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).
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Patent number: 10688718Abstract: 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: GrantFiled: September 11, 2017Date of Patent: June 23, 2020Assignee: Evonik Operations GmbHInventors: Stephan Wieber, Dirk Poppe, Stefan Bernhardt, Markus Pridöhl, Sven Balk, Christian Meier, Senada Schaack, Thomas Hasskerl
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Publication number: 20190337282Abstract: 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: ApplicationFiled: July 15, 2019Publication date: November 7, 2019Applicant: Evonik Röhm GmbHInventors: Markus PRIDOEHL, Ulrike BEHRENS, Stefan BERNHARDT, Ann-Kristin KLAAR, Samuel von KARSA-WILBERFORCE
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Patent number: 9433969Abstract: 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: GrantFiled: October 31, 2013Date of Patent: September 6, 2016Assignee: EVONIK RÖHM GmbHInventors: Markus Pridoehl, Guenter Schmitt, Dirk Poppe, Stephan Kohlstruk, Benjamin Hammann, Sonja Cremer, Kris Beks, Ludo Dewaelheyns
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Patent number: 9283714Abstract: 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: GrantFiled: April 3, 2012Date of Patent: March 15, 2016Assignee: Evonik Röhm GmbHInventors: Markus Pridoehl, Guenter Schmitt, Dirk Poppe, Stephan Kohlstruk, Benjamin Hammann, Sonja Cremer, Kris Beks, Ludo Dewaelheyns
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Publication number: 20160059488Abstract: 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: ApplicationFiled: September 8, 2015Publication date: March 3, 2016Applicant: EVONIK ROEHM GmbHInventors: Markus PRIDOEHL, Guenter SCHMITT, Dirk POPPE, Stephan KOHLSTRUK, Benjamin HAMMANN, Sonja CREMER, Kris BEKS, Ludo DEWAELHEYNS
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Patent number: 9193110Abstract: 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: GrantFiled: November 6, 2013Date of Patent: November 24, 2015Assignee: Evonik Industries AGInventors: Markus Pridoehl, Ulrike Behrens, Stefan Bernhardt, Ann-Kristin Klaar, Samuel von Karsa-Wilberforce
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Publication number: 20150321424Abstract: 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: ApplicationFiled: July 20, 2015Publication date: November 12, 2015Applicant: Evonik Industries AGInventors: Markus PRIDOEHL, Ulrike BEHRENS, Stefan BERNHARDT, Ann-Kristin KLAAR, Samuel von KARSA-WILBERFORCE
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Maleic anhydride copolymers as soluble support material for fused deposition modelling (FDM) printer
Patent number: 8822590Abstract: 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: GrantFiled: March 13, 2012Date of Patent: September 2, 2014Assignee: Evonik Röhm GmbHInventors: Florian Hermes, Stefan Bernhardt, Dirk Poppe, Guenter Schmitt, Markus Pridoehl, Gerd Loehden -
Publication number: 20140134334Abstract: 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: ApplicationFiled: October 31, 2013Publication date: May 15, 2014Applicant: Evonik Industries AGInventors: Markus PRIDOEHL, Guenter Schmitt, Dirk Poppe, Stephan Kohlstruk, Benjamin Hammann, Sonja Cremer, Kris Beks, Ludo Dewaelheyns
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Publication number: 20140134335Abstract: 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: ApplicationFiled: November 6, 2013Publication date: May 15, 2014Applicant: Evonik Industries AGInventors: Markus PRIDOEHL, Ulrike Behrens, Stefan Bernhardt, Ann-Kristin Klaar, Samuel von Karsa-Wilberforce
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Publication number: 20140088751Abstract: 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: ApplicationFiled: April 3, 2012Publication date: March 27, 2014Applicant: Evonik Roehm GmbHInventors: Markus Pridoehl, Guenter Schmitt, Dirk Poppe, Stephan Kohlstruk, Benjamin Hammann, Sonja Cremer, Kris Beks, Ludo Dewaelheyns
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Publication number: 20140079841Abstract: 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: ApplicationFiled: April 3, 2012Publication date: March 20, 2014Applicant: Evonik Roehm GmbHInventors: Markus Pridoehl, Guenter Schmitt, Dirk Poppe, Stephan Kohlstruk, Benjamin Hammann, Sonja Cremer, Kris Beks, Ludo Dewaelheyns
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MALEIC ANHYDRIDE COPOLYMERS AS SOLUBLE SUPPORT MATERIAL FOR FUSED DEPOSITION MODELLING (FDM) PRINTER
Publication number: 20130317164Abstract: 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: ApplicationFiled: March 13, 2012Publication date: November 28, 2013Applicant: Evonik Roehm GmbHInventors: Florian Hermes, Stefan Bernhardt, Dirk Poppe, Guenter Schmitt, Markus Pridoehl, Gerd Loehden -
Patent number: 8524342Abstract: 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: GrantFiled: September 15, 2006Date of Patent: September 3, 2013Assignee: Evonik Degussa GmbHInventors: Harald Häger, Markus Pridöhl, Guido Zimmermann, Karl Kuhmann, Rainer Göring
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Patent number: 8343410Abstract: 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: GrantFiled: August 21, 2009Date of Patent: January 1, 2013Assignee: Evonik Degussa GmbHInventors: Lars Herbeck, Thorsten Mahrholz, Tobias Stroehlein, Juergen Mosch, Michael Frauenhofer, Stefan Boehm, Klaus Dilger, Harald Haeger, Christian Baron, Markus Pridoehl
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Publication number: 20120111499Abstract: 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: ApplicationFiled: January 17, 2012Publication date: May 10, 2012Applicant: EVONIK DEGUSSA GmbHInventors: Sebastian ROOS, Gerd Löhden, Jan Hendrik Schattka, Manfred Braum, Markus Pridöhl, Guido Zimmermann, Andreas Hüther
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Patent number: 8043593Abstract: 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: GrantFiled: April 13, 2010Date of Patent: October 25, 2011Assignee: Evonik Degussa GmbHInventors: Markus Pridoehl, Paul Roth, Hartmut Wiggers, Frank-Martin Petrat, Michael Kraemer
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Patent number: 8025756Abstract: 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: GrantFiled: November 21, 2006Date of Patent: September 27, 2011Assignee: Evonik Degussa GmbHInventors: Sebastian Roos, Gerd Loehden, Jan Hendrik Schattka, Manfred Braum, Markus Pridoehl, Guido Zimmermann, Andreas Huether
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Publication number: 20110147641Abstract: 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: ApplicationFiled: March 30, 2009Publication date: June 23, 2011Applicant: Evonik Degussa GMBHInventors: Juergen Meyer, Markus Pridoehl, Guido Zimmermann, Michael Kroell, Stipan Katusic
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Patent number: 7927570Abstract: 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: GrantFiled: July 2, 2010Date of Patent: April 19, 2011Assignee: Evonik Degussa GmbHInventors: Markus Pridoehl, Paul Roth, Hartmut Wiggers, Frank-Martin Petrat, Michael Kraemer