Patents by Inventor Christoph Eggert
Christoph Eggert 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: 20220267500Abstract: The invention relates to a method for producing polyisocyanates having a low monomer content, said method comprising the following steps: (i) modifying at least one monomeric diisocyanate to obtain a mixture containing at least one polyisocyanate and unconverted monomeric diisocyanate, (ii) separating the mixture obtained in step (i) into at least one gaseous stream containing monomeric diisocyanate and a liquid stream depleted of monomeric diisocyanate, (iii) partially condensing the gaseous stream from (ii) in at least one condenser, so that a liquid condensate and an uncondensed vapour stream are obtained, (iv) post-condensing the uncondensed vapour stream obtained in step (iii) in at least one post-condenser, so that a post-condensate and an uncondensed waste gas are obtained, and (v) delivering the uncondensed waste gas from step (iv) to the suction side of a vacuum pump, characterised in that the at least one post-condenser in step (iv) is operated at a post-condenser temperature, and the at least one cType: ApplicationFiled: July 6, 2020Publication date: August 25, 2022Inventors: Michael Merkel, Anna Grosse Daldrup, Christoph Eggert, Stefan Groth, Markus Meuresch, Monika Groetzner, Stefan Nolte
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Publication number: 20220213028Abstract: The invention relates to a process for purifying at least one isocyanate selected from the group consisting of aliphatic, cycloaliphatic, araliphatic isocyanates and mixtures thereof, to a process for producing at least one isocyanate selected from the group consisting of aliphatic, cycloaliphatic, araliphatic isocyanates and mixtures thereof, to the isocyanate obtainable by this process, to a polyurethane constructed from at least one such isocyanate, to the use of this isocyanate and to an optical component containing at least one polyurethane according to the invention.Type: ApplicationFiled: April 30, 2020Publication date: July 7, 2022Inventors: Christoph Eggert, Thomas Fischer, Ulrich Geron, Ulrich Esser
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Patent number: 11310233Abstract: A method for authenticating smart glasses in a data network includes transmitting a message to an authentication computer of the data network, generating a first transaction code and transmitting to the smart glasses, reading authorization data of a user, without involving the smart glasses, into the data network and processing by the authentication computer, which carries out an authentication of the user on the basis of the authorization data, and in case of a successful authentication, reading a second transaction code into the data network, wherein if a check performed by the authentication computer shows that the second transaction code matches the first, an access right is provided for the smart glasses and stored in the smart glasses, the access right enabling the smart glasses to access one or a plurality of predetermined services in the data network.Type: GrantFiled: November 15, 2019Date of Patent: April 19, 2022Assignee: TEAMVIEWER GERMANY GMBHInventors: Henrik Holle, Hendrik Witt, Christoph Eggert
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Publication number: 20220010053Abstract: The present invention relates to a polyisocyanate composition, comprising a mixture of ?60 wt. %, relative to the total weight of the mixture, of at least one polyisocyanate based on pentamethylene diisocyanate and ?40 wt. %, relative to the total weight of the mixture, of at least one polyisocyanate based on a cycloaliphatic diisocyanate and and/or of at least one polyisocyanate based on pentamethylene diisocyanate and at least one cycloaliphatic diisocyanate, the polyisocyanate composition having a residual monomer content of monomer diisocyanates below 0.5 wt. %, relative to the total weight of the polyisocyanate composition.Type: ApplicationFiled: November 21, 2019Publication date: January 13, 2022Inventors: Andreas Hecking, Christoph Eggert, Nusret Yuva, Achim Meyer
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Patent number: 11091584Abstract: The present invention relates to a polyisocyanate composition comprising a formation component having isocyanate groups, the isocyanate groups having been reacted to an extent of ?98% with at least one CH-acidic compound, characterized in that the formation component consists to an extent of ?51% by weight of at least one polyisocyanate based on pentamethylene 1,5-diisocyanate having a content of isocyanurate trimer of ?60 area %, based on the total weight of the polyisocyanates based on pentamethylene 1,5-diisocyanate, and the remaining proportion up to 100% by weight of the total amount of polyisocyanates present in the formation component consists of at least one aliphatic or cycloaliphatic polyisocyanate. The present invention further provides a one-component system comprising the polyisocyanate composition, a process for producing a coating on a substrate, and the coatings obtainable from the one-component system.Type: GrantFiled: July 20, 2016Date of Patent: August 17, 2021Assignee: Covestro Deutschland AGInventors: Andreas Hecking, Florian Johannes Stempfle, Christoph Eggert, Michael Grahl, Dorota Greszta-Franz
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Publication number: 20210107865Abstract: The invention relates to aliphatic amines, methods for preparing the same and use thereof, particularly their use in curing agents. The method for preparing an aliphatic amine comprises reacting a reaction composition comprising an amino acid and an amine compound capable of dissolving the amino acid to obtain the aliphatic amine, wherein the content ratio of the amino acid to the amine compound is 1:10000-1:1, preferably 1:100-1:2, most preferably 1:10-1:2. The method for preparing an aliphatic amine provided by the present invention has a high reaction rate, a high conversion rate of the amino acid, a high purity of the aliphatic product, a long catalyst life, and easy purification of the reaction product.Type: ApplicationFiled: March 28, 2017Publication date: April 15, 2021Inventors: Ruijing GUO, Mingyan MA, Jen-Chieh LIN, Niklas MEINE, Gernot JAEGER, Gerhard LANGSTEIN, Christoph EGGERT
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Publication number: 20210054125Abstract: The invention relates to a method for producing an object from a precursor, comprising the steps: I) depositing a radically cross-linked resin on a carrier so that a layer of a construction material connected to the carrier is obtained, said layer corresponding to a first selected cross-section of the precursor; II) depositing a radically cross-linked resin on a previously applied layer of the construction material so that an additional layer of the construction material is obtained, which corresponds to a further selected cross-section of the precursor and which is connected to the previously applied layer; III) repeating step II) until the precursor is formed, wherein, at least in step II), the deposition of a radically cross-linked resin is carried out by allowing energy to act on a selected region of a radically cross-linkable resin, corresponding to the respectively selected cross-section of the object, wherein the radically cross-linkable resin has a viscosity (23° C.Type: ApplicationFiled: December 4, 2017Publication date: February 25, 2021Inventors: Dirk Achten, Thomas BÜSGEN, Florian GOLLING, Roland WAGNER, Christoph TOMCZYK, Jörge TILLACK, Christoph EGGERT, Hans-Josef LAAS, Florian STEMPFLE
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Publication number: 20200198226Abstract: The invention relates to a method for producing an object, comprising the step of producing the object from a construction material by means of an additive manufacturing process, wherein the construction material comprising a polyurethane and/or polyester polyol. The construction material further comprises a polyamine component and during and/or after the production of the object, the construction material is heated to a temperature of ?50° C. The invention also relates to an object obtained according to the claimed method.Type: ApplicationFiled: June 13, 2018Publication date: June 25, 2020Inventors: Dirk Achten, Thomas Buesgen, Christoph Eggert, Hans-Josef Laas, Florian Johannes Stempfle, Michael Ludewig
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Publication number: 20200162459Abstract: A method for authenticating smart glasses in a data network includes transmitting a message to an authentication computer of the data network, generating a first transaction code and transmitting to the smart glasses, reading authorization data of a user, without involving the smart glasses, into the data network and processing by the authentication computer, which carries out an authentication of the user on the basis of the authorization data, and in case of a successful authentication, reading a second transaction code into the data network, wherein if a check performed by the authentication computer shows that the second transaction code matches the first, an access right is provided for the smart glasses and stored in the smart glasses, the access right enabling the smart glasses to access one or a plurality of predetermined services in the data network.Type: ApplicationFiled: November 15, 2019Publication date: May 21, 2020Applicant: Ubimax GmbHInventors: Henrik Holle, Hendrik Witt, Christoph Eggert
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Patent number: 10590229Abstract: The present invention relates to non-aqueous coating agent compositions, containing at least one polyol (A), at least one silane-modified compound (B) of formula (I), optionally one or more silane-free aliphatic or cycloaliphatic polyisocyanates (C) having free or blocked isocyanate groups, and at least one catalyst (D) for the cross-linking of the silane groups. Furthermore, the non-aqueous coating agent compositions according to the invention can contain one or more surface additives (E) and one or more non-aqueous solvents (F).Type: GrantFiled: May 17, 2016Date of Patent: March 17, 2020Assignee: Covestro Deutschland AGInventors: Jürgen Köcher, Tanja Hebestreit, Christoph Eggert
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Publication number: 20200002462Abstract: The invention relates to a method for modifying isocyanates, in which at least pentamethylene diisocyanate is oligomerized in the presence of at least one catalyst, the catalyst comprising at least one spirocyclic ammonium salt having a cation of formula I as catalyst for the isocyanate modification, the N-position substituents X and Y representing the same or different, substituted or unsubstituted C2-C20 alkylene chains optionally interrupted by heteroatoms (0, N, S) and by aromatic rings. The invention further relates to the modified isocyanates obtainable or obtained by means of the method and to the use of such a catalyst to oligomerize at least pentamethylene diisocyanate.Type: ApplicationFiled: February 19, 2018Publication date: January 2, 2020Inventors: Andreas HECKING, Frank RICHTER, Christoph EGGERT
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Patent number: 10472455Abstract: The invention relates to modified polyisocyanates, obtained by reacting at least one polyisocyanate (A) based on 1,5-diisocyanatopentane with at least one silane compound (B) which is reactive with respect to isocyanate groups. The invention also relates to a method for producing the modified polyisocyanates and to the use thereof as starting components in the production of polyurethane plastics, in particular as crosslinker components in polyurethane paints and coatings.Type: GrantFiled: March 10, 2016Date of Patent: November 12, 2019Assignee: Covestro Deutschland AGInventors: Hans-Josef Laas, Christoph Eggert, Andreas Hecking, Nusret Yuva, Gesa Behnken
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Patent number: 10428174Abstract: The invention relates to a polyisocyanate mixture containing at least one polyisocyanate based on 1,5-diisocyanatopentane and at least one organic solvent, said organic solvent being inert with respect to isocyanate groups and the polyisocyanate mixture has a solid body content of ?35 and ?65 wt. %. The invention also relates to a two-component system, to a method for producing a coating, to the thus obtained coatings and to a composite consisting of the coating and a substrate.Type: GrantFiled: April 18, 2016Date of Patent: October 1, 2019Assignee: COVESTRO DEUTSCHLAND AGInventors: Andreas Hecking, Christoph Eggert, Jan Weikard, Gesa Behnken
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Patent number: 10252988Abstract: The invention relates to a composition for producing transparent polythiourethane bodies containing or consisting of A) a polyisocyanate component containing at least one polyisocyanate with a functionality of isocyanate groups of at least 2 per molecule, B) a thiol component containing at least one polythiol with a functionality of thiol groups of at least two per molecule, in addition to optionally C) auxiliary agents and additives, the ratio of isocyanate groups to groups reactive in relation to isocyanates being 0.5:1 to 2.0:1. The composition is characterized in that the polyisocyanate of the polyisocyanate component A) is produced by a gas-phase phosgenation of aliphatic, cycloaliphatic, aromatic or araliphatic polyamines.Type: GrantFiled: April 13, 2015Date of Patent: April 9, 2019Assignee: Covestro Deutschland AGInventors: Robert Maleika, Fredie Langenstueck, Christoph Eggert, Irene C. Latorre Martinez, Josef Sanders
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Patent number: 10179830Abstract: The invention relates to thioallophanates which contain silane groups and are of the general formula (I) in which R1, R2 and R3 are identical or different radicals and are each a saturated or unsaturated, linear or branched, aliphatic or cycloaliphatic radical or an optionally substituted aromatic or araliphatic radical having up to 18 carbon atoms, where said radical may optionally contain up to 3 heteroatoms from the group of oxygen, sulphur and nitrogen, X is a linear or branched organic radical having at least 2 carbon atoms, Y is a linear or branched, aliphatic or cycloaliphatic radical or an araliphatic or aromatic radical having up to 18 carbon atoms, and n is an integer from 1 to 20, to a process for preparation thereof, and to the use thereof as starting components in the production of polyurethane plastics.Type: GrantFiled: June 9, 2015Date of Patent: January 15, 2019Assignee: Covestro Deutschland AGInventors: Hans-Josef Laas, Christoph Eggert, Dieter Mager
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Patent number: 10125155Abstract: The invention relates to novel silane-modified formamides and/or pre-polymers for bonding and/or sealing diverse substrate materials, such as, for example metal, wood, glass and/or plastic. The invention also relates to a reactive single-component adhesive system comprising the claimed silane-modified formamide and/or pre-polymers.Type: GrantFiled: January 26, 2015Date of Patent: November 13, 2018Assignee: Covestro Deutschland AGInventor: Christoph Eggert
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Publication number: 20180298138Abstract: The present invention relates to non-aqueous coating agent compositions, containing at least one polyol (A), at least one silane-modified compound (B) of formula (I), optionally one or more silane-free aliphatic or cycloaliphatic polyisocyanates (C) having free or blocked isocyanate groups, and at least one catalyst (D) for the cross-linking of the silane groups. Furthermore, the non-aqueous coating agent compositions according to the invention can contain one or more surface additives (E) and one or more non-aqueous solvents (F).Type: ApplicationFiled: May 17, 2016Publication date: October 18, 2018Inventors: Jürgen KOECHER, Tanja HEBESTREIT, Christoph EGGERT
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Patent number: 10040808Abstract: The invention relates to novel silane-modified formamide-polymers and/or pre-polymers for bonding and/or sealing diverse substrate materials, such as, for example metal, wood, glass and/or plastic. The invention also relates to a reactive single-component adhesive system comprising the claimed silane-modified formamide polymers.Type: GrantFiled: January 26, 2015Date of Patent: August 7, 2018Assignee: Covestro Deutschland AGInventor: Christoph Eggert
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Publication number: 20180208709Abstract: The present invention relates to a polyisocyanate composition comprising a formation component having isocyanate groups, the isocyanate groups having been reacted to an extent of ?98% with at least one CH-acidic compound, characterized in that the formation component consists to an extent of ?51% by weight of at least one polyisocyanate based on pentamethylene 1,5-diisocyanate having a content of isocyanurate trimer of ?60 area %, based on the total weight of the polyisocyanates based on pentamethylene 1,5-diisocyanate, and the remaining proportion up to 100% by weight of the total amount of polyisocyanates present in the formation component consists of at least one aliphatic or cycloaliphatic polyisocyanate. The present invention further provides a one-component system comprising the polyisocyanate composition, a process for producing a coating on a substrate, and the coatings obtainable from the one-component system.Type: ApplicationFiled: July 20, 2016Publication date: July 26, 2018Inventors: Andreas Hecking, Florian Johannes Stempfle, Christoph Eggert, Michael Grahl, Dorota Greszta-Franz
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Publication number: 20180201719Abstract: The invention relates to a polyisocyanate mixture containing at least one polyisocyanate based on 1,5-diisocyanatopentane and at least one organic solvent, said organic solvent being inert with respect to isocyanate groups and the polyisocyanate mixture has a solid body content of ?35 and ?65 wt. %. The invention also relates to a two-component system, to a method for producing a coating, to the thus obtained coatings and to a composite consisting of the coating and a substrate.Type: ApplicationFiled: April 18, 2016Publication date: July 19, 2018Inventors: Andreas Hecking, Christoph Eggert, Jan Weikard, Gesa Behnken