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. 19, 2019
Filed:
Jul. 09, 2015
Applicant:
Covestro Deutschland Ag, Leverkusen, DE;
Inventors:
Michael Bierdel, Leverkusen, DE;
Thomas König, Leverkusen, DE;
Assignee:
Covestro Deutschland AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29B 7/00 (2006.01); B29C 47/00 (2006.01); B29B 7/48 (2006.01); B29C 47/60 (2006.01); B29C 47/64 (2006.01); B01F 7/00 (2006.01); B29C 47/08 (2006.01); B29C 47/40 (2006.01); B29K 69/00 (2006.01); B29C 47/76 (2006.01);
U.S. Cl.
CPC ...
B29B 7/489 (2013.01); B01F 7/00416 (2013.01); B01F 7/00891 (2013.01); B29B 7/486 (2013.01); B29C 47/6068 (2013.01); B29C 47/6075 (2013.01); B29C 47/64 (2013.01); B01F 2215/0049 (2013.01); B01F 2215/0431 (2013.01); B29C 47/0861 (2013.01); B29C 47/40 (2013.01); B29C 47/402 (2013.01); B29C 47/6037 (2013.01); B29C 47/6043 (2013.01); B29C 47/76 (2013.01); B29C 2947/926 (2013.01); B29C 2947/92104 (2013.01); B29C 2947/92228 (2013.01); B29C 2947/92447 (2013.01); B29C 2947/92723 (2013.01); B29K 2069/00 (2013.01); Y02P 70/263 (2015.11);
Abstract
The invention relates to mixing elements that have a larger number of basic geometric periods per section and an improved dispersing effect for multi-shaft screw extruders comprising screw shafts that co-rotate in pairs. The invention further relates to the use of the mixing elements in multi-shaft screw extruders, a corresponding screw extruder comprising the mixing elements, and a method for extruding kneadable materials.