Patents by Inventor Jorg Buchner
Jorg Buchner 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: 11440242Abstract: A process for manufacturing an article comprises the steps of: I) applying a filament of an at least partially fused construction material to a support so as to obtain a layer of the construction material which corresponds to a first selected cross-section of the article; II) applying a filament of the at least partially fused construction material to a previously applied layer of the construction material so as to obtain a further layer of the construction material which corresponds to a further selected cross-section of the article and which is bonded to the previously applied layer; and III) repeating step II) until the article is formed. At least steps II) and III) are carried out in a chamber and the construction material comprises a fusible polymer. The fusible polymer has a fusion range (DSC, differential scanning calorimetry; 2nd heating at a heating rate of 5 K/min.) of ?20° C. to ?100° C.Type: GrantFiled: September 11, 2017Date of Patent: September 13, 2022Assignee: Covestro Deutschland AGInventors: Dirk Achten, Thomas Büsgen, Dirk Dijkstra, Nicolas Degiorgio, Roland Wagner, Levent Akbas, Peter Reichert, Jörg Büchner
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Patent number: 10926459Abstract: A process for manufacturing an article comprises the steps of: applying a layer that consists of particles to a target area; allowing, in a chamber, energy to act on a selected portion of the layer, according to a cross-section of the article, so that the particles in the selected portion are bonded, and repeating the steps of applying and allowing energy to act for a plurality of layers so that the bonded portions of the adjacent layers are bonded to form the article, at least part of the particles comprising a fusible polymer. The fusible polymer has a fusion range (DSC, differential scanning calorimetry; 2nd heating at a heating rate of 5 K/min.) of ?20° C. to ?100° C. The fusible polymer further has a complex viscosity \?*\ (determined by viscosity measurement in the melt using a plate-plate oscillating viscometer according to ISO 6721-10 at 100° C. and a shear rate of 1/s) of ?10 Pas to ?1000000 Pas. Finally, the temperature inside the chamber is ?50° C.Type: GrantFiled: September 11, 2017Date of Patent: February 23, 2021Assignee: Covestro Deutschland AGInventors: Dirk Achten, Thomas Büsgen, Dirk Dijkstra, Nicolas Degiorgio, Wolfgang Arndt, Levent Akbas, Roland Wagner, Peter Reichert, Jörg Büchner
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Publication number: 20190217533Abstract: A process for manufacturing an article comprises the steps of: I) applying a filament of an at least partially fused construction material to a support so as to obtain a layer of the construction material which corresponds to a first selected cross-section of the article; II) applying a filament of the at least partially fused construction material to a previously applied layer of the construction material so as to obtain a further layer of the construction material which corresponds to a further selected cross-section of the article and which is bonded to the previously applied layer; and III) repeating step II) until the article is formed. At least steps II) and III) are carried out in a chamber and the construction material comprises a fusible polymer. The fusible polymer has a fusion range (DSC, differential scanning calorimetry; 2nd heating at a heating rate of 5 K/min.) of ?20° C. to ?100° C.Type: ApplicationFiled: September 11, 2017Publication date: July 18, 2019Inventors: Dirk Achten, Thomas BÜSGEN, Dirk DIJKSTRA, Nicolas DEGIORGIO, Roland WAGNER, Levent AKBAS, Peter REICHERT, Jörg BÜCHNER
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Publication number: 20190184632Abstract: A process for manufacturing an article comprises the steps of: applying a layer that consists of particles to a target area; allowing, in a chamber, energy to act on a selected portion of the layer, according to a cross-section of the article, so that the particles in the selected portion are bonded, and repeating the steps of applying and allowing energy to act for a plurality of layers so that the bonded portions of the adjacent layers are bonded to form the article, at least part of the particles comprising a fusible polymer. The fusible polymer has a fusion range (DSC, differential scanning calorimetry; 2nd heating at a heating rate of 5 K/min.) of ?20 ° C. to ?100 ° C. The fusible polymer further has a complex viscosity \?*\ (determined by viscosity measurement in the melt using a plate-plate oscillating viscometer according to ISO 6721-10 at 100° C. and a shear rate of 1/s) of ?10 Pas to ?1000000 Pas. Finally, the temperature inside the chamber is ?50° C.Type: ApplicationFiled: September 11, 2017Publication date: June 20, 2019Inventors: Dirk ACHTEN, Thomas BÜSGEN, Dirk DIJKSTRA, Nicolas DEGIORGIO, Wolfgang ARNDT, Levent AKBAS, Roland WAGNER, Peter REICHERT, Jörg BÜCHNER
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Patent number: 9353221Abstract: The present invention relates to aqueous dispersions containing hydrophilized polycarbodiimides, methods for producing the aqueous dispersions according to the invention, their use as a constituent of binders in adhesives, lacquers, paints, paper coating compounds or in fiber nonwovens and articles made of wood, metal, textile, leather or plastic, which are treated with the aqueous dispersion according to the invention.Type: GrantFiled: March 28, 2011Date of Patent: May 31, 2016Assignee: Covestro Deutschland AGInventors: Evgeny Avtomonov, Harald Kraus, Sebastian Dörr, Dirk Achten, Jörg Büchner
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Patent number: 9321939Abstract: Method for the production of adhesive-coated articles, articles obtainable thereby and their use A method for the production of adhesive-coated articles comprises the steps of: (I) providing a substrate; (II) applying a first polyurethane and/or polyurethane-polyurea polymer onto the substrate, the first polyurethane and/or polyurethane-polyurea polymer being capable of attaining an at least partially crystalline state with a final degree of crystallinity and wherein during and/or after the application the first polyurethane and/or polyurethane-polyurea polymer is present in a non-crystalline state.Type: GrantFiled: September 14, 2011Date of Patent: April 26, 2016Assignee: Covestro Deutschland AGInventors: Jörg Büchner, Harald Kraus, Pantea Nazaran, Matthias Wintermantel
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Patent number: 9187680Abstract: Hot-sealable coating systems and method for joining surfaces The present invention relates to a hot-sealable coating system, comprising a polyurethane and/or polyurethane-polyurea polymer (I) and an olefin vinyl acetate copolymer (II). The polyurethane and/or polyurethane-polyurea polymer (I) is obtainable by the reaction of (A) at least one diol and/or polyol component, (B) at least one di- and/or polyisocyanate component, (C) at least one component having sulphonate and/or carboxylate groups, (D) mono-, di- and/or tri-amino-functional and/or hydroxyamino-functional compounds (as appropriate), (E) other isocyanate-reactive compounds (as appropriate). The polyurethane and/or polyurethane-polyurea polymer (I) has a glass transition temperature of ?10° C. and the olefin vinyl acetate copolymer (II) has a minimum film forming temperature (white point temperature) of >+40° C.Type: GrantFiled: November 8, 2011Date of Patent: November 17, 2015Assignee: Bayer Intellectual Property GmbHInventors: Jörg Buchner, Harald Kraus, Matthias Wintermantel, Dirk Achten
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Patent number: 9108357Abstract: The present invention relates to a process for overlaying a base substance with a multilayer decorative film in a vacuum forming, a multilayer decorative film for a secondary decoration used in such a vacuum forming process, to a multilayer decorative film excellent in adhesiveness, workability, and secondary physical properties such as heat resistance and hydrolysis resistance after forming and the use of such multilayer decorative film in a vacuum forming process.Type: GrantFiled: November 15, 2011Date of Patent: August 18, 2015Assignee: Bayer Intellectual Property GmbHInventors: Takahiko Ohwada, Jörg Büchner, Holger Mundstock
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Patent number: 8980407Abstract: The invention relates to an aqueous adhesive composition containing at least one acrylate polymer with a glass transition temperature Tg>50° C. and at least one amorphous polyurethane or polyurethane-polyurea polymer with a glass transition temperature Tg<+10° C., the use of the adhesive compositions for the manufacture of heat-activated adhesive layers, and planar formations containing adhesive layers based on the adhesive composition.Type: GrantFiled: June 3, 2011Date of Patent: March 17, 2015Assignee: Bayer Intellectual Property GmbHInventors: Jörg Büchner, Harald Kraus, Pantea Nazaran, Dirk Dijkstra
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Patent number: 8911851Abstract: A document (2) containing: electronic components (14) and/or diffractive security elements; at least one protective layer (4, 5) being arranged on one side or two protective layers (4, 5) being arranged on both sides of the electronic components (14) and/or of the diffractive security element, said protective layers being formed of a first base polymer, polymer layers (8, 9, 12, 13), being formed of a second base polymer being different from the first base polymer, into which the electronic components (14) and/or the diffractive security element with the protective layers (4, 5) are laminated; and adhesive layers with a latent-reactive adhesive (10, 11) being arranged at least between the polymer layers (8, 9, 12, 13) and the protective layers (4, 5), and wherein the core layer or protective layers are formed of a thermoplastic elastomer.Type: GrantFiled: July 20, 2009Date of Patent: December 16, 2014Assignee: Bayer MaterialScience AGInventors: Reinhard Löwe, Per Krüger, Michael Knebel, Jens Ehreke, Heinz Pudleiner, Mehmet-Cengiz Yesildag, Klaus Meyer, Dirk Pophusen, Jörg Büchner
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Patent number: 8846198Abstract: The present invention relates to aqueous compositions based on crystalline or semicrystalline polyurethane polymers, processes for the preparation thereof and adhesive systems comprising these aqueous compositions and the use thereof.Type: GrantFiled: October 25, 2010Date of Patent: September 30, 2014Assignee: Bayer MaterialScience AGInventors: Jörg Büchner, Dirk Achten, Harald Kraus, Wolfgang Arndt
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Patent number: 8779650Abstract: The present invention relates to a method for producing an electromechanical, for example piezoelectric, transducer in which a first polymer layer comprising cutouts is applied to a first continuous polymer layer by means of a printing and/or coating method, a cover is applied to the first polymer layer comprising cutouts in such a way that the cutouts of the first polymer layer comprising cutouts are closed off with the formation of cavities, and the cover is connected to the first polymer layer comprising cutouts. The invention also relates to electromechanical transducers produced by the method according to the invention, and the use of said electromechanical transducers.Type: GrantFiled: April 10, 2010Date of Patent: July 15, 2014Assignee: Bayer MaterialScience AGInventors: Werner Jenninger, Joachim Wagner, Wolfgang Fischer, Jörg Büchner, Thomas Bernert, Andreas Nübler
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Publication number: 20130269874Abstract: Hot-sealable coating systems and method for joining surfaces The present invention relates to a hot-sealable coating system, comprising a polyurethane and/or polyurethane-polyurea polymer (I) and an olefin vinyl acetate copolymer (II). The polyurethane and/or polyurethane-polyurea polymer (I) is obtainable by the reaction of (A) at least one diol and/or polyol component, (B) at least one di-and/or polyisocyanate component, (C) at least one component having sulphonate and/or carboxylate groups, (D) mono-, di-and/or tri-amino-functional and/or hydroxyamino-functional compounds (as appropriate), (E) other isocyanate—reactive compounds (as appropriate). The polyurethane and/or polyurethane-polyurea polymer (I) has a glass transition temperature of ?10 ° C. and the olefin vinyl acetate copolymer (II) has a minimum film forming temperature (white point temperature) of >+40° C.Type: ApplicationFiled: November 8, 2011Publication date: October 17, 2013Applicant: Bayer Intellectual Property GmbHInventors: Jörg Buchner, Harald Kraus, Matthias Wintermantel, Dirk Achten
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Publication number: 20130236719Abstract: The present invention relates to a process for overlaying a base substance with a multilayer decorative film in a vacuum forming, a multilayer decorative film for a secondary decoration used in such a vacuum forming process, to a multilayer decorative film excellent in adhesiveness, workability, and secondary physical properties such as heat resistance and hydrolysis resistance after forming and the use of such multilayer decorative film in a vacuum forming process.Type: ApplicationFiled: November 15, 2011Publication date: September 12, 2013Inventors: Takahiko Ohwada, Jörg Büchner, Holger Mundstock
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Publication number: 20130220543Abstract: Method for the production of adhesive-coated articles, articles obtainable thereby and their use A method for the production of adhesive-coated articles comprises the steps of: (I) providing a substrate; (II) applying a first polyurethane and/or polyurethane-polyurea polymer onto the substrate, the first polyurethane and/or polyurethane-polyurea polymer being capable of attaining an at least partially crystalline state with a final degree of crystallinity and wherein during and/or after the application the first polyurethane and/or polyurethane-polyurea polymer is present in a non-crystalline state.Type: ApplicationFiled: September 14, 2011Publication date: August 29, 2013Applicant: Bayer Intellectual Property GmbHInventors: Jörg Büchner, Harald Kraus, Pantea Nazaran, Matthias Wintermantel
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Publication number: 20130143010Abstract: The invention relates to an aqueous adhesive composition containing at least one acrylate polymer with a glass transition temperature Tg>50° C. and at least one amorphous polyurethane or polyurethane-polyurea polymer with a glass transition temperature Tg<+10° C., the use of the adhesive compositions for the manufacture of heat-activated adhesive layers, and planar formations containing adhesive layers based on the adhesive composition.Type: ApplicationFiled: June 3, 2011Publication date: June 6, 2013Applicant: Bayer Intellectual Property GmbH Creative Campus MonheimInventors: Jörg Büchner, Harald Kraus, Pantea Nazaran, Dirk Dijkstra
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Publication number: 20130143458Abstract: The present invention relates to aqueous dispersions containing hydrophilized polycarbodiimides, methods for producing the aqueous dispersions according to the invention, their use as a constituent of binders in adhesives, lacquers, paints, paper coating compounds or in fibre nonwovens and articles made of wood, metal, textile, leather or plastic, which are treated with the aqueous dispersion according to the invention.Type: ApplicationFiled: March 28, 2011Publication date: June 6, 2013Inventors: Evgeny Avtomonov, Harald Kraus, Sebastian Dörr, Dirk Achten, Jörg Büchner
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Publication number: 20120225302Abstract: The present invention relates to aqueous compositions based on crystalline or semicrystalline polyurethane polymers, processes for the preparation thereof and adhesive systems comprising these aqueous compositions and the use thereof.Type: ApplicationFiled: October 25, 2010Publication date: September 6, 2012Applicant: Bayer Intellectual Property GmbHInventors: Jörg Büchner, Dirk Achten, Harald Kraus, Wolfgang Arndt
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Publication number: 20120068572Abstract: The present invention relates to a method for producing an electromechanical, for example piezoelectric, transducer in which a first polymer layer comprising cutouts is applied to a first continuous polymer layer by means of a printing and/or coating method, a cover is applied to the first polymer layer comprising cutouts in such a way that the cutouts of the first polymer layer comprising cutouts are closed off with the formation of cavities, and the cover is connected to the first polymer layer comprising cutouts. The invention also relates to electromechanical transducers produced by the method according to the invention, and the use of said electromechanical transducers.Type: ApplicationFiled: April 10, 2010Publication date: March 22, 2012Applicant: Bayer MaterialScience AGInventors: Werner Jenninger, Joachim Wagner, Wolfgang Fischer, Jörg Büchner, Thomas Bernert, Andreas Nübler
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Publication number: 20110274883Abstract: The invention relates to a security and/or valuable document (2) comprising electronic components (4) and/or diffractive security elements, comprising at least one protective layer (4, 5) being arranged on one side or two protective layers (4, 5) being arranged on both sides of the electronic components (4) and/or of the diffractive security element, said protective layers (4, 5) being formed of a first base polymer, comprising polymer layers (8, 9, 12, 13) being formed of a second base polymer being different from the first base polymer, into said polymer layers (8, 9, 12, 13) the electronic components (4) and/or the diffractive security element with the protective layers (4, 5) being laminated, adhesive layers (10, 11) with a latent-reactive adhesive being arranged at least between the polymer layers (8, 9, 12, 13) and the protective layers (6, 7).Type: ApplicationFiled: July 20, 2009Publication date: November 10, 2011Applicant: Bayer MaterialScience AGInventors: Reinhard Löwe, Per Krüger, Michael Knebel, Jens Ehreke, Heinz Pudleiner, Mehmet-Cengiz Yesildag, Klaus Meyer, Dirk Pophusen, Jörg Büchner