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:
Jul. 30, 2019

Filed:

Feb. 09, 2015
Applicant:

W. L. Gore & Associates, Inc., Newark, DE (US);

Inventors:

Donald T. Freese, Waikoloa Village, HI (US);

F. Colin Busby, Newark, DE (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01B 7/02 (2006.01); H01B 13/06 (2006.01); H01B 13/22 (2006.01); H01B 13/10 (2006.01); B29C 65/00 (2006.01); B32B 3/00 (2006.01); B32B 5/00 (2006.01); B32B 5/18 (2006.01); B32B 37/00 (2006.01); B32B 33/00 (2006.01); B29C 47/00 (2006.01); B32B 38/04 (2006.01); B32B 7/14 (2006.01); C09J 5/04 (2006.01); B65C 9/25 (2006.01); C09J 5/00 (2006.01); C09J 4/00 (2006.01); C09J 101/00 (2006.01); C09J 201/00 (2006.01); B05D 5/12 (2006.01); H01M 8/10 (2016.01); H01M 8/00 (2016.01); H01M 8/1004 (2016.01); H01M 8/1018 (2016.01); H01M 8/1086 (2016.01); H01M 8/1081 (2016.01); B32B 37/12 (2006.01); H01M 8/1039 (2016.01); H01M 8/1053 (2016.01); H01M 8/106 (2016.01); C08J 5/22 (2006.01); H01M 4/86 (2006.01); H01M 4/88 (2006.01); B29C 65/48 (2006.01); B32B 37/24 (2006.01); B32B 27/08 (2006.01); B32B 27/32 (2006.01);
U.S. Cl.
CPC ...
H01M 8/1004 (2013.01); B32B 37/1292 (2013.01); C08J 5/2237 (2013.01); H01M 4/8657 (2013.01); H01M 4/8807 (2013.01); H01M 4/8828 (2013.01); H01M 8/106 (2013.01); H01M 8/1018 (2013.01); H01M 8/1039 (2013.01); H01M 8/1053 (2013.01); H01M 8/1081 (2013.01); H01M 8/1086 (2013.01); B29C 65/483 (2013.01); B29C 66/43 (2013.01); B32B 27/08 (2013.01); B32B 27/322 (2013.01); B32B 2037/243 (2013.01); B32B 2375/00 (2013.01); B32B 2457/10 (2013.01); B32B 2457/18 (2013.01); C08J 2327/18 (2013.01); H01M 2008/1095 (2013.01); H01M 2300/0085 (2013.01); Y02P 70/56 (2015.11);
Abstract

A method of making a component of a membrane electrode assembly comprising the steps of forming an electrode on an air-permeable backer comprising ePTFE, depositing a mixture comprising ionomer and a water-insoluble alcohol onto said electrode, drying said mixture to form a protective ionomer layer, and depositing an ePTFE-reinforced ionomer layer onto said protective ionomer layer.


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