Patents by Inventor Markus Mechtel

Markus Mechtel 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: 8772408
    Abstract: The present invention relates to aqueous binder dispersions based on silane-modified polymeric binders and inorganic nanoparticles, a process for the preparation thereof and the use thereof for the production of high quality coatings, in particular clear lacquers.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: July 8, 2014
    Assignee: Bayer Intellectual Property GmbH
    Inventors: Michael Mager, Markus Mechtel, Nusret Yuva, Alice Münzmay
  • Publication number: 20120316281
    Abstract: The present invention relates to aqueous binder dispersions based on silane-modified polymeric binders and inorganic nanoparticles, a process for the preparation thereof and the use thereof for the production of high quality coatings, in particular clear lacquers.
    Type: Application
    Filed: August 17, 2012
    Publication date: December 13, 2012
    Applicant: Bayer MaterialScience AG
    Inventors: Thomas Münzmay, Alice Münzmay, Michael Mager, Markus Mechtel, Nusret Yuva
  • Patent number: 8299168
    Abstract: The invention relates to aqueous formulations comprising organic binders having a siloxane content and inorganic nanoparticles, a process for the preparation thereof and the use thereof for the preparation of aqueous coating compositions.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: October 30, 2012
    Assignee: Bayer MaterialScience AG
    Inventors: Thomas Münzmay, Alice Münzmay, legal representative, Arno Nennemann, Markus Mechtel, Nusret Yuva, Meike Niesten
  • Patent number: 8278399
    Abstract: Processes for preparing siloxane-modified polyisocyanates, the processes comprising: providing a polyisocyanate reactant; and reacting the polyisocyanate reactant with a hydroxyl-containing siloxane having a number-average molecular weight of 200 to 3000 g/mol and an average OH functionality of greater than or equal to 1.8, and corresponding to the general formula (I): wherein X represents an aliphatic, unbranched or branched C1 to C20 radical optionally containing ether groups; R represents a hydroxyl-functional radical; R1 represents a hydrogen or an optionally heteroatom-containing C1 to C20 hydrocarbon radical; and n is 1 to 40; siloxane-modified polyisocyanates prepared thereby, and uses therefor.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: October 2, 2012
    Assignee: Bayer MaterialScience AG
    Inventors: Arno Nennemann, Markus Mechtel, Thomas Klimmasch, Meike Niesten
  • Patent number: 8088880
    Abstract: The present invention relates to innovative, nanoparticle-modified polyisocyanates, a process for their preparation and to their use in coating compositions and adhesives. The process comprises the steps of 1) reacting A) polyisocyanates with B) alkoxysilanes, and subsequently 2) incorporating by dispersion inorganic particles, optionally surface modified, having an average particle size of less than 200 nm as determined by means of dynamic light scattering in dispersion, where the alkoxysilanes are according to formula (I) Q-Z—SiXaY3-a??(I) in which Q is an isocyanate-reactive group, X is a hydrolysable group, Y is identical or different alkyl groups, Z is a C1-C12 alkylene group and a is an integer from 1 to 3.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: January 3, 2012
    Assignee: Bayer MaterialScience AG
    Inventors: Arno Nennemann, Michael Mager, Markus Mechtel, Thomas Klimmasch, Christoph Gurtler, Christian Wamprecht
  • Patent number: 7939598
    Abstract: The present invention relates to innovative polyisocyanate mixtures comprising cycloaliphatic structural elements and containing exclusively linear-aliphatically attached free isocyanate groups, to a process for preparing them and to their use as a starting component in the production of polyurethane plastics, more particularly as a crosslinker component in polyurethane coating materials and coatings.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: May 10, 2011
    Assignee: Bayer MaterialScience AG
    Inventors: Hans-Josef Laas, Reinhard Halpaap, Dieter Mager, Markus Mechtel, Michael Ehlers, Reinhard Hertrampf
  • Publication number: 20110082273
    Abstract: The invention relates to high-functional polyisocyanates containing allophanate and silane groups, a method for their production and their use as a starting component in the production of polyurethane plastics, in particular as a crosslinker component in polyurethane paints and coatings.
    Type: Application
    Filed: September 30, 2010
    Publication date: April 7, 2011
    Applicant: Bayer MaterialScience AG
    Inventors: Hans-Josef Laas, Thomas Baker, Markus Mechtel
  • Patent number: 7728076
    Abstract: The present invention relates to novel coating compositions comprising polyisocyanates, aliphatic oligocarbonate polyols, oligoester polyols and polyacrylate polyols, to a process for their production and to their use in the production of coatings.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: June 1, 2010
    Assignee: Bayer MaterialScience AG
    Inventors: Christian Wamprecht, Markus Mechtel, Thomas Klimmasch
  • Patent number: 7641975
    Abstract: A process for the preparation of dual-cure hardeners, coating systems which contain these hardeners, and the use of these coating systems, as well as substrates coated with these coating agents. The dual-cure hardeners are prepared by reacting at least one diisocyanate or polyisocyanate A with the product B of the reaction of B1 acrylic acid, methacrylic acid and/or dimeric acrylic acid with B2 glycidyl methacrylate and/or glycidyl acrylate, wherein B contains less than 0.2 wt. % of epoxide groups.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: January 5, 2010
    Assignee: Bayer MaterialScience AG
    Inventors: Wolfgang Fischer, Markus Mechtel, Jan Weikard
  • Publication number: 20090247711
    Abstract: The present invention relates to novel compositions of oligocarbonate polyols and oligoester polyols and their use in coating compositions for the production of coatings, particularly scratch-resistant topcoats.
    Type: Application
    Filed: June 11, 2009
    Publication date: October 1, 2009
    Applicant: Bayer MaterialScience AG
    Inventors: Christian Wamprecht, Markus Mechtel, Thomas Klimmasch
  • Publication number: 20090163648
    Abstract: The invention relates to aqueous formulations comprising organic binders having a siloxane content and inorganic nanoparticles, a process for the preparation thereof and the use thereof for the preparation of aqueous coating compositions.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 25, 2009
    Applicant: Bayer MaterialScience AG
    Inventors: Thomas Muenzmay, Alice Muenzmay, Arno Nennemann, Markus Mechtel, Nusret Yuva, Meike Niesten
  • Publication number: 20090163618
    Abstract: The present invention relates to aqueous binder dispersions based on silane-modified polymeric binders and inorganic nanoparticles, a process for the preparation thereof and the use thereof for the production of high quality coatings, in particular clear lacquers.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 25, 2009
    Applicant: Bayer MaterialScience AG
    Inventors: Thomas Muenzmay, Alice Muenzmay, Michael Mager, Markus Mechtel, Nusret Yuva
  • Patent number: 7550527
    Abstract: The present invention relates to aqueous copolymer dispersions containing A) one or more hydroxy-functional copolymers synthesized from a) one or more OH-free (meth)acrylic esters and/or vinylaromatics, b) one or more hydroxy-functional (meth)acrylic esters, c) one or more ionic and/or potential ionic monomers capable of free-radical copolymerization, and d) one or more optionally monomers other than components a) to c) that are capable of free-radical copolymerization, and B) one or more hydroxy-functional polycarbonate polyols as reactive diluent. The present invention also relates to a process for preparing these aqueous copolymer dispersions and to their use in coating compositions.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: June 23, 2009
    Assignee: Bayer MaterialScience AG
    Inventors: Steffen Hofacker, Markus Mechtel, Thomas Münzmay, Nusret Yuva, Rolf Gertzmann
  • Publication number: 20090156738
    Abstract: The present invention relates to innovative polyisocyanate mixtures comprising cycloaliphatic structural elements and containing exclusively linear-aliphatically attached free isocyanate groups, to a process for preparing them and to their use as a starting component in the production of polyurethane plastics, more particularly as a crosslinker component in polyurethane coating materials and coatings.
    Type: Application
    Filed: December 9, 2008
    Publication date: June 18, 2009
    Inventors: Hans-Josef Laas, Reinhard Halpaap, Dieter Mager, Markus Mechtel, Michael Ehlers, Reinhard Hertrampf
  • Publication number: 20090124727
    Abstract: The present invention relates to nanoparticle-modified polyisocyanates which have been modified by a special siloxane unit and consequently have improved performance properties and also storage stabilities.
    Type: Application
    Filed: November 10, 2008
    Publication date: May 14, 2009
    Applicant: Bayer MaterialScience AG
    Inventors: Arno Nennemann, Markus Mechtel, Thomas Klimmasch, Christopher Guertler, Michael Mager, Meike Niesten, Robert Maleika
  • Publication number: 20090124766
    Abstract: Processes for preparing siloxane-modified polyisocyanates, the processes comprising: providing a polyisocyanate reactant; and reacting the polyisocyanate reactant with a hydroxyl-containing siloxane having a number-average molecular weight of 200 to 3000 g/mol and an average OH functionality of greater than or equal to 1.8, and corresponding to the general formula (I): wherein X represents an aliphatic, unbranched or branched C1 to C20 radical optionally containing ether groups; R represents a hydroxyl-functional radical; R1 represents a hydrogen or an optionally heteroatom-containing C1 to C20 hydrocarbon radical; and n is 1 to 40; siloxane-modified polyisocyanates prepared thereby, and uses therefor.
    Type: Application
    Filed: November 10, 2008
    Publication date: May 14, 2009
    Applicant: Bayer MaterialScience AG
    Inventors: Arno Nennemann, Markus Mechtel, Thomas Klimmasch, Meike Niesten
  • Publication number: 20090008613
    Abstract: The present invention relates to hybrid organic-inorganic polyisocyanates based on polyfunctional organosilanes, metal alkoxides and alkoxysilane-containing blocked polyisocyanates for the preparation of organic-inorganic coating compositions and adhesives.
    Type: Application
    Filed: May 7, 2008
    Publication date: January 8, 2009
    Applicant: Bayer MaterialScience AG
    Inventors: Arno Nennemann, Steffen Hofacker, Markus Mechtel, Thomas Klimmasch, Christopher Guertler
  • Publication number: 20080281025
    Abstract: The present invention relates to hybrid organic-inorganic polyisocyanates for the preparation of organic-inorganic coating compositions and adhesives.
    Type: Application
    Filed: May 7, 2008
    Publication date: November 13, 2008
    Applicant: Bayer MaterialScience AG
    Inventors: Arno Nennemann, Steffen Hofacker, Markus Mechtel, Thomas Klimmasch
  • Publication number: 20080146767
    Abstract: The present invention relates to novel coating compositions comprising polyisocyanates, aliphatic oligocarbonate polyols, oligoester polyols and polyacrylate polyols, to a process for their production and to their use in the production of coatings.
    Type: Application
    Filed: November 13, 2007
    Publication date: June 19, 2008
    Inventors: Christian Wamprecht, Markus Mechtel, Thomas Klimmasch
  • Publication number: 20080119601
    Abstract: The present invention relates to innovative, nanoparticle-modified polyisocyanates, a process for their preparation and to their use in coating compositions and adhesives. The process comprises the steps of 1) reacting A) polyisocyanates with B) alkoxysilanes, and subsequently 2) incorporating by dispersion inorganic particles, optionally surface modified, having an average particle size of less than 200 nm as determined by means of dynamic light scattering in dispersion, where the alkoxysilanes are according to formula (I) Q-Z-SiXaY3-a??(I) in which Q is an isocyanate-reactive group, X is a hydrolysable group, Y is identical or different alkyl groups, Z is a C1-C12 alkylene group and a is an integer from 1 to 3.
    Type: Application
    Filed: November 15, 2007
    Publication date: May 22, 2008
    Inventors: Arno Nennemann, Michael Mager, Markus Mechtel, Thomas Klimmasch, Christoph Gurtler, Christian Wamprecht