Patents by Inventor Sophie Cornen
Sophie Cornen 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: 11230768Abstract: A multi-step method for anti-corrosion pretreatment of components made from metallic materials, in which a wet chemical treatment with an aqueous composition (A) containing a dissolved and/or dispersed polymer P, which is substituted with heterocycles containing at least one quaternary nitrogen heteroatom, is followed by a conversion treatment based on water-soluble compounds of the elements Zr, Ti, and/or Si before further anti-corrosion coatings are optionally applied.Type: GrantFiled: October 13, 2017Date of Patent: January 25, 2022Assignee: Henkel AG & Co. KGaAInventors: Sophie Cornen, Kristof Wapner, Ralf Posner, Natascha Henze, Kirsten Agnes Lill, Michiel Gerard Maas
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Publication number: 20180066365Abstract: A multi-step process for the anti-corrosive pretreatment of components component formed at least partially from metallic materials wherein first components are subjected to a conditioning wet-chemical treatment with an aqueous composition (A) that contains a salt of a quaternary amine and then to an additional wet-chemical treatment based on water-soluble compounds of the elements Zr, Ti and/or Si, in the course of which treatment a corresponding conversion of the surfaces of the metallic materials takes place, said treatment providing an anti-corrosive primer for additionally applied organic coatings.Type: ApplicationFiled: November 1, 2017Publication date: March 8, 2018Inventors: Kevin D. Murnaghan, Michiel Gerard Maas, Sophie Cornen, Isabel Kinscheck
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Publication number: 20180051377Abstract: A multi-step method for anti-corrosion pretreatment of components made from metallic materials, in which a wet chemical treatment with an aqueous composition (A) containing a dissolved and/or dispersed polymer P, which is substituted with heterocycles containing at least one quaternary nitrogen heteroatom, is followed by a conversion treatment based on water-soluble compounds of the elements Zr, Ti, and/or Si before further anti-corrosion coatings are optionally applied.Type: ApplicationFiled: October 13, 2017Publication date: February 22, 2018Inventors: Sophie Cornen, Kristof Wapner, Ralf Posner, Natascha Henze, Kirsten Agnes Lill, Michiel Gerard Maas
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Publication number: 20160201199Abstract: A process for anticorrosion treatment of bare metal surfaces comprising steel surfaces, comprising contacting the bare metal surfaces with an acidic aqueous solution of a fluoro complex of at least one element M selected from the group B, Si, Ti, Zr and Hf, at least one further component selected from among: a buffer system for the pH range from 2.5 to 5.5, nitrate ions, copper ions, silver ions, vanadium or vanadate ions, bismuth ions, magnesium ions, zinc ions, manganese ions, cobalt ions, nickel ions, tin ions, aromatic carboxylic acids with at least two groups containing donor atoms, or derivatives of such carboxylic acids, and silica particles with an average particle size of below 1 ?m; and contains no more than 1 mg/l of an organic polymer with allylamine or vinylamine monomers; then rinsing the metal surfaces with water and thereafter coating them with a cathodically depositable electro-dipcoating.Type: ApplicationFiled: January 5, 2016Publication date: July 14, 2016Inventors: Stefan Frey, Jens Krömer, Silvia Hohagen, Sophie Cornen, Patrick Droniou, Peter Kuhm, Franz-Adolf Czika
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Patent number: 9163315Abstract: A high etch cleaner for aluminum and aluminum alloy substrates that leads to enhanced corrosion protective performance of a variety of anti-corrosion pretreatments. The cleaner comprises low levels of silicate of from 0 to 250 ppm, 50 to 500 ppm of at least one chelator, and has a pH of from 11.0 to 13.5. The cleaner may be used to etch from 0.5 to 4.0 grams per meter squared from substrates. Substrates treated with the cleaner and then coated with a variety of anti-corrosion pretreatments and outer coatings show enhanced corrosion resistance compared to substrates cleaned with standard cleaners that have low etch rates, high silicate levels and no chelating agents followed by anti-corrosion pretreatments and outer coatings.Type: GrantFiled: June 25, 2012Date of Patent: October 20, 2015Assignee: Henkel AG & Co. KGaAInventors: Edis Kapic, Michael L. Sienkowski, Bruce H. Goodreau, Sophie Cornen
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Patent number: 8815021Abstract: The present invention relates to a chromium-free aqueous agent based on water-soluble compounds of titanium and/or zirconium and a source of fluoride ions, copper ions and metal ions selected from the group consisting of calcium, magnesium, aluminum, boron, zinc, iron, manganese and/or tungstene and to a method for the anti-corrosive conversion treatment of metal surfaces. The chromium-free aqueous agent is suitable for the treatment of various metal materials, joined in composite structures, amongst others of steel or galvanized steel or the alloys thereof or any combinations of said materials. Furthermore, surfaces of aluminum and alloys thereof can be treated in an anti-corrosive manner using the agent according to the invention. The anti-corrosive treatment is intended in particular as a pretreatment for a subsequent dip-coating.Type: GrantFiled: September 17, 2010Date of Patent: August 26, 2014Assignee: Henkel AG & Co. KGaAInventors: Jan-Willem Brouwer, Jens Kroemer, Sophie Cornen, Michael Frank, Nicole Teubert, Franz-Adolf Czika
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Patent number: 8679586Abstract: The present invention relates to a method for improving the corrosion-protecting pre-treatment of metal surfaces and using rinse water in a manner to conserve resources in such a corrosion-protecting pre-treatment, comprising a conversion treatment step using an aqueous composition comprising at least 50 ppm of the elements B, Si, Ti, Zr and/or Hf in the form of water-soluble compounds at a pH value of 3 to 5.5, wherein a minimum fraction of 10 ppm of the elements B, Si, Ti, Zr and/or Hf in the form of water-soluble compounds is present in the last pre-rinse step and a portion of the aqueous composition of the conversion treatment step is contained in the first post-rinse step. The resource-conserving use of the rinse water is accomplished according to the invention by way of a cascaded return of rinse water from the last rinse step to the first rinse step.Type: GrantFiled: January 31, 2011Date of Patent: March 25, 2014Assignee: Henkel AG & Co. KGaAInventors: Franz-Adolf Czika, Sophie Cornen, Jens Kroemer, Michael Frank, Nicole Teubert, Jan-Willem Brouwer
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Patent number: 8557096Abstract: The present invention relates to a multistage method for the corrosion-protective and adhesion-promoting treatment of metal surfaces, comprising a first method step for passivating pretreatment using an acidic aqueous composition (A) containing water-soluble compounds of Zr and/or Ti and fluoride ions, a subsequent method step for post-treatment using an aqueous composition (B) containing at least one organic compound having at least one aromatic heterocyclic compound, wherein the aromatic heterocyclic compound has at least one nitrogen atom. The invention further relates to a metal surface treated according to the method according to the invention and the use of said treated metal surface for subsequent coating with an organic binding agent system.Type: GrantFiled: January 26, 2012Date of Patent: October 15, 2013Assignee: Henkel AG & Co. KGaAInventors: Andreas Schmidt, Nicole Teubert, Franz-Adolf Czika, Sophie Cornen
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Publication number: 20120301351Abstract: A high etch cleaner for aluminum and aluminum alloy substrates that leads to enhanced corrosion protective performance of a variety of anti-corrosion pretreatments. The cleaner comprises low levels of silicate of from 0 to 250 ppm, 50 to 500 ppm of at least one chelator, and has a pH of from 11.0 to 13.5. The cleaner may be used to etch from 0.5 to 4.0 grams per meter squared from substrates. Substrates treated with the cleaner and then coated with a variety of anti-corrosion pretreatments and outer coatings show enhanced corrosion resistance compared to substrates cleaned with standard cleaners that have low etch rates, high silicate levels and no chelating agents followed by anti-corrosion pretreatments and outer coatings.Type: ApplicationFiled: June 25, 2012Publication date: November 29, 2012Applicant: Henkel AF & Co. KGaAInventors: Edis KAPIC, Michael L. SIENKOWSKI, Bruce H. GOODREAU, Sophie CORNEN
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Publication number: 20120186986Abstract: The present invention relates to a multistage method for the corrosion-protective and adhesion-promoting treatment of metal surfaces, comprising a first method step for passivating pretreatment using an acidic aqueous composition (A) containing water-soluble compounds of Zr and/or Ti and fluoride ions, a subsequent method step for post-treatment using an aqueous composition (B) containing at least one organic compound having at least one aromatic heterocyclic compound, wherein the aromatic heterocyclic compound has at least one nitrogen atom. The invention further relates to a metal surface treated according to the method according to the invention and the use of said treated metal surface for subsequent coating with an organic binding agent system.Type: ApplicationFiled: January 26, 2012Publication date: July 26, 2012Inventors: Andreas Schmidt, Nicole Teubert, Franz-Adolf Czika, Sophie Cornen
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Publication number: 20110189401Abstract: The present invention relates to a method for improving the corrosion-protecting pre-treatment of metal surfaces and using rinse water in a manner to conserve resources in such a corrosion-protecting pre-treatment, comprising a conversion treatment step using an aqueous composition comprising at least 50 ppm of the elements B, Si, Ti, Zr and/or Hf in the form of water-soluble compounds at a pH value of 3 to 5.5, wherein a minimum fraction of 10 ppm of the elements B, Si, Ti, Zr and/or Hf in the form of water-soluble compounds is present in the last pre-rinse step and a portion of the aqueous composition of the conversion treatment step is contained in the first post-rinse step. The resource-conserving use of the rinse water is accomplished according to the invention by way of a cascaded return of rinse water from the last rinse step to the first rinse step.Type: ApplicationFiled: January 31, 2011Publication date: August 4, 2011Applicant: Henkel AG & Co. KGaAInventors: Franz-Adolf Czika, Sophie Cornen, Jens Kroemer, Michael Frank, Nicole Teubert, Jan-Willem Brouwer
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Publication number: 20110041957Abstract: The present invention relates to a chromium-free aqueous agent based on water-soluble compounds of titanium and/or zirconium and a source of fluoride ions, copper ions and metal ions selected from the group consisting of calcium, magnesium, aluminum, boron, zinc, iron, manganese and/or tungstene and to a method for the anti-corrosive conversion treatment of metal surfaces. The chromium-free aqueous agent is suitable for the treatment of various metal materials, joined in composite structures, amongst others of steel or galvanized steel or the alloys thereof or any combinations of said materials. Furthermore, surfaces of aluminum and alloys thereof can be treated in an anti-corrosive manner using the agent according to the invention. The anti-corrosive treatment is intended in particular as a pretreatment for a subsequent dip-coating.Type: ApplicationFiled: September 17, 2010Publication date: February 24, 2011Applicant: Henkel AG & Co. KGaAInventors: Jan-Willem Brouwer, Jens Kroemer, Sophie Cornen, Michael Frank, Nicole Teubert, Franz-Adolf Czika
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Publication number: 20080302448Abstract: A process for anticorrosion treatment of bare metal surfaces comprising steel surfaces, wherein the bare metal surfaces are contacted with an acidic aqueous solution of a fluoro complex of at least one element M selected from the group B, Si, Ti, Zr and Hf, at least one further component which is selected from among: a buffer system for the pH range from 2.5 to 5.5, nitrate ions, copper ions, silver ions, vanadium or vanadate ions, bismuth ions, magnesium ions, zinc ions, manganese ions, cobalt ions, nickel ions, tin ions, aromatic carboxylic acids with at least two groups containing donor atoms, or derivatives of such carboxylic acids, and silica particles with an average particle size of below 1 ?m; and contains no more than 1 mg/l of an organic polymer with allylamine or vinylamine monomers; the metal surfaces are then rinsed with water and thereafter are coated with a cathodically depositable electro-dipcoating.Type: ApplicationFiled: June 9, 2008Publication date: December 11, 2008Applicant: Henkel AG & Co. KGaAInventors: Stefan Frey, Jens Kromer, Silvia Hohagen, Sophie Cornen, Patrick Droniou, Peter Kuhn, Franz-Adolf Czika