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.:
Date of Patent:
Jan. 16, 2018
Filed:
Jul. 26, 2016
GM Global Technology Operations Llc, Detroit, MI (US);
Timothy J. Fuller, Pittsford, NY (US);
Frank D. Coms, Fairport, NY (US);
Cristin L. Keary, Auburn Hills, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method for making a device with a fibrous sheet includes a step of combining a fiber-forming resin with a carrier resin to form a resinous mixture. The fiber forming resin has a fluorinated backbone with a pendent CFCF—X group where X is a SOH or SOF. The carrier resin is a soluble polyamide. The resinous mixture is extruded to form an extruded resinous mixture. The extruded resinous mixture has fiber strands of the fiber-forming resin within the carrier resin. The extruded resinous mixture is contacted with water to separate the fiber strands of the fiber-forming resin from the carrier resin. Fiber forming strands are optionally cross-linked with ammonia and then are hydrolyzed to form ionomers.