Patents by Inventor Marc Stephan

Marc Stephan 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: 10988565
    Abstract: The invention provides a process for producing polyurethane foams, in which compositions comprising A) isocyanate-functional prepolymers obtainable by the reaction of A1) low molecular weight diisocyanates of molar mass from 140 to 278 g/mol with A2) polyalkylene oxides having an OH functionality of two or more, A3) optionally further isocyanate-reactive components not covered by A2), B) water in an amount of at least 2% by weight, based on the total weight of the composition; C) optionally heterocyclic 4-membered or 6-membered ring oligomers of low molecular weight diisocyanates having a molar mass of 140 to 278 g/mol; D) optionally catalysts; E) optionally salts of weak acids, the corresponding free acids of which have a pKA in water at 25° C. of ?3.0 and ?14.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: April 27, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Jan Suetterlin, Marc-Stephan Weiser, Sascha Plug, Sebastian Dörr, Claudine Stoye
  • Patent number: 10941238
    Abstract: The present invention relates to a viscoelastic element comprising a polyurethane foam, wherein the polyurethane foam can be obtained by reacting at least one isocyanate-functional prepolymer (VI) in the presence of a special polyurethane urea dispersion (V2), wherein the reaction of the prepolymer (VI) takes place in the presence of the polyurethane urea (V2) with a medium containing isocyanate-reactive groups. The invention also relates to a method for producing the viscoelastic element and to the use thereof.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: March 9, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Marc-Stephan Weiser, Sascha Plug, Sebastian Doerr, Jeff Motley
  • Patent number: 10921751
    Abstract: The invention relates to a method for producing a holographic optical element by providing a recording stack comprising at least one recording element laminated on at least one supporting element, irradiating at least a part of the recording stack with at least one recording beam in an irradiating step, wherein during the irradiating step, the recording stack bends, providing a bending deviation threshold for the recording stack, and adjusting at least one first process parameter such that an expected maximum bending deviation of the recording stack does not exceed the bending deviation threshold, wherein the at least one first process parameter influences the bending behaviour of the recording stack during the irradiating step.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: February 16, 2021
    Assignees: LG Display Co., Ltd., Covestro Deutschland AG
    Inventors: Hyungseok Bang, Heejin Im, Guensik Lee, Friedrich-Karl Bruder, Thomas Peter Facke, Marc-Stephan Weiser, Rainer Hagen, Thomas Rolle, Horst Berneth, Dennis Honel, Günther Walze
  • Patent number: 10907078
    Abstract: The invention relates to a contact adhesive product, comprising a substrate and a polyurethane resin, which can be obtained by reacting at least A) an aliphatic polyisocyanate component having an average isocyanate functionality of ?1.8 and ?2.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: February 2, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Sebastian Dörr, Marc-Stephan Weiser, Sascha Plug
  • Patent number: 10883026
    Abstract: The present invention relates to an adhesive producible from an aqueous polyurethaneurea dispersion comprising an amorphous polyurethaneurea (V1) obtainable by reacting at least A) one aliphatic, cycloaliphatic or araliphatic polyisocyanate component having an average isocyanate functionality of ?1.8 and ?2.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: January 5, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Marc-Stephan Weiser, Sascha Plug, Sebastian Doerr
  • Publication number: 20200377643
    Abstract: The present invention relates to a viscoelastic element comprising a polyurethane foam, wherein the polyurethane foam can be obtained by reacting at least one isocyanate-functional prepolymer (V1) in the presence of a special polyurethane urea dispersion (V2), wherein the reaction of the prepolymer (V1) takes place in the presence of the polyurethane urea (V2) with a medium containing isocyanate-reactive groups. The invention also relates to a method for producing the viscoelastic element and to the use thereof.
    Type: Application
    Filed: October 2, 2018
    Publication date: December 3, 2020
    Inventors: Marc-Stephan Weiser, Sascha Plug, Sebastian Doerr, Jeff Motley
  • Publication number: 20200354614
    Abstract: The present invention relates to an adhesive producible from an aqueous polyurethaneurea dispersion comprising an amorphous polyurethaneurea (V1) obtainable by reacting at least A) one aliphatic, cycloaliphatic or araliphatic polyisocyanate component having an average isocyanate functionality of ?1.8 and ?2.
    Type: Application
    Filed: December 13, 2018
    Publication date: November 12, 2020
    Inventors: Marc-Stephan Weiser, Sascha Plug, Sebastian Doerr
  • Publication number: 20200247723
    Abstract: A process for providing fluoresence to a dental ceramic body by treating at least a portion of the outer surface of the dental ceramic body or a precursor thereof with a bismuth containing substance, characterized by the steps of placing the dental ceramic body or the precursor thereof into a closeable container, in particular a crucible; generating a bismuth containing atmosphere in the container and exposing at least a portion of the outer surface of the dental ceramic body or of the precursor to the bismuth containing atmosphere at a temperature above 1000° C.
    Type: Application
    Filed: April 24, 2020
    Publication date: August 6, 2020
    Applicant: STRAUMANN HOLDING AG
    Inventors: Alexander ZWAHLEN, Marc STEPHAN
  • Patent number: 10662120
    Abstract: A process for providing fluoresence to a dental ceramic body by treating at least a portion of the outer surface of the dental ceramic body or a precursor thereof with a bismuth containing substance, characterized by the steps of placing the dental ceramic body or the precursor thereof into a closeable container, in particular a crucible; generating a bismuth containing atmosphere in the container and exposing at least a portion of the outer surface of the dental ceramic body or of the precursor to the bismuth containing atmosphere at a temperature above 1000° C.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: May 26, 2020
    Assignee: STRAUMANN HOLDING AG
    Inventors: Alexander Zwahlen, Marc Stephan
  • Patent number: 10606212
    Abstract: The invention relates to a method for selecting compounds which can be used as additives in photopolymer formulations for producing light holographic media, and to photopolymer formulations which contain at least one softener which are selected according to the claimed method. The invention also relates to the use of photopolymer formulations for producing holographic media.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: March 31, 2020
    Assignee: Covestro Deutschland AG
    Inventors: Thomas Roelle, Friedrich-Karl Bruder, Thomas Fäcke, Marc-Stephan Weiser, Dennis Hönel, Christian Diedrich
  • Publication number: 20200054781
    Abstract: The invention relates to a process for producing a composite material for wound dressings, comprising the following steps: (I) providing a first film, having a first film surface and a second film surface running virtually parallel to the first film surface; (II) mixing an NCO-terminated polyurethane prepolymer with at least water to give a polyurethane prepolymer/water mixture, (III) applying the polyurethane prepolymer/water mixture to at least one part of the first film surface to form a layer, the layer having a first layer surface which is in contact with the first film via at least one part of the first film surface, and having a second layer surface which runs virtually parallel to the first layer surface; (IV) covering at least one part of the second layer surface with a further film, wherein the bond strength between the first film and the layer and also between the layer and the further film is greater in each case than the tensile strain at break of the layer.
    Type: Application
    Filed: February 13, 2018
    Publication date: February 20, 2020
    Inventors: Marc-Stephan WEISER, Sascha PLUG, Sebastian DÖRR
  • Patent number: 10514657
    Abstract: The invention relates to a method for selecting compounds which can be used as additives in photopolymer formulations for producing light holographic media, and to photopolymer formulations which contain at least one softener which are selected according to the claimed method. The invention also relates to the use of photopolymer formulations for producing holographic media.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: December 24, 2019
    Assignee: Covestro Deutschland AG
    Inventors: Thomas Roelle, Friedrich-Karl Bruder, Thomas Fäcke, Marc-Stephan Weiser, Dennis Hönel, Christian Diedrich
  • Publication number: 20190382635
    Abstract: The invention relates to a contact adhesive product, comprising a substrate and a polyurethane resin, which can be obtained by reacting at least A) an aliphatic polyisocyanate component having an average isocyanate functionality of ?1.8 and ?2.
    Type: Application
    Filed: June 29, 2017
    Publication date: December 19, 2019
    Applicant: Covestro Deutschland AG
    Inventors: Sebastian DÖRR, Marc-Stephan WEISER, Sascha PLUG
  • Patent number: 10444420
    Abstract: The invention relates to an indirect lighting arrangement (2, 2.1, 2.2, 2.3, 2.4, 2.5) comprising at least one cylindrical waveguide (4). At least one end (12.1, 12.2) of the cylindrical waveguide (4) is designed to couple light from a first light source (1) into the cylindrical waveguide (4), and the lateral surface (10) of the cylindrical wave guide (4) has a coupling section (6) which is designed to optically couple the cylindrical waveguide (4) to an arrangeable plate-shaped waveguide (16). At least the coupling section (6) has at least one holographic optical element (8) which is designed to emit light from the cylindrical waveguide (4) into the arrangeable plate-shaped waveguide (16).
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: October 15, 2019
    Assignee: Covestro Deutschland AG
    Inventors: Rainer Hagen, Günther Walze, Thomas Fäcke, Friedrich-Karl Bruder, Dennis Hönel, Thomas Rölle, Horst Berneth, Marc-Stephan Weiser
  • Patent number: 10411000
    Abstract: A microelectronic package is described with an illuminated backside exterior. In one example, the package has a package substrate, a die attached to the package substrate, a cover over the die and the package substrate, a lamp, and a screen over the die, externally visible and optically coupled to the lamp so that when the lamp is illuminated the illumination is externally visible through the screen.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: September 10, 2019
    Assignee: Intel IP Corporation
    Inventors: Marc Stephan Dittes, Sven Albers, Christian Georg Geissler, Andreas Wolter, Klaus Reingruber, Georg Seidemann, Thomas Wagner, Richard Patten
  • Publication number: 20190233691
    Abstract: The invention relates to an adhesive that can be produced from an aqueous polyurethane urea dispersion, containing an amorphous polyurethane urea, which can be obtained by reacting at least A) an aliphatic polyisocyanate component having an average isocyanate functionality of ?1.8 and ?2.
    Type: Application
    Filed: June 27, 2017
    Publication date: August 1, 2019
    Inventors: Sebastian DÖRR, Marc-Stephan WEISER, Sascha PLUG
  • Publication number: 20190218329
    Abstract: The invention provides a process for producing polyurethane foams, the foams thus produced and the uses thereof. In the inventive process compositions comprising A) isocyanate-functional prepolymers obtainable by the reaction of A1) aliphatic, low molecular weight diisocyanates of molar mass from 140 to 278 g/mol with A2) polyalkylene oxides having an OH functionality of two or more, A3) optionally further isocyanate-reactive components not covered by A2), B) water in an amount of at least 2% by weight, based on the total weight of the composition; C) optionally heterocyclic 4-membered or 6-membered ring oligomers of low molecular weight, aliphatic diisocyanates having a molar mass of 140 to 278 g/mol; D) optionally catalysts; E) optionally salts of weak acids, the corresponding free acids of which have a pKA in water at 25° C. of ?3.0 and ?14.
    Type: Application
    Filed: January 11, 2019
    Publication date: July 18, 2019
    Inventors: Jan Suetterlin, Marc-Stephan Weiser, Sascha Plug, Sebastian Dörr, Claudine Stoye
  • Publication number: 20190218330
    Abstract: The invention provides a process for producing polyurethane foams, the foams thus produced and the uses thereof. In the inventive process compositions comprising A) isocyanate-functional prepolymers obtainable by the reaction of A1) aliphatic, low molecular weight diisocyanates of molar mass from 140 to 278 g/mol with A2) polyalkylene oxides having an OH functionality of two or more, A3) optionally further isocyanate-reactive components not covered by A2), B) water in an amount of at least 2% by weight, based on the total weight of the composition; C) optionally heterocyclic 4-membered or 6-membered ring oligomers of low molecular weight, aliphatic diisocyanates having a molar mass of 140 to 278 g/mol; D) optionally catalysts; E) optionally salts of weak acids, the corresponding free acids of which have a pKA in water at 25° C. of ?3.0 and ?14.
    Type: Application
    Filed: January 11, 2019
    Publication date: July 18, 2019
    Inventors: Jan Suetterlin, Marc-Stephan WEISER, Sascha PLUG, Sebastian DÖRR, Claudine STOYE
  • Patent number: 10254465
    Abstract: The invention relates to an illumination device for illuminating at least one light modulator system of a liquid crystal display, the device comprising at least one waveguide substrate for guiding at least one targeted light beam that can be coupled into the waveguide substrate. The waveguide substrate is at least in optical contact with at least one holographic optical decoupling substrate comprising a plurality of decoupling regions and a decoupling region is at least designed to decouple part of the targeted light beam in the form of a plurality of sub-beams in the direction of the light modulator system. At least one diffuser module is provided, said diffuser module being designed in such a way that at least the outermost sub-beams of two neighboring decoupling regions are at least adjacent to one another before exiting the diffuser module.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: April 9, 2019
    Assignee: Covestro Deutschland AG
    Inventors: Thomas Fäcke, Friedrich-Karl Bruder, Rainer Hagen, Günther Walze, Thomas Roelle, Horst Berneth, Dennis Hönel, Marc-Stephan Weiser, Werner Hoheisel
  • Publication number: 20190001011
    Abstract: A process for the preparation of a sterilized ceramic body including or essentially consisting of stabilized zirconia of a defined colour, including the steps of: providing a ceramic primary body including or essentially consisting of stabilized zirconia of a first colour A, and sterilizing the primary body using radiation sterilization whereby the primary body undergoes a colour change to a colour B. The process includes the further step of irradiating the sterilized primary body with electromagnetic radiation of at least one wavelength lying in the wavelength band ranging from 150 nm to 700 nm to induce an at least partial reversal of the colour change to obtain a colour C of the sterilized ceramic body, the colour C complying with the following requirements in the CIELAB colour space: L* being from 54 to 95, a* being from ?15 to 15 and b* being from ?15 to 15.
    Type: Application
    Filed: December 22, 2016
    Publication date: January 3, 2019
    Applicant: STRAUMANN HOLDING AG
    Inventors: Adrian ROHNER, Simon BERNER, Marc STEPHAN