Patents by Inventor Florian Szillat
Florian Szillat 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: 20240110056Abstract: The present disclosure provides a two-part curable composition precursor comprising (a) a first part (A) comprising at least one multifunctional epoxy resin having an epoxy functionality of at least three; and (b) a second part (B) comprising a prepolymer obtained from (i) a first amine-based epoxy curing agent and a second amine-based epoxy curing agent distinct from the first amine-based epoxy curing agent and (ii) at least one epoxy resin.Type: ApplicationFiled: December 21, 2021Publication date: April 4, 2024Inventors: Sohaib ELGIMIABI, Stefan SPIEKERMANN, Florian SZILLAT
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Patent number: 11925697Abstract: A photocurable dental impression material comprising: (a) a mixture of polymerizable silicone compounds each having two or more polymerizable (meth)acrylate groups, said mixture having a dynamic viscosity at 25° C. of from 1 to 100 Pas; (b) a filler; (c) a photo initiator system, wherein the mixture of polymerizable silicone compounds comprises based on the total weight of the mixture of polymerizable silicone compounds (a) 10 to 90 percent by weight of high-molecular polymerizable silicone compounds having a molecular weight in the range of from more than 4000 up to 10.000; and (b) 90 to 10 percent by weight of polymerizable silicone compounds having a molecular weight in the range of from 300 to 4000.Type: GrantFiled: March 7, 2019Date of Patent: March 12, 2024Assignee: DENTSPLY SIRONA INC.Inventors: Joachim Klee, Florian Szillat, Maximilian Maier, Marjorie Yon, Jacques Lalevée, Julie Kirschner, Fabrice Morlet-Savary, Céline Dietlin
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Patent number: 11918664Abstract: The present invention relates to an aqueous dental glass ionomer composition for use in the treatment of cavitated carious lesions, which composition comprises a water-soluble, polymerizable polymer comprising acidic groups, which is reactive with the particulate glass in a cement reaction, whereby the polymerizable polymer has a polymer backbone and pendant groups having one or more polymerizable carbon-carbon double bonds. The dental glass ionomer composition is used as a permanent direct restoration.Type: GrantFiled: June 10, 2021Date of Patent: March 5, 2024Assignee: DENTSPLY SIRONA INC.Inventors: Florian Szillat, Caroline Renn, Christoph Weber, Uwe Walz, Joachim Klee
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Patent number: 11904030Abstract: The present invention relates to a dental composition comprising a radically polymerizable compound, a redox initiator system comprising one or more clathrate compounds comprising a host molecule and one or more guest molecules, wherein the host molecule is selected from cyclodextrines, crown ethers, cucurbituriles and calixarenes and the one or more guest molecules are reducing agents, and an oxidizing agent. Furthermore, the present invention relates to a use of the redox initiator system in a dental composition.Type: GrantFiled: March 5, 2019Date of Patent: February 20, 2024Assignee: DENTSPLY SIRONA INC.Inventors: Florian Szillat, Caroline Renn, Christian Scheufler, Jörg Brenneisen
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Patent number: 11883510Abstract: The present invention relates to a dental composition comprising a photoinitiator system comprising a particulate carrier supporting a coinitiator covalently bonded to the surface of the carrier. Furthermore, the present invention relates to a use of the particulate carrier in a dental composition. The particulate carrier displays multiple covalently bonded tertiary amino groups and/or tertiary phosphine groups on the surface, for crosslinking monomers, oligomers and/or polymers having one or more polymerizable double bonds.Type: GrantFiled: October 4, 2022Date of Patent: January 30, 2024Assignee: DENTSPLY SIRONA INC.Inventors: Maximilian Maier, Joachim E. Klee, Christian Scheufler, Caroline Renn, Florian Szillat
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Patent number: 11844848Abstract: The present invention relates to a photocurable dental composition comprising a specific polymerization initiator system containing the combination of a photoinitiator compound and a coinitiator compound being a sulfinate compound or a sulfonate compound. The present invention also relates to the use of this polymerization initiator system in a photocurable dental composition.Type: GrantFiled: October 9, 2018Date of Patent: December 19, 2023Assignee: DENTSPLY SIRONA INC.Inventors: Florian Szillat, Maximilian Maier, Caroline Renn, Oliver Elsner, Joachim E. Klee, Jorg Kempter, Jacques Lalevee, Mariem Bouzrati-Zerelli, Julie Kirschner
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Patent number: 11628125Abstract: The present invention relates to an initiator modified polyacidic polymer having a covalently bonded initiator compound, and to a dental resin-modified glass ionomer composition comprising this polyacidic polymer. Furthermore, the present invention relates to a use of the initiator modified polyacidic polymer for the preparation of a dental composition. The covalently bonded initiator compound of the initiator modified polyacidic polymer may be any compound of a redox initiator system, a photoinitiator system, for example a Norrish type I or II photoinitiator, an electron donor component, a sensitizer component or a coinitiator component.Type: GrantFiled: August 30, 2018Date of Patent: April 18, 2023Assignee: DENTSPLY SIRONA INC.Inventors: Maximilian Maier, Joachim E. Klee, Christian Scheufler, Caroline Renn, Florian Szillat
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Publication number: 20230100120Abstract: The present invention relates to a dental composition comprising a photoinitiator system comprising a particulate carrier supporting a coinitiator covalently bonded to the surface of the carrier. Furthermore, the present invention relates to a use of the particulate carrier in a dental composition. The particulate carrier displays multiple covalently bonded tertiary amino groups and/or tertiary phosphine groups on the surface, for crosslinking monomers, oligomers and/or polymers having one or more polymerizable double bonds.Type: ApplicationFiled: October 4, 2022Publication date: March 30, 2023Applicant: DENTSPLY SIRONA INC.Inventors: Maximilian MAIER, Joachim E. KLEE, Christian SCHEUFLER, Caroline RENN, Florian SZILLAT
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Publication number: 20230026650Abstract: The present invention is related to a dental resin modified glass-ionomer composition comprising (a) water; (b) at least one polycarboxylic acid; (c) at least one compound having at least one phosphorous atom; and (d) at least one bisacrylamide having formula (I). The present invention is further related to a kit comprising such a dental resin modified glass-ionomer composition.Type: ApplicationFiled: December 10, 2020Publication date: January 26, 2023Applicant: DENTSPLY SIRONA Inc.Inventors: Florian SZILLAT, Kira NEUHAUS, Sven POHLE, Huaibing LIU
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Publication number: 20230000727Abstract: The present invention is related to a dental composition comprising at least one polymerizable monomer having at least one ethylenically unsaturated group; and a radical initiator system comprising a photosensitizer haying an absorption maximum ranging from 400 nm to 800 nm; and at least one CH-acidic compound as coinitiator.Type: ApplicationFiled: August 28, 2020Publication date: January 5, 2023Applicant: DENTSPLY SIRONA Inc.Inventors: Joachim E. KLEE, Florian SZILLAT, Julie KIRSCHNER, Jacques LALEVEE
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Publication number: 20220331209Abstract: The present invention is related to a dental composition comprising: (a) at least one polymerizable monomer having at least one ethylenically unsaturated group; (b) a radical initiator system comprising (i) a photosensitizer having an absorption maximum ranging from 400 nm to 800 nm; (ii) a coinitiator; and (iii) a compound of the following formula (1): wherein R1 and R2, which may be the same or different, independently represent a hydrogen atom, a C1-6 alkyl group, or a C1-6 alkoxy group; R3 and R4, which may be the same or different, independently represent a hydrogen atom, or a C1-6 alkyl group, or R3 and R4 may represent a bond so that the carbon atoms to which R3 and R4 are bonded are linked by a double bond; R5 and R6, which may be the same or different, independently represent a hydrogen atom, or a C1-6 alkyl group, or R5 and R6 may represent a bond so that the carbon atoms to which R5 and R6 are bonded are linked by a double bond; L represents a single bond or a group —CRH—, whereinType: ApplicationFiled: September 10, 2020Publication date: October 20, 2022Applicant: DENTSPLY SIRONA Inc.Inventors: Joachim E. KLEE, Florian SZILLAT, Jacques LALEVÉE, Julie KIRSCHNER, Fabrice MORLET-SAVARY
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Publication number: 20220226198Abstract: A redox curing dental composition comprising: a. one or more compounds having a radical polymerizable carbon-carbon double bond; b. a redox initiator system comprising a reducing agent which is a compound of the following formula (I): wherein R1 and R2 which may be the same or different, independently represent a C1-18 hydrocarbyl group, or R1 and R2 form together with the silicon atom to which they are bonded a 3 to 8-membered silicon-containing alicyclic ring, which groups R1 and/or R2 may be substituted with one to three substituents selected from the group consisting of a C1-6 alkoxy group, a halogen atom, or a carboxylic acid group; and (ii) an oxidizing agent adapted to oxidize the reducing agent of formula (I) in the absence of light for generating a radical capable of initiating radical polymerization of the one or more compounds having a radical polymerizable carbon-carbon double bond.Type: ApplicationFiled: April 17, 2020Publication date: July 21, 2022Applicant: DENTSPLY SIRONA INC.Inventors: Florian SZILLAT, Jacques LALEVÉE, Caroline RENN
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Patent number: 11224557Abstract: The present invention relates to a dental composition which is a resin modified dental cement composition, comprising a radically polymerizable compound and a redox initiator system comprising one or more clathrate compounds comprising a host molecule and one or more guest molecules, wherein the guest molecule is an oxidising agent selected from organic peroxides and organic hydroperoxides. Furthermore, the present invention relates to a use of the redox initiator system in a dental composition which is a resin modified dental cement composition.Type: GrantFiled: October 2, 2017Date of Patent: January 18, 2022Assignee: DENTSPLY SIRONA INCInventors: Florian Szillat, Caroline Renn, Oliver Elsner, Joachim Klee, Christian Scheufler
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Publication number: 20220000721Abstract: A dental composition comprising (a) a polymerizable monomer; and (b) an initiator system comprising (b-1) a sensitizer or an oxidizing agent of a redox initiator system; and (b-2) a coinitiator of the following formula (I): Q-X?? (I) wherein Q and X are as defined in claim 1.Type: ApplicationFiled: November 13, 2019Publication date: January 6, 2022Applicant: DENTSPLY SIRONA Inc.Inventors: Joachim E. KLEE, Oliver ELSNER, Florian SZILLAT, Caroline RENN
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Publication number: 20210186825Abstract: The present invention relates to a dental impression material adapted to be cured by visible light, comprising a compound having one or more aliphatic unsaturated groups, a compound containing at least one silicon-bonded hydrogen atom and not having more than three hydrogen atoms attached to any one silicon atom, a photoactivatable catalyst component, and a specific initiator component.Type: ApplicationFiled: October 9, 2018Publication date: June 24, 2021Applicant: DENTSPLY SIRONA Inc.Inventors: Joachim KLEE, Florian SZILLAT, Marjorie YON, Jurgen H. FIEDLER, Jacques LALEVEE, Julie KIRSCHNER, Laura PERRARD
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Publication number: 20210186821Abstract: The present invention relates to a photocurable dental composition comprising a specific polymerization initiator system containing the combination of a photoinitiator compound and a coinitiator compound being a sulfinate compound or a sulfonate compound. The present invention also relates to the use of this polymerization initiator system in a photocurable dental composition.Type: ApplicationFiled: October 9, 2018Publication date: June 24, 2021Applicant: DENTSPLY SIRONA Inc.Inventors: Florian SZILLAT, Maximilian MAIER, Caroline RENN, Oliver ELSNER, Joachim E. KLEE, Jorg KEMPTER, Jacques LALEVEE, Mariem BOUZRATI-ZERELLI, Julie KIRSCHNER
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Patent number: 10980713Abstract: Disclosed is a resin modified dental luting cement composition having a polymerizable resin component, a polyacidic polymer component, a filler component, a redox initiator system, and water.Type: GrantFiled: March 8, 2019Date of Patent: April 20, 2021Assignee: DENTSPLY SIRONA INC.Inventors: Maximilian Maier, Huaibing Liu, Sven Pohle, Florian Szillat
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Publication number: 20210106503Abstract: A photocurable dental impression material comprising: (a) a mixture of polymerizable silicone compounds each having two or more polymerizable (meth)acrylate groups, said mixture having a dynamic viscosity at 25° C. of from 1 to 100 Pas; (b) a filler; (c) a photo initiator system, wherein the mixture of polymerizable silicone compounds comprises based on the total weight of the mixture of polymerizable silicone compounds (a) 10 to 90 percent by weight of high-molecular polymerizable silicone compounds having a molecular weight in the range of from more than 4000 up to 10.000; and (b) 90 to 10 percent by weight of polymerizable silicone compounds having a molecular weight in the range of from 300 to 4000.Type: ApplicationFiled: March 7, 2019Publication date: April 15, 2021Applicant: DENTSPLY SIRONA Inc.Inventors: Joachim KLEE, Florian SZILLAT, Maximilian MAIER, Marjorie YON, Jacques LALEVÉE, Julie KIRSCHNER, Fabrice MORLET-SAVARY, Céline DIETLIN
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Publication number: 20210069069Abstract: The present invention relates to a dental composition comprising a photoinitiator system comprising a particulate carrier supporting a coinitiator covalently bonded to the surface of the carrier. Furthermore, the present invention relates to a use of the particulate carrier in a dental composition. The particulate carrier displays multiple covalently bonded tertiary amino groups and/or tertiary phosphine groups on the surface, for crosslinking monomers, oligomers and/or polymers having one or more polymerizable double bonds.Type: ApplicationFiled: August 29, 2018Publication date: March 11, 2021Applicant: DENTSPLY SIRONA INC.Inventors: Maximilian MAIER, Joachim E. KLEE, Christian SCHEUFLER, Caroline RENN, Florian SZILLAT
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Publication number: 20210069070Abstract: The present invention relates to an initiator modified polyacidic polymer having a covalently bonded initiator compound, and to a dental resin-modified glass ionomer composition comprising this polyacidic polymer. Furthermore, the present invention relates to a use of the initiator modified polyacidic polymer for the preparation of a dental composition. The covalently bonded initiator compound of the initiator modified polyacidic polymer may be any compound of a redox initiator system, a photoinitiator system, for example a Norrish type I or II photoinitiator, an electron donor component, a sensitizer component or a coinitiator component.Type: ApplicationFiled: August 30, 2018Publication date: March 11, 2021Applicant: DENTSPLY SIRONA INC.Inventors: Maximilian MAIER, Joachim E. KLEE, Christian SCHEUFLER, Caroline RENN, Florian SZILLAT