Patents by Inventor Jean-Pierre Fouassier
Jean-Pierre Fouassier 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: 11166883Abstract: Dental composition comprising (a) a homogeneous phase comprising monomer combinations (i) and (ii), (i) and (iii), (ii) and (iii), or (i), (ii) and (iii), or comprising monomer (iii), wherein (i) represents one or more compounds having one or more radically polymerizable carbon-carbon double bonds; (ii) represents one or more compounds having one or more cationically polymerizable groups; and (iii) represents one or more compounds having a combination of one or more radically polymerizable carbon-carbon double bonds and one or more cationically polymerizable groups; (b) an initiator system comprising (iv) one or more radical polymerization initiator of the following formula (I): wherein M is Ge or Si; R1, R2 and R3 may be the same or different, independently represent an organic group, and R4 represents a hydrogen atom, an organic or organometallic group; provided that when R4 is a hydrogen atom, the initiator system further comprises a sensitizer compound having a light absorption maximum in the rangType: GrantFiled: April 7, 2017Date of Patent: November 9, 2021Assignee: DENTSPLY SIRONA Inc.Inventors: Joachim E Klee, Maximilian Maier, Christoph P. Fik, Jacques Lalevee, Jean Pierre Fouassier, Fabrice Morlet-Savary, Celine Dietlin, Mariem Bouzrati-Zerelli
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Patent number: 10588830Abstract: The present invention relates to a dental composition comprising a specific polymerization initiator system comprising a compound having an acylsilyl- or acylgermanyl-group. The present invention also relates the use of the compound having an acylsilyl- or acylgermanyl group for the preparation of a dental composition.Type: GrantFiled: October 7, 2016Date of Patent: March 17, 2020Assignee: DENTSPLY SIRONA INC.Inventors: Joachim E. Klee, Florian Szillat, Maximilian Maier, Helmut Ritter, Jacques Lalevee, Jean Pierre Fouassier, Fabrice Morlet-Savary, Celine Dietlin, Mariem Bouzrati-Zerelli, Christoph P Fik
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Patent number: 10532009Abstract: Disclosed herein is a dental composition having a polymerization initiator system with an aromatic tertiary phosphine compound. Further disclosed is the use of the aromatic tertiary phospine compound for the preparation of a photocurable dental compositions.Type: GrantFiled: March 30, 2016Date of Patent: January 14, 2020Assignee: DENTSPLY SIRONA Inc.Inventors: Joachim Klee, Maximilian Maier, Jacques Lalevee, Christoph P. Fik, Jean Pierre Fouassier, Fabrice Morlet-Savary, Celine Dietlin
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Patent number: 10512594Abstract: The present invention relates to a dental composition comprising an initiator system comprising a sensitizer compound having an acylsilyl- or acylgermyl-group and a specific coinitiator compound. The present invention also relates to an initiator system consisting essentially of the sensitizer compound having an acylsilyl- or acylgermyl-group and a coinitiator compound wherein a C—H bond dissociation energy is less than 95 Kcal/mol. Furthermore, the present invention relates to the use of this initiator system for the preparation of a dental composition.Type: GrantFiled: October 10, 2016Date of Patent: December 24, 2019Assignee: DENTSPLY SIRONA Inc.Inventors: Joachim E. Klee, Florian Szillat, Maximilian Maier, Helmut Ritter, Jacques Lalevee, Jean Pierre Fouassier, Fabrice Morlet-Savary, Celine Dietlin, Mariem Bouzrati-Zerelli, Christoph P Fik
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Publication number: 20190117522Abstract: Dental composition comprising (a) a homogeneous phase comprising monomer combinations (i) and (ii), (i) and (iii), (ii) and (iii), or (i), (ii) and (iii), or comprising monomer (iii), wherein (i) represents one or more compounds having one or more radically polymerizable carbon-carbon double bonds; (ii) represents one or more compounds having one or more cationically polymerizable groups; and (iii) represents one or more compounds having a combination of one or more radically polymerizable carbon-carbon double bonds and one or more cationically polymerizable groups; (b) an initiator system comprising (iv) one or more radical polymerization initiator of the following formula (I): wherein M is Ge or Si; R1, R2 and R3 may be the same or different, independently represent an organic group, and R4 represents a hydrogen atom, an organic or organometallic group; provided that when R4 is a hydrogen atom, the initiator system further comprises a sensitizer compound having a light absorption maximum in the rangType: ApplicationFiled: April 7, 2017Publication date: April 25, 2019Applicant: DENTSPLY SIRONA inc.Inventors: Joachim E. Klee, Maximilian MAIER, Christoph P. FIK, Jscques LALEVEE, Jean Pierre FOUASSIER, Fabrice MORLET-SAVARY, Celine DIETLIN, Mariem BOUZRATI-ZERELLI
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Publication number: 20180303722Abstract: The present invention relates to a dental composition comprising a specific polymerization initiator system comprising a compound having an acylsilyl- or acylgermanyl-group. The present invention also relates the use of the compound having an acylsilyl- or acylgermanyl group for the preparation of a dental composition.Type: ApplicationFiled: October 7, 2016Publication date: October 25, 2018Applicant: DENTSPLY SIRONA Inc.Inventors: Joachim E. KLEE, Florian SZILLAT, Maximilian MAIER, Helmut RITTER, Jacques LALEVEE, Jean Pierre FOUASSIER, Fabrice MORLET-SAVARY, Celine DIETLIN, Mariem BOUZRATI-ZERELLI, Christoph P FIK
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Publication number: 20180289592Abstract: The present invention relates to a dental composition comprising an initiator system comprising a sensitizer compound having an acylsilyl- or acylgermyl-group and a specific coinitiator compound. The present invention also relates to an initiator system consisting essentially of the sensitizer compound having an acylsilyl- or acylgermyl-group and a coinitiator compound wherein a C—H bond dissociation energy is less than 95 Kcal/mol. Furthermore, the present invention relates to the use of this initiator system for the preparation of a dental composition.Type: ApplicationFiled: October 10, 2016Publication date: October 11, 2018Applicant: DENTSPLY SIRONA Inc.Inventors: Joachim E. KLEE, Florian SZILLAT, Maximilian MAIER, Helmut RITTER, Jacques LALEVEE, Jean Pierre FOUASSIER, Fabrice MORLET-SAVARY, Celine DIETLIN, Mariem BOUZRATI-ZERELLI, Christoph P. FIK
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Publication number: 20180092811Abstract: Disclosed herein is a dental composition having a polymerization initiator system with an aromatic tertiary phosphine compound. Further disclosed is the use of the aromatic tertiary phospine compound for the preparation of a photocurable dental compositions.Type: ApplicationFiled: March 30, 2016Publication date: April 5, 2018Applicant: DENTSPLY SIRONA inc.Inventors: Joachim KLEE, Maximilian MAIER, Jacques LALEVEE, Christoph P. FIK, Jean Pierre FOUASSIER, Fabrice MORLET-SAVARY, Celine DIETLIN
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Publication number: 20100196826Abstract: Photopolymerisable systems for coatings or photolithography comprising radically photopolimerisable oligomers and/or monomers having ethylenically unsaturated groups and, as photoinitiator, at least one compound of formula (I).Type: ApplicationFiled: September 5, 2008Publication date: August 5, 2010Inventors: Stefano Romagnano, Gabriele Norcini, Giuseppe Li Bassi, Marco Visconti, Celine Dietlin, Xavier Allonas, Jean Pierre Fouassier
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Publication number: 20100093883Abstract: The present invention concerns photopolymerisable systems comprising reactive oligomers and/or monomers having ethylenically unsaturated groups and as photoinitiator at least one hydroxamic ester of Formula (I) or (II) or (III).Type: ApplicationFiled: January 31, 2008Publication date: April 15, 2010Applicant: Lamberti SpAInventors: Angelo Casiraghi, Marco Visconti, Gabriele Norcini, Celine Dietlin, Xavier Allonas, Jean Pierre Fouassier, Giuseppe Li Bassi
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Publication number: 20060055070Abstract: The method comprises photopolymerizing by means of a light radiation of the visible and/or near UV field of a composition free of mineral particles, comprising at least one photopolymerizable monomer and at least one photoinitiator selected amongst suberone derivatives and mixtures of ?-diketone and an organic peroxide. Application to the manufacture of ophthalmic lenses.Type: ApplicationFiled: February 3, 2004Publication date: March 16, 2006Applicant: Essilor International Compagnie Generale d'OptiqueInventors: Caroline Grotzinger, Dominique Burget, Jean-Pierre Fouassier, Gilles Richard, Odile Primel, Leanirith Yean
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Patent number: 6153661Abstract: Novel onium borates of an element of Groups 15 to 17 of the Periodic Table, or borates of an organometallic complex of an element of Groups 4 to 10 of the Periodic Table, well suited for the photochemical/electron beam cationic initiation of polymerization/crosslinking, the anionic borate moiety of which having the formula:[BX.sub.a R.sub.b ].sup.-in which a and b are integers ranging from 0 to 4 and a+b=4; the symbols X are each a halogen atom when a ranges up to 3 and an OH functional group when a ranges up to 2; and the symbols R, which may be identical or different, are each a phenyl radical substituted by at least one element or electron-withdrawing substituent or by at least two halogen atoms, or an aryl radical containing at least two aromatic ring members, or such aryl radical bearing at least one electron-withdrawing substituent.Type: GrantFiled: May 6, 1997Date of Patent: November 28, 2000Assignee: Rhone-Poulenc ChimieInventors: Frederic Castellanos, Jacques Cavezzan, Jean-Pierre Fouassier, Christian Priou
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Patent number: 6147184Abstract: Novel onium borates of an element of Groups 15 to 17 of the Periodic Table, or borates of an organometallic complex of an element of Groups 4 to 10 of the Periodic Table, well suited for the photochemical/electron beam cationic initiation of polymerization/crosslinking, the anionic borate moiety of which having the formula:[BX.sub.a R.sub.b ].sup.-in which a and b are integers ranging from 0 to 4 and a+b=4; the symbols X are each a halogen atom when a ranges up to 3 and an OH functional group when a ranges up to 2; and the symbols R, which may be identical or different, are each a phenyl radical substituted by at least one element or electron-withdrawing substituent or by at least two halogen atoms, or an aryl radical containing at least two aromatic ring members, or such aryl radical bearing at least one electron-withdrawing substituent.Type: GrantFiled: May 6, 1997Date of Patent: November 14, 2000Assignee: Rhone-Poulenc ChimieInventors: Frederic Castellanos, Jacques Cavezzan, Jean-Pierre Fouassier, Christian Priou
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Patent number: 5668192Abstract: Novel onium borates of an element of Groups 15 to 17 of the Periodic Table, or borates of an organometallic complex of an element of Groups 4 to 10 of the Periodic Table, well suited for the photochemical/electron beam cationic initiation of polymerization/crosslinking, the anionic borate moiety of which having the formula:[BX.sub.a R.sub.b ].sup.-in which a and b are integers ranging from 0 to 4 and a+b=4; the symbols X are each a halogen atom when a ranges up to 3 and an OH functional group when a ranges up to 2; and the symbols R, which may be identical or different, are each a phenyl radical substituted by at least one element or electron-withdrawing substituent or by at least two halogen atoms, or an aryl radical containing at least two aromatic ring members, or such aryl radical bearing at least one electron-withdrawing substituent.Type: GrantFiled: April 18, 1996Date of Patent: September 16, 1997Assignee: Rhone-Poulenc ChimieInventors: Frederic Castellanos, Jacques Cavezzan, Jean-Pierre Fouassier, Christian Priou
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Patent number: 5550265Abstract: Novel onium borates of an element of Groups 15 to 17 of the Periodic Table, or borates of an organometallic complex of an element of Groups 4 to 10 of the Periodic Table, well suited for the photochemical/electron beam cationic initiation of polymerization/crosslinking, the anionic borate moiety of which having the formula:[BX.sub.a R.sub.b ].sup.-which a and b are integers ranging from 0 to 4 and a+b=4; the symbols X are each a halogen atom when ranges up to 3 and an OH functional group when a ranges up to 2; and the symbols R, which may be identical or different, are each a phenyl radical substituted by at least one element or electron-withdrawing substituent or by at least two halogen atoms, or an aryl radical containing at least two aromatic ring members, or such aryl radical bearing at least one electron-withdrawing substituent.Type: GrantFiled: March 8, 1995Date of Patent: August 27, 1996Assignee: Rhone-Poulenc ChimieInventors: Frederic Castellanos, Jacques Cavezzan, Jean-Pierre Fouassier, Christian Priou
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Patent number: 5468902Abstract: Novel onium borates of an element of Groups 15 to 17 of the Periodic Table, or borates of an organometallic complex of an element of Groups 4 to 10 of the Periodic Table, well suited for the photochemical/electron beam cationic initiation of polymerization/crosslinking, the anionic borate moiety of which having the formula:[BX.sub.a R.sub.b ].sup.-in which a and b are integers ranging from 0 to 4 and a+b=4; the symbols X are each a halogen atom when a ranges up to 3 and an OH functional group when a ranges up to 2; and the symbols R, which may be identical or different, are each a phenyl radical substituted by at least one element or electron-withdrawing substituent or by at least two halogen atoms, or an aryl radical containing at least two aromatic ring members, or such aryl radical bearing at least one electron-withdrawing substituent.Type: GrantFiled: March 23, 1993Date of Patent: November 21, 1995Assignee: Rhone-Poulenc ChimieInventors: Frederic Castellanos, Jacques Cavezzan, Jean-Pierre Fouassier, Christian Priou
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Patent number: 4678245Abstract: The invention relates to a device for storing compact discs, cassettes and the like comprising removable vertical inner walls provided with horizontal protrusions defining storing compartments, said protrusions can be removable to allow storage of discs, cassettes of different width. The device is easy to stack and to manufacture.Type: GrantFiled: April 11, 1986Date of Patent: July 7, 1987Inventor: Jean-Pierre Fouassier