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. 12, 2002
Filed:
Apr. 01, 1999
Hendrikus Wilhelmus Jacobus Hofs, Bemmel, NL;
Heinrich Johannes Gustav Kiefer, Wuppertal, DE;
Henricus Hubertus Wilhelmus Feijen, Velp, NL;
Lambert van Duren, Zwolle, NL;
Christiaan Jurriaan Maria van den Heuvel, Ellecom, NL;
Michael Henricus Jacobus van den Tweel, Woudenberg, NL;
Akzo Nobel NV, Arnhem, NL;
Abstract
A process for manufacturing continuous polyester filament yarn for technical applications from a polymer over 90% of the chains of which are composed of ethylene terephthalate units, via a one-step spinning process, with the undrawn filaments having a crystallinity smaller than 16% and the yarn being wound at a rate larger than 6000 m/min. The yarn obtained in this fashion is particularly suitable for use as reinforcing material in rubber articles, notably as reinforcing material in pneumatic tires for cars. The polyester filament yarn can be used to make cords of uncommonly high dimensional stability and a unique combination of breaking tenacity, shrinkage, and breaking toughness.