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:
Nov. 30, 2004
Filed:
Mar. 06, 2002
Klaus Schäfer, Remscheid, DE;
Saurer GmbH & Co. KG, Mönchengladbach, DE;
Abstract
A method of melt spinning a group of multifilament yarns ( ) from a polymer melt, wherein each group of yarns ( ) is formed from a plurality of filaments ( ) that are extruded through a nozzle bore ( ) and withdrawn by a withdrawal means by the action of a withdrawal tension. In accordance with the invention, each group of yarns ( ) is cooled in a precooling zone ( ) and in an aftercooling zone ( ) downstream thereof. The cooling in the precooling zone ( ) and in the aftercooling zone ( ) is adjusted such that the group of yarns ( ) is cooled within the aftercooling zone ( ) by the action of a coolant flow directed into the path of the yarn, so that the filaments ( ) of the group of yarns ( ) solidify in a solidification range within the aftercooling zone ( ).