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. 15, 2016
Filed:
Apr. 03, 2012
Markus Pridoehl, Grosskrotzenburg, DE;
Guenter Schmitt, Darmstadt, DE;
Dirk Poppe, Frankfurt am Main, DE;
Stephan Kohlstruk, Duelmen, DE;
Benjamin Hammann, Frankfurt, DE;
Sonja Cremer, Sulzbach, DE;
Kris Beks, Rosmeer, BE;
Ludo Dewaelheyns, Zutendaal, BE;
Markus Pridoehl, Grosskrotzenburg, DE;
Guenter Schmitt, Darmstadt, DE;
Dirk Poppe, Frankfurt am Main, DE;
Stephan Kohlstruk, Duelmen, DE;
Benjamin Hammann, Frankfurt, DE;
Sonja Cremer, Sulzbach, DE;
Kris Beks, Rosmeer, BE;
Ludo Dewaelheyns, Zutendaal, BE;
Evonik Röhm GmbH, Darmstadt, DE;
Abstract
The invention relates to a modified fused deposition modeling process for production of multicolored three-dimensional objects. More particularly, the invention relates to a 3D printing process with which 3D objects with particularly good color appearance compared to the prior art can be produced. The process according to the invention is based on coloring of the polymer strand used for production of the actual object in the nozzle, and on using a mixing apparatus which comprises a plurality of injection needles, a static mixer or a dynamic mixer.