Patents by Inventor Hendrik Grupp
Hendrik Grupp 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: 11872292Abstract: The invention relates to a curable composition comprising a resin matrix, the resin matrix comprising cationically curable components (A) and radiation curable components (B), a curing system, the curing system comprising a starter (A-S) suitable for curing the cationically curable components (A) and a photo-initiator (B-I), the curable composition being provided as a Base Part and Catalyst Part being separated before use, wherein the Base Part comprises components (A) and (B) and wherein the Catalyst Part comprises components (A-S) and (B-I). The composition can be used for taking a dental impression including the subgingival parts.Type: GrantFiled: September 12, 2017Date of Patent: January 16, 2024Assignee: 3M Innovative Properties CompanyInventors: Joachim W. Zech, Hendrik Grupp
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Patent number: 11597830Abstract: The invention relates to a radiation curable composition for additive-manufacturing processes, the composition comprising (meth)acrylate component(s) not comprising an urethane moiety having a molecular weight Mw of at least 1,000 as Component A1, photo initiator as Component B, red, yellow or orange dye or combination thereof as Component C, blue dye having a light absorption band in the range of 350 to 420 nm as Component D, and optionally stabilizer as Component E. The invention further relates to a process of producing an elastomeric 3-dim article from the radiation curable composition in an additive-manufacturing process and the obtained elastomeric 3-dim article.Type: GrantFiled: May 21, 2018Date of Patent: March 7, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Joachim Zech, Hendrik Grupp, Malte Korten, Ralf Paehl, Dietmar Blees, Gioacchino Raia
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Patent number: 10952933Abstract: The invention relates to a kit of parts comprising a Base Paste (B) and a Catalyst Paste (C), Base Paste (B) comprising a cationically hardenable component, Catalyst Paste (C) comprising a starter component suitable to contribute to the hardening of the cationically hardenable compound, the composition obtained when combining the compositions of Base Paste (B) and Catalyst Paste (C) comprising in addition a porous water-adsorbing component and water, the porous water-adsorbing component being selected from molecular sieves, zeolites, silica gel and mixtures thereof, wherein either the porous water-adsorbing component is present in Base Paste (B) and the water is present in Catalyst Paste (C), or the water-adsorbing component is present in Catalyst Paste (C) and the water is present in Base Paste (B).Type: GrantFiled: June 30, 2016Date of Patent: March 23, 2021Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Joachim Zech, Hendrik Grupp, Christoph Schulte, Andreas R. Maurer, Peter U. Osswald
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Patent number: 10751262Abstract: The invention relates to a curable dental composition comprising a cationically hardenable compound (A) comprising at least two aziridine moieties, a starter (B) being suitable to cure the hardenable compound (A), polymeric particles as filler component (C), the polymeric particles having a maximum particle size of 150 ?m or below and the component(s) the polymeric particles are made of being based on fluoropolymers comprising more than 99% monomer repeating units of tetra fluoro ethylene. The invention also relates to the use of such composition for producing a dental impression material or a dental retraction material.Type: GrantFiled: December 8, 2015Date of Patent: August 25, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Andreas R. Maurer, Hendrik Grupp, Joachim W. Zech, Arne Thaler, Kai H. Lochhaas, Klaus Hintzer, Christoph Schulte
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Patent number: 10729622Abstract: A process for taking a dental impression and/or conducting a dental retraction. The process includes the steps of: (a) providing a composition (A) having the consistency (a1), composition (A) including curable components, and a catalyst suitable to initiate or catalyze the curing of the curable components, composition (A) being contained in a device, (b) applying a portion (I) of composition (A) with a consistency (a2) into the sulcus of a tooth, (c) applying a portion (II) of composition (A) with a consistency (a1) in contact with composition (A) applied in step (b), (d) removing portion (I) together with portion (II) of composition (A) from the surface of the tooth, consistency (a2) being higher than consistency (a1).Type: GrantFiled: May 19, 2016Date of Patent: August 4, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Andreas R. Maurer, Joachim W. Zech, Christoph Schulte, Peter U. Osswald, Rudolf Schmid, Hendrik Grupp, Marc Peuker, Helmut Pauser, Manfred Harre, Andreas J. Boehm
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Publication number: 20200131356Abstract: The invention relates to a radiation curable composition for additive-manufacturing processes, the composition comprising (meth)acrylate component(s) not comprising an urethane moiety having a molecular weight Mw of at least 1,000 as Component A1, photo initiator as Component B, red, yellow or orange dye or combination thereof as Component C, blue dye having a light absorption band in the range of 350 to 420 nm as Component D, and optionally stabilizer as Component E. The invention further relates to a process of producing an elastomeric 3-dim article from the radiation curable composition in an additive-manufacturing process and the obtained elastomeric 3-dim article.Type: ApplicationFiled: May 21, 2018Publication date: April 30, 2020Inventors: Joachim Zech, Hendrik Grupp, Malte Korten, Ralf Paehl, Dietmar Blees, Gioacchino Raia
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Publication number: 20190380917Abstract: The invention relates to a curable composition comprising a resin matrix, the resin matrix comprising cationically curable components (A) and radiation curable components (B), a curing system, the curing system comprising a starter (A-S) suitable for curing the cationically curable components (A) and a photo-initiator (B-I), the curable composition being provided as a Base Part and Catalyst Part being separated before use, wherein the Base Part comprises components (A) and (B) and wherein the Catalyst Part comprises components (A-S) and (B-I). The composition can be used for taking a dental impression including the subgingival parts.Type: ApplicationFiled: September 12, 2017Publication date: December 19, 2019Inventors: Joachim W. Zech, Hendrik Grupp
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Publication number: 20180221248Abstract: The invention is directed to a process for taking a dental impression and/or conducting a dental retraction, the process comprising the steps of (a) providing a composition (A) having the consistency (a1), composition (A) comprising curable components, and a catalyst suitable to initiate or catalyze the curing of the curable components, composition (A) being contained in a device, (b) applying a portion (I) of composition (A) with a consistency (a2) into the sulcus of a tooth, (c) applying a portion (II) of composition (A) with a consistency (a1) in contact with composition (A) applied in step (b), (d) removing portion (I) together with portion (II) of composition (A) from the surface of the tooth, consistency (a2) being higher than consistency (a1).Type: ApplicationFiled: May 19, 2016Publication date: August 9, 2018Inventors: Andreas R. Maurer, Joachim W. Zech, Christoph Schulte, Peter U. Osswald, Rudolf Schmid, Hendrik Grupp, Marc Peuker, Helmut Pauser, Manfred Harre, Andreas J. Boehm
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Publication number: 20180200156Abstract: The invention relates to a kit of parts comprising a Base Paste (B) and a Catalyst Paste (C), Base Paste (B) comprising a cationically hardenable component, Catalyst Paste (C) comprising a starter component suitable to contribute to the hardening of the cationically hardenable compound, the composition obtained when combining the compositions of Base Paste (B) and Catalyst Paste (C) comprising in addition a porous water-adsorbing component and water, the porous water-adsorbing component being selected from molecular sieves, zeolites, silica gel and mixtures thereof, wherein either the porous water-adsorbing component is present in Base Paste (B) and the water is present in Catalyst Paste (C), or the water-adsorbing component is present in Catalyst Paste (C) and the water is present in Base Paste (B).Type: ApplicationFiled: June 30, 2016Publication date: July 19, 2018Inventors: Joachim Zech, Hendrik Grupp, Christoph Schulte, Andreas R. Maurer, Peter U. Osswald
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Publication number: 20170326038Abstract: The invention relates to a curable dental composition comprising a cationically hardenable compound (A) comprising at least two aziridine moieties, a starter (B) being suitable to cure the hardenable compound (A), polymeric particles as filler component (C), the polymeric particles having a maximum particle size of 150 ?m or below and the component(s) the polymeric particles are made of being based on fluoropolymers comprising more than 99% monomer repeating units of tetra fluoro ethylene. The invention also relates to the use of such composition for producing a dental impression material or a dental retraction material.Type: ApplicationFiled: December 8, 2015Publication date: November 16, 2017Inventors: Andreas R. Maurer, Hendrik Grupp, Joachim W. Zech, Arne Thaler, Kai H. Lochhaas, Klaus Hintzer, Christoph Schulte
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Patent number: 9216141Abstract: The present disclosure relates to a curable composition to be prepared by mixing a base paste and a catalyst paste, the base paste comprising (A) a hardenable compound comprising at least two aziridine moieties, and (B) a metal containing component containing anions and/or ligands, the metal containing component being present in an amount of about 0.1 to about 5 wt.-%, the metal being selected from Zn, Cu, Co, Ni, Ag and combinations thereof, the anions or ligands being selected from oxide, hydroxyl, (hydro)carbonate, sulphate, nitrate, halide, lactate, benzoate, wolframate, linear or branched aliphatic carboxylic acid anions, ligands having not more than two coordinating moieties and combinations thereof, the catalyst paste comprising (C) a Lewis acid, the composition optionally further comprising (D) a retarder, (E) filler and (F) additive(s). The present disclosure also relates to a kit of parts, the use of a metal containing component and a method of taking a dental impression.Type: GrantFiled: August 23, 2011Date of Patent: December 22, 2015Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Joachim W. Zech, Hendrik Grupp, Thomas Klettke
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Publication number: 20150079543Abstract: The invention relates to a hardenable dental composition comprising component (A) comprising a cationically hardenable compound, component (B) comprising an initiator being able to initiate the hardening reaction of the cationically hardenable compound, and component (C) comprising a filler, wherein the filler comprises a filler body and a filler surface, the filler surface comprising side groups with polar moieties. The invention also relates to a process of producing the dental composition, to the use of the dental composition as dental impression material and to a method of taking an impression of dental tissue.Type: ApplicationFiled: November 19, 2014Publication date: March 19, 2015Inventors: JOACHIM W. ZECH, THOMAS KLETTKE, SABASTIAN ZELLER, BERND KUPPERMANN, HENDRIK GRUPP
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Patent number: 8962708Abstract: The invention relates to a curable dental composition comprising a curable polyether group containing polymer as component (A), an initiator capable of initiating a curing reaction of component (A) as component (B) and a certain F-containing compound as component (C). The invention also relates to a method of production and use of the curable dental composition or a respective kit of parts for the preparation of or as impression material or for the preparation of crowns and bridges.Type: GrantFiled: June 9, 2010Date of Patent: February 24, 2015Assignee: 3M Innovative Properties CompanyInventors: Andreas R. Maurer, Christoph Schulte, Peter U. Osswald, Joachim W. Zech, Hendrik Grupp, Peter Bissinger
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Patent number: 8921475Abstract: The invention relates to a hardenable dental composition comprising component (A) comprising a cationically hardenable compound, component (B) comprising an initiator being able to initiate the hardening reaction of the cationically hardenable compound, and component (C) comprising a filler, wherein the filler comprises a filler body and a filler surface, the filler surface comprising side groups with polar moieties. The invention also relates to a process of producing the dental composition, to the use of the dental composition as dental impression material and to a method of taking an impression of dental tissue.Type: GrantFiled: July 19, 2010Date of Patent: December 30, 2014Assignee: 3M Innovative Properties CompanyInventors: Joachim W. Zech, Thomas Klettke, Sebastian Zeller, Bernd Kuppermann, Hendrik Grupp
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Publication number: 20130157226Abstract: The present disclosure relates to a curable composition to be prepared by mixing a base paste and a catalyst paste, the base paste comprising (A) a hardenable compound comprising at least two aziridine moieties, and (B) a metal containing component containing anions and/or ligands, the metal containing component being present in an amount of about 0.1 to about 5 wt.-%, the metal being selected from Zn, Cu, Co, Ni, Ag and combinations thereof, the anions or ligands being selected from oxide, hydroxyl, (hydro)carbonate, sulphate, nitrate, halide, lactate, benzoate, wolframate, linear or branched aliphatic carboxylic acid anions, ligands having not more than two coordinating moieties and combinations thereof, the catalyst paste comprising (C) a Lewis acid, the composition optionally further comprising (D) a retarder, (E) filler and (F) additive(s).Type: ApplicationFiled: August 23, 2011Publication date: June 20, 2013Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Joachim W. Zech, Hendrik Grupp, Thomas Klettke
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Publication number: 20120187017Abstract: The invention relates to a hardenable dental composition comprising component (A) comprising a cationically hardenable compound, component (B) comprising an initiator being able to initiate the hardening reaction of the cationically hardenable compound, and component (C) comprising a filler, wherein the filler comprises a filler body and a filler surface, the filler surface comprising side groups with polar moieties. The invention also relates to a process of producing the dental composition, to the use of the dental composition as dental impression material and to a method of taking an impression of dental tissue.Type: ApplicationFiled: July 19, 2010Publication date: July 26, 2012Inventors: Joachim W. Zech, Thomas Klettke, Sebastian Zeller, Bernd Kuppermann, Hendrik Grupp
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Publication number: 20120077900Abstract: The invention relates to a curable dental composition comprising a curable polyether group containing polymer as component (A), an initiator capable of initiating a curing reaction of component (A) as component (B) and a certain F-containing compound as component (C). The invention also relates to a method of production and use of the curable dental composition or a respective kit of parts for the preparation of or as impression material or for the preparation of crowns and bridges.Type: ApplicationFiled: June 9, 2010Publication date: March 29, 2012Inventors: Andreas R. Maurer, Christoph Schulte, Peter U. Osswald, Joachim W. Zech, Hendrik Grupp, Peter Bissinger
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Publication number: 20050176844Abstract: The present invention is directed to dental compositions that can be used as adhesives for bonding a dental material to a dental structure surface and/or as a dental restorative material. The dental composition is preferably applied to a dental structure surface under conditions effective to etch the dental structure surface.Type: ApplicationFiled: August 11, 2004Publication date: August 11, 2005Inventors: Steven Aasen, Ahmed Abuelyaman, David Cinader, Hendrik Grupp, Miriam Hansen, Thomas Klettke, Guenther Lechner, Kevin Lewandowski, Thomas Luchterhandt, Sumita Mitra, Prabhakara Rao, Victoria Russell, Michael Wendland