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:
Sep. 06, 2011
Filed:
Nov. 26, 2008
Susanne Brix, Eckental, DE;
Friedrich Müller, Lauf, DE;
Christian Lankes, Feucht, DE;
Alfred Gemmel, Kalchreuth, DE;
Olivier Pinto, Lyons, FR;
Mikael Abeguile, Chaponost, FR;
Jérôme Alric, L'isle d'Abeau, FR;
Thierry Auvray, Lancaster, PA (US);
Paul Kroushl, Lancaster, PA (US);
Susanne Brix, Eckental, DE;
Friedrich Müller, Lauf, DE;
Christian Lankes, Feucht, DE;
Alfred Gemmel, Kalchreuth, DE;
Olivier Pinto, Lyons, FR;
Mikael Abeguile, Chaponost, FR;
Jérôme Alric, L'isle d'Abeau, FR;
Thierry Auvray, Lancaster, PA (US);
Paul Kroushl, Lancaster, PA (US);
Nexans, Paris, FR;
Abstract
A process for the production of a moulding composed of foamed polytetrafluoroethylene by means of an extruder, includes introducing a foaming agent, which brings about foaming, into the polytetrafluoro-ethylene, where the extruder used includes a commercially available extruder, to which a thermoplastically processable, fusible polytetrafluoroethylene is fed, the polytetrafluoroethylene is fed to the extruder together with a foaming agent which has chemical action and which has a decomposition temperature of at least 320° C., and after its discharge from the extruder, the moulding is drawn off in the direction of production without any further measures relating to the foaming procedure.