Patents by Inventor Gerrit Lübbe
Gerrit Lübbe 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: 11944692Abstract: The present invention relates to dental, light-curable, one-component composite compositions comprising (A) monomers, (B) fillers, and (C) initiators, the viscosity ?20 of which at 20° C. is greater than 400 Pa*s, preferably greater than 800 Pa*s and more preferably greater than 1200 Pa*s, and the viscosity ?50 of which at 50° C. is less than 150 Pa*s, preferably less than 120 Pa*s and more preferably less than 90 Pa*s, and wherein the quotient ?50/?20 of the viscosity of the composite composition at 50° C. and the viscosity of the composite composition at 20° C. is less than 0.125, preferably less than 0.1. The invention is preferably directed to dental composite compositions selected from the group consisting of dental filling materials, lining materials, luting materials and fissure sealants.Type: GrantFiled: June 18, 2019Date of Patent: April 2, 2024Assignee: VOCO GMBHInventors: Christoph Hahn, Gerrit Lübbe, Reinhard Maletz, Manfred Thomas Plaumann
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Publication number: 20210267849Abstract: The present invention relates to dental, light-curable, one-component composite compositions comprising (A) monomers, (B) fillers, and (C) initiators, the viscosity ?20 of which at 20° C. is greater than 400 Pa*s, preferably greater than 800 Pa*s and more preferably greater than 1200 Pa*s, and the viscosity ?50 of which at 50° C. is less than 150 Pa*s, preferably less than 120 Pa*s and more preferably less than 90 Pa*s, and wherein the quotient ?50/?20 of the viscosity of the composite composition at 50° C. and the viscosity of the composite composition at 20° C. is less than 0.125, preferably less than 0.1. The invention is preferably directed to dental composite compositions selected from the group consisting of dental filling materials, lining materials, luting materials and fissure sealants.Type: ApplicationFiled: June 18, 2019Publication date: September 2, 2021Applicant: VOCO GMBHInventors: Christoph HAHN, Gerrit LÜBBE, Reinhard MALETZ, Manfred Thomas PLAUMANN
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Publication number: 20210052469Abstract: The present invention relates to novel polymerizable dental compositions comprising, (A) polysiloxanes, wherein the polysiloxanes comprise a mixture of the condensates of the three silanes (a1), (a2) and (a3) and/or a cocondensate of a mixture of the three silanes (a1), (a2) and (a3) and/or a mixture of at least two of the cocondensates (a1)/(a2), (a1)/(a3) and (a2)/(a3) and/or a mixture of the condensate of one of the three silanes (a1), (a2) or (a3) with the cocondensate of the other two silanes, (B) fillers and (C) initiators and/or catalysts and/or activators for the polymerization.Type: ApplicationFiled: August 17, 2020Publication date: February 25, 2021Inventors: Silke Riedel, Gerrit Lübbe, Manfred Thomas Plaumann
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Particularly storage-stable and thixotropically stable prophylaxis paste for professional dental use
Patent number: 10299997Abstract: The invention relates to a particularly storage-stable and thixotropically stable dental prophylaxis paste for professional tooth cleaning which is very easy to use and thoroughly cleans and polishes the teeth of the patient and causes little abrasion of natural tooth substance. Such a dental prophylaxis paste may comprise: a.) a base component comprising water and humectant, b.) a cleaning body comprising a compound based on calcium phosphate in combination with pumice, c.) a buffer component, d.) a component for controlling the rheology, e.) an additive component selected from the group consisting of stabilizers, dyes, pigments and fluoridation agents, and, as wetting agent, f.) has exclusively one or more amphoteric surfactant(s), where the buffer component c.) is based on hydrogen phosphate and keeps the pH of the prophylaxis paste, measured in a 10% suspension (w/w) of the paste in water against a pH electrode, between 7 and 8.Type: GrantFiled: March 10, 2014Date of Patent: May 28, 2019Assignee: VOCO GmbHInventors: Gerrit Lübbe, Manfred Thomas Plaumann -
Patent number: 9839585Abstract: The present invention relates to novel free-radically curable dental compositions, comprising chain-like and/or cyclic and/or cage-type polysiloxanes substituted by free-radically polymerizable groups and having at least 3 silicon atoms and/or mixed forms thereof, disiloxanes substituted by free-radically polymerizable groups, optionally one, two, three or more free-radically curable dental monomers having no silicon atom, fillers, initiators and/or catalysts for free-radical polymerization, and also further customary additives, to the cured dental products formed from the dental compositions of the invention, and to the respective use thereof as dental material, especially as flowable filling composites (called “flow materials”), core buildup materials and luting cements. The invention further relates to a method for producing the dental compositions and to a process for producing a respective dental product.Type: GrantFiled: November 10, 2015Date of Patent: December 12, 2017Assignee: VOCO GmbHInventors: Nils Fontein, Gerrit Luebbe, Manfred Thomas Plaumann
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Patent number: 9795541Abstract: The present invention relates to the use of free-radically curable compositions, comprising chain-like and/or cyclic and/or cage-type polysiloxanes substituted by free-radically polymerizable groups and having at least 3 silicon atoms and/or mixed forms thereof, disiloxanes substituted by free-radically polymerizable groups, optionally one, two, three or more free-radically curable monomers having no silicon atom, fillers, initiators and/or catalysts for free-radical polymerization, and also further customary additives, in additive manufacturing methods, preferably in stereolithography (SL) and digital light processing (DLP). The present invention further relates to the use of the cured free-radically curable compositions, preferably for production of dental products.Type: GrantFiled: November 10, 2015Date of Patent: October 24, 2017Assignee: VOCO GmbHInventors: Nils Fontein, Gerrit Luebbe, Daniel Oldenburger, Manfred Thomas Plaumann
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Patent number: 9532931Abstract: The invention relates to a polysiloxane compound comprising specific siloxane units, curable dental materials comprising one or more than one polysiloxane compound according to the invention, cured dental materials obtainable from the curable dental materials according to the invention, a method for preparation of polysiloxane compounds according to the invention, a method for preparing curable polysiloxane compounds according to the invention and a method for preparing cured dental materials according to the invention.Type: GrantFiled: June 2, 2015Date of Patent: January 3, 2017Assignee: VOCO GMBHInventor: Gerrit Lübbe
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Publication number: 20160128909Abstract: The present invention relates to the use of free-radically curable compositions, comprising chain-like and/or cyclic and/or cage-type polysiloxanes substituted by free-radically polymerizable groups and having at least 3 silicon atoms and/or mixed forms thereof, disiloxanes substituted by free-radically polymerizable groups, optionally one, two, three or more free-radically curable monomers having no silicon atom, fillers, initiators and/or catalysts for free-radical polymerization, and also further customary additives, in additive manufacturing methods, preferably in stereolithography (SL) and digital light processing (DLP). The present invention further relates to the use of the cured free-radically curable compositions, preferably for production of dental products.Type: ApplicationFiled: November 10, 2015Publication date: May 12, 2016Inventors: Nils Fontein, Gerrit Luebbe, Daniel Oldenburger, Manfred Thomas Plaumann
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Publication number: 20160128911Abstract: The present invention relates to novel free-radically curable dental compositions, comprising chain-like and/or cyclic and/or cage-type polysiloxanes substituted by free-radically polymerizable groups and having at least 3 silicon atoms and/or mixed forms thereof, disiloxanes substituted by free-radically polymerizable groups, optionally one, two, three or more free-radically curable dental monomers having no silicon atom, fillers, initiators and/or catalysts for free-radical polymerization, and also further customary additives, to the cured dental products formed from the dental compositions of the invention, and to the respective use thereof as dental material, especially as flowable filling composites (called “flow materials”), core buildup materials and luting cements. The invention further relates to a method for producing the dental compositions and to a process for producing a respective dental product.Type: ApplicationFiled: November 10, 2015Publication date: May 12, 2016Inventors: Nils Fontein, Gerrit Luebbe, Manfred Thomas Plaumann
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Publication number: 20150342841Abstract: The invention relates to a polysiloxane compound comprising specific siloxane units, curable dental materials comprising one or more than one polysiloxane compound according to the invention, cured dental materials obtainable from the curable dental materials according to the invention, a method for preparation of polysiloxane compounds according to the invention, a method for preparing curable polysiloxane compounds according to the invention and a method for preparing cured dental materials according to the invention.Type: ApplicationFiled: June 2, 2015Publication date: December 3, 2015Applicant: VOCO GmbHInventor: Gerrit Lübbe
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PARTICULARLY STORAGE-STABLE AND THIXOTROPICALLY STABLE PROPHYLAXIS PASTE FOR PROFESSIONAL DENTAL USE
Publication number: 20140255490Abstract: The invention relates to a particularly storage-stable and thixotropically stable dental prophylaxis paste for professional tooth cleaning which is very easy to use and thoroughly cleans and polishes the teeth of the patient and causes little abrasion of natural tooth substance. Such a dental prophylaxis paste may comprise: a.) a base component comprising water and humectant, b.) a cleaning body comprising a compound based on calcium phosphohate in combination with pumice, c.) a buffer component, d.) a component for controlling the rheology, e.) an additive component selected from the group consisting of stabilizers, dyes, pigments and fluoridation agents, and, as wetting agent, f.) has exclusively one or more amphoteric surfactant(s), where the buffer component c.) is based on hydrogen phosphate and keeps the pH of the prophylaxis paste, measured in a 10% suspension (w/w) of the paste in water against a pH electrode, between 7 and 8.Type: ApplicationFiled: March 10, 2014Publication date: September 11, 2014Inventors: Gerrit Lübbe, Manfred Thomas Plaumann