Patents by Inventor Martin Risthaus
Martin Risthaus 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: 11078390Abstract: The invention provides an adhesion promoter composition comprising at least one polymer A selected from at least one epoxy resin-phenol resin precondensate, a mixture of at least one epoxy resin-phenol resin precondensate and epoxy resins, a mixture of epoxy resins and phenol resins, polyamide resins and mixtures thereof, and at least one copolyamide-based hotmelt adhesive. Additionally described is a primer composition comprising at least one polymer B selected from saturated polyester resins, epoxy-phenol resin precondensates, mixtures of epoxy resins and phenol resins, and mixtures thereof, at least one crosslinker resin selected from the group consisting of melamine resins, blocked isocyanate resins and mixtures thereof, at least one catalyst, and at least one copolyamide-based hotmelt adhesive.Type: GrantFiled: February 22, 2019Date of Patent: August 3, 2021Assignees: Evonik Operations GmbH, SI-Coatings GmbHInventors: Willi Henkenjohann, Karl Kuhmann, Maximilian Gruhn, Andreas Pawlik, Martin Risthaus, Klaus Welsch, Sven Mang
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Patent number: 10603872Abstract: The invention provides a process for producing a hybrid component comprising metal and plastic. The process comprises the steps of a) pretreating the metal surface by applying at least one conversion layer, b) applying at least one layer of an adhesion promoter composition and c) bonding the metal to the plastic. The adhesion promoter composition comprises at least one copolyamide-based hotmelt adhesive.Type: GrantFiled: January 29, 2014Date of Patent: March 31, 2020Assignee: Evonik Operations GmbHInventors: Maximilian Gruhn, Karl Kuhmann, Martin Risthaus
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Publication number: 20190185724Abstract: The invention provides an adhesion promoter composition comprising at least one polymer A selected from at least one epoxy resin-phenol resin precondensate, a mixture of at least one epoxy resin-phenol resin precondensate and epoxy resins, a mixture of epoxy resins and phenol resins, polyamide resins and mixtures thereof, and at least one copolyamide-based hotmelt adhesive. Additionally described is a primer composition comprising at least one polymer B selected from saturated polyester resins, epoxy-phenol resin precondensates, mixtures of epoxy resins and phenol resins, and mixtures thereof, at least one crosslinker resin selected from the group consisting of melamine resins, blocked isocyanate resins and mixtures thereof, at least one catalyst, and at least one copolyamide-based hotmelt adhesive.Type: ApplicationFiled: February 22, 2019Publication date: June 20, 2019Applicants: Evonik Degussa GmbH, SI-Coatings GmbHInventors: Willi Henkenjohann, Karl Kuhmann, Maximilian Gruhn, Andreas Pawlik, Martin Risthaus, Klaus Welsch, Sven Mang
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Patent number: 10273390Abstract: The invention provides an adhesion promoter composition comprising at least one polymer A selected from at least one epoxy resin-phenol resin precondensate, a mixture of at least one epoxy resin-phenol resin precondensate and epoxy resins, a mixture of epoxy resins and phenol resins, polyamide resins and mixtures thereof, and at least one copolyamide-based hotmelt adhesive. Additionally described is a primer composition comprising at least one polymer B selected from saturated polyester resins, epoxy-phenol resin precondensates, mixtures of epoxy resins and phenol resins, and mixtures thereof, at least one crosslinker resin selected from the group consisting of melamine resins, blocked isocyanate resins and mixtures thereof, at least one catalyst, and at least one copolyamide-based hotmelt adhesive.Type: GrantFiled: January 29, 2014Date of Patent: April 30, 2019Assignees: Evonik Degussa GmbH, SI-Coatings GmbHInventors: Willi Henkenjohann, Karl Kuhmann, Maximilian Gruhn, Andreas Pawlik, Martin Risthaus, Klaus Welsch, Sven Mang
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Patent number: 10246575Abstract: The invention relates to a polymer composition, and to a semifinished plastics product, the surface of which has been formed at least to some extent from the polymer composition. The invention further relates to a production process associated therewith for the semifinished plastics product. A feature of the polymer composition is that it comprises from 50 to 99.7% by weight of a polymer and from 0.3 to 20% by weight of one or more adhesion-promoting additives. The invention further relates to plastics-metal hybrid components and production of these.Type: GrantFiled: March 31, 2015Date of Patent: April 2, 2019Assignee: Evonik Degussa GmbHInventors: Karl Kuhmann, Maximilian Gruhn, Olivier Farges, Martin Risthaus, Kathrin Lehmann
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Publication number: 20170121503Abstract: The invention relates to a polymer composition, and to a semifinished plastics product, the surface of which has been formed at least to some extent from the polymer composition. The invention further relates to a production process associated therewith for the semifinished plastics product. A feature of the polymer composition is that it comprises from 50 to 99.7% by weight of a polymer and from 0.3 to 20% by weight of one or more adhesion-promoting additives. The invention further relates to plastics-metal hybrid components and production of these.Type: ApplicationFiled: March 31, 2015Publication date: May 4, 2017Applicant: Evonik Degussa GmbHInventors: Karl KUHMANN, Maximilian GRUHN, Olivier FARGES, Martin RISTHAUS, Kathrin LEHMANN
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Patent number: 9574700Abstract: A pipeline laid trenchlessly and/or without a sand bed is produced using a metallic conduit which is encased with an extruded layer of a polyamide molding material. In this way, the durability of the outer shell required for trenchless laying techniques without a sand bed is ensured.Type: GrantFiled: August 27, 2008Date of Patent: February 21, 2017Assignees: Evonik Degussa GmbH, Salzgitter Mannesmann Line Pipe GmbHInventors: Andreas Dowe, Rainer Goering, Martin Risthaus, Klaus Gahlmann, Reinhard Buessing, Hans-Juergen Kocks, Joern Winkels
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Publication number: 20150375478Abstract: The invention relates to hybrid components comprising at least one fibre composite material as material B and at least one material A. Material A is selected from plastics, metals, ceramic compositions, wood, glass, composite materials, textile fibres and from prefabricated products produced from textile fibres. Material A is bonded to material B by at least one coating of an adhesion promoter composition comprising at least one copolyamide-based hotmelt adhesive.Type: ApplicationFiled: January 29, 2014Publication date: December 31, 2015Applicant: EVONIK DEGUSSA GMBHInventors: Maximilian GRUHN, Karl KUHMANN, Martin RISTHAUS
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Publication number: 20150361304Abstract: The invention provides a process for producing a hybrid component comprising metal and plastic. The process comprises the steps of a) pretreating the metal surface by applying at least one conversion layer, b) applying at least one layer of an adhesion promoter composition and c) bonding the metal to the plastic. The adhesion promoter composition comprises at least one copolyamide-based hotmelt adhesive.Type: ApplicationFiled: January 29, 2014Publication date: December 17, 2015Applicant: EVONIK DEGUSSA GMBHInventors: Maximilian GRUHN, Karl KUHMANN, Martin RISTHAUS
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Publication number: 20150361316Abstract: The invention provides an adhesion promoter composition comprising at least one polymer A selected from at least one epoxy resin-phenol resin precondensate, a mixture of at least one epoxy resin-phenol resin precondensate and epoxy resins, a mixture of epoxy resins and phenol resins, polyamide resins and mixtures thereof, and at least one copolyamide-based hotmelt adhesive. Additionally described is a primer composition comprising at least one polymer B selected from saturated polyester resins, epoxy-phenol resin precondensates, mixtures of epoxy resins and phenol resins, and mixtures thereof, at least one crosslinker resin selected from the group consisting of melamine resins, blocked isocyanate resins and mixtures thereof, at least one catalyst, and at least one copolyamide-based hotmelt adhesive.Type: ApplicationFiled: January 29, 2014Publication date: December 17, 2015Applicants: Evonik Degussa GmbH, SI-Coating GmbHInventors: Willi HENKENJOHANN, Karl KUHMANN, Maximilian GRUHN, Andreas PAWLIK, Martin RISTHAUS, Klaus WELSCH, Sven MANG
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Patent number: 9205630Abstract: A description is given of the use of reactive hotmelt adhesives based on copolyamide and further comprising isocyanate and epoxide and also a functionalized polyolefin in hybrid components. These hybrid components find applications in vehicle construction and in aircraft construction, for example.Type: GrantFiled: March 31, 2010Date of Patent: December 8, 2015Assignee: Evonik Degussa GmbHInventors: Andreas Pawlik, Martin Risthaus, Jochen Fritz
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Publication number: 20150282566Abstract: The invention relates to studded shoes which comprise metal studs and a plastics sole. Studs and sole are connected to one another by a coating of an adhesion promoter composition, wherein the composition comprises at least one copolyamide-based hot-melt adhesive. The studded shoe can be used in the sports sector or hiking sector.Type: ApplicationFiled: July 10, 2014Publication date: October 8, 2015Applicant: EVONIK INDUSTRIES AGInventors: Maximilian Gruhn, Klaus Huelsmann, Karl Kuhmann, Michael Beyer, Martin Risthaus, Jun Shi
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Patent number: 8449641Abstract: A process for producing a regenerable ceramic particulate filter for diesel vehicles is described, wherein a material comprising silicon-containing particles is pyrolyzed in the presence of a polyamide. The resulting particulate filters have a BET surface area of >350 m2/l.Type: GrantFiled: April 13, 2009Date of Patent: May 28, 2013Assignee: Evonik Degussa GmbHInventors: Martin Risthaus, Hans-Joachim Wönicker
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Patent number: 8153269Abstract: Reactive hotmelt adhesives based on copolyamide can be used in hybrid components. These hybrid components find application in, for example, vehicle construction and aircraft construction.Type: GrantFiled: February 28, 2011Date of Patent: April 10, 2012Assignee: Evonik Degussa GmbHInventors: Martin Risthaus, Hans-Joachim Woenicker
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Publication number: 20120070670Abstract: A description is given of the use of reactive hotmelt adhesives based on copolyamide and further comprising isocyanate and epoxide and also a functionalized polyolefin in hybrid components. These hybrid components find applications in vehicle construction and in aircraft construction, for example.Type: ApplicationFiled: March 31, 2010Publication date: March 22, 2012Applicant: EVONIK DEGUSSA GmbHInventors: Andreas Pawlik, Martin Risthaus, Jochen Fritz
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Publication number: 20110143142Abstract: Reactive hotmelt adhesives based on copolyamide can be used in hybrid components. These hybrid components find application in, for example, vehicle construction and aircraft construction.Type: ApplicationFiled: February 28, 2011Publication date: June 16, 2011Applicant: EVONIK DEGUSSA GmbHInventors: Martin Risthaus, Hans-Joachim Wönicker
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Patent number: 7951260Abstract: Reactive hotmelt adhesives based on copolyamide can be used in hybrid components. These hybrid components find application in, for example, vehicle construction and aircraft construction.Type: GrantFiled: January 17, 2007Date of Patent: May 31, 2011Assignee: Evonik Degussa GmbHInventors: Martin Risthaus, Hans-Joachim Wönicker
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Publication number: 20100300572Abstract: A pipeline laid trenchlessly and/or without a sand bed is produced using a metallic conduit which is encased with an extruded layer of a polyamide moulding material. In this way, the durability of the outer shell required for trenchless laying techniques without a sand bed is ensured.Type: ApplicationFiled: August 27, 2008Publication date: December 2, 2010Applicants: Evonik Degussa GMBH, Salzgitter Mannesmann Line Pipe GMBHInventors: Andreas Dowe, Rainer Goering, Martin Risthaus, Klaus Gahlmann, Reinhard Buessing, Hans-Juergen Kocks, Joern Winkels
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Publication number: 20090255402Abstract: A process for producing a regenerable ceramic particulate filter for diesel vehicles is described, wherein a material comprising silicon-containing particles is pyrolyzed in the presence of a polyamide. The resulting particulate filters have a BET surface area of >350 m2/l.Type: ApplicationFiled: April 13, 2009Publication date: October 15, 2009Applicant: EVONIK DEGUSSA GmbHInventors: Martin Risthaus, Hans-Joachim Woenicker
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Publication number: 20070163709Abstract: Reactive hotmelt adhesives based on copolyamide can be used in hybrid components. These hybrid components find application in, for example, vehicle construction and aircraft construction.Type: ApplicationFiled: January 17, 2007Publication date: July 19, 2007Applicant: DEGUSSA AGInventors: Martin RISTHAUS, Hans-Joachim Wonicker