Patents by Inventor Jan D. Forster
Jan D. Forster 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: 11518914Abstract: The present disclosure relates to a pressure sensitive adhesive assembly comprising at least a first pressure sensitive adhesive layer comprising a hollow non-porous particulate filler material, wherein the surface of the hollow non-porous particulate filler material is provided with a hydrophobic surface modification. The present disclosure also relates to a method of manufacturing such a pressure sensitive adhesive assembly.Type: GrantFiled: May 13, 2014Date of Patent: December 6, 2022Assignee: 3M Innovative Properties CompanyInventors: Jan Heimink, Kerstin Unverhau, Jan D. Forster, Jan U. Wieneke, Frank Kuester, Siegfried R. Goeb, Doreen Eckhardt, Regina Sikora, Ruchi Pandey, Suresh S. Iyer
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Patent number: 11332648Abstract: The present disclosure relates to a pressure sensitive adhesive assembly suitable for bonding to a substrate provided with an uneven surface, wherein the pressure sensitive adhesive assembly comprises a polymeric foam layer comprising a polymeric base material and a particulate filler material comprising a thermoplastic material, and wherein the polymeric foam layer has a complex viscosity comprised between 2,000 Pa·s to 80,000 Pa·s, when measured at 120 C according to the test method described in the experimental section. The present disclosure is also directed to a method of applying a pressure sensitive adhesive assembly to a substrate provided with an uneven surface, and uses thereof.Type: GrantFiled: July 9, 2015Date of Patent: May 17, 2022Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Jan Heimink, Kerstin Unverhau, Jan D. Forster
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Patent number: 11267220Abstract: The present disclosure is directed to a multilayer pressure sensitive adhesive (PSA) assembly, comprising at least one pressure sensitive adhesive layer and a polymeric foam layer, wherein the pressure sensitive adhesive layer comprises a pressure-sensitive adhesive composition comprising a reaction product of a polymerizable material comprising: a) 2-propylheptyl acrylate as a first monomer; and optionally b) a second monomer having an ethylenically unsaturated group. The present disclosure is also directed to a method of manufacturing such a multilayer PSA assembly.Type: GrantFiled: November 15, 2013Date of Patent: March 8, 2022Assignee: 3M Innovative Properties CompanyInventors: Doreen Eckhardt, Regina Sikora, Jan U. Wieneke, Jan D. Forster, Kerstin Unverhau, Frank Kuester
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Publication number: 20210239090Abstract: A multilayer protective tape for rotor blades of wind energy turbines is provided herein. The protective tape comprising a protective top layer comprising a polymer film, and an adhesive bottom layer. The top layer having a continuous surface (S) that is outwardly curved or outwardly trapezoidal such that the tape has a cross-sectional profile having an inner section between first and second edge lateral sections. The inner section comprises up to 30% of the width of the tape and has a thickness (Ti), while the first and second edge lateral sections have a thickness of T1 and T2, respectively, wherein Ti greater than each of T1 or T2, and the thickness (T1 or T2) of at least one edged lateral section is at most 600 ?m and the thickness of the inner section (Ti) is at least 330 ?m. Also provided is a method for applying the tape to rotor blades and a rotor blade protected by said protective tape.Type: ApplicationFiled: April 12, 2021Publication date: August 5, 2021Inventors: Steffen Traser, Bernd Kuehneweg, Christian Claus, Jan D. Forster
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Patent number: 10995729Abstract: A multilayer protective tape for rotor blades of wind energy turbines is provided herein. The protective tape comprising a protective top layer comprising a polymer film, and an adhesive bottom layer. The top layer having a continuous surface (S) that is outwardly curved or outwardly trapezoidal such that the tape has a cross-sectional profile having an inner section between first and second edge lateral sections. The inner section comprises up to 30% of the width of the tape and has a thickness (Ti), while the first and second edge lateral sections have a thickness of T1 and T2, respectively, wherein Ti greater than each of T1 or T2, and the thickness (T1 or T2) of at least one edged lateral section is at most 600 ?m and the thickness of the inner section (Ti) is at least 330 ?m. Also provided is a method for applying the tape to rotor blades and a rotor blade protected by said protective tape.Type: GrantFiled: May 31, 2019Date of Patent: May 4, 2021Assignee: 3M Innovative Properties CompanyInventors: Steffen Traser, Bernd Kuehneweg, Christian Claus, Jan D. Forster
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Publication number: 20190285048Abstract: A multilayer protective tape for rotor blades of wind energy turbines is provided herein. The protective tape comprising a protective top layer comprising a polymer film, and an adhesive bottom layer. The top layer having a continuous surface (S) that is outwardly curved or outwardly trapezoidal such that the tape has a cross-sectional profile having an inner section between first and second edge lateral sections. The inner section comprises up to 30% of the width of the tape and has a thickness (Ti), while the first and second edge lateral sections have a thickness of T1 and T2, respectively, wherein Ti greater than each of T1 or T2, and the thickness (T1 or T2) of at least one edged lateral section is at most 600 ?m and the thickness of the inner section (Ti) is at least 330 ?m. Also provided is a method for applying the tape to rotor blades and a rotor blade protected by said protective tape.Type: ApplicationFiled: May 31, 2019Publication date: September 19, 2019Inventors: Steffen Traser, Bernd Kuehneweg, Christian Claus, Jan D. Forster
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Publication number: 20190194501Abstract: The present disclosure relates to a method of adhering a first part to a second part, wherein the first part and the second part are used for outdoor applications and comprise a thermoplastic or a thermosetting organic polymer. The present disclosure is also directed to a composite assembly comprising: a) a first part and a second part used for outdoor applications and comprising a thermoplastic or a thermosetting organic polymer; and b) a multilayer pressure sensitive adhesive foam tape as described in the present disclosure, wherein the first pressure sensitive adhesive layer is adhered to the first part, and the second pressure sensitive adhesive layer is adhered to the second part.Type: ApplicationFiled: October 13, 2016Publication date: June 27, 2019Inventors: Doreen Eckhardt, Claudia Torre, Regina Sikora, Kerstin Unverhau, Jan U. Wieneke, Frank Kuester, Jan Heimink, Jan D. Forster, Bettina Radek, Steven D. Bray, Zhong Chen
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Patent number: 9914854Abstract: The invention relates to a continuous self-metered process of forming a multilayer film comprising at least two superimposed polymer layers comprising the steps of: (i) providing a substrate (5); (ii) providing two or more coating knives (2, 3, 4) which are offset, independently from each other, from said substrate (5) and/or from an adjacent coating knife to form at least one substrate gap (9) relative to the surface of the substrate (5) and at least one outlet gap (10) relative to the surface of an adjacent coating knife; (iii) moving the substrate (5) relative to the coating knives (2, 3, 4) in a downstream direction (6), (iv) providing curable liquid precursors of the polymers (I, II, III) to the upstream side of the coating knives (2, 3, 4) thereby coating the two or more precursors (I, II, III) through the respective gaps (9, 10) as superimposed layers (12, 13, 14) onto the substrate (5); (v) optionally providing one or more solid films (1 1) and applying these essentially simultaneously with the formatType: GrantFiled: July 25, 2012Date of Patent: March 13, 2018Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Steffen Traser, Jan D. Forster, Bernd Kuehneweg
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Publication number: 20170283659Abstract: A multilayer protective tape (1) for rotor blades of wind energy turbines said tape (1) having a protective top layer (2) comprising a polymer film and an adhesive bottom layer (3), wherein the top layer (2) has a continuous surface (S) that is outwardly curved or outwardly trapezoidal surface such that the tape (1) has a cross-sectional profile having an inner section between two lateral sections and wherein the inner section has a thickness (T1) made up by the thickness of the top layer (2) and adhesive bottom layer (3) that is greater than the thickness of at least one of the lateral sections (T1,T2) made up by the thickness of the top layer (2) and adhesive bottom layer (3) and wherein the thickness (T1 or T2) of at least one lateral section is at most 600 ?m and the thickness of the inner section (T1) is at least 330 ?m. Also provided are processes for making profiled tapes and methods for applying the tapes to rotor blades and blades containing protective tapes.Type: ApplicationFiled: June 22, 2017Publication date: October 5, 2017Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: STEFFEN TRASER, BERND KUEHNEWEG, CHRISTIAN CLAUS, JAN D. FORSTER
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Patent number: 9718992Abstract: A multilayer protective tape for rotor blades of wind energy turbines said tape having a protective top layer comprising a polymer film and an adhesive bottom layer, wherein the top layer has a continuous surface (S) that is outwardly curved or outwardly trapezoidal surface such that the tape has a cross-sectional profile having an inner section between two lateral sections and wherein the inner section has a thickness (Ti) made up by the thickness of the top layer and adhesive bottom layer that is greater than the thickness of at least one of the lateral sections (T1,T2) made up by the thickness of the top layer and adhesive bottom layer and wherein the thickness (T1 or T2) of at least one lateral section is at most 600 ?m and the thickness of the inner section (Ti) is at least 330 ?m. Also provided are processes for making profiled tapes and methods for applying the tapes to rotor blades and blades containing protective tapes.Type: GrantFiled: July 26, 2012Date of Patent: August 1, 2017Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Steffen Traser, Bernd Kuehneweg, Christian Claus, Jan D. Forster
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Publication number: 20170130101Abstract: The present disclosure relates to a pressure sensitive adhesive assembly suitable for bonding to a substrate provided 1-1 with an uneven surface, wherein the pressure sensitive adhesive assembly comprises a polymeric foam layer comprising a polymeric N base material and a particulate filler material comprising a thermoplastic material, and wherein the polymeric foam layer has a complex viscosity comprised between 2,000 Pa.s to 80,000 Pa.s, when measured at 120C according to the test method described in the experimental section. The present disclosure is also directed to a method of applying a pressure sensitive adhesive assembly to a substrate provided with an uneven surface, and uses thereof.Type: ApplicationFiled: July 9, 2015Publication date: May 11, 2017Inventors: Jan Heimink, Kerstin Unverhau, Jan D. Forster
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Publication number: 20160326404Abstract: The present invention is directed to a multilayer pressure sensitive adhesive (PSA) film, having a first pressure sensitive adhesive layer and at least an opposing layer, wherein the first pressure sensitive adhesive layer comprises a pressure-sensitive adhesive composition with a (meth)acrylic-based elastomeric material comprising a reaction product of polymerizable material comprising: (a) a first monomer which is an alkyl (meth)acrylate ester of a primary alcohol R1—OH, the alkyl (meth)acrylate ester being of Formula (I) CH2?C(R2)—(CO)—OR1?? (I) wherein R1 is an alkyl having 14 to 25 carbon atoms and the primary alcohol R1—OH has an iso index equal to at least 2 but no greater than 4; R2 is hydrogen or methyl; and (b) a second monomer having an ethylenically unsaturated group; wherein the at least one opposing layer comprises at least one filler material. The invention is also directed to a method for the manufacturing of such a multilayer PSA film and its use.Type: ApplicationFiled: July 19, 2016Publication date: November 10, 2016Inventors: Steffen Traser, Jan D. Forster, Christiane Strerath, Jayshree Seth, Arlin L. Weikel, Maureen A. Kavanagh, Jason D. Clapper, Kevin M. Lewandowski, Zhong Chen
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Publication number: 20160083628Abstract: The present disclosure relates to a pressure sensitive adhesive assembly comprising at least a first pressure sensitive adhesive layer comprising a hollow non-porous particulate filler material, wherein the surface of the hollow non-porous particulate filler material is provided with a hydrophobic surface modification. The present disclosure also relates to a method of manufacturing such a pressure sensitive adhesive assembly.Type: ApplicationFiled: May 13, 2014Publication date: March 24, 2016Inventors: Jan Heimink, Kerstin Unverhau, Jan D. Forster, Jan U. Wieneke, Frank Kuester, Siegfried R. Goeb, Doreen Eckhardt, Regina Sikora, Ruchi Pandey, Suresh S. Iyer
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Patent number: 9260632Abstract: A multilayer pressure sensitive adhesive (PSA) film having a first pressure sensitive adhesive layer for bonding glass substrates and at least a second opposing layer, the first pressure sensitive adhesive layer being a polymerization reaction product of a precursor comprising a monomer or a partially prepolymerized monomer, having a curable ethylenically unsaturated group, whereas the precursor further comprises an oligomeric organofunctional silicone having at least 2 Si atoms, in particular 2 to 10 Si atoms, wherein the monomer having a curable ethylenically unsaturated further has a coupling group with a Zerewitinow-active H-atom and wherein the oligomeric organofunctional silicone has at least one coupling group which is reactive to the coupling group of the monomer having a curable ethylenically unsaturated group, or wherein the oligomeric organofunctional silicone has at least one coupling group with a Zerewitinow-active H-atom and wherein the monomer having a curable ethylenically unstaurated furthType: GrantFiled: October 5, 2012Date of Patent: February 16, 2016Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Siegfried R. Goeb, Silke D. Mechernich, Steffen Traser, Claudia Torre, Jan D. Forster
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Publication number: 20150307751Abstract: The present disclosure is directed to a multilayer pressure sensitive adhesive (PSA) assembly, comprising at least one pressure sensitive adhesive layer and a polymeric foam layer, wherein the pressure sensitive adhesive layer comprises a pressure-sensitive adhesive composition comprising a reaction product of a polymerizable material comprising: a) 2-propylheptyl acrylate as a first monomer; and optionally b) a second monomer having an ethylenically unsaturated group. The present disclosure is also directed to a method of manufacturing such a multilayer PSA assembly.Type: ApplicationFiled: November 15, 2013Publication date: October 29, 2015Inventors: Doreen Eckhardt, Regina Sikora, Jan U. Wieneke, Jan D. Forster, Kerstin Unverhau, Frank Kuester
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Patent number: 8916020Abstract: The invention provides an assembly comprising at least one substrate being bonded to a structural adhesive wherein the structural adhesive is obtained by curing a precursor comprising a cross-linkable polymer, wherein a surface area of the substrate bonded to the structural adhesive comprises at least one metal, said surface area being treated with a liquid activator.Type: GrantFiled: November 26, 2008Date of Patent: December 23, 2014Assignee: 3M Innovative Properties CompanyInventors: Jan D. Forster, Dirk Hasenberg, Siegfried R. Goeb, Christopher J. Campbell
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Publication number: 20140367040Abstract: The present invention is directed to a multilayer pressure sensitive adhesive (PSA) film, having a first pressure sensitive adhesive layer and at least an opposing layer, wherein the first pressure sensitive adhesive layer comprises a pressure-sensitive adhesive composition with a (meth)acrylic-based elastomeric material comprising a reaction product of polymerizable material comprising: (a) a first monomer which is an alkyl (meth)acrylate ester of a primary alcohol R1—OH, the alkyl (meth)acrylate ester being of Formula (I) CH2?C(R2)—(CO)—OR1 (I) wherein R1 is an alkyl having 14 to 25 carbon atoms and the primary alcohol R1—OH has an iso index equal to at least 2 but no greater than 4; R2 is hydrogen or methyl; and (b) a second monomer having an ethylenically unsaturated group; wherein the at least one opposing layer comprises at least one filler material. The invention is also directed to a method for the manufacturing of such a multilayer PSA film and its use.Type: ApplicationFiled: September 24, 2012Publication date: December 18, 2014Inventors: Steffen Traser, Jan D. Forster, Christiane Strerath, Jayshree Seth, Arlin L. Weikel, Maureen A. Kavanagh, Jason D. Clapper, Kevin M. Lewandowski, Zhong Chen
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Publication number: 20140255679Abstract: A multilayer pressure sensitive adhesive (PSA) film having a first pressure sensitive adhesive layer for bonding glass substrates and at least a second opposing layer, the first pressure sensitive adhesive layer being a polymerization reaction product of a precursor comprising a monomer or a partially prepolymerized monomer, in particular a (meth)acrylate based monomer, having a curable ethylenically unsaturated group, whereas the precursor further comprises an oligomeric organofunctional silane having at least 2 Si atoms, in particular 2 to 10 Si atoms, wherein the monomer having a curable ethylenically unsaturated further has a coupling group with a Zerewitinow-active H-atom and wherein the oligomeric organofunctional silane has at least one coupling group which is reactive to the coupling group of the monomer having a curable ethylenically unsaturated group, or wherein the oligomeric organofunctional silane has at least one coupling group with a Zerewitinow-active H-atom and wherein the monomer having a cuType: ApplicationFiled: October 5, 2012Publication date: September 11, 2014Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Siegfried R. Goeb, Silke D. Mechernich, Steffen Traser, Claudia Torre, Jan D. Forster
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Publication number: 20140234562Abstract: The present invention is directed to a multilayer pressure sensitive adhesive (PSA) film, having a first pressure sensitive adhesive layer and at least one opposing layer, characterized in that the first pressure sensitive adhesive layer comprises a pressure-sensitive adhesive composition comprising (co)polymers of: a) (meth)acrylate ester of 2-alkyl alkanols wherein the molar carbon number average of said 2-alkyl alkanols is 12 to 32; and optionally b) (meth)acrylate esters of C1-12 alkanols; wherein the molar carbon number average of the alkanols of the a) and b) (meth)acrylic acid esters is 12 to 32; wherein the at least one opposing layer comprises at least one filler material selected from the group of filler particles, wherein the filler particles are expanded perlite. The invention is also directed to a method for the manufacturing of such a multilayer PSA film and its use.Type: ApplicationFiled: September 25, 2012Publication date: August 21, 2014Applicant: 3M INNOVATION PROPERTIES COMPNAYInventors: Steffen Traser, Jan D. Forster, Maureen A. Kavanagh, Arlin L. Weikel, Jayshree Seth
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Publication number: 20140193598Abstract: A multilayer pressure sensitive adhesive (PSA) film having a first acrylic pressure sensitive adhesive layer and an opposing second acrylic pressure sensitive adhesive layer, wherein the first pressure sensitive adhesive layer has a glass transition temperature Tg?0° C. and a content of a strongly polar acrylate of 7.5 to 15 wt.-% in its precursor, and the second pressure sensitive adhesive layer has a Tg?0° C. and contains 0.5 to 12 wt.-% of a strongly polar acrylate in its precursor, wherein the content of the strongly polar acrylate of the precursor of the first pressure sensitive adhesive layer exceeds the content of the strongly polar acrylate of the precursor of the second pressure sensitive adhesive layer by at least 2 wt.-% and wherein the Tg of the first pressure sensitive adhesive layer exceeds the Tg of the second pressure sensitive adhesive layer by at least 5° C.Type: ApplicationFiled: August 8, 2012Publication date: July 10, 2014Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Steffen Traser, Jan D. Forster, Bernd Kuehneweg, Tobias Pick