Patents by Inventor Markus Pridoehl

Markus Pridoehl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10688718
    Abstract: The present invention relates to the technical field of 3D printing, especially in the form of the binder jetting method, in which particulate material in a powder bed is bonded by means of a printed adhesive to form a three-dimensional object. The particulate materials may be inorganic materials, for example sand or a metal powder, or particulate polymeric materials, for example polymethacrylates or polyamides. For this purpose, polymethacrylates may take the form, for example, of suspension polymers, called bead polymers. The present invention relates to the use of porous particles in the binder jetting process, in particular of porous suspension polymers. These powders for 3-D printing differ from the prior art in that the porosity results in a faster and better absorption of the printed binder by the powder particles. A great advantage of this procedure is additionally that a product with less warpage is formed and that the end product has a better surface appearance.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: June 23, 2020
    Assignee: Evonik Operations GmbH
    Inventors: Stephan Wieber, Dirk Poppe, Stefan Bernhardt, Markus Pridöhl, Sven Balk, Christian Meier, Senada Schaack, Thomas Hasskerl
  • Publication number: 20190337282
    Abstract: The present invention relates to a novel process for the production of coated filaments for subsequent application as print in extrusion-based 3D printers, e.g. FDM printers (fused deposition modelling printers). The filaments are coated in a separate process outside of the printer, and can also be used in a conventional extrusion printer. The present invention further relates to the coating device for application of the coating to the filament and to a roll containing the coated filaments.
    Type: Application
    Filed: July 15, 2019
    Publication date: November 7, 2019
    Applicant: Evonik Röhm GmbH
    Inventors: Markus PRIDOEHL, Ulrike BEHRENS, Stefan BERNHARDT, Ann-Kristin KLAAR, Samuel von KARSA-WILBERFORCE
  • Patent number: 9433969
    Abstract: A 3D extrusion print process for producing multicolored three-dimensional objects is provided. The process produces mechanically stable, multicolored 3D objects with good color definition. The process according to the invention is based on coating, upstream of the printing head, of the polymer strand used for producing the actual object, and on fixing of the coating upstream of entry of the polymer strand into the printing head. Downstream of the extrusion process in the printing head, the coating remains predominantly at the surface of the extruded strand.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: September 6, 2016
    Assignee: EVONIK RÖHM GmbH
    Inventors: Markus Pridoehl, Guenter Schmitt, Dirk Poppe, Stephan Kohlstruk, Benjamin Hammann, Sonja Cremer, Kris Beks, Ludo Dewaelheyns
  • Patent number: 9283714
    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.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: March 15, 2016
    Assignee: Evonik Röhm GmbH
    Inventors: Markus Pridoehl, Guenter Schmitt, Dirk Poppe, Stephan Kohlstruk, Benjamin Hammann, Sonja Cremer, Kris Beks, Ludo Dewaelheyns
  • Publication number: 20160059488
    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.
    Type: Application
    Filed: September 8, 2015
    Publication date: March 3, 2016
    Applicant: EVONIK ROEHM GmbH
    Inventors: Markus PRIDOEHL, Guenter SCHMITT, Dirk POPPE, Stephan KOHLSTRUK, Benjamin HAMMANN, Sonja CREMER, Kris BEKS, Ludo DEWAELHEYNS
  • Patent number: 9193110
    Abstract: The present invention relates to a novel process for the production of coated filaments for subsequent application as print in extrusion-based 3D printers, e.g. FDM printers (fused deposition modelling printers). The filaments are coated in a separate process outside of the printer, and can also be used in a conventional extrusion printer. The present invention further relates to the coating device for application of the coating to the filament and to a roll containing the coated filaments.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: November 24, 2015
    Assignee: Evonik Industries AG
    Inventors: Markus Pridoehl, Ulrike Behrens, Stefan Bernhardt, Ann-Kristin Klaar, Samuel von Karsa-Wilberforce
  • Publication number: 20150321424
    Abstract: A coating device for the production of coated filaments for an extrusion-based 3D printing process is provided. The device contains a coating unit and a fixing unit downstream of the coating unit.
    Type: Application
    Filed: July 20, 2015
    Publication date: November 12, 2015
    Applicant: Evonik Industries AG
    Inventors: Markus PRIDOEHL, Ulrike BEHRENS, Stefan BERNHARDT, Ann-Kristin KLAAR, Samuel von KARSA-WILBERFORCE
  • Patent number: 8822590
    Abstract: The invention relates to a novel support material for the fused deposition modelling process for producing three-dimensional objects. The invention relates more particularly to a 3D printing process involving support materials which are easier to remove than in the prior art. The support materials according to the invention are styrene-maleic anhydride copolymers for example.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: September 2, 2014
    Assignee: Evonik Röhm GmbH
    Inventors: Florian Hermes, Stefan Bernhardt, Dirk Poppe, Guenter Schmitt, Markus Pridoehl, Gerd Loehden
  • Publication number: 20140134335
    Abstract: The present invention relates to a novel process for the production of coated filaments for subsequent application as print in extrusion-based 3D printers, e.g. FDM printers (fused deposition modelling printers). The filaments are coated in a separate process outside of the printer, and can also be used in a conventional extrusion printer. The present invention further relates to the coating device for application of the coating to the filament and to a roll containing the coated filaments.
    Type: Application
    Filed: November 6, 2013
    Publication date: May 15, 2014
    Applicant: Evonik Industries AG
    Inventors: Markus PRIDOEHL, Ulrike Behrens, Stefan Bernhardt, Ann-Kristin Klaar, Samuel von Karsa-Wilberforce
  • Publication number: 20140134334
    Abstract: A 3D extrusion print process for producing multicolored three-dimensional objects is provided. The process produces mechanically stable, multicolored 3D objects with good color definition. The process according to the invention is based on coating, upstream of the printing head, of the polymer strand used for producing the actual object, and on fixing of the coating upstream of entry of the polymer strand into the printing head. Downstream of the extrusion process in the printing head, the coating remains predominantly at the surface of the extruded strand.
    Type: Application
    Filed: October 31, 2013
    Publication date: May 15, 2014
    Applicant: Evonik Industries AG
    Inventors: Markus PRIDOEHL, Guenter Schmitt, Dirk Poppe, Stephan Kohlstruk, Benjamin Hammann, Sonja Cremer, Kris Beks, Ludo Dewaelheyns
  • Publication number: 20140088751
    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 surface coloring or additive coating of the polymer strand used for production of the actual object or of the melt which results therefrom in the nozzle.
    Type: Application
    Filed: April 3, 2012
    Publication date: March 27, 2014
    Applicant: Evonik Roehm GmbH
    Inventors: Markus Pridoehl, Guenter Schmitt, Dirk Poppe, Stephan Kohlstruk, Benjamin Hammann, Sonja Cremer, Kris Beks, Ludo Dewaelheyns
  • Publication number: 20140079841
    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.
    Type: Application
    Filed: April 3, 2012
    Publication date: March 20, 2014
    Applicant: Evonik Roehm GmbH
    Inventors: Markus Pridoehl, Guenter Schmitt, Dirk Poppe, Stephan Kohlstruk, Benjamin Hammann, Sonja Cremer, Kris Beks, Ludo Dewaelheyns
  • Publication number: 20130317164
    Abstract: The invention relates to a novel support material for the fused deposition modelling process for producing three-dimensional objects. The invention relates more particularly to a 3D printing process involving support materials which are easier to remove than in the prior art. The support materials according to the invention are styrene-maleic anhydride copolymers for example.
    Type: Application
    Filed: March 13, 2012
    Publication date: November 28, 2013
    Applicant: Evonik Roehm GmbH
    Inventors: Florian Hermes, Stefan Bernhardt, Dirk Poppe, Guenter Schmitt, Markus Pridoehl, Gerd Loehden
  • Patent number: 8524342
    Abstract: The invention relates to plastics composite moldings obtainable via welding in an alternating electromagnetic field, in which the weld is obtained with the aid of a plastics material which comprises nano-scale, magnetic oxidic particles, which are composed of aggregated primary particles, and where the primary particles are composed of magnetic metal oxide domains whose diameter is from 2 to 100 nm in a non-magnetic metal oxide matrix or non-magnetic metalloid oxide matrix.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: September 3, 2013
    Assignee: Evonik Degussa GmbH
    Inventors: Harald Häger, Markus Pridöhl, Guido Zimmermann, Karl Kuhmann, Rainer Göring
  • Patent number: 8343410
    Abstract: A production method for producing molded articles from fiber composites, superparamagnetic particles are selected which become coupled to an external alternating magnetic field. These superparamagnetic particles are added to a resin portion of a strip-shaped starting material further comprising reinforcing fibers. The strip-shaped starting material is then continuously advanced, and, while being advanced, heated by coupling-in an external alternating magnetic field to which the superparamagnetic particles in the resin portion become coupled. Next, the heated starting material is continuously molded into a molded article; and the resin portion in the molded particle is cured.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: January 1, 2013
    Assignee: Evonik Degussa GmbH
    Inventors: Lars Herbeck, Thorsten Mahrholz, Tobias Stroehlein, Juergen Mosch, Michael Frauenhofer, Stefan Boehm, Klaus Dilger, Harald Haeger, Christian Baron, Markus Pridoehl
  • Publication number: 20120111499
    Abstract: The invention relates to hybrid materials comprising polymers which envelop nanoscale, superparamagnetic, ferromagnetic, ferrimagnetic or paramagnetic powders, to a process for producing these materials and to their use.
    Type: Application
    Filed: January 17, 2012
    Publication date: May 10, 2012
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Sebastian ROOS, Gerd Löhden, Jan Hendrik Schattka, Manfred Braum, Markus Pridöhl, Guido Zimmermann, Andreas Hüther
  • Patent number: 8043593
    Abstract: An aggregated crystalline silicon powder with a BET surface area of 20 to 150 m2/g is provided. The aggregated silicon powder may be doped with phosphorus, arsenic, antimony, bismuth, boron, aluminium, gallium, indium, thallium, europium, erbium, cerium, praseodymium, neodymium, samarium, gadolinium, terbium, dysprosium, holmium, thulium, lutetium, lithium, ytterbium, germanium, iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium, platinum, copper, silver, gold, or zinc.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: October 25, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Markus Pridoehl, Paul Roth, Hartmut Wiggers, Frank-Martin Petrat, Michael Kraemer
  • Patent number: 8025756
    Abstract: The invention relates to a method of bonding different materials of construction using hybrid materials comprising nanoscale, superparamagnetic, ferromagnetic, ferrimagnetic or paramagnetic powders enveloped or in part not enveloped by poly(meth)acrylates, and to their use.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: September 27, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Sebastian Roos, Gerd Loehden, Jan Hendrik Schattka, Manfred Braum, Markus Pridoehl, Guido Zimmermann, Andreas Huether
  • Publication number: 20110147641
    Abstract: Surface-modified superparamagnetic oxidic particles, characterized by the following physicochemical characteristics: BET surface area 20 to 75 m2/g; Carbon content 0.5 to 6.0% by weight; Tamped density 150 to 500 g/l; Chlorine content 50 to 1000 ppm; Drying loss 0.1 to 4.0% by weight are prepared by contacting the oxides with the surface modifier either by spraying or vapour deposition and then heat-treating them. The surface-modified oxidic particles can be used as a filler in adhesives. Further fields of application are use for data carriers, as a contrast agent in imaging processes, for biochemical separation and analysis processes, for medical applications, as an abrasive, as a catalyst or as a catalyst support, as a thickener, for thermal insulation, as a dispersing assistant, as a flow assistant and in ferrofluids.
    Type: Application
    Filed: March 30, 2009
    Publication date: June 23, 2011
    Applicant: Evonik Degussa GMBH
    Inventors: Juergen Meyer, Markus Pridoehl, Guido Zimmermann, Michael Kroell, Stipan Katusic
  • Patent number: 7927570
    Abstract: An aggregated crystalline silicon powder with a BET surface area of 20 to 150 m2/g is provided. The aggregated crystalline silicon may be doped with a doping component and can be used to produce electronic components.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: April 19, 2011
    Assignee: Evonik Degussa GmbH
    Inventors: Markus Pridoehl, Paul Roth, Hartmut Wiggers, Frank-Martin Petrat, Michael Kraemer