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:
Jun. 23, 2026
Filed:
Oct. 03, 2023
Applicant:
Polytex Sportbelage Produktions-gmbh, Grefrath, DE;
Inventors:
Stephan Sick, Baden-Baden, DE;
Sven Hamann, Muehlheim, DE;
Dario Grochla, Bochum, DE;
Dirk Sander, Kerken, DE;
Assignee:
Polytex Sportbelage Produktions-GmbH, Grefrath, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 48/03 (2019.01); B29C 48/05 (2019.01); B29C 48/345 (2019.01); D01D 4/02 (2006.01); D01D 5/08 (2006.01); D01D 5/088 (2006.01); D01D 5/253 (2006.01); D01D 5/34 (2006.01); D01F 6/04 (2006.01); D01F 8/06 (2006.01); B29K 23/00 (2006.01);
U.S. Cl.
CPC ...
D01D 4/02 (2013.01); D01D 5/0885 (2013.01); D01D 5/253 (2013.01); D01D 5/34 (2013.01); D01F 6/04 (2013.01); D01F 8/06 (2013.01); B29K 2023/0625 (2013.01); D10B 2321/021 (2013.01); D10B 2505/202 (2013.01);
Abstract
An extrusion apparatus suitable for manufacturing artificial turf polymer fiber, in particular from LLDPE that is free of fiber splitting, wherein the extrusion apparatus is characterized in that a ratio of an equivalent diameter of the nozzle outlet over an axial length of the inner channel of the nozzle is from 0.90 to 1.10, or from 0.95 to 1.05.