ≤3 J/cm).

Find Patent Forward Citations

Loading…