Patents by Inventor Stephan Hermes
Stephan Hermes 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: 9396833Abstract: The invention relates to a composition for printing electrodes on a substrate, comprising 30 to 90% by weight of electrically conductive particles, 0 to 7% by weight of glass frit, 0.1 to 5% by weight of at least one absorbent for laser radiation, 0 to 8% by weight of at least one matrix material, 0 to 8% by weight of at least one organometallic compound, 3 to 50% by weight of water as a solvent, 0 to 65% by weight of at least one retention aid and 0 to 5% by weight of at least one additive, based in each case on the total mass of the composition. The invention further relates to a use of the composition.Type: GrantFiled: September 1, 2010Date of Patent: July 19, 2016Assignee: BASF SEInventors: Frank Kleine Jaeger, Stephan Hermes, Juergen Kaczun
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Patent number: 8961836Abstract: The invention relates to a composition for printing conductor tracks onto a substrate, especially for solar cells, using a laser printing process, which composition comprises 30 to 90% by weight of electrically conductive particles, 0 to 7% by weight of glass frit, 0 to 8% by weight of at least one matrix material, 0 to 8% by weight of at least one organometallic compound, 0 to 5% by weight of at least one additive and 3 to 69% by weight of solvent. The composition further comprises 0.5 to 15% by weight of nanoparticles as absorbents for laser radiation, which nanoparticles are particles of silver, gold, platinum, palladium, tungsten, nickel, tin, iron, indium tin oxide, titanium carbide or titanium nitride. The composition comprises not more than 1% by weight of elemental carbon.Type: GrantFiled: August 25, 2010Date of Patent: February 24, 2015Assignee: BASF SEInventors: Frank Kleine Jaeger, Stephan Hermes
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Patent number: 8920591Abstract: The invention relates to a process for producing electrically conductive bonds between solar cells, in which an adhesive comprising electrically conductive particles is first transferred from a carrier to the substrate by irradiating the carrier with a laser, the adhesive transferred to the substrate is partly dried and/or cured to form an adhesive layer, in a further step the adhesive is bonded to an electrical connection, and finally the adhesive layer is cured. The invention further relates to an adhesive for performing the process, comprising 20 to 98% by weight of electrically conductive particles, 0.01 to 60% by weight of an organic binder component used as a matrix material, based in each case on the solids content of the adhesive, 0.005 to 20% by weight of absorbent based on the weight of the conductive particles in the adhesive, and 0 to 50% by weight of a dispersant and 1 to 20% by weight of solvent, based in each case on the total mass of the undried and uncured adhesive.Type: GrantFiled: February 16, 2011Date of Patent: December 30, 2014Assignee: BASF SEInventors: Frank Kleine Jaeger, Juergen Kaczun, Stephan Hermes
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Patent number: 8895651Abstract: The invention relates to a composition for printing a seed layer for electrodeposition or electroless deposition of a metal for the production of full-area or structured metallic surfaces on a substrate, comprising 0.1 to 6% by weight of electrolessly and/or electrolytically coatable particles, 40 to 98.8% by weight of at least one solvent, 0 to 15% by weight of a crosslinker, 0.1 to 6% by weight of at least one dispersing additive, 0 to 5% by weight of at least one further additive and 1 to 20% by weight of at least one polymer, said at least one polymer being in the form of a dispersion. The invention further relates to a process for producing full-area or structured metallic surfaces on a substrate, and to a use of the process.Type: GrantFiled: February 15, 2011Date of Patent: November 25, 2014Assignee: BASF SEInventors: Stephan Hermes, Sorin Ivanovici
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Publication number: 20120312467Abstract: The invention relates to a process for producing electrically conductive bonds between solar cells, in which an adhesive comprising electrically conductive particles is first transferred from a carrier to the substrate by irradiating the carrier with a laser, the adhesive transferred to the substrate is partly dried and/or cured to form an adhesive layer, in a further step the adhesive is bonded to an electrical connection, and finally the adhesive layer is cured. The invention further relates to an adhesive for performing the process, comprising 20 to 98% by weight of electrically conductive particles, 0.01 to 60% by weight of an organic binder component used as a matrix material, based in each case on the solids content of the adhesive, 0.005 to 20% by weight of absorbent based on the weight of the conductive particles in the adhesive, and 0 to 50% by weight of a dispersant and 1 to 20% by weight of solvent, based in each case on the total mass of the undried and uncured adhesive.Type: ApplicationFiled: February 16, 2011Publication date: December 13, 2012Applicant: BASF SEInventors: Frank Kleine Jaeger, Juergen Kaczun, Stephan Hermes
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Publication number: 20120161081Abstract: The invention relates to a composition for printing electrodes on a substrate, comprising 30 to 90% by weight of electrically conductive particles, 0 to 7% by weight of glass frit, 0.1 to 5% by weight of at least one absorbent for laser radiation, 0 to 8% by weight of at least one matrix material, 0 to 8% by weight of at least one organometallic compound, 3 to 50% by weight of water as a solvent, 0 to 65% by weight of at least one retention aid and 0 to 5% by weight of at least one additive, based in each case on the total mass of the composition. The invention further relates to a use of the composition.Type: ApplicationFiled: September 1, 2010Publication date: June 28, 2012Applicant: BASF SEInventors: Frank Kleine Jaeger, Stephan Hermes, Juergen Kaczun
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Publication number: 20120164777Abstract: The invention relates to a composition for printing conductor tracks onto a substrate, especially for solar cells, using a laser printing process, which composition comprises 30 to 90% by weight of electrically conductive particles, 0 to 7% by weight of glass frit, 0 to 8% by weight of at least one matrix material, 0 to 8% by weight of at least one organometallic compound, 0 to 5% by weight of at least one additive and 3 to 69% by weight of solvent. The composition further comprises 0.5 to 15% by weight of nanoparticles as absorbents for laser radiation, which nanoparticles are particles of silver, gold, platinum, palladium, tungsten, nickel, tin, iron, indium tin oxide, titanium carbide or titanium nitride. The composition comprises not more than 1% by weight of elemental carbon.Type: ApplicationFiled: August 25, 2010Publication date: June 28, 2012Applicant: BASF SEInventors: Frank Kleine Jaeger, Stephan Hermes
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Publication number: 20120132274Abstract: The invention relates to a process for the production of a structured electrically conductive coating on a substrate, in which first a monolayer or oligolayer of a surface-hydrophobizing substance is applied to a surface of the substrate and then a substance comprising electrically conductive particles is applied to the substrate according to a predetermined pattern. The invention furthermore relates to a use of the process for the production of solar cells or circuit boards and to an electronic component comprising a substrate to which a structured electrically conductive surface is applied, a monolayer or oligolayer of a surface-hydrophobizing material being applied to the substrate and the structured electrically conductive surface being applied to the monolayer or oligolayer.Type: ApplicationFiled: June 18, 2010Publication date: May 31, 2012Applicant: BASF SEInventors: Frank Kleine Jaeger, Stephan Hermes
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Publication number: 20110201190Abstract: The invention relates to a composition for printing a seed layer for electrodeposition or electroless deposition of a metal for the production of full-area or structured metallic surfaces on a substrate, comprising 0.1 to 6% by weight of electrolessly and/or electrolytically coatable particles, 40 to 98.8% by weight of at least one solvent, 0 to 15% by weight of a crosslinker, 0.1 to 6% by weight of at least one dispersing additive, 0 to 5% by weight of at least one further additive and 1 to 20% by weight of at least one polymer, said at least one polymer being in the form of a dispersion. The invention further relates to a process for producing full-area or structured metallic surfaces on a substrate, and to a use of the process.Type: ApplicationFiled: February 15, 2011Publication date: August 18, 2011Applicant: BASF SEInventors: STEPHAN HERMES, Sorin Ivanovici
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Publication number: 20110017254Abstract: What is described is a thermoelectric module composed of p- and n-conductive thermoelectric material legs which are connected to one another alternately via electrically conductive metallic contacts, wherein the electrically conductive metallic contacts are connected to the thermoelectric material legs by hard soldering or high-temperature soldering with a solder comprising metal and glass.Type: ApplicationFiled: July 23, 2010Publication date: January 27, 2011Applicant: BASF SEInventors: Madalina Andreea STEFAN, Stephan Hermes
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Publication number: 20110014492Abstract: The process for the application of a metal layer on a substrate by deposition of a metal from a metal salt solution comprises the presence of exfoliated graphite in the substrate surface.Type: ApplicationFiled: March 13, 2009Publication date: January 20, 2011Inventors: Ketan Joshi, Stephan Hermes, Norbert Wagner, Christoffer Kieburg
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Publication number: 20090221418Abstract: The invention relates to a process for producing a catalyst comprising a porous support and at least one active metal, which comprises providing a porous support which has a specific BET surface area of at least 500 m2/g and is transparent to an activating radiation, applying at least one active metal precursor which comprises at least one active metal and at least one group which is bound via a ligator atom selected from among oxygen, sulfur, nitrogen, phosphorus and carbon to the active metal atom to the porous support so as to produce an adduct which comprises the porous support and the at least one active metal precursor; and illuminating the adduct with the activating radiation to convert the at least one active metal into its reduced form.Type: ApplicationFiled: July 25, 2006Publication date: September 3, 2009Applicant: SUD-CHEMIE AGInventors: Richard Fischer, Arnold Tissler, Roland Fischer, Stephan Hermes, Martin Muhler
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Publication number: 20090169857Abstract: The invention relates to a process for producing highly porous layers, which comprises making available a substrate having a substrate surface; modifying at least sections of the substrate surface so as to produce surface-modified sections in which anchor groups for metal ions are provided; applying at least one MOF to the surface-modified sections of the substrate so as to produce a layer of the MOF. The invention further relates to a composite comprising a substrate and a porous layer of an MOF located on the substrate.Type: ApplicationFiled: July 25, 2006Publication date: July 2, 2009Applicant: Sud-Chemie AGInventors: Richard Fischer, Roland Fischer, Christof Woll, Felicitas Schroder, Stephan Hermes