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).

  • Publication number: 20240110056
    Abstract: 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: Application
    Filed: December 21, 2021
    Publication date: April 4, 2024
    Inventors: Sohaib ELGIMIABI, Stefan SPIEKERMANN, Florian SZILLAT
  • Patent number: 11925697
    Abstract: 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: Grant
    Filed: March 7, 2019
    Date of Patent: March 12, 2024
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Joachim Klee, Florian Szillat, Maximilian Maier, Marjorie Yon, Jacques Lalevée, Julie Kirschner, Fabrice Morlet-Savary, Céline Dietlin
  • Patent number: 11918664
    Abstract: 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: Grant
    Filed: June 10, 2021
    Date of Patent: March 5, 2024
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Florian Szillat, Caroline Renn, Christoph Weber, Uwe Walz, Joachim Klee
  • Patent number: 11904030
    Abstract: 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: Grant
    Filed: March 5, 2019
    Date of Patent: February 20, 2024
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Florian Szillat, Caroline Renn, Christian Scheufler, Jörg Brenneisen
  • Patent number: 11883510
    Abstract: 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: Grant
    Filed: October 4, 2022
    Date of Patent: January 30, 2024
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Maximilian Maier, Joachim E. Klee, Christian Scheufler, Caroline Renn, Florian Szillat
  • Patent number: 11844848
    Abstract: 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: Grant
    Filed: October 9, 2018
    Date of Patent: December 19, 2023
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Florian Szillat, Maximilian Maier, Caroline Renn, Oliver Elsner, Joachim E. Klee, Jorg Kempter, Jacques Lalevee, Mariem Bouzrati-Zerelli, Julie Kirschner
  • Patent number: 11628125
    Abstract: 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: Grant
    Filed: August 30, 2018
    Date of Patent: April 18, 2023
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Maximilian Maier, Joachim E. Klee, Christian Scheufler, Caroline Renn, Florian Szillat
  • Publication number: 20230100120
    Abstract: 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: Application
    Filed: October 4, 2022
    Publication date: March 30, 2023
    Applicant: DENTSPLY SIRONA INC.
    Inventors: Maximilian MAIER, Joachim E. KLEE, Christian SCHEUFLER, Caroline RENN, Florian SZILLAT
  • Publication number: 20230026650
    Abstract: 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: Application
    Filed: December 10, 2020
    Publication date: January 26, 2023
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Florian SZILLAT, Kira NEUHAUS, Sven POHLE, Huaibing LIU
  • Publication number: 20230000727
    Abstract: 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: Application
    Filed: August 28, 2020
    Publication date: January 5, 2023
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Joachim E. KLEE, Florian SZILLAT, Julie KIRSCHNER, Jacques LALEVEE
  • Publication number: 20220331209
    Abstract: 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—, wherein
    Type: Application
    Filed: September 10, 2020
    Publication date: October 20, 2022
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Joachim E. KLEE, Florian SZILLAT, Jacques LALEVÉE, Julie KIRSCHNER, Fabrice MORLET-SAVARY
  • Publication number: 20220226198
    Abstract: 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: Application
    Filed: April 17, 2020
    Publication date: July 21, 2022
    Applicant: DENTSPLY SIRONA INC.
    Inventors: Florian SZILLAT, Jacques LALEVÉE, Caroline RENN
  • Patent number: 11224557
    Abstract: 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: Grant
    Filed: October 2, 2017
    Date of Patent: January 18, 2022
    Assignee: DENTSPLY SIRONA INC
    Inventors: Florian Szillat, Caroline Renn, Oliver Elsner, Joachim Klee, Christian Scheufler
  • Publication number: 20220000721
    Abstract: 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: Application
    Filed: November 13, 2019
    Publication date: January 6, 2022
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Joachim E. KLEE, Oliver ELSNER, Florian SZILLAT, Caroline RENN
  • Publication number: 20210186825
    Abstract: 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: Application
    Filed: October 9, 2018
    Publication date: June 24, 2021
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Joachim KLEE, Florian SZILLAT, Marjorie YON, Jurgen H. FIEDLER, Jacques LALEVEE, Julie KIRSCHNER, Laura PERRARD
  • Publication number: 20210186821
    Abstract: 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: Application
    Filed: October 9, 2018
    Publication date: June 24, 2021
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Florian SZILLAT, Maximilian MAIER, Caroline RENN, Oliver ELSNER, Joachim E. KLEE, Jorg KEMPTER, Jacques LALEVEE, Mariem BOUZRATI-ZERELLI, Julie KIRSCHNER
  • Patent number: 10980713
    Abstract: 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: Grant
    Filed: March 8, 2019
    Date of Patent: April 20, 2021
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Maximilian Maier, Huaibing Liu, Sven Pohle, Florian Szillat
  • Publication number: 20210106503
    Abstract: 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: Application
    Filed: March 7, 2019
    Publication date: April 15, 2021
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Joachim KLEE, Florian SZILLAT, Maximilian MAIER, Marjorie YON, Jacques LALEVÉE, Julie KIRSCHNER, Fabrice MORLET-SAVARY, Céline DIETLIN
  • Publication number: 20210069069
    Abstract: 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: Application
    Filed: August 29, 2018
    Publication date: March 11, 2021
    Applicant: DENTSPLY SIRONA INC.
    Inventors: Maximilian MAIER, Joachim E. KLEE, Christian SCHEUFLER, Caroline RENN, Florian SZILLAT
  • Publication number: 20210069070
    Abstract: 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: Application
    Filed: August 30, 2018
    Publication date: March 11, 2021
    Applicant: DENTSPLY SIRONA INC.
    Inventors: Maximilian MAIER, Joachim E. KLEE, Christian SCHEUFLER, Caroline RENN, Florian SZILLAT