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. 17, 2020

Filed:

Nov. 23, 2016
Applicant:

Dow Global Technologies Llc, Midland, MI (US);

Inventors:

Yushan Hu, Pearland, TX (US);

Rajen M. Patel, Lake Jackson, TX (US);

Gary R. Marchand, Gonzales, LA (US);

Sharon L. Baker, Lake Jackson, TX (US);

Christopher I. Gandy, Chicago, IL (US);

Lori L. Kardos, Sugar Land, TX (US);

Assignee:

DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/32 (2006.01); B29C 49/04 (2006.01); B29C 47/06 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B29C 48/21 (2019.01); B29C 48/22 (2019.01); B29C 49/02 (2006.01); B29K 23/00 (2006.01); B29L 9/00 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B32B 27/32 (2013.01); B29C 48/21 (2019.02); B29C 48/22 (2019.02); B29C 49/02 (2013.01); B29C 49/04 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B29K 2023/06 (2013.01); B29K 2023/12 (2013.01); B29K 2995/0077 (2013.01); B29L 2009/00 (2013.01); B29L 2031/7128 (2013.01); B32B 2250/05 (2013.01); B32B 2250/242 (2013.01); B32B 2250/40 (2013.01); B32B 2270/00 (2013.01); B32B 2274/00 (2013.01); B32B 2307/54 (2013.01); B32B 2307/546 (2013.01); B32B 2307/558 (2013.01); B32B 2307/704 (2013.01); B32B 2323/04 (2013.01); B32B 2323/10 (2013.01); B32B 2439/00 (2013.01); B32B 2439/46 (2013.01); B32B 2439/70 (2013.01); Y10T 428/31913 (2015.04);
Abstract

Disclosed herein is a multilayer film comprising two outer layers; where each outer layer comprises polyethylene; two tie layers; where each tie layer comprises a crystalline block composite; where each tie layer has a first face and a second face that are opposed to each other, and where the first face of each tie layer contacts at least one outer layer; and a core layer; where the core layer comprises a polypropylene; where the second face of each tie layer contacts the core layer. Disclosed herein is a method that includes coextruding the aforementioned multilayered film.


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