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:
Mar. 08, 2022
Filed:
May. 31, 2019
Applicant:
Entex Rust & Mitschke Gmbh, Bochum, DE;
Inventor:
Harald Rust, Bochum, DE;
Assignee:
Entex Rust & Mitschke GmbH, Bochum, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22C 5/00 (2006.01); B01F 7/30 (2006.01); C08J 3/20 (2006.01); B01F 15/02 (2006.01); B01F 15/06 (2006.01); B01F 7/00 (2006.01); B01F 15/00 (2006.01);
U.S. Cl.
CPC ...
B01F 7/30 (2013.01); B01F 7/008 (2013.01); B01F 15/0035 (2013.01); B01F 15/00155 (2013.01); B01F 15/0235 (2013.01); B01F 15/0283 (2013.01); B01F 15/0289 (2013.01); B01F 15/0292 (2013.01); B01F 15/06 (2013.01); B01F 15/063 (2013.01); C08J 3/203 (2013.01); B01F 2015/061 (2013.01); B01F 2015/062 (2013.01); B01F 2215/0049 (2013.01);
Abstract
A main extruder and a side arm extruder are used in the extrusion of plastics with small amounts of additives or other small substances to be admixed. A minor portion of the plastic material is premixed with small quantity additive substances in a side arm extruder. The premixed material is discharged from the side arm extruder into the main extruder and there mixed with a major portion of feed material.