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.

Date of Patent:
Mar. 18, 2025

Filed:

Aug. 05, 2020
Applicant:

Flex Films (Usa) Inc., Elizabethtown, KY (US);

Inventors:

Steven Sargeant, Elizabethtown, KY (US);

David Ortiz-Grob, Elizabethtown, KY (US);

Dakota Goodman, Eastview, KY (US);

Assignee:

FLEX FILMS (USA) INC., Elizabethtown, KY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 27/20 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B32B 27/205 (2013.01); B32B 27/325 (2013.01); B32B 27/36 (2013.01); B32B 2250/05 (2013.01); B32B 2250/24 (2013.01); B32B 2307/518 (2013.01);
Abstract

The biaxially oriented multilayered films include a stack (A-B)of n layer units A-B, where n is greater than or equal to 32 each layer unit A-B having individual layers comprising a first layer A and a second layer B overlying the first layer A. The biaxially oriented multilayer films include intralayer voids within a portion of the individual layers in the stack. The intralayer voids have width-to-height aspect ratios from 20:1 to 500:1. The first layers of the layer units have a first composition, and the second layers of the layer units have a second composition. The first composition includes a first thermoplastic and a first polymer immiscible with the first thermoplastic. The second composition includes a second thermoplastic that may be the same as or different from that of the first thermoplastic.


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