Patents by Inventor Kay Brandes
Kay Brandes 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).
-
Patent number: 11993410Abstract: Packaged viscoelastic polymer substances and methods for the production of the packaged viscoelastic polymer substances are provided. The packaged viscoelastic polymer substances are further processable under the influence of heat and shear.Type: GrantFiled: November 13, 2019Date of Patent: May 28, 2024Assignee: TESA SEInventors: Klaus Massow, Volker Lass, Kay Brandes
-
Patent number: 11987409Abstract: Packaged viscoelastic polymer substances and methods for the production of the packaged viscoelastic polymer substances are provided. The packaged viscoelastic polymer substances are further processable under the influence of heat and shear.Type: GrantFiled: November 13, 2019Date of Patent: May 21, 2024Assignee: TESA SEInventors: Klaus Massow, Volker Lass, Kay Brandes
-
Publication number: 20220010079Abstract: Packaged viscoelastic polymer substances and methods for the production of the packaged viscoelastic polymer substances are provided. The packaged viscoelastic polymer substances are further processable under the influence of heat and shear.Type: ApplicationFiled: November 13, 2019Publication date: January 13, 2022Applicant: tesa SEInventors: Klaus MASSOW, Volker LASS, Kay BRANDES
-
Publication number: 20220010177Abstract: Packaged viscoelastic polymer substances and methods for the production of the packaged viscoelastic polymer substances are provided. The packaged viscoelastic polymer substances are further processable under the influence of heat and shear.Type: ApplicationFiled: November 13, 2019Publication date: January 13, 2022Applicant: tesa SEInventors: Klaus MASSOW, Volker LASS, Kay BRANDES
-
Patent number: 9896605Abstract: The invention describes a double-sided, carrierless self-adhesive tape which can be used in particular for achieving very durable adhesive bonding of a variety of articles. This double-sided, carrierless self-adhesive tape is composed of a homogeneously crosslinked pressure-sensitive acrylate hotmelt composition of single-layer construction, which may have been lined with release materials such as siliconized release papers or release films. The double-sided, carrierless pressure-sensitive adhesive tape is characterized in that it is composed of a photoinitiator-free, thermally homogeneously crosslinked acrylate hotmelt which is crosslinked predominantly by way of urethane units. It is notable in particular for the fact that it is homogeneously chemically crosslinked through the layer and, in contrast to acrylate layers crosslinked by radiation (UV/EBC), does not exhibit any profile of crosslinking through the layer.Type: GrantFiled: September 23, 2014Date of Patent: February 20, 2018Assignee: TESA SEInventors: Stephan Zöllner, Sven Hansen, Kay Brandes, Jorg Speer
-
Publication number: 20150024132Abstract: The invention describes a double-sided, carrierless self-adhesive tape which can be used in particular for achieving very durable adhesive bonding of a variety of articles. This double-sided, carrierless self-adhesive tape is composed of a homogeneously crosslinked pressure-sensitive acrylate hotmelt composition of single-layer construction, which may have been lined with release materials such as siliconized release papers or release films. The double-sided, carrierless pressure-sensitive adhesive tape is characterized in that it is composed of a photoinitiator-free, thermally homogeneously crosslinked acrylate hotmelt which is crosslinked predominantly by way of urethane units. It is notable in particular for the fact that it is homogeneously chemically crosslinked through the layer and, in contrast to acrylate layers crosslinked by radiation (UV/EBC), does not exhibit any profile of crosslinking through the layer.Type: ApplicationFiled: September 23, 2014Publication date: January 22, 2015Inventors: Stephan ZÖLLNER, Sven HANSEN, Kay BRANDES, Jorg SPEER
-
Patent number: 8802777Abstract: Crosslinker/accelerator system for thermally crosslinking polyacrylates with functional groups that are adapted to react with epoxy groups in a crosslinking reaction, comprising at least one epoxy group-containing substance and at least one substance that accelerates the crosslinking reaction at a temperature below the melting temperature of the polyacrylate.Type: GrantFiled: March 18, 2008Date of Patent: August 12, 2014Assignee: tesa SEInventors: Stephan Zöllner, Kay Brandes, Sven Hansen, Esther Von Possel
-
Patent number: 8449962Abstract: The invention relates to double-sided adhesive tape comprising a viscoelastic, first polymer layer, a second polymer layer on the top face and a third polymer layer on the bottom face of the viscoelastic, first polymer layer, where the viscoelastic, first polymer layer is based on a polymer which is obtainable by polymerization of a monomer composition of 65% to 97% by weight of ethylhexyl acrylate and/or butyl acrylate, 0% to 30% by weight of methyl acrylate, 3% to 15% by weight of acrylic acid, the viscoelastic interlayer being crosslinked, the second polymer layer is based on a polymer which is obtainable by polymerization of a monomer composition of 85% to 95% by weight of ethylhexyl acrylate and/or butyl acrylate, 5% to 15% by weight of acrylic acid, this second polymer layer being thermally crosslinked using at least one epoxycyclohexyl derivative in the absence of accelerators.Type: GrantFiled: September 28, 2010Date of Patent: May 28, 2013Assignee: tesa SEInventors: Alexander Prenzel, Matthias Heins, Esther von Possel, Kay Brandes
-
Publication number: 20110165402Abstract: The invention describes a double-sided pressure-sensitive adhesive tape of the kind which can be used in particular for achieving very durable bonds at high temperatures. These adhesive tapes, especially adhesive assembly tapes for the permanent fixing of articles to substrates, are preferably of multilayer construction. The inventive double-sided pressure-sensitive adhesive tapes are characterized in that the viscoelastic carrier layer is composed of a photoinitiator-free, thermally homogeneously crosslinked acrylate hotmelt. They are further characterized in that these homogeneously thermally crosslinked acrylate hotmelts have crosslinking sites by way of urethane units. This viscoelastic carrier layer is covered on both sides in each case by adhesive layers, preferably pressure-sensitive adhesive layers. These layers are connected by chemical reaction to the viscoelastic carrier layer.Type: ApplicationFiled: March 11, 2011Publication date: July 7, 2011Applicant: tesa SEInventors: Stephan ZOLLNER, Sven Hansen, Kay Brandes, Jorg Speer
-
Patent number: 7935383Abstract: A method of producing an adhesive tape having at least one carrier layer and two outer adhesive layers, wherein the carrier layer is from 300 ?m to 5000 ?m thick and is composed of a photoinitiator-free homogeneously thermally crosslinked polymer based on acrylate and/or methacrylate, in which at least one trimerized isocyanate crosslinker is added in the melt to a polyacrylate copolymer having primary hydroxyl groups and based on acrylic esters and/or methacrylic ester, a layer of the polyacrylate together with the crosslinker is conveyed to a coating unit, where pressure-sensitive adhesive layers are laminated onto both sides of the not-yet fully-crosslinked polyacrylate layer, and the crosslinking of the polyacrylate leads to a homogeneously crosslinked carrier layer.Type: GrantFiled: September 9, 2005Date of Patent: May 3, 2011Assignee: tesa SEInventors: Stephan Zollner, Sven Hansen, Kay Brandes, Jorg Speer
-
Publication number: 20110081535Abstract: The invention relates to double-sided adhesive tape comprising a viscoelastic, first polymer layer, a second polymer layer on the top face and a third polymer layer on the bottom face of the viscoelastic, first polymer layer, where the viscoelastic, first polymer layer is based on a polymer which is obtainable by polymerization of a monomer composition of 65% to 97% by weight of ethylhexyl acrylate and/or butyl acrylate, 0% to 30% by weight of methyl acrylate, 3% to 15% by weight of acrylic acid, the viscoelastic interlayer being crosslinked, the second polymer layer is based on a polymer which is obtainable by polymerization of a monomer composition of 85% to 95% by weight of ethylhexyl acrylate and/or butyl acrylate, 5% to 15% by weight of acrylic acid, this second polymer layer being thermally crosslinked using at least one epoxycyclohexyl derivative in the absence of accelerators.Type: ApplicationFiled: September 28, 2010Publication date: April 7, 2011Applicant: tesa SEInventors: Alexander Prenzel, Matthias Heins, Esther von Possel, Kay Brandes
-
Patent number: 7910163Abstract: A process for producing an adhesive tape with single- or double-sided crosslinked pressure-sensitive acrylate hotmelt adhesive layer, wherein a crosslinker is added in the melt to a polyacrylate copolymer (“polyacrylate”) based on acrylic and/or methacrylic esters, the polyacrylate with crosslinker is conveyed to a coating unit, where it is applied to a web-form layer and following application is homogeneously crosslinked, where the crosslinker is a thermal crosslinker and some of the acrylic and/or methacrylic esters contain primary hydroxyl groups and addition takes place preferably in an extruder.Type: GrantFiled: September 9, 2005Date of Patent: March 22, 2011Assignee: tesa AGInventors: Stephan Zollner, Sven Hansen, Kay Brandes, Jorg Speer
-
Publication number: 20100104864Abstract: Crosslinker/accelerator system for thermally crosslinking polyacrylates with functional groups that are adapted to react with epoxy groups in a crosslinking reaction, comprising at least one epoxy group-containing substance and at least one substance that accelerates the crosslinking reaction at a temperature below the melting temperature of the polyacrylate.Type: ApplicationFiled: March 18, 2008Publication date: April 29, 2010Applicant: TESA SEInventors: Stephan Zöllner, Kay Brandes, Sven Hansen, Esther Von Possel
-
Patent number: 7521487Abstract: A process for preparing a polyacrylate-based shaped article, a polyacrylate being polymerized by a conventional method, wherein the polyacrylate comprises copolymerized comonomers having thermally crosslinkable groups and comonomers having attached photoinitiators, and the polyacrylate is crosslinked thermally in a first step and by irradiation with UV light in a second step.Type: GrantFiled: April 29, 2005Date of Patent: April 21, 2009Assignee: tesa AktiengesellschaftInventors: Sven Hansen, Marc Husemann, Kay Brandes, Stephan Zollner
-
Publication number: 20090053447Abstract: The invention describes a double-sided, carrierless self-adhesive tape which can be used in particular for achieving very durable adhesive bonding of a variety of articles. This double-sided, carrierless self-adhesive tape is composed of a homogeneously crosslinked pressure-sensitive acrylate hotmelt composition of single-layer construction, which may have been lined with release materials such as siliconized release papers or release films. The double-sided, carrierless pressure-sensitive adhesive tape is characterized in that it is composed of a photoinitiator-free, thermally homogeneously crosslinked acrylate hotmelt which is crosslinked predominantly by way of urethane units. It is notable in particular for the fact that it is homogeneously chemically crosslinked through the layer and, in contrast to acrylate layers crosslinked by radiation (UV/EBC), does not exhibit any profile of crosslinking through the layer.Type: ApplicationFiled: September 9, 2005Publication date: February 26, 2009Applicant: tesa AGInventors: Stephan Zollner, Sven Hansen, Kay Brandes, Jorg Speer
-
Publication number: 20090048398Abstract: A process for producing an adhesive tape with single- or double-sided crosslinked pressure-sensitive acrylate hotmelt adhesive layer, wherein a crosslinker is added in the melt to a polyacrylate copolymer (“polyacrylate”) based on acrylic and/or methacrylic esters, the polyacrylate with crosslinker is conveyed to a coating unit, where it is applied to a web-form layer and following application is homogeneously crosslinked, where the crosslinker is a thermal crosslinker and some of the acrylic and/or methacrylic esters contain primary hydroxyl groups and addition takes place preferably in an extruder.Type: ApplicationFiled: September 9, 2005Publication date: February 19, 2009Inventors: Stephan Zollner, Sven Hansen, Kay Brandes, Jorg Speer
-
Publication number: 20080118751Abstract: The invention describes a double-sided pressure-sensitive adhesive tape of the kind which can be used in particular for achieving very durable bonds at high temperatures. These adhesive tapes, especially adhesive assembly tapes for the permanent fixing of articles to substrates, are preferably of multilayer construction. The inventive double-sided pressure-sensitive adhesive tapes are characterized in that the viscoelastic carrier layer is composed of a photoinitiator-free, thermally homogeneously crosslinked acrylate hotmelt. They are further characterized in that these homogeneously thermally crosslinked acrylate hotmelts have crosslinking sites by way of urethane units. This viscoelastic carrier layer is covered on both sides in each case by adhesive layers, preferably pressure-sensitive adhesive layers. These layers are connected by chemical reaction to the viscoelastic carrier layer.Type: ApplicationFiled: September 9, 2005Publication date: May 22, 2008Applicant: Tesa AGInventors: Stephan Zollner, Sven Hansen, Kay Brandes, Jorg Speer
-
Publication number: 20070213464Abstract: A pressure-sensitive adhesive comprising organic fillers, obtainable by a process in which a thermal crosslinker is added in the melt to a polyacrylate copolymer (“polyacrylate”) based on acrylic esters and/or methacrylic esters, at least a fraction of which contains primary hydroxyl groups, at least one organic filler has been or is added to the polyacrylate, the polyacrylate provided with the crosslinker and the filler is conveyed to a coating unit, where it is applied to a web-form coat of a further material and, following application, is homogeneously crosslinked, a process as outlined above, and adhesive tapes furnished with the pressure-sensitive adhesive.Type: ApplicationFiled: May 12, 2006Publication date: September 13, 2007Applicant: tesa AktiengesellschaftInventors: Stephan Zollner, Sven Hansen, Kay Brandes, Klaus Massow
-
Publication number: 20060052472Abstract: A process for preparing a polyacrylate-based shaped article, a polyacrylate being polymerized by a conventional method, wherein the polyacrylate comprises copolymerized comonomers having thermally crosslinkable groups and comonomers having attached photoinitiators, and the polyacrylate is crosslinked thermally in a first step and by irradiation with UV light in a second step.Type: ApplicationFiled: April 29, 2005Publication date: March 9, 2006Applicant: Tesa AktiengesellschaftInventors: Sven Hansen, Marc Husemann, Kay Brandes, Stephan Zollner