Patents by Inventor Hubertus Eversheim
Hubertus Eversheim 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: 11542369Abstract: The present invention relates to aspartic acid ester-functional polysiloxanes, their use in the manufacture of curable compositions using polyisocyanate crosslinkers, in particular, in the manufacture of coating compositions, cured compositions obtained from said curable compositions and articles comprising the cured compositions.Type: GrantFiled: October 16, 2019Date of Patent: January 3, 2023Assignee: Momentive Performance Materials GmbHInventors: Dmitry Chernyshov, Hubertus Eversheim
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Publication number: 20210363307Abstract: The present invention relates to aspartic acid ester-functional polysiloxanes, their use in the manufacture of curable compositions using polyisocyanate crosslinkers, in particular, in the manufacture of coating compositions, cured compositions obtained from said curable compositions and articles comprising the cured compositions.Type: ApplicationFiled: October 16, 2019Publication date: November 25, 2021Inventors: Dmitry CHERNYSHOV, Hubertus EVERSHEIM
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Publication number: 20210261778Abstract: The present invention relates to an oil-bleed self-bonding liquid silicone rubber composition having both self-bonding and self-lubricating capabilities. The oil-bleed self-bonding liquid silicone rubber composition exhibits self-bonding capability in particular to substrates that contain residual hydroxyl groups or other residual hydrosilyl-reacting groups on their surface, including polycarbonate, polyester, polyamide, polysulfone, polyurethane, phenolic resin, epoxy resin, cellulose, glass and the mixture thereof.Type: ApplicationFiled: May 23, 2019Publication date: August 26, 2021Inventors: Huiping ZHANG, Clemens TRUMM, Gunnar HOFFMUELLER, John Mitchell HUGGINS, Hubertus EVERSHEIM, Srividhya MARIMUTHU, Enise MICHALSKI
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Patent number: 9771458Abstract: Disclosed herein are compositions, comprising linear polydiorganosiloxanes having enhanced reactivity and their use to prepare polydiorganosiloxane-polyorgano block copolymers.Type: GrantFiled: October 8, 2014Date of Patent: September 26, 2017Assignee: Momentive Performance Materials GmbHInventors: John Huggins, Hubertus Eversheim
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Publication number: 20160251483Abstract: Disclosed herein are compositions, comprising linear polydiorganosiloxanes having enhanced reactivity and their use to prepare polydiorganosiloxane-polyorgano block copolymers.Type: ApplicationFiled: October 8, 2014Publication date: September 1, 2016Inventors: John Huggins, Hubertus Eversheim
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Patent number: 8912290Abstract: Disclosed herein is a process for preparing a linear hydroxyaryloxy-functional polydiorganosiloxanes having controlled structures. The process includes the step of reacting a linear ?,?-bisacyloxypolydiorganosiloxane with at least one bisphenolic compound, or hydroxy-functional oligomer thereof, in such a molar ratio that the phenolic groups in the bisphenolic compound or the hydroxy-functional oligomer thereof to the acyloxy groups in the ?,?-bisacyloxypolydiorganosiloxane is less than 2.0. Also disclosed are hydroxyaryloxy-functional polydiorganosiloxanes produced from the process and the polysiloxane/polyorgano block copolymers made using the hydroxyaryloxy-functional siloxanes.Type: GrantFiled: April 9, 2013Date of Patent: December 16, 2014Assignee: Momentive Performance Materials GmbHInventors: John M. Huggins, Hubertus Eversheim
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Patent number: 8829140Abstract: Disclosed herein is a process for the production of a polysiloxane-polyorgano block copolymer. The process includes reacting a reaction mixture containing (a) an ester-functional polydiorganosiloxane and (b) a bisphenolic compound or a bisphenolic compound oligomer. This process has the advantage of yielding block copolymers with controlled block structures and avoiding the impurities that may be carried over from the conventional hydroxyaryloxy-terminated-polydiorganosiloxanes.Type: GrantFiled: May 16, 2012Date of Patent: September 9, 2014Assignee: Momentive Performance Materials Inc.Inventors: John M. Huggins, Hubertus Eversheim
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Publication number: 20130267665Abstract: Disclosed herein is a process for preparing a linear hydroxyaryloxy-functional polydiorganosiloxanes having controlled structures. The process includes the step of reacting a linear ?,?-bisacyloxypolydiorganosiloxane with at least one bisphenolic compound, or hydroxy-functional oligomer thereof, in such a molar ratio that the phenolic groups in the bisphenolic compound or the hydroxy-functional oligomer thereof to the acyloxy groups in the ?,?-bisacyloxypolydiorganosiloxane is less than 2.0. Also disclosed are hydroxyaryloxy-functional polydiorganosiloxanes produced from the process and the polysiloxane/polyorgano block copolymers made using the hydroxyaryloxy-functional siloxanes.Type: ApplicationFiled: April 9, 2013Publication date: October 10, 2013Applicant: Momentive Performance Materlals GmbHInventors: John M. Huggins, Hubertus Eversheim
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Publication number: 20120296051Abstract: Disclosed herein is a process for the production of a polysiloxane-polyorgano block copolymer. The process includes reacting a reaction mixture containing (a) an ester-functional polydiorganosiloxane and (b) a bisphenolic compound or a bisphenolic compound oligomer. This process has the advantage of yielding block copolymers with controlled block structures and avoiding the impurities that may be carried over from the conventional hydroxyaryloxy-terminated-polydiorganosiloxanes. Also disclosed are ester-functional polysiloxanes and polysiloxane-polyorgano block copolymers prepared by the process of the invention. These copolymers exhibit advantageous properties such as improved low temperature properties, improved rheological properties during molding, improved clarity, chemical, scratch resistance, and improved electrical insulation properties.Type: ApplicationFiled: May 16, 2012Publication date: November 22, 2012Applicant: Momentive Performance Materials GmbHInventors: John M. Huggins, Hubertus Eversheim
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Publication number: 20120046485Abstract: The invention relates to novel polyorganosiloxanes, methods for their preparation and their use, in particular as force and/or heat transmitting liquids, such as hydraulic liquids, and in cosmetic compositions.Type: ApplicationFiled: March 12, 2010Publication date: February 23, 2012Applicant: MOMENTIVE PERFORMANCE MATERIALS GMBHInventors: Dieter Wrobel, Hubertus Eversheim, Julien Richeton
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Publication number: 20100178266Abstract: The present invention relates to novel processes for the manufacture of poly-organosiloxanes comprising (C6-C60)-alkylmethylsiloxy-groups and dimethyl-siloxy groups, polyorganosiloxanes obtainable by such processes, preferably aqueous emulsions comprising such polyorganosiloxanes and the use of such polyorganosiloxanes.Type: ApplicationFiled: June 23, 2008Publication date: July 15, 2010Applicant: MOMENTIVE PERFORMANCE MATERIALS GMBHInventors: John Huggins, Martin Kropfgans, Gunnar Hoffmueller, Hubertus Eversheim
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Patent number: 7374771Abstract: Cosmetic formulations comprising alkyl-substituted siloxanes as vaporizable carriers.Type: GrantFiled: November 12, 2002Date of Patent: May 20, 2008Assignee: GE Bayer Silicones GmbH & Co., KGInventors: Hubertus Eversheim, Martin Kropfgans, Sabine Nienstedt, Horst Lange
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Publication number: 20050113592Abstract: The invention relates to a process for manufacturing chlorosilanes, in which methyl-rich disilane, polysilane and siloxane residues from the Müller-Rochow synthesis or a chlorosilane synthesis are reduced in quantity. It comprises the steps: a) reaction of silicon with alkyl halogenides, aryl halogenides or hydrogen chloride, b) reaction of at least one high-boiling product fraction from step a) with at least one halogenide and c) reaction of at least one high-boiling product fraction resulting from step b) with alkyl halogenides, aryl halogenides and/or chlorosilanes.Type: ApplicationFiled: August 4, 2004Publication date: May 26, 2005Applicant: GE Bayer Silicones GmbH & Co.Inventors: Roland Wagner, Ralf Maecker, Hubertus Eversheim, Horst Lange
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Publication number: 20050069564Abstract: The invention relates to the use of siloxanes as vaporizable carriers, in particular to the use of siloxanes in cosmetic formulations, and to cleaning and care products, to processes for the preparation of the siloxanes, and to compositions comprising them.Type: ApplicationFiled: November 12, 2002Publication date: March 31, 2005Inventors: Hubertus Eversheim, Martin Kropfgans, Sabine Nienstedt, Horst Lange
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Patent number: 6258968Abstract: Process for the preparation of organofunctional polysiloxanes, which comprises reacting cyclic dialkylsiloxanes with at least one compound of the type HO—R′—X, wherein X═—OH, —COOH, —NR″2—, —CR″═CR″2, and R═alkyl, aryl, alkylene, oxyalkylene or arylene, in the presence of an equilibration catalyst.Type: GrantFiled: December 10, 1999Date of Patent: July 10, 2001Assignee: GE Bayer Silicones GmbH & Co. KGInventors: Hubertus Eversheim, Ottfried Schlak
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Patent number: 6063889Abstract: Novel liquid organopolysiloxane resins of the average composition[R.sup.1 Si(CH.sub.3).sub.2 O.sub.1/2 ].sub.a [(CH.sub.3).sub.3 SiO.sub.1/2 ].sub.b [R.sup.2 O.sub.1/2 ].sub.c [R.sup.1 Si(CH.sub.3)O].sub.d [(CH.sub.3).sub.2 SiO].sub.e [SiO.sub.2 ],whereinR.sup.1 is a C.sub.2 -C.sub.8 -alkenyl group,R.sup.2 is an optionally substituted, linear or branched C.sub.1 -C.sub.8 -alkyl group or a mixture thereof,a+b+c+d+e is about 1 to 6,d+e is about 0 to 3,the resin has a viscosity of 0.1 to 1000 Pas at 25.degree. C., andthe alkenyl or vinyl content of the resin is in the range of 0.4 to 4 mmol/g,and their preparation by reacting at least one of tetraalkoxysilane and its partial hydrolyzate with at least one organosiloxane and a strong acid as catalyst in the presence of water and optionally an organic solvent at a temperature of about >40.degree. C. They are formulated into novel low viscosity polydiorganosiloxane compositions.Type: GrantFiled: March 9, 1999Date of Patent: May 16, 2000Assignee: GE Bayer Silicones GmbH & Co. KGInventors: Robert Friebe, Hubertus Eversheim
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Patent number: 5932668Abstract: Novel liquid organopolysiloxane resins of the average composition ?R.sup.1 Si(CH.sub.3).sub.2 O.sub.1/2 !.sub.a ?(CH.sub.3).sub.3 SiO.sub.1/2 !.sub.b ?R.sup.2 O.sub.1/2 !.sub.c ?R.sup.1 Si(CH.sub.3)O!.sub.d ?(CH.sub.3).sub.2 SiO!.sub.e ?SiO.sub.2 !,whereinR.sup.1 is a C.sub.2 -C.sub.8 -alkenyl group,R.sup.2 is an optionally substituted, linear or branched C.sub.1 -C.sub.8 -alkyl group or a mixture thereof,a+b+c+d+e is about 1 to 6,d+e is about 0 to 3,the resin has a viscosity of 0.1 to 1000 Pas at 25.degree. C., andthe alkenyl or vinyl content of the resin is in the range of 0.4 to 4 mmol/g,and their preparation by reacting at least one of tetraalkoxysilane and its partial hydrolyzate with at least one organosiloxane and a strong acid as catalyst in the presence of water and optionally an organic solvent at a temperature of about >40.degree. C. They are formulated into novel low viscosity polydiorganosiloxane compositions.Type: GrantFiled: August 21, 1996Date of Patent: August 3, 1999Assignee: GE Bayer Silicones GmbH & Co. KGInventors: Robert Friebe, Hubertus Eversheim
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Patent number: 5625024Abstract: The present invention relates to novel polysiloxane-polyether-based copolymers which contain T units and comprise randomly linked organopolysiloxane units and linear polyether units, to a method for their preparation and their use.Type: GrantFiled: March 23, 1995Date of Patent: April 29, 1997Assignee: Bayer AktiengesellschaftInventors: Sabine Schlitte, Hubertus Eversheim, Gebhard Wagner, Karl-Heinz K asler, Jan Mazanek, Hans-Ulrich Meier-Westhues
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Patent number: 5623026Abstract: Siloxanes containing epoxy groups having the formula 1 ##STR1## Formula 1 whereinA means a C.sub.1 -C.sub.20 alkyl radical with epoxy groupsB means R.sup.1 or AR.sup.1, R.sup.2 independently of each other, means C.sub.1 -C.sub.20 alkyl or C.sub.6 -C.sub.10 aryla means zero or a whole number from 1-100b means zero or a whole number from 1-100c means a whole number from 1-5.Type: GrantFiled: December 28, 1995Date of Patent: April 22, 1997Assignee: Bayer AktiengesellschaftInventors: Josef Buekers, Peter Bier, Sabine Schlitte, Hubertus Eversheim, Helmut-Martin Meier