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. 11, 2003
Filed:
Aug. 14, 2000
Kenneth J. Kuenzel, Grass Lake, MI (US);
Edward K. Krause, Ann Arbor, MI (US);
Pilot Industries, Inc., Dexter, MI (US);
Abstract
Described herein is a method of preparing a fluoropolymer composite comprising the steps of activating the fluoropolymer substrate and thereafter applying a layer of a different polymer to the activated fluoropolymer substrate. The activation step can be described as a mixed gas plasma discharge or an electrically formed plasma. Also described herein are other methods of surface activation including exposure to excimer laser, gamma rays, x-ray flux, electron beam, sodium naphthalate bath, coupling or curing agents, and others. In particular, described is a fuel pipe comprised of an inner fluorocarbon layer having electrostatic discharge resistance and hydrocarbon evaporative emission resistance chemically bonded to an outer layer of a cross-linked polyethylene polymer. There is no need for additional adhesives. Fluoropolymer layers have excellent chemical resistance.