Patents by Inventor Marita Kaufmann

Marita Kaufmann 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: 11447579
    Abstract: The present invention relates to a process for preparing a poly(meth)acrylic acid, characterized in that a (meth)acrylic acid-containing process stream from (meth)acrolein synthesis is subjected to free-radical polymerization. The invention also relates to the esterification of the polymer obtained to give a homopolymer or copolymer ester, and to the use thereof as additive, flow improver and water reducer.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: September 20, 2022
    Assignee: Roehm GmbH
    Inventors: Steffen Krill, Johannes Vorholz, Andreas Weber, Marita Kaufmann, Andrea Wittkowski
  • Publication number: 20220281801
    Abstract: The present invention describes storage-stable glycerol (meth)acrylate carboxylic esters and a method for preparing these esters.
    Type: Application
    Filed: May 22, 2022
    Publication date: September 8, 2022
    Applicant: Evonik Röhm GmbH
    Inventors: Patrik Hartmann, Marita Kaufmann, Steffen Krill, Thorben Schütz, Marcel Treskow, Andrea Wittkowski
  • Patent number: 11414373
    Abstract: The present invention describes storage-stable glycerol (meth)acrylate carboxylic esters and a method for preparing these esters.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: August 16, 2022
    Assignee: Evonik Operations GmbH
    Inventors: Patrik Hartmann, Marita Kaufmann, Steffen Krill, Thorben Schütz, Marcel Treskow, Andrea Wittkowski
  • Publication number: 20210115166
    Abstract: The present invention relates to a process for preparing a poly(meth)acrylic acid, characterized in that a (meth)acrylic acid-containing process stream from (meth)acrolein synthesis is subjected to free-radical polymerization. The invention also relates to the esterification of the polymer obtained to give a homopolymer or copolymer ester, and to the use thereof as additive, flow improver and water reducer.
    Type: Application
    Filed: August 1, 2018
    Publication date: April 22, 2021
    Applicant: Roehm GmbH
    Inventors: Steffen KRILL, Johannes VORHOLZ, Andreas WEBER, Marita KAUFMANN, Andrea WITTKOWSKI
  • Publication number: 20190352251
    Abstract: The present invention describes storage-stable glycerol (meth)acrylate carboxylic esters and a method for preparing these esters.
    Type: Application
    Filed: November 14, 2017
    Publication date: November 21, 2019
    Applicant: Evonik Röhm GmbH
    Inventors: Patrik HARTMANN, Marita KAUFMANN, Steffen KRILL, Thorben SCHÜTZ, Marcel TRESKOW, Andrea WITTKOWSKI
  • Patent number: 9701846
    Abstract: A radiation-reflecting road marking, comprising: metal particles having a diameter of between 0.5-2.5 mm, wherein the metal particles are particles comprising aluminum, magnesium, zinc or an alloy thereof. Also, a method for producing the radiation-reflecting road marking, where the radiation-reflecting road marking is a cold plastic, by mixing components of a two-part system, if necessary, to form a mixture, applying the mixture to a road surface, and adding the metal particles and optionally glass beads during or directly after an application of the cold plastic to the road surface.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: July 11, 2017
    Assignee: EVONIK ROEHM GmbH
    Inventors: Guido Protzmann, Joern Kiwitt, Dominik Kiefer, Guenter Schmitt, Marita Kaufmann, Michael Olapoju
  • Publication number: 20160017151
    Abstract: The present invention encompasses an innovative concept for the marking of trafficways, more particularly roads. The application qualities and lifetime of these new markings are comparable with those of the prior art. The markings also possess properties comparable with those of the prior art in respect of night visibility, back-in-service time, and surface quality. An additional contribution of the markings of the present invention, however, is that they can be used to support modern driver assistance systems and autonomous driving. With this in mind, the present invention relates more particularly to road markings which, building on established systems, are equipped with additional reflection capacity for electromagnetic radiation, more particular for microwaves and/or infrared radiation.
    Type: Application
    Filed: March 13, 2014
    Publication date: January 21, 2016
    Applicant: EVONIK ROEHM GMBH
    Inventors: Guido PROTZMANN, Jörn KIWITT, Dominik KIEFER, Günter SCHMITT, Marita KAUFMANN, Michael OLAPOJU
  • Publication number: 20150247297
    Abstract: The present invention encompasses an innovative concept for the marking of trafficways, more particularly roads. The application qualities and lifetime of these new markings are comparable with those of the prior art. The markings also possess properties comparable with those of the prior art in respect of night visibility, back-in-service time, and surface quality. An additional contribution of the markings of the present invention, however, is that they can be used to support modern driver assistance systems and autonomous driving. With this in mind, the present invention relates more particularly to road markings which, building on established systems, are equipped with additional reflection capacity for electromagnetic radiation, more particular for microwaves and/or infrared radiation.
    Type: Application
    Filed: November 6, 2013
    Publication date: September 3, 2015
    Applicant: EVONIK INDUSTRIES AG
    Inventors: Guido Protzmann, Joern Kiwitt, Dominik Kiefer, Guenter Schmitt, Marita Kaufmann, Michael Olapoju
  • Patent number: 8936853
    Abstract: The invention relates to plastisols which even without the addition of adhesion promoters exhibit high adhesion to metallic and cathodically deposition-coated substrates.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: January 20, 2015
    Assignee: Kaneka Belgium N.V.
    Inventors: Jan Hendrik Schattka, Gerd Loehden, Marita Kaufmann, Winfried Belzner, Michael Wolff, Rainer Lomoelder, Dirk Hoppe, Christoph Nacke
  • Patent number: 8084136
    Abstract: The invention relates to a heat-sealable coating system suitable for the sealing of various types of substrate and comprising a film-forming dispersion, characterized in that a polymer type A is present and is a polyester or a polyester mixture, a polymer type B is present and is a (meth)acrylate homo- or/and copolymer, containing standard methacrylates and/or standard acrylates, and a polymer type AB is present and is a graft copolymer composed of polymer type A and polymer type B, and if appropriate a polymer type C is present and is an olefin polymer or is an olefin copolymer, and a polymer type CB is present and is a graft polymer composed of polymer type C and polymer type B, and also if appropriate a polymer type D and/or a polymer type DA is present.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: December 27, 2011
    Assignee: Evonik Röhm GmbH
    Inventors: Gerd Loehden, Sven Balk, Marita Kaufmann, Axel Schroeder, Thorsten Brand, Gabriele Brenner
  • Patent number: 8025758
    Abstract: The invention relates to a heat-sealing system consisting of an olefin polymer or olefin copolymer A, a methacrylate copolymer B, a graft polymer AB that is composed of the aforementioned components, a polyester C and an optional polymer D or an optional polymer blend DA, in addition to a solvent or solvent mixture L. The heat-sealing system is characterised by a high heat resistance, excellent barrier properties and short sealing times in relation to various plastics and aluminium foil or PET film.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: September 27, 2011
    Assignee: Evonik Rohm GmbH
    Inventors: Gerd Loehden, Sven Balk, Manfred Braum, Juergen Hartmann, Marita Kaufmann, Michael Wicke
  • Publication number: 20110111238
    Abstract: The invention relates to plastisols which even without the addition of adhesion promoters exhibit high adhesion to metallic and cathodically deposition-coated substrates.
    Type: Application
    Filed: August 12, 2008
    Publication date: May 12, 2011
    Applicant: Evonik Roehm GmbH
    Inventors: Jan Hendrik Schattka, Gerd Loehden, Marita Kaufmann, Winfried Belzner, Michael Wolff, Rainer Lomoelder, Dirk Hoppe, Christoph Nacke
  • Publication number: 20080292893
    Abstract: The invention relates to a heat-sealable coating system suitable for the sealing of various types of substrate and comprising a film-forming dispersion, characterized in that a polymer type A is present and is a polyester or a polyester mixture, a polymer type B is present and is a (meth)acrylate homo- or/and copolymer, containing standard methacrylates and/or standard acrylates, and a polymer type AB is present and is a graft copolymer composed of polymer type A and polymer type B, and if appropriate a polymer type C is present and is an olefin polymer or is an olefin copolymer, and a polymer type CB is present and is a graft polymer composed of polymer type C and polymer type B, and also if appropriate a polymer type D and/or a polymer type DA is present.
    Type: Application
    Filed: December 19, 2006
    Publication date: November 27, 2008
    Applicant: EVONIK ROEHM GMBH
    Inventors: Gerd Loehden, Sven Balk, Marita Kaufmann, Axel Schroeder, Thorsten Brand, Gabriele Brenner
  • Publication number: 20080057205
    Abstract: The invention relates to a heat-sealing system consisting of an olefin polymer or olefin copolymer A, a methacrylate copolymer B, a graft polymer AB that is composed of the aforementioned components, a polyester C and an optional polymer D or an optional polymer blend DA, in addition to a solvent or solvent mixture L. The heat-sealing system is characterised by a high heat resistance, excellent barrier properties and short sealing times in relation to various plastics and aluminium foil or PET film.
    Type: Application
    Filed: June 6, 2006
    Publication date: March 6, 2008
    Applicant: Roehm GmbH
    Inventors: Gerd Lohden, Sven Balk, Manfred Braum, Jurgen Hartmann, Marita Kaufmann, Michael Wicke
  • Patent number: 5523354
    Abstract: Crosslinked polymers are prepared by reacting mutually reactive side groups, comprising reacting polymer chains containing carbonyl side groups, optionally protected, and 1,2- or 1,3-diol side groups, optionally protected, in the presence of an acid catalyst, thereby forming crosslinking bridges between polymer chains. Crosslinked polymers are also prepared in which polymer chains are bonded together by a low molecular weight crosslinking agent.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: June 4, 1996
    Assignee: Roehm GmbH Chemische Fabrik
    Inventors: Marita Kaufmann, Volker Kerscher, Werner Siol, Karl J. Folsch
  • Patent number: 5468800
    Abstract: Aqueous binders for liquid coating agents which contain a film-forming, aqueous plastic dispersion and a crosslinking component can be stored in ready-to-use form and quickly harden after being processed into a coating, at room temperature or a temperature just slightly above, forming a hard, dry, crosslinkable film. The plastic dispersion is an emulsion polymer with polymerized units of an ethylenically-unsaturated, radically polymerizable monomer with an alkylene urea side group. The crosslinking agent contains at least two, possibly protected, aldehyde groups.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: November 21, 1995
    Assignee: Roehm GmbH Chemische Fabrik
    Inventors: Karl J. Folsch, Marita Kaufmann, Jurgen Hartmann