US 7,498,079 B1
Thermally stable polytetrafluoroethylene fiber and method of making same
Mike Donckers, Decatur, Ala. (US)
Assigned to Toray Fluorofibers (America), Inc., Decatur, Ala. (US)
Filed on Jun. 14, 2007, as Appl. No. 11/763,249.
Claims priority of provisional application 60/943759, filed on Jun. 13, 2007.
Int. Cl. D02G 3/00 (2006.01)
U.S. Cl. 428—364  [426/394; 426/421] 27 Claims
OG exemplary drawing
 
1. A polytetrafluoroethylene fiber exhibiting less than 9% shrinkage when subjected to a temperature of 300 degrees Celsius for 30 minutes wherein the polytetrafluoroethylene fiber is a dispersion spun fiber.