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).
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Patent number: 11447579Abstract: 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: GrantFiled: August 1, 2018Date of Patent: September 20, 2022Assignee: Roehm GmbHInventors: Steffen Krill, Johannes Vorholz, Andreas Weber, Marita Kaufmann, Andrea Wittkowski
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Publication number: 20220281801Abstract: The present invention describes storage-stable glycerol (meth)acrylate carboxylic esters and a method for preparing these esters.Type: ApplicationFiled: May 22, 2022Publication date: September 8, 2022Applicant: Evonik Röhm GmbHInventors: Patrik Hartmann, Marita Kaufmann, Steffen Krill, Thorben Schütz, Marcel Treskow, Andrea Wittkowski
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Patent number: 11414373Abstract: The present invention describes storage-stable glycerol (meth)acrylate carboxylic esters and a method for preparing these esters.Type: GrantFiled: November 14, 2017Date of Patent: August 16, 2022Assignee: Evonik Operations GmbHInventors: Patrik Hartmann, Marita Kaufmann, Steffen Krill, Thorben Schütz, Marcel Treskow, Andrea Wittkowski
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Publication number: 20210115166Abstract: 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: ApplicationFiled: August 1, 2018Publication date: April 22, 2021Applicant: Roehm GmbHInventors: Steffen KRILL, Johannes VORHOLZ, Andreas WEBER, Marita KAUFMANN, Andrea WITTKOWSKI
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Publication number: 20190352251Abstract: The present invention describes storage-stable glycerol (meth)acrylate carboxylic esters and a method for preparing these esters.Type: ApplicationFiled: November 14, 2017Publication date: November 21, 2019Applicant: Evonik Röhm GmbHInventors: Patrik HARTMANN, Marita KAUFMANN, Steffen KRILL, Thorben SCHÜTZ, Marcel TRESKOW, Andrea WITTKOWSKI
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Patent number: 9701846Abstract: 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: GrantFiled: November 6, 2013Date of Patent: July 11, 2017Assignee: EVONIK ROEHM GmbHInventors: Guido Protzmann, Joern Kiwitt, Dominik Kiefer, Guenter Schmitt, Marita Kaufmann, Michael Olapoju
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Publication number: 20160017151Abstract: 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: ApplicationFiled: March 13, 2014Publication date: January 21, 2016Applicant: EVONIK ROEHM GMBHInventors: Guido PROTZMANN, Jörn KIWITT, Dominik KIEFER, Günter SCHMITT, Marita KAUFMANN, Michael OLAPOJU
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Publication number: 20150247297Abstract: 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: ApplicationFiled: November 6, 2013Publication date: September 3, 2015Applicant: EVONIK INDUSTRIES AGInventors: Guido Protzmann, Joern Kiwitt, Dominik Kiefer, Guenter Schmitt, Marita Kaufmann, Michael Olapoju
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Patent number: 8936853Abstract: The invention relates to plastisols which even without the addition of adhesion promoters exhibit high adhesion to metallic and cathodically deposition-coated substrates.Type: GrantFiled: August 12, 2008Date of Patent: January 20, 2015Assignee: Kaneka Belgium N.V.Inventors: Jan Hendrik Schattka, Gerd Loehden, Marita Kaufmann, Winfried Belzner, Michael Wolff, Rainer Lomoelder, Dirk Hoppe, Christoph Nacke
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Patent number: 8084136Abstract: 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: GrantFiled: December 19, 2006Date of Patent: December 27, 2011Assignee: Evonik Röhm GmbHInventors: Gerd Loehden, Sven Balk, Marita Kaufmann, Axel Schroeder, Thorsten Brand, Gabriele Brenner
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Patent number: 8025758Abstract: 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: GrantFiled: June 6, 2006Date of Patent: September 27, 2011Assignee: Evonik Rohm GmbHInventors: Gerd Loehden, Sven Balk, Manfred Braum, Juergen Hartmann, Marita Kaufmann, Michael Wicke
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Publication number: 20110111238Abstract: The invention relates to plastisols which even without the addition of adhesion promoters exhibit high adhesion to metallic and cathodically deposition-coated substrates.Type: ApplicationFiled: August 12, 2008Publication date: May 12, 2011Applicant: Evonik Roehm GmbHInventors: Jan Hendrik Schattka, Gerd Loehden, Marita Kaufmann, Winfried Belzner, Michael Wolff, Rainer Lomoelder, Dirk Hoppe, Christoph Nacke
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Publication number: 20080292893Abstract: 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: ApplicationFiled: December 19, 2006Publication date: November 27, 2008Applicant: EVONIK ROEHM GMBHInventors: Gerd Loehden, Sven Balk, Marita Kaufmann, Axel Schroeder, Thorsten Brand, Gabriele Brenner
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Publication number: 20080057205Abstract: 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: ApplicationFiled: June 6, 2006Publication date: March 6, 2008Applicant: Roehm GmbHInventors: Gerd Lohden, Sven Balk, Manfred Braum, Jurgen Hartmann, Marita Kaufmann, Michael Wicke
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Patent number: 5523354Abstract: 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: GrantFiled: July 20, 1994Date of Patent: June 4, 1996Assignee: Roehm GmbH Chemische FabrikInventors: Marita Kaufmann, Volker Kerscher, Werner Siol, Karl J. Folsch
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Patent number: 5468800Abstract: 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: GrantFiled: February 3, 1994Date of Patent: November 21, 1995Assignee: Roehm GmbH Chemische FabrikInventors: Karl J. Folsch, Marita Kaufmann, Jurgen Hartmann