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:
Feb. 25, 2014
Filed:
Sep. 21, 2010
Ping Xu, Hockessin, DE (US);
Jack J. Hegenbarth, Wilmington, DE (US);
Rachel Radspinner, Newark, DE (US);
Paul D. Drumheller, Flagstaff, AZ (US);
William B. Johnson, Newark, DE (US);
Wen K. Liu, Newark, DE (US);
Xin Kang Chen, Shanghai, CN;
Ping Xu, Hockessin, DE (US);
Jack J. Hegenbarth, Wilmington, DE (US);
Rachel Radspinner, Newark, DE (US);
Paul D. Drumheller, Flagstaff, AZ (US);
William B. Johnson, Newark, DE (US);
Wen K. Liu, Newark, DE (US);
Xin Kang Chen, Shanghai, CN;
W. L. Gore & Associates, Inc., Newark, DE (US);
Abstract
A functional TFE copolymer fine powder is described, wherein the TFE copolymer is a polymer of TFE and at least one functional comonomer, and wherein the TFE copolymer has functional groups that are pendant to the polymer chain. The functional TFE copolymer fine powder resin is paste extrudable and expandable. Methods for making the functional TFE copolymer are also described. The expanded functional TFE copolymer material may be post-reacted after expansion.