Patents by Inventor Kai Rist
Kai Rist 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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Publication number: 20230413464Abstract: A circuit housing (100) for a wearable intraoral application, including an inner layer (105-1) of a first material (101-1) for waterproof enclosure of an electronic circuit (103); and an outer layer (105-2) of a second material (101-2) for spatially fitting the circuit housing to a set of teeth (111), at least partially covering the first material (101-1).Type: ApplicationFiled: May 30, 2023Publication date: December 21, 2023Inventors: Alexander Skawran, Marvin Kuhn, Kai Rist
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Publication number: 20230357556Abstract: A polymerizable composition, which includes (a) at least one radically polymerizable oligomer, (b) at least one radically polymerizable monomer and (c) at least one initiator for the radical polymerization, characterized in that the radically polymerizable oligomer (a) is selected from the group consisting of aliphatic urethane (meth)acrylate oligomers, epoxy (meth)acrylate oligomers and polyether urethane (meth)acrylate oligomers, and the radically polymerizable monomer (b) is polyfunctional.Type: ApplicationFiled: July 19, 2023Publication date: November 9, 2023Inventor: Kai Rist
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Patent number: 11753537Abstract: The present invention relates to a polymerizable composition, which comprises (a) at least one radically polymerizable oligomer, (b) at least one radically polymerizable monomer and (c) at least one initiator for the radical polymerization, characterized in that the radically polymerizable oligomer (a) is selected from the group consisting of aliphatic urethane (meth)acrylate oligomers, epoxy (meth)acrylate oligomers and polyether urethane (meth)acrylate oligomers, and the radically polymerizable monomer (b) is polyfunctional.Type: GrantFiled: December 6, 2019Date of Patent: September 12, 2023Assignee: Ivoclar Vivadent AGInventor: Kai Rist
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Patent number: 11697696Abstract: The present invention relates to a polymerizable composition, which comprises (a) at least one radically polymerizable compound and (b) at least one initiator for the radical polymerization, wherein the composition furthermore comprises (c) at least one UV absorber and (d) at least one optical brightener and comprises at least one radically polymerizable oligomer and at least one radically polymerizable, polyfunctional monomer as the at least one radically polymerizable compound (a).Type: GrantFiled: December 6, 2019Date of Patent: July 11, 2023Assignee: Ivoclar Vivadent AGInventor: Kai Rist
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Patent number: 11596582Abstract: The present invention relates to particles comprising a core, in particular a magnetic core, and a first coating of a first shell material, wherein a second coating of a second shell material is applied to the surface of the first coating facing away from the core, the second shell material is different from the first shell material and has a higher refractive index than the first shell material.Type: GrantFiled: August 16, 2019Date of Patent: March 7, 2023Assignee: Ivoclar Vivadent AGInventors: Kai Rist, Annette Schmidt, Ahmad Shaaban
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Publication number: 20220370300Abstract: Radically polymerizable dental material, which contains at least one ABA or AB block copolymer, preferably at least one monofunctional, radically polymerizable monomer (a) and preferably at least one radically polymerizable urethane di(meth)acrylate telechel (b).Type: ApplicationFiled: May 4, 2022Publication date: November 24, 2022Inventors: Norbert Moszner, Jörg Angermann, Iris Lamparth, Yohann Catel, Kai Rist
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Publication number: 20210138729Abstract: The present invention relates to a method for building a shaped body by layer-wise solidification of photopolymerizable building material by means of stereolithography characterized in that the positioning of a blade with respect to a vat bottom is adjusted in such a manner that the resulting predetermined, uniform layer thickness is higher than the predefined layer thickness to be set by lowering a building platform, but does not exceed the predefined layer thickness by more than 50%.Type: ApplicationFiled: October 13, 2020Publication date: May 13, 2021Inventors: Hendrik John, Jörg Ebert, KaI Rist, Sonja Baumgartner, Malte Hartmann
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Patent number: 10736820Abstract: Radically polymerizable dental material, which contains at least one sulphonic acid ester of Formula 1: in which A is H, CN, an aromatic, cycloaliphatic, linear or branched aliphatic C1-C30-hydrocarbon radical or a combination thereof; X is COO— or —CON(R1)— or is absent; B is an aromatic, cycloaliphatic, linear or branched aliphatic C1-C30-hydrocarbon radical, or a combination thereof; R1 is hydrogen or an aromatic, cycloaliphatic, linear or branched aliphatic C1-C10-hydrocarbon radical; m is an integer from 1 to 6, n is an integer from 1 to 6 and p is an integer from 1 to 6; wherein m and p cannot simultaneously be greater than 1. The compounds of Formula 1 are active as chain transfer agents in radical polymerization.Type: GrantFiled: May 2, 2016Date of Patent: August 11, 2020Assignees: Ivoclar Vivadent AG, Technicshe Universität WienInventors: Norbert Moszner, Iris Lamparth, Urs Karl Fischer, Kai Rist, Peter Burtscher, Robert Liska, Christian Gorsche, Konstanze Seidler
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Publication number: 20200199346Abstract: The present invention relates to a polymerizable composition, which comprises (a) at least one radically polymerizable oligomer, (b) at least one radically polymerizable monomer and (c) at least one initiator for the radical polymerization, characterized in that the radically polymerizable oligomer (a) is selected from the group consisting of aliphatic urethane (meth)acrylate oligomers, epoxy (meth)acrylate oligomers and polyether urethane (meth)acrylate oligomers, and the radically polymerizable monomer (b) is polyfunctional.Type: ApplicationFiled: December 6, 2019Publication date: June 25, 2020Inventor: Kai Rist
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Publication number: 20200199268Abstract: The present invention relates to a polymerizable composition, which comprises (a) at least one radically polymerizable compound and (b) at least one initiator for the radical polymerization, wherein the composition furthermore comprises (c) at least one UV absorber and (d) at least one optical brightener and comprises at least one radically polymerizable oligomer and at least one radically polymerizable, polyfunctional monomer as the at least one radically polymerizable compound (a).Type: ApplicationFiled: December 6, 2019Publication date: June 25, 2020Inventor: Kai Rist
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Patent number: 10667993Abstract: The invention relates to a polymerizable composition which comprises a thermolabile polymerizable compound of Formula I: A-[X-(T-X-Sp-X)p-T-X-Q-(Z)n]m?? Formula I, wherein T represents a thermolabile Diels-Alder or hetero-Diels-Alder group of the Formula The invention also relates to the use of the polymerizable composition according to the present invention and the compounds of Formula I according to the present invention as polymerization resin or for the preparation of polymerization resins and polymerizates such as adhesives, composites, stereolithographic materials, shaped parts, duromers and mounting and fixing elements, and as dental material and for the preparation of dental materials such as adhesives, cements and filling composites.Type: GrantFiled: October 11, 2016Date of Patent: June 2, 2020Assignees: Ivoclar Vivadent AG, Karlsruher Institute Für TechnologieInventors: Norbert Moszner, Iris Lamparth, Kai Rist, Christoph Barner-Kowollik, Alexander Schenzel, Marcel Langer
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Publication number: 20200078271Abstract: The present invention relates to particles comprising a core, in particular a magnetic core, and a first coating of a first shell material, wherein a second coating of a second shell material is applied to the surface of the first coating facing away from the core, the second shell material is different from the first shell material and has a higher refractive index than the first shell material.Type: ApplicationFiled: August 16, 2019Publication date: March 12, 2020Inventors: Kai Rist, Annette Schmidt, Ahmed Shaaban
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Patent number: 10213367Abstract: Radically polymerizable dental material, which contains at least one compound of Formula I: and at least one thermolabile radically polymerizable compound and/or at least one photolabile radically polymerizable compound. The materials are characterized by debonding-on-demand properties.Type: GrantFiled: July 9, 2015Date of Patent: February 26, 2019Assignee: Ivoclar Vivadent AGInventors: Norbert Moszner, Kai Rist, Iris Lamparth, Peter Burtscher, Christian Gorsche, Robert Liska
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Publication number: 20180369075Abstract: Radically polymerizable dental material, which contains at least one sulphonic acid ester of Formula 1: in which A is H, CN, an aromatic, cycloaliphatic, linear or branched aliphatic C1-C30-hydrocarbon radical or a combination thereof; X is COO— or —CON(R1)— or is absent; B is an aromatic, cycloaliphatic, linear or branched aliphatic C1-C30-hydrocarbon radical, or a combination thereof; R1 is hydrogen or an aromatic, cycloaliphatic, linear or branched aliphatic C1-C10-hydrocarbon radical; m is an integer from 1 to 6, n is an integer from 1 to 6 and p is an integer from 1 to 6; wherein m and p cannot simultaneously be greater than 1. The compounds of Formula 1 are active as chain transfer agents in radical polymerization.Type: ApplicationFiled: May 2, 2016Publication date: December 27, 2018Applicant: Technische Universität WienInventors: Norbert Moszner, Iris Lamparth, Urs Karl Fischer, Kai Rist, Peter Burtscher, Robert Liska, Christian Gorsche, Konstanze Seidler
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Publication number: 20180200155Abstract: The invention relates to a polymerizable composition which comprises a thermolabile polymerizable compound of Formula I: A-[X-(T-X-Sp-X)p-T-X-Q-(Z)n]m?? Formula I, wherein T represents a thermolabile Diels-Alder or hetero-Diels-Alder group of the Formula The invention also relates to the use of the polymerizable composition according to the present invention and the compounds of Formula I according to the present invention as polymerization resin or for the preparation of polymerization resins and polymerizates such as adhesives, composites, stereolithographic materials, shaped parts, duromers and mounting and fixing elements, and as dental material and for the preparation of dental materials such as adhesives, cements and filling composites.Type: ApplicationFiled: October 11, 2016Publication date: July 19, 2018Inventors: Norbert MOSZNER, Iris LAMPARTH, Kai RIST, Christoph BARNER-KOWOLLIK, Alexander SCHENZEL, Marcel LANGER
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Publication number: 20170156993Abstract: Radically polymerizable dental material, which contains at least one compound of Formula I: and at least one thermolabile radically polymerizable compound and/or at least one photolabile radically polymerizable compound. The materials are characterized by debonding-on-demand properties.Type: ApplicationFiled: July 9, 2015Publication date: June 8, 2017Inventors: Norbert Moszner, Kai Rist, Iris Lamparth, Peter Burtscher, Christian Gorsche, Robert Liska
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Patent number: 9320686Abstract: The invention relates to a dental restorative material which comprises a thermolabile compound of Formula I: [(Z1)m-Q1-X)]k-T-[Y-Q2-(Z2)n]l??Formula I, in which T represents a thermolabile unit which contains at least one thermolabile group based on non-covalent interactions, Z1 and Z2 in each case independently represent a polymerizable group selected from vinyl groups, CH2?CR1—CO—O— and CH2?CR1—CO—NR2— or an adhesive group selected from —Si(OR)3, —COOH, —O—PO(OH)2, —PO(OH)2, —SO2OH and —SH, Q1 in each case independently is missing or represents an (m+1)-valent linear or branched aliphatic C1-C20 radical which can be interrupted by —O—, —S—, —CO—O—, —O—CO—, —CO—NR3—, —NR3—CO—, —O—CO—NR3—, —NR3—CO—O— or —NR3—CO—NR3—, Q2 in each case independently is missing or represents an (n+1)-valent linear or branched aliphatic C1-C20 radical which can be interrupted by —O—, —S—, —CO—O—, —O—CO—, —CO—NR3—, —NR3—CO—, —O—CO—NR3—, —NR3—CO—O— or —NR3—CO—NR3—, X and Y in each case independently are missing or represent —O—, —Type: GrantFiled: September 10, 2012Date of Patent: April 26, 2016Assignee: Ivoclar Vivadent AGInventors: Norbert Moszner, Thomas Hirt, Kai Rist, Ulrich Salz, Christoph Weder, Gina Fiore, Christian Heinzmann, Volker Rheinberger
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Publication number: 20140371341Abstract: The invention relates to a dental restorative material which comprises a thermolabile compound of Formula I: [(Z1)m-Q1-X)]k-T-[Y-Q2-(Z2)n]l??Formula I, in which T represents a thermolabile unit which contains at least one thermolabile group based on non-covalent interactions, Z1 and Z2 in each case independently represent a polymerizable group selected from vinyl groups, CH2?CR1—CO—O— and CH2?CR1—CO—NR2— or an adhesive group selected from —Si(OR)3, —COOH, —O—PO(OH)2, —PO(OH)2, —SO2OH and —SH, Q1 in each case independently is missing or represents an (m+1)-valent linear or branched aliphatic C1-C20 radical which can be interrupted by —O—, —S—, —CO—O—, —O—CO—, —CO—NR3—, —NR3—CO—, —O—CO—NR3—, —NR3—CO—O— or —NR3—CO—NR3—, Q2 in each case independently is missing or represents an (n+1)-valent linear or branched aliphatic C1-C20 radical which can be interrupted by —O—, —S—, —CO—O—, —O—CO—, —CO—NR3—, —NR3—CO—, —O—CO—NR3—, —NR3—CO—O— or —NR3—CO—NR3—, X and Y in each case independently are missing or represent —O—,Type: ApplicationFiled: September 10, 2012Publication date: December 18, 2014Applicant: IVOCLAR VIVADENT AGInventors: Norbert Moszner, Thomas Hirt, Kai Rist, Ulrich Salz, Christoph Weder, Gina Fiore, Christian Heinzmann, Volker Rheinberger
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Publication number: 20110275675Abstract: Dental material which contains an antimicrobial active ingredient according to general formula (I), in which R1=H, C1 to C3 alkylene residue; R2=a linear or branched C4 to C20 alkylene residue; R3=a C6 to C20 alkylene residue; and A?=Cl?, Br?, I?, F?, OH?, alkyl and aryl alcoholate, thiolate, NO3?, BO33?, PO43?, HPO42?, H2PO4?, alkyl and aryl phosphate, alkyl and aryl phosphonate, PF6?, TiF62?, BF4?, acetylacetonate, ?-diketonate or anion of a ?-keto ester. The dental material is suitable in particular as tooth filling material, material for inlays or onlays, tooth cement, enamel/dentine adhesive, veneering material for crowns and bridges, or as material for false teeth.Type: ApplicationFiled: April 29, 2011Publication date: November 10, 2011Applicant: IVOCLAR VIVADENT AGInventors: Kai Rist, Ulrich Salz, Volker Rheinberger