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).
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Patent number: 8772408Abstract: 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: GrantFiled: August 17, 2012Date of Patent: July 8, 2014Assignee: Bayer Intellectual Property GmbHInventors: Michael Mager, Markus Mechtel, Nusret Yuva, Alice Münzmay
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Publication number: 20120316281Abstract: 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: ApplicationFiled: August 17, 2012Publication date: December 13, 2012Applicant: Bayer MaterialScience AGInventors: Thomas Münzmay, Alice Münzmay, Michael Mager, Markus Mechtel, Nusret Yuva
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Patent number: 8299168Abstract: 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: GrantFiled: December 18, 2008Date of Patent: October 30, 2012Assignee: Bayer MaterialScience AGInventors: Thomas Münzmay, Alice Münzmay, legal representative, Arno Nennemann, Markus Mechtel, Nusret Yuva, Meike Niesten
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Patent number: 8278399Abstract: 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: GrantFiled: November 10, 2008Date of Patent: October 2, 2012Assignee: Bayer MaterialScience AGInventors: Arno Nennemann, Markus Mechtel, Thomas Klimmasch, Meike Niesten
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Patent number: 8088880Abstract: 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: GrantFiled: November 15, 2007Date of Patent: January 3, 2012Assignee: Bayer MaterialScience AGInventors: Arno Nennemann, Michael Mager, Markus Mechtel, Thomas Klimmasch, Christoph Gurtler, Christian Wamprecht
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Patent number: 7939598Abstract: 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: GrantFiled: December 9, 2008Date of Patent: May 10, 2011Assignee: Bayer MaterialScience AGInventors: Hans-Josef Laas, Reinhard Halpaap, Dieter Mager, Markus Mechtel, Michael Ehlers, Reinhard Hertrampf
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Publication number: 20110082273Abstract: 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: ApplicationFiled: September 30, 2010Publication date: April 7, 2011Applicant: Bayer MaterialScience AGInventors: Hans-Josef Laas, Thomas Baker, Markus Mechtel
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Patent number: 7728076Abstract: 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: GrantFiled: November 13, 2007Date of Patent: June 1, 2010Assignee: Bayer MaterialScience AGInventors: Christian Wamprecht, Markus Mechtel, Thomas Klimmasch
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Patent number: 7641975Abstract: 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: GrantFiled: December 3, 2004Date of Patent: January 5, 2010Assignee: Bayer MaterialScience AGInventors: Wolfgang Fischer, Markus Mechtel, Jan Weikard
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Publication number: 20090247711Abstract: 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: ApplicationFiled: June 11, 2009Publication date: October 1, 2009Applicant: Bayer MaterialScience AGInventors: Christian Wamprecht, Markus Mechtel, Thomas Klimmasch
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Publication number: 20090163648Abstract: 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: ApplicationFiled: December 18, 2008Publication date: June 25, 2009Applicant: Bayer MaterialScience AGInventors: Thomas Muenzmay, Alice Muenzmay, Arno Nennemann, Markus Mechtel, Nusret Yuva, Meike Niesten
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Publication number: 20090163618Abstract: 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: ApplicationFiled: December 18, 2008Publication date: June 25, 2009Applicant: Bayer MaterialScience AGInventors: Thomas Muenzmay, Alice Muenzmay, Michael Mager, Markus Mechtel, Nusret Yuva
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Patent number: 7550527Abstract: 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: GrantFiled: March 6, 2006Date of Patent: June 23, 2009Assignee: Bayer MaterialScience AGInventors: Steffen Hofacker, Markus Mechtel, Thomas Münzmay, Nusret Yuva, Rolf Gertzmann
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Publication number: 20090156738Abstract: 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: ApplicationFiled: December 9, 2008Publication date: June 18, 2009Inventors: Hans-Josef Laas, Reinhard Halpaap, Dieter Mager, Markus Mechtel, Michael Ehlers, Reinhard Hertrampf
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Publication number: 20090124727Abstract: 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: ApplicationFiled: November 10, 2008Publication date: May 14, 2009Applicant: Bayer MaterialScience AGInventors: Arno Nennemann, Markus Mechtel, Thomas Klimmasch, Christopher Guertler, Michael Mager, Meike Niesten, Robert Maleika
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Publication number: 20090124766Abstract: 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: ApplicationFiled: November 10, 2008Publication date: May 14, 2009Applicant: Bayer MaterialScience AGInventors: Arno Nennemann, Markus Mechtel, Thomas Klimmasch, Meike Niesten
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Publication number: 20090008613Abstract: 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: ApplicationFiled: May 7, 2008Publication date: January 8, 2009Applicant: Bayer MaterialScience AGInventors: Arno Nennemann, Steffen Hofacker, Markus Mechtel, Thomas Klimmasch, Christopher Guertler
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Publication number: 20080281025Abstract: The present invention relates to hybrid organic-inorganic polyisocyanates for the preparation of organic-inorganic coating compositions and adhesives.Type: ApplicationFiled: May 7, 2008Publication date: November 13, 2008Applicant: Bayer MaterialScience AGInventors: Arno Nennemann, Steffen Hofacker, Markus Mechtel, Thomas Klimmasch
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Publication number: 20080146767Abstract: 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: ApplicationFiled: November 13, 2007Publication date: June 19, 2008Inventors: Christian Wamprecht, Markus Mechtel, Thomas Klimmasch
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Publication number: 20080119601Abstract: 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: ApplicationFiled: November 15, 2007Publication date: May 22, 2008Inventors: Arno Nennemann, Michael Mager, Markus Mechtel, Thomas Klimmasch, Christoph Gurtler, Christian Wamprecht