Patents by Inventor Yohann Catel

Yohann Catel 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: 20240099942
    Abstract: Radically polymerizable dental material, which includes a catalyst paste and a base paste, wherein the catalyst pastes includes an oxidizing agent, preferably a peroxide or hydroperoxide, a radically polymerizable monomer and/or oligomer with acid group and a polyfunctional radically polymerizable monomer, and the base paste comprises a polyfunctional radically polymerizable monomer without an acid group and a dihydropyridine derivative of Formula (1) The material has good mechanical properties and does not exhibit a bitter taste.
    Type: Application
    Filed: August 29, 2023
    Publication date: March 28, 2024
    Inventors: Pascal Fässler, Iris Lamparth, Yohann Catel, Thomas Schnur, Jacques Lalevée, Estelle Thetiot
  • Patent number: 11793732
    Abstract: Dental material which comprises at least one compound of formula I, in which R1 is a linear, branched or cyclic aliphatic C1-C30 hydrocarbon radical or an aromatic C6-C30 hydrocarbon radical, wherein the aliphatic or aromatic hydrocarbon radical can be substituted or unsubstituted and wherein aliphatic hydrocarbon radicals can be interrupted by one or more urethane groups, ester groups, oxygen atoms and/or sulfur atoms; X, Y, Z independently of each other in each case are —COOR2, —CON(R3R4)—, an aromatic C6-C10 hydrocarbon radical or CN, wherein R2, R3, R4 in each case independently of each other is hydrogen, a linear, branched or cyclic aliphatic C1-C30 hydrocarbon radical or an aromatic C6-C30 hydrocarbon radical, wherein the aliphatic or aromatic hydrocarbon radical can be substituted or unsubstituted and wherein aliphatic hydrocarbon radicals can be interrupted by one or more oxygen atoms, and m is 2 or 3.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: October 24, 2023
    Assignee: Ivoclar Vivadent AG
    Inventors: Iris Lamparth, Norbert Moszner, Robert Liska, Christian Gorsche, Yohann Catel, Gernot Peer
  • Publication number: 20230203224
    Abstract: A radical polymerizable composition having at least one acidic radical polymerizable monomer, at least one fluoroaluminosilicate glass filler and/or radiopaque glass filler, and at least one water-soluble sulfate and/or phosphate.
    Type: Application
    Filed: December 28, 2022
    Publication date: June 29, 2023
    Inventors: Norbert Moszner, Alexandros Gianasmidis, Delphine Catel, Yohann Catel, Andy Brot, Tim Haldner, Thorsten Bock, Barbara Grabenbauer
  • Publication number: 20230201082
    Abstract: A radically polymerizable composition having at least one acidic radically polymerizable monomer, at least one fluoroaluminosilicate glass filler and/or radiopaque glass filler, and at least one masking agent in solid form.
    Type: Application
    Filed: December 28, 2022
    Publication date: June 29, 2023
    Inventors: Norbert Moszner, Alexandros Gianasmidis, Delphine Catel, Yohann Catel, Andy Brot, Tim Haldner, Thorsten Bock, Barbara Grabenbauer
  • Publication number: 20230201083
    Abstract: A radically polymerizable dental material having at least one radically polymerizable monomer without acid groups, at least one radically polymerizable monomer containing an acid group, at least one fluoroaluminosilicate glass filler and/or radiopaque glass filler, and at least one initiator for the radical polymerization, wherein the filler is an acid-treated fluoroaluminosilicate glass filler and/or radiopaque glass filler.
    Type: Application
    Filed: December 28, 2022
    Publication date: June 29, 2023
    Inventors: Norbert Moszner, Alexandros Gianasmidis, Delphine Catel, Yohann Catel, Andy Brot, Tim Haldner, Christian Ritzberger, Philipp Bielec, Marc Dittmer, Barbara Grabenbauer
  • Patent number: 11618799
    Abstract: Radically polymerizable dental material which contains at least one compound of Formulae I to III: The material preferably additionally contains a radically polymerizable monomer, an initiator for the radical polymerization and filler. It is characterized in particular by a low polymerization contraction stress.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: April 4, 2023
    Assignee: Ivoclar Vivadent AG
    Inventors: Norbert Moszner, Yohann Catel, Iris Lamparth
  • Publication number: 20230002531
    Abstract: Cumene hydroperoxide oligomer according to Formula (I): in which OLIGOMER is a homo- or copolymer chain, which is substituted n times by the group which is in brackets; Q is absent or is a divalent aromatic C6-C14 hydrocarbon radical or an aliphatic, linear or branched C1-C14 hydrocarbon radical, which can be interrupted by one or more S and/or O atoms and/or —O—CO—NR1— and which can be substituted by one or more substituents; X, Y independently of each other in each case are absent, —O—, —COO—; —CONR3— or —O—CO—NR4—, wherein X is absent if Q is absent, and wherein the substitution on the aromatic compound is effected in position 2, 3 or 4 relative to the cumene hydroperoxide group; and n is a value from 1 to 50.
    Type: Application
    Filed: May 24, 2022
    Publication date: January 5, 2023
    Inventors: Norbert Moszner, Yohann Catel, Jorg Angermann, Jean-Jacques Robin, Paul Morandi, Sophie Monge-Darcos
  • Publication number: 20220370300
    Abstract: 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: Application
    Filed: May 4, 2022
    Publication date: November 24, 2022
    Inventors: Norbert Moszner, Jörg Angermann, Iris Lamparth, Yohann Catel, Kai Rist
  • Publication number: 20220257474
    Abstract: Radically polymerizable dental material, which includes a combination of a hydroperoxide and a thiourea derivative according to the following Formula (I) as initiator system for the radical polymerization: in which R is absent or is an (n+1)-valent, aromatic, aliphatic, linear or branched C1-C50 hydrocarbon radical, which can be interrupted by one or more ether, thioether, ester, amide or urethane groups; PG is a radically polymerizable (meth)acrylate, (meth)acrylamide or vinyl group; and n is 1, 2 or 3.
    Type: Application
    Filed: February 1, 2022
    Publication date: August 18, 2022
    Inventors: Norbert Moszner, Yohann Catel, Iris Lamparth, Jorg Angermann
  • Patent number: 11401287
    Abstract: Compounds according to general formula (I) in which M is Ge or Sn, RAr is R1, R2, R3, R4, R5, independently of one another in each case, are —H, —F, —Cl, —OR6, —SR6, —N(R6)2, —CF3, —CN, —NO2, —COOR6, —CONHR6, a branched, cyclic or preferably linear C1-20 alkyl, C2-20 alkenyl, C1-20 alkyloxy or a C2-20 alkenoxy radical, which can be interrupted one or more times by O, S or —NR6— and substituted by one or more polymerizable groups and/or radicals R6, R6 is H, a branched, cyclic or preferably linear C1-20 alkyl or C2-20 alkenyl radical, R7 is a chemical bond, an n-valent aromatic radical or a branched, cyclic or preferably linear C1-20 alkylene radical, which can be interrupted one or more times by O, S or —NR6— and substituted by one or more polymerizable groups, ?O and/or radicals R6, n is 2 or 3 and m is 0 or 1. The compounds are particularly suitable as photoinitiators for radical polymerization and in particular for the production of dental materials.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: August 2, 2022
    Assignee: Ivoclar Vivadent AG
    Inventors: Norbert Moszner, Yohann Catel, Pascal Fässler, Michael Haas, Judith Radebner, Harald Stüger
  • Publication number: 20220002461
    Abstract: Radically polymerizable dental material which contains at least one compound of Formulae I to III: The material preferably additionally contains a radically polymerizable monomer, an initiator for the radical polymerization and filler. It is characterized in particular by a low polymerization contraction stress.
    Type: Application
    Filed: June 7, 2021
    Publication date: January 6, 2022
    Inventors: Norbert Moszner, Yohann Catel, Iris Lamparth
  • Patent number: 11198668
    Abstract: Radically polymerizable composition which contains at least one vinyl ether according to general formula I:
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: December 14, 2021
    Assignees: Ivoclar Vivadent AG, Technische Universität Wien
    Inventors: Norbert Moszner, Yohann Catel, Iris Lamparth, Robert Liska, Christian Gorsche, Gernot Peer
  • Patent number: 11135136
    Abstract: Vinylcyclopropane of general formulae I in which X, Y in each case are O or NH, wherein X and Y cannot have the same meaning, R1 is a linear or branched C1-C8-alkyl radical, which can be interrupted by O, S, an ester group or a urethane group, R2 is a linear or branched C2-C10-alkylene radical, which can be interrupted by O, S, an ester group or a urethane group, R3 is a hydrocarbon radical with 1 to 20 carbon atoms, which additionally can contain one or more N, O or S atoms, and n is 1, 2, 3 or 4, preferably 1 or 2. The vinylcyclopropanes are characterized by a low shrinkage and a high reactivity on radical polymerization and are suitable in particular for the preparation of dental materials.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: October 5, 2021
    Assignee: Ivoclar Vivadent AG
    Inventors: Norbert Moszner, Yohann Catel, Urs Karl Fischer, Sven Tauscher
  • Publication number: 20210261578
    Abstract: Compounds according to general formula (I) in which M is Ge or Sn, RAr is R1, R2, R3, R4, R5, independently of one another in each case, are —H, —F, —Cl, —OR6, —SR6, —N(R6)2, —CF3, —CN, —NO2, —COOR6, —CONHR6, a branched, cyclic or preferably linear C1-20 alkyl, C2-20 alkenyl, C1-20 alkyloxy or a C2-20 alkenoxy radical, which can be interrupted one or more times by O, S or —NR6— and substituted by one or more polymerizable groups and/or radicals R6, R6 is H, a branched, cyclic or preferably linear C1-20 alkyl or C2-20 alkenyl radical, R7 is a chemical bond, an n-valent aromatic radical or a branched, cyclic or preferably linear C1-20 alkylene radical, which can be interrupted one or more times by O, S or —NR6— and substituted by one or more polymerizable groups, ?O and/or radicals R6, n is 2 or 3 and m is 0 or 1. The compounds are particularly suitable as photoinitiators for radical polymerization and in particular for the production of dental materials.
    Type: Application
    Filed: February 18, 2021
    Publication date: August 26, 2021
    Inventors: Norbert Moszner, Yohann Catel, Pascal Fãssler, Michael Haas, Judith Radebner, Harald Stüger
  • Publication number: 20210236388
    Abstract: Dental material which comprises at least one compound of formula I, in which R1 is a linear, branched or cyclic aliphatic C1-C30 hydrocarbon radical or an aromatic C6-C30 hydrocarbon radical, wherein the aliphatic or aromatic hydrocarbon radical can be substituted or unsubstituted and wherein aliphatic hydrocarbon radicals can be interrupted by one or more urethane groups, ester groups, oxygen atoms and/or sulfur atoms; X, Y, Z independently of each other in each case are -COOR2—, -CON(R3R4)—, an aromatic C6-C10 hydrocarbon radical or CN, wherein R2, R3, R4 in each case independently of each other is hydrogen, a linear, branched or cyclic aliphatic C1-C30 hydrocarbon radical or an aromatic C6-C30 hydrocarbon radical, wherein the aliphatic or aromatic hydrocarbon radical can be substituted or unsubstituted and wherein aliphatic hydrocarbon radicals can be interrupted by one or more oxygen atoms, and m is 2 or 3.
    Type: Application
    Filed: February 3, 2021
    Publication date: August 5, 2021
    Inventors: Iris Lamparth, Norbert Moszner, Robert Liska, Christian Gorsche, Yohann Catel, Gernot Peer
  • Patent number: 10781223
    Abstract: Radically polymerizable silane according to the general formula I in which R1 is a linear or branched aliphatic C1-C9-alkyl radical, phenyl or alkylated phenyl radical, R2, R3 independently of each other in each case are absent or are a linear or branched aliphatic C1-C20-alkylene radical, which can be interrupted by S or O atoms, R4, R5, R6 independently of each other in each case are —Cl, —O—CH3, —O—C2H5, —CH3 or —C2H5, X is CH2 or O, Y is absent, or is O or NR?, wherein R? is H or a C1-5-alkyl radical, and Z is absent, or is O, NR?, —CO—O—, —CO—NR?—, —O—CO—O—, —O—CO—NR?—, or —NR?—CO—NR?—, wherein R? is H or a C1-5-alkyl radical and wherein the radicals R2 and R3 cannot be absent at the same time and Z is absent if R2 or R3 is absent, polycondensates based thereon and fillers surface-modified therewith.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: September 22, 2020
    Assignees: Technische Universität Wien, Ivoclar Vivadent AG
    Inventors: Norbert Moszner, Jörg Angermann, Urs Karl Fischer, Iris Lamparth, Yohann Catel, Robert Liska
  • Patent number: 10660825
    Abstract: Vinylcyclopropane of general formulae I in which X, Y in each case are O or NH, wherein X and Y cannot have the same meaning, R1 is a linear or branched C1-C8-alkyl radical, which can be interrupted by O, S, an ester group or a urethane group, R2 is a linear or branched C2-C10-alkylene radical, which can be interrupted by O, S, an ester group or a urethane group, R3 is a hydrocarbon radical with 1 to 20 carbon atoms, which additionally can contain one or more N, O or S atoms, and n is 1, 2, 3 or 4, preferably 1 or 2. The vinylcyclopropanes are characterized by a low shrinkage and a high reactivity on radical polymerization and are suitable in particular for the preparation of dental materials.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: May 26, 2020
    Assignee: Ivoclar Vivadent AG
    Inventors: Norbert Moszner, Yohann Catel, Urs Karl Fischer, Sven Tauscher
  • Publication number: 20200087241
    Abstract: Radically polymerizable composition which contains at least one vinyl ether according to general formula I: in which the variables have the following meanings: A is H, CN, a cycloaliphatic, linear or branched aliphatic C1-C30 hydrocarbon residue, an aromatic C6-C30 hydrocarbon residue or a combination thereof; X is —COO—, —CON(R3)— or is dispensed with; B is H, CN, a cycloaliphatic, linear or branched aliphatic C1-C30 hydrocarbon residue, an aromatic C6-C30 hydrocarbon residue or a combination thereof; Y is —COO—, —CON(R3)— or is dispensed with; R1-3 in each case independently of one another are hydrogen, a cycloaliphatic, linear or branched aliphatic C1-C10 hydrocarbon residue or an aromatic C6-C10 hydrocarbon residue; m is an integer from 1 to 6; n is an integer from 1 to 6; p is an integer from 1 to 6; wherein m and p cannot be greater than 1 at the same time and wherein if m=1, p=n, and if p=1, m=n.
    Type: Application
    Filed: August 20, 2019
    Publication date: March 19, 2020
    Inventors: Norbert Moszner, Yohann Catel, Iris Lamparth, Robert Liska, Christian Gorsche, Gernot Peer
  • Patent number: 10512593
    Abstract: Dental material which contains at least one vinylcyclopropane of the general formulae I, in which A, B independently of each other are in each case OH or COOH; X, Y independently of each other are in each case O or NH; R1, R2 independently of each other are in each case H or an aliphatic linear or branched C1-C10 hydrocarbon radical which can be interrupted by O, S or an ester group; and n, m independently of each other are in each case 0, 1 or 2, wherein, if X?Y?O, R1?H and R2?H, n+m?1. The vinylcyclopropanes are characterized by a low shrinkage and a high reactivity on radical polymerization and are suitable in particular for the preparation of dental materials.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: December 24, 2019
    Assignee: Ivoclar Vivadent AG
    Inventors: Norbert Moszner, Yohann Catel, Urs Karl Fischer, Sven Tauscher
  • Publication number: 20190167533
    Abstract: Vinylcyclopropane of general formulae I in which X, Y in each case are O or NH, wherein X and Y cannot have the same meaning, R1 is a linear or branched C1-C8-alkyl radical, which can be interrupted by O, S, an ester group or a urethane group, R2 is a linear or branched C2-C10-alkylene radical, which can be interrupted by O, S, an ester group or a urethane group, R3 is a hydrocarbon radical with 1 to 20 carbon atoms, which additionally can contain one or more N, O or S atoms, and n is 1, 2, 3 or 4, preferably 1 or 2. The vinylcyclopropanes are characterized by a low shrinkage and a high reactivity on radical polymerization and are suitable in particular for the preparation of dental materials.
    Type: Application
    Filed: August 1, 2017
    Publication date: June 6, 2019
    Applicant: Ivoclar Vivadent AG
    Inventors: Norbert MOSZNER, Yohann CATEL, Urs Karl FISCHER, Sven TAUSCHER