Patents by Inventor Uwe Schumann
Uwe Schumann 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: 11958995Abstract: A method is provided for sealing discontinuities in vehicle bodywork, using an at least two-layer adhesive product which comprises at least one thermally activatable adhesive layer and a film layer of a polymeric material, where first the adhesive product is positioned with the adhesive layer onto the discontinuity for sealing, the adhesive layer sealingly wets the discontinuity, optionally after temperature increase, at elevated temperature the thermal activation of the adhesive ensues, characterized in that the adhesive layer used comprises a layer of a thermally activatable adhesive, specifically a layer based on a vulcanizable adhesive, and the thermal activation takes place with vulcanization of the adhesive.Type: GrantFiled: August 16, 2018Date of Patent: April 16, 2024Assignee: tesa SEInventors: Sebastian Dietze, Jasmin Flucke, Uwe Schümann, Anna Schubert
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Patent number: 11898067Abstract: The present invention relates to a reactive adhesive film comprising (a) a polymeric film-forming matrix, (b) at least one reactive monomer or reactive resin, and (c) a reagent selected from an initiator, in particular a radical initiator, or an activator, featuring enhanced heat-and-humidity resistance, and to a reactive 2-component adhesive system in film form for bonding diverse materials, such as, for example, metal, wood, glass and/or plastic material.Type: GrantFiled: November 22, 2017Date of Patent: February 13, 2024Assignee: TESA SEInventors: Uwe Schümann, Clementine Pradier
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Publication number: 20230117532Abstract: The present invention relates to a light-curing, reactive, pressure-sensitive adhesive film of adhesive. With the film of adhesive of the invention, structural bond strengths can be achieved. The film of adhesive comprises (a) at least one reactive monomer or reactive resin, (b) an initiator, (c) a photoredox catalyst, (d) a polymer of monomers comprising N-vinyl compounds and (e) a film-forming polymer.Type: ApplicationFiled: September 29, 2022Publication date: April 20, 2023Applicant: tesa SEInventors: Uwe Schümann, Frank Hannemann, Sebastian Dietze, Tanita Czeski, André Rellmann-Sprink
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Publication number: 20220340795Abstract: Reactive adhesive film for bonding various materials, including plastic to metal, the adhesive film comprising (a) a polymeric film-forming matrix, (b) at least one epoxide-functionalized (meth)acrylate or vinyl monomer and (c) a reagent selected from an initiator, in particular a free-radical initiator, or an activator. Further disclosed are reactive adhesive film systems comprising two reactive adhesive films. Methods for producing reactive adhesive films, and methods are also disclosed.Type: ApplicationFiled: October 7, 2020Publication date: October 27, 2022Applicant: TESA SEInventors: Uwe SCHÜMANN, Séverine CROUZY, Björn ZEYSING, Claudia MOEHRKE, Marta LUNDING
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Patent number: 11279854Abstract: The invention relates to a solution in particular for the pre-treatment of a surface, containing, preferably consisting of: I) at least one first silane of formula (I) with R1, R2, R3 independently selected from the groups methyl, ethyl, 2 methoxyethyl, propyl, i-propyl, butyl, benzyl, wherein m=0 or 1, n=3 to 12, p=1 or 2, and for p=1, Y=a functional group selected from the groups (meth)acryl, (meth)acryloxy, mercapto, ureido, —NH—CH2—CH2—NR4R5, —NR4R5 (with R4 and R5 independently selected from the groups H, alkyl, phenyl, benzyl, cycloalkyl), or for p=2, Y=NH; II) at least one second silane of formula (II) with R1, R2, R3 independently selected from the groups methyl, ethyl, 2 methoxyethyl, propyl, i-propyl, butyl, benzyl, wherein m=0 or 1, R8=H, alkyl, phenyl, benzyl or cycloalkyl; III) at least one alcohol; and IV) water.Type: GrantFiled: August 18, 2016Date of Patent: March 22, 2022Assignee: TESA SEInventors: Sebastian Dietze, Uwe Schümann, Tanja Altenwegner, Eugenia Seibel
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Patent number: 11208581Abstract: Thermally vulcanisable, meltable adhesives and processes have a meltable polybutadiene-polyurethane, ground sulphur and optionally at least one vulcanisation accelerator, at least one filling material, at least one epoxide resin, at least one tackifier resin, bitumen, at least one softener and further auxiliary and additive materials, wherein said adhesives and processes can be thermally vulcanised within a temperature range of 130° C. to 230° C., such that same, as well as an adhesive strip produced from same, can be used for adhesion and/or sealing in the automotive industry, as well as in structural work on oiled sheet metal, and in the painting line on e-coated or otherwise painted sheet metal, for example, for crimp fold adhesion, for crimp fold sealing, for seam sealing, for lining adhesion, for hole closure and much more.Type: GrantFiled: September 12, 2017Date of Patent: December 28, 2021Assignee: TESA SEInventors: Sebastian Dietze, Kim Elsenbach, Frank Hannemann, Björn Zeysing, Uwe Schümann, Matthias Seibert, Katja Meyer, Bernd Dietz, Jasmin Flucke, Amy Kaus
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Patent number: 11111423Abstract: A thermally vulcanizable pressure-sensitive adhesive comprising a chemically precrosslinked, pressure-sensitively adhesive polybutadiene-polyurethane and ground sulfur, which during the heating phase remains pressure-sensitively adhesive, does not liquefy and hence in this phase, in which the vulcanization has not yet started and the curing has not yet commenced, has shear strength at least under load to moderate low, is able to transmit forces and hence to perform holding, a process for producing it, an adhesive tape comprising this pressure-sensitive adhesive, and a process for producing the adhesive tape.Type: GrantFiled: March 14, 2019Date of Patent: September 7, 2021Assignee: TESA SEInventors: Uwe Schümann, Sebastian Dietze, Christine Böhm, Marten Papenbroock
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Patent number: 11060000Abstract: A hydroxyl-functionalized polybutadiene polyurethane hotmelt prepolymer that comprises the chemical reaction product of at least one polybutadiene diol, at least one chain extender having a hydroxyl functionality of two and a molecular weight of less than or equal to 300 g/mol and optionally at least one polybutadiene polyol that has a number-average mean functionality between greater than 2.0 and less than or equal to 3.0 with at least one aliphatic or alicyclic diisocyanate, is thermally vulcanizable, and at room temperature is sufficiently solid or high-viscosity that it can be rolled into a roll as a film applied to a carrier without flowing out or being squeezed out on the side.Type: GrantFiled: September 12, 2017Date of Patent: July 13, 2021Assignee: TESA SEInventors: Sebastian Dietze, Uwe Schümann
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Patent number: 10907076Abstract: Method of adhesively bonding two surfaces by means of a reactive adhesive film system comprising at least two adhesive films (F1 and F2), each comprising at least one reactive component (R1 and R2), adhesive bonding being effected by a reaction which requires the presence of both reactive components (R1 and R2), wherein, prior to adhesive bonding, a separating layer (T) which is impermeable to the reactive components is provided between the adhesive films which are to be brought into contact with one another for the reaction, and the separating layer (T) is removed at least in part by means of a laser in order to effect bonding, so that the adhesive films (F1 and F2) come into direct contact with one another and the reaction begins in the presence of both reactive components (R1 and R2), and reactive adhesive film system for use in this method.Type: GrantFiled: November 24, 2016Date of Patent: February 2, 2021Assignee: TESA SEInventors: Sebastian Dietze, Arne Koops, Gero Maatz, Uwe Schümann
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Publication number: 20210002521Abstract: An adhesive, more particularly a thermally curable, meltable, preferably pressure-sensitive adhesive, which is curable thermally from a temperature of 110° C., is storage-stable for approximately one month at 60° C. and longer than one year at 23° C., and an adhesive tape produced therefrom, comprising an epoxide-functionalized acrylonitrile/butadiene copolymer having on average more than 1.5 epoxide groups per molecule, and the ground reaction product of phthalic anhydride and diethylenetriamine, for use in the automotive industry both in bodyshell construction on oiled metal sheets and in the coating line on cathodically electrocoated or otherwise-coated metal sheets, for bonding and/or sealing, for example for hem fold bonding, for hem fold sealing, for seam sealing, for underseal bonding, for hole stopping, and much more.Type: ApplicationFiled: July 2, 2020Publication date: January 7, 2021Applicant: tesa SEInventors: Uwe Schümann, Nicholas Buggy, Sebastian Dietze, Kim Elsenbach
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Publication number: 20200270486Abstract: A method is provided for sealing discontinuities in vehicle bodywork, using an at least two-layer adhesive product which comprises at least one thermally activatable adhesive layer and a film layer of a polymeric material, where first the adhesive product is positioned with the adhesive layer onto the discontinuity for sealing, the adhesive layer sealingly wets the discontinuity, optionally after temperature increase, at elevated temperature the thermal activation of the adhesive ensues, characterized in that the adhesive layer used comprises a layer of a thermally activatable adhesive, specifically a layer based on a vulcanizable adhesive, and the thermal activation takes place with vulcanization of the adhesive.Type: ApplicationFiled: August 16, 2018Publication date: August 27, 2020Applicant: tesa SEInventors: Sebastian Dietze, Jasmin Flucke, Uwe Schümann, Anna Schubert
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Patent number: 10711163Abstract: Reactive adhesive film, comprising (a) a polymeric film-forming matrix, (b) at least one reactive monomer or reactive resin, and (c) a reagent selected from the group consisting of a radical initiator and an activator, and a reactive 2-component adhesive film system for bonding various materials, such as metal, wood, glass and/or plastic.Type: GrantFiled: April 17, 2019Date of Patent: July 14, 2020Assignee: TESA SEInventors: Uwe Schümann, Daniel Schmitz-Stapela, Sven Reiter, Thilo Dollase
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Patent number: 10626309Abstract: A biodegradable, pressure sensitive adhesive based on the chemical reaction product of one or more aliphatic polyester polyols having a hydroxyl functionality of between >2 and <4; one or more aliphatic polyester-polyols having a hydroxyl functionality of between >1 and ?2; one or more chain extenders having dual hydroxyl functionalities and having a molecular weight of ?200 g/mo; and, one or more aliphatic diisocyanates; characterized in that the ratio of the total number of isocyanate groups to the total number of hydroxyl groups in the materials used to form the reaction product is between ?0.4 and <1.0, and preferably is between ?0.6 and ?0.9.Type: GrantFiled: December 15, 2014Date of Patent: April 21, 2020Assignee: TESA SEInventors: Ralf Ihrig, Uwe Schümann, Manfred Spies, Kirstin Weiland
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Publication number: 20200062998Abstract: The present invention relates to a reactive adhesive film comprising (a) a polymeric film-forming matrix, (b) at least one reactive monomer or reactive resin, and (c) a reagent selected from an initiator, in particular a radical initiator, or an activator, featuring enhanced heat-and-humidity resistance, and to a reactive 2-component adhesive system in film form for bonding diverse materials, such as, for example, metal, wood, glass and/or plastic material.Type: ApplicationFiled: November 22, 2017Publication date: February 27, 2020Applicant: TESA SEInventors: Uwe SCHÜMANN, Clementine PRADIER
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Publication number: 20200040224Abstract: A hydroxyl-functionalized polybutadiene polyurethane hotmelt prepolymer that comprises the chemical reaction product of at least one polybutadiene diol, at least one chain extender having a hydroxyl functionality of two and a molecular weight of less than or equal to 300 g/mol and optionally at least one polybutadiene polyol that has a number-average mean functionality between greater than 2.0 and less than or equal to 3.0 with at least one aliphatic or alicyclic diisocyanate, is thermally vulcanizable, and at room temperature is sufficiently solid or high-viscosity that it can be rolled into a roll as a film applied to a carrier without flowing out or being squeezed out on the side.Type: ApplicationFiled: September 12, 2017Publication date: February 6, 2020Inventors: Sebastian DIETZE, Uwe Schümann
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Patent number: 10513634Abstract: Primer for adhesive tape with improved adhesion promoting properties, comprising a mixture G, which is dissolved or dispersed in one or more solvents, consisting of at least one copolymer obtained by copolymerization of a monomer mixture comprising an amount of at least 90 wt % of the following monomers: vinylcaprolactam and/or vinylpyrrolidone; one or more of the monomers a) and/or b): a) acrylic acid ester of a linear, primary alcohol having 2 to 10 carbon atoms in the alkyl group of the alcohol, b) acrylic acid ester of a branched, non-cyclic alcohol having 3 to 12 carbon atoms in the alkyl group, at least one chlorinated polyolefin, and at least one metal compound selected from the group consisting of metal acetylacetonates, metal alkoxides and alkoxy-metal acetylacetonates.Type: GrantFiled: August 27, 2015Date of Patent: December 24, 2019Assignee: TESA SEInventors: Sebastian Dietze, Kai Ellringmann, Marco Kupsky, Duc Hung Nguyen, Uwe Schümann
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Publication number: 20190284459Abstract: A thermally vulcanizable pressure-sensitive adhesive comprising a chemically precrosslinked, pressure-sensitively adhesive polybutadiene-polyurethane and ground sulfur, which during the heating phase remains pressure-sensitively adhesive, does not liquefy and hence in this phase, in which the vulcanization has not yet started and the curing has not yet commenced, has shear strength at least under load to moderate low, is able to transmit forces and hence to perform holding, a process for producing it, an adhesive tape comprising this pressure-sensitive adhesive, and a process for producing the adhesive tape.Type: ApplicationFiled: March 14, 2019Publication date: September 19, 2019Applicant: tesa SEInventors: Uwe SCHÜMANN, Sebastian DIETZE, Christine BÖHM, Marten PAPENBROOCK
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Patent number: 10400140Abstract: Reactive adhesive film, comprising (a) a polymeric film-forming matrix, (b) at least one reactive monomer or reactive resin, and (c) a reagent selected from the group consisting of a radical initiator and an activator, and a reactive 2-component adhesive film system for bonding various materials, such as metal, wood, glass and/or plastic.Type: GrantFiled: June 5, 2014Date of Patent: September 3, 2019Assignee: TESA SEInventors: Uwe Schümann, Daniel Schmitz-Stapela, Sven Reiter, Thilo Dollase
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Publication number: 20190241767Abstract: Reactive adhesive film, comprising (a) a polymeric film-forming matrix, (b) at least one reactive monomer or reactive resin, and (c) a reagent selected from the group consisting of a radical initiator and an activator, and a reactive 2-component adhesive film system for bonding various materials, such as metal, wood, glass and/or plastic.Type: ApplicationFiled: April 17, 2019Publication date: August 8, 2019Applicant: TESA SEInventors: Uwe SCHÜMANN, Daniel SCHMITZ-STAPELA, Sven REITER, Thilo DOLLASE
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Publication number: 20190218436Abstract: Thermally vulcanisable, meltable adhesives and processes have a meltable polybutadiene-polyurethane, ground sulphur and optionally at least one vulcanisation accelerator, at least one filling material, at least one epoxide resin, at least one tackifier resin, bitumen, at least one softener and further auxiliary and additive materials, wherein said adhesives and processes can be thermally vulcanised within a temperature range of 130° C. to 230° C., such that same, as well as an adhesive strip produced from same, can be used for adhesion and/or sealing in the automotive industry, as well as in structural work on oiled sheet metal, and in the painting line on e-coated or otherwise painted sheet metal, for example, for crimp fold adhesion, for crimp fold sealing, for seam sealing, for lining adhesion, for hole closure and much more.Type: ApplicationFiled: September 12, 2017Publication date: July 18, 2019Applicant: TESA SEInventors: Sebastian DIETZE, Kim ELSENBACH, Frank HANNEMANN, Björn ZEYSING, Uwe SCHÜMANN, Matthias SEIBERT, Katja MEYER, Bernd DIETZ, Jasmin FLUCKE, Amy KAUS