Patents by Inventor Christian Renner
Christian Renner 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: 11897836Abstract: The present invention relates to a process for the preparation of methionine comprising the step of contacting a solution or suspension comprising 2-amino-4-(methylthio)butanenitrile and/or 2-amino-4-(methylthio)butaneamide with water in the presence of a catalyst to give a methionine comprising mixture, wherein the catalyst comprises CeO2 comprising particles, wherein the CeO2 comprising particles have a BET surface area of from 175 to 300+/?10% m2/g measured according to DIN ISO 9277-5 (2003), a mean maximum Feret diameter xFmax, mean of from 3+/?10% to 40+/?10% nm and a mean minimum Feret diameter xFmin, mean of from 2+/?10% to 30+/?10% nm, both measured according to DIN ISO 9276-6 (2012).Type: GrantFiled: June 8, 2020Date of Patent: February 13, 2024Assignee: Evonik Operations GmbHInventors: Jürgen Bilz, Cornelia Borgmann, Achim Fischer, Lucas Geist, Anja Nordschild, Christian Renner, Christian Reus, Axel Ronneburg
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Publication number: 20230250278Abstract: Disclosed herein is a process for producing rigid polyisocyanurate foams, where (a) aromatic polyisocyanate, (b) isocyanate-reactive compounds including at least one polyetherol (b1) and/or polyesterol (b2), wherein where the number-average content of isocyanate-reactive hydrogen atoms of components (b 1) and (b2) is at least 1.7, (c) catalyst, (d) blowing agents, (e) flame retardants, (f) optionally auxiliary and additive substances and (g) optionally compounds having aliphatic hydrophobic groups and not falling under the definition of compounds (a) to (f) are mixed to afford a reaction mixture and allowed to cure to afford a rigid polyisocyanurate foam. Further disclosed herein is a rigid polyisocyanurate foam obtainable by the process.Type: ApplicationFiled: June 23, 2021Publication date: August 10, 2023Inventors: Tobias KALUSCHKE, Christian RENNER, Olaf JACOBMEIER, Sabrina KRONIG
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Patent number: 11613521Abstract: The present invention relates to a process for the preparation of methionine comprising the step of contacting a solution or suspension comprising 2-amino-4-(methylthio)butanenitrile and/or 2-amino-4-(methylthio)butaneamide with water in the presence of a catalyst to give a methionine comprising mixture, wherein the catalyst comprises CeO2 comprising particles, wherein the CeO2 comprising particles comprise from 50 to 100 wt.-% of CeO2, have a BET surface area of from 35 to 65 m2/g measured according to DIN ISO 9277-5 (2003), a mean maximum Feret diameter xFmax, mean of from 10 to 40 nm and a mean minimum Feret diameter xFmin, mean of from 5 to 30 nm, both measured according to DIN ISO 9276-6 (2012).Type: GrantFiled: February 3, 2020Date of Patent: March 28, 2023Assignee: Evonik Operations GmbHInventors: Juergen Bilz, Cornelia Borgmann, Achim Fischer, Lucas Geist, Anja Nordschild, Christian Renner, Christian Reus, Axel Ronneburg
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Patent number: 11524936Abstract: A chemical compound of formula (I), and specific compositions including 3-methylthiopropionaldehyde, 3-methylthiopropane-1,1-diol, a compound of formula I and water, and processes for producing same and also the use of same may be used for the production of 2-hydroxy-4-(methylthio)butyronitrile, methionine hydantoin, methionine. Protected forms may be used for the storage and/or transport of 3-methylthiopropionaldehyde.Type: GrantFiled: November 21, 2019Date of Patent: December 13, 2022Assignee: Evonik Operations GmbHInventors: Judith Hierold, Andrea Kopp, Stephan Rautenberg, Christian Renner
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Publication number: 20220372205Abstract: Described herein is a method for the preparation of a rigid polyisocyanate based foam, including mixing (a) polyisocyanate, (b) at least one compound having at least two hydrogen atoms reactive towards isocyanates, (c) optionally flame retardant, (d) blowing agent, (e) catalyst and (f) optionally further additives, to form a reaction mixture and reacting the reaction mixture to obtain the polyurethane based rigid foam where the compound reactive towards isocyanates (b) includes an aromatic polyetherpolyol (b2) and at least one compound selected from the group consisting of an aromatic polyesterpolyol (b1) and a polyetherpolyol (b3) different from polyether (b2). Also described herein is a rigid polyisocyanate based foam obtained from such a method and a polyol component for the production of a polyisocyanate based foam.Type: ApplicationFiled: October 29, 2020Publication date: November 24, 2022Inventors: Markus SCHUETTE, Christian RENNER, Olaf JACOBMEIER, Sirus ZARBAKHSH
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Publication number: 20220306574Abstract: The invention relates to a single cycle process for preparing D,L-methionine from an alkali methioninate solution obtained by alkaline hydrolysis of 5-(2-methylmercaptoethyl)hydantoin, in which the D,L-methionine is obtained by neutralizing the alkali methioninate solution with carbon dioxide at elevated temperature and subsequently crystallizing D,L-methionine in the presence of seed crystals.Type: ApplicationFiled: June 17, 2020Publication date: September 29, 2022Applicant: Evonik Operations GmbHInventors: Johannes WEFER, Hans-Joachim HASSELBACH, Tobias WINKLER, Danny DE CORTE, Bernd DRAPAL, Imad MOUSSALLEM, Christian RENNER, Christian RÜCKRIEGEL
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Publication number: 20220227706Abstract: The present invention relates to a process for the preparation of methionine comprising the step of contacting a solution or suspension comprising 2-amino-4-(methylthio)butanenitrile and/or 2-amino-4-(methylthio)butaneamide with water in the presence of a catalyst to give a methionine comprising mixture, wherein the catalyst comprises CeO2 comprising particles, wherein the CeO2 comprising particles have a BET surface area of from 175 to 300+/?10% m2/g measured according to DIN ISO 9277-5 (2003), a mean maximum Feret diameter xFmax, mean of from 3+/?10% to 40+/?10% nm and a mean minimum Feret diameter xFmin, mean of from 2+/?10% to 30+/?10% nm, both measured according to DIN ISO 9276-6 (2012).Type: ApplicationFiled: June 8, 2020Publication date: July 21, 2022Applicant: Evonik Operations GmbHInventors: Jürgen BILZ, Cornelia BORGMANN, Achim FISCHER, Lucas GEIST, Anja NORDSCHILD, Christian RENNER, Christian REUS, Axel RONNEBURG
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Publication number: 20220089533Abstract: The present invention relates to a process for the preparation of methionine comprising the step of contacting a solution or suspension comprising 2-amino-4-(methylthio)butanenitrile and/or 2-amino-4-(methylthio)butaneamide with water in the presence of a catalyst to give a methionine comprising mixture, wherein the catalyst comprises CeO2 comprising particles, wherein the CeO2 comprising particles comprise from 50 to 100 wt.-% of CeO2, have a BET surface area of from 35 to 65 m2/g measured according to DIN ISO 9277-5 (2003), a mean maximum Feret diameter xFmax, mean of from 10 to 40 nm and a mean minimum Feret diameter xFmin, mean of from 5 to 30 nm, both measured according to DIN ISO 9276-6 (2012).Type: ApplicationFiled: February 3, 2020Publication date: March 24, 2022Applicant: Evonik Operations GmbHInventors: Juergen BILZ, Cornelia BORGMANN, Achim FISCHER, Lucas GEIST, Anja NORDSCHILD, Christian RENNER, Christian REUS, Axel RONNEBURG
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Publication number: 20220048855Abstract: The present invention pertains to a method for producing methionine or salts or derivatives thereof from hydrogen cyanide (HCN), the method comprising a step of producing 2-hydroxy-4-(methylthio)butyronitrile (MMP-CN), or a crude product mixture comprising MMP-CN, by contacting a hydrogen cyanide (HCN) process gas mixture prepared according to the Andrussow process from methane, ammonia and oxygen, with 3-methylmercaptopropionaldehyde (MMP), wherein the HCN process gas mixture is obtained from the crude HCN process gas mixture by adjusting the amount of ammonia to between 20% (v/v) and 60% (v/v) of the amount of the ammonia in the crude HCN process gas mixture.Type: ApplicationFiled: December 13, 2019Publication date: February 17, 2022Applicant: EVONIK OPERATIONS GMBHInventors: Daniel SUDHOFF, Judith HIEROLD, Philipp ROTH, Imad MOUSSALLEM, Ulf BINDERNAGEL, Christian RENNER
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Publication number: 20210347732Abstract: A chemical compound of formula (I), and specific compositions including 3-methylthiopropionaldehyde, 3-methylthiopropane-1,1-diol, a compound of formula I and water, and processes for producing same and also the use of same may be used for the production of 2-hydroxy-4-(methylthio)butyronitrile, methionine hydantoin, methionine. Protected forms may be used for the storage and/or transport of 3-methylthiopropionaldehyde.Type: ApplicationFiled: November 21, 2019Publication date: November 11, 2021Applicant: Evonik Operations GmbHInventors: Judith HIEROLD, Andrea KOPP, Stephan RAUTENBERG, Christian RENNER
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Publication number: 20210163661Abstract: The present disclosure relates to a method for producing rigid polyurethane foam composite elements, including at least one outer layer and a rigid polyurethane foam layer, by mixing (a) polyisocyanates with (b) compounds having at least two hydrogen atoms reactive with isocyanate groups, (c) optionally flame retardant(s), (d) blowing agent, (e) catalyst, and (f) optionally auxiliaries and adjuvants to form a reaction mixture, applying the reaction mixture to the outer layer, and curing it to form the rigid polyurethane foam. The present disclosure further relates to a rigid polyurethane foam composite element obtainable by such a method.Type: ApplicationFiled: December 11, 2018Publication date: June 3, 2021Inventors: Olaf Jacobmeier, Tobias Kaluschke, Christian Renner, Michael Thater
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Publication number: 20210047548Abstract: Described herein is a process for producing composite elements comprising thermal insulation material (B), adhesive (C), and optionally at least one outer layer (A), where the thermal insulation material (B) is bonded with the adhesive (C). Also described herein are composite elements formed from thermal insulation material (B) and adhesive (C) and optionally at least one outer layer (A), producible by such a process. Also described herein is a method of using the adhesive (C) for the bonding of thermal insulation materials (B).Type: ApplicationFiled: January 30, 2019Publication date: February 18, 2021Inventors: Olaf Jacobmeier, Sabrina Kronig, Antje Huskobla, Christian Renner, Peter Huntemann
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Patent number: 10844009Abstract: The present invention pertains to a process for preparing guanidino acetic acid (GAA) from cyanamide and glycine in alkaline process solution, in which anionic impurities are removed from the process solution by electrodialysis.Type: GrantFiled: December 31, 2019Date of Patent: November 24, 2020Assignee: Evonik Operations GmbHInventors: Timo Stahl, Patrik Stenner, Cornelia Borgmann, Christian Renner, Axel Ronneburg
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Publication number: 20200317879Abstract: The present invention relates to a molding made of foam, wherein at least one fiber (F) is located partly within the molding, i.e. is surrounded by the foam. The two ends of the respective fiber (F) not surrounded by the foam thus each project from one side of the molding. The foam is produced by polymerization of a reactive mixture (rM) comprising at least one compound having isocyanate-reactive groups, at least one blowing agent and at least one polyisocyanate.Type: ApplicationFiled: May 17, 2017Publication date: October 8, 2020Inventors: Robert Stein, Gianpaolo Tomasi, Ludwig Windeler, Christian Renner, Holger Ruckdaeschel, Tim Diehlmann, Rene Arbter, Marc Claude Martin
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Publication number: 20200207707Abstract: The present invention pertains to a process for preparing guanidino acetic acid (GAA) from cyanamide and glycine in alkaline process solution, in which anionic impurities are removed from the process solution by electrodialysis.Type: ApplicationFiled: December 31, 2019Publication date: July 2, 2020Inventors: Timo STAHL, Patrik STENNER, Cornelia BORGMANN, Christian RENNER, Axel RONNEBURG
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Publication number: 20190153185Abstract: The invention relates to a sandwich component composed of at least two building material plates which are arranged essentially parallel to one another at a distance from one another and have a polyurethane foam core between the spaced building material plates, wherein the ratio of the greatest measured compressive modulus of the polyurethane foam core in a direction oriented parallel to the building material plates to the compressive modulus of the polyurethane foam core in a direction oriented perpendicular to the building material plates is less than 1.7. To produce the sandwich components, a mixture of (a) at least one polyisocyanate component, (b) at least one component which comprises at least one polyfunctional compound which is reactive toward isocyanates and (c) at least one blowing agent is introduced by the high-pressure injection method into a hollow space between spaced building material plates.Type: ApplicationFiled: May 30, 2017Publication date: May 23, 2019Inventors: Sven MOENNIG, Sarunas TURCINSKAS, Dirk WEINRICH, Andrea EISENHARDT, Christian RENNER, Juergen BOKERN, Alex POPOV, Gianpaolo TOMASI
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Patent number: 9914287Abstract: The present invention relates to composite elements comprising (i) plastic, adhering to which there is (ii) a polyisocyanate polyaddition product, where the polyisocyanate polyaddition product is obtained via mixing of (a) isocyanate with (b) compounds having groups reactive toward isocyanates, (c) catalysts and optionally additional products to give a reaction mixture and converting the reaction mixture to a polyisocyanate polyaddition product, where the compounds (b) comprise a polyester polyalcohol as adhesion promoter, capable of production via polycondensation of an acid component and one or more low-molecular-weight diols whose molar mass is less than 500 g/mol, in excess, where the acid component comprises from 83 to 97 mol % of adipic acid and from 3 to 17 mol % of phthalic acid, isophthalic acid, and/or terephthalic acid. The present invention also relates to components in the fitting-out or aircraft, of vehicles, or of buildings, and to insulation comprising this type of composite element.Type: GrantFiled: December 10, 2009Date of Patent: March 13, 2018Assignee: BASF SEInventors: Christian Renner, Gerlinde Tischer, Rolf Illguth, Margit Gehring, Franz Xaver Redl
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Patent number: 9589080Abstract: A method for validating an illumination-range test value of a light cone of at least one headlight of a vehicle. The method includes reading in a reflection intensity of a point on at least one road marking illuminated by the light cone; generating a reflection intensity model for the road marking, based on the obtained reflection intensity and a particular distance of the point from the vehicle, the reflection intensity model being designed to assign different reflection intensities to different positions on the road marking in front of the vehicle; determining an illumination-range plausibility value, at which, according to the reflection intensity model, a reflection intensity is reached, which corresponds to a reflection-intensity threshold value; and comparing the illumination-range plausibility value to the illumination-range test value, to validate the illumination-range test value, if the illumination-range plausibility value is inside a tolerance range around the illumination-range test value.Type: GrantFiled: May 12, 2011Date of Patent: March 7, 2017Assignee: ROBERT BOSCH GMBHInventors: Tobias Rentschler, Christian Renner
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Patent number: 9569673Abstract: A method for detecting a vehicle position on a lane, including: reading in a first image of a first camera, having a first optical axis and reading in at least a second image of at least a second camera having a second optical axis, the cameras being oriented so that the first and second optical axis intersect outside of the detection angle of the first and/or second camera, the first and the at least second image each enclosing a viewing angle deviating by an angle of 90 degrees maximum from the driving direction. Determining at least one interlinked image gradient for each of the first image and the at least second image. Assigning the at least one interlinked image gradient to a boundary object and assigning the at least one additional interlinked image gradient to a boundary object and/or to one additional boundary object, and ascertaining a relative position of the vehicle as to the boundary object and/or to the additional boundary object to detect the vehicle position.Type: GrantFiled: August 1, 2013Date of Patent: February 14, 2017Assignee: ROBERT BOSCH GMBHInventors: Christian Renner, Markus Hahn
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Patent number: 9562131Abstract: The present invention relates to a process for producing a thermoformable rigid polyurethane-polyamide foam having a closed-cell content of less than 70%, which comprises mixing (a) an organic polyisocyanate with (b) one or more polymeric compounds having two or more isocyanate-reactive hydrogen atoms, (c) optionally crosslinking and/or chain-extending agents, (d) one or more carboxylic acids having a functionality of 2 or more, (e) a catalyst comprising a Lewis base component, and (f) optionally auxiliaries and additives to form a reaction mixture and reacting this reaction mixture to form the rigid polyurethane-polyamide foam. The present invention further relates to a thermoformable rigid polyurethane-polyamide foam obtained by such a process and also to the use of such a thermoformable rigid polyurethane-polyamide foam for interior lining or engine compartment lining of motor vehicles.Type: GrantFiled: August 19, 2013Date of Patent: February 7, 2017Assignee: BASF SEInventors: Frank Prissok, Julio Albuerne, Christian Renner