Fluoropolymer composite tube and method of preparation

Details Fluoropolymer composite tube and method of preparation Fluoropolymer composite tube and method of preparation

B - Operations, Transporting

29

C

B29C 59/10 (2006.01) B29C 47/00 (2006.01) B29C 47/06 (2006.01) B29C 47/28 (2006.01) B29C 59/08 (2006.01) B29C 59/14 (2006.01) B29C 71/00 (2006.01) B29D 23/24 (2006.01) B32B 1/08 (2006.01) B32B 7/04 (2006.01) C08J 3/24 (2006.01) F16L 9/12 (2006.01) F16L 9/133 (2006.01) F16L 11/04 (2006.01) F16L 11/12 (2006.01) F16L 11/127 (2006.01)

Patent

CA 2086032

Described herein is a method of preparing a fluoropolymer composite tube comprising the steps of activating a formed fluoropolymer substrate by subject- ing the substrate to a charged gaseous atmosphere formed by electrically ionizing a gas which contacts the substrate and thereafter applying a layer of a thermo- plastic polymer to the activated fluoropolymer sub- strate. The ionizing step can be described as a corona discharge or an electrically formed plasma. In particu- lar, described is a fuel pipe comprised of an inner fluorocarbon layer having electrostatic discharge resistance and hydrocarbon evaporative emission resis- tance and on top of and integral with, the fluorocarbon layer an cuter layer of a thermoplastic polymer. Fluoropolymer layers have excellent chemical resistance.

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