Patents by Inventor Rene Koschabek
Rene Koschabek 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: 20250034309Abstract: The present invention relates to a comb copolymer comprising in polymerized form up to 40 wt % of a PIB macromonomer of the formula (I) and a hydrophobic monomer of the formula (II). The invention further relates to a method of preparing the PIB macromonomer of the formula (I) where a polyisobutene amine of the formula (IV) is reacted with (meth)acrylic acid anhydride; and to a lubricant comprising a base oil, the comb copolymer, and further lubricant additives; and to a use of the comb copolymer for improving the viscosity index of a lubricating oil.Type: ApplicationFiled: November 29, 2022Publication date: January 30, 2025Inventors: Ivette GARCIA CASTRO, Rene KOSCHABEK, Andrea MISSKE, Christoph FLECKENSTEIN
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Publication number: 20240228905Abstract: A gear oil composition that has a kinematic viscosity at 40° C. in the range of ?68 to ?1000 csdt when measured in accordance with ASTM D445 can be made. The gear oil composition is useful as a lubricant in a gear box, especially in a wind turbine gear box.Type: ApplicationFiled: March 7, 2024Publication date: July 11, 2024Applicant: BASF SEInventors: Qinggao MA, Rene Koschabek, Philippe Rabbat, Henrik Heinemann, Karolin Monz, Frank Rittig, Nawid Kashani, Markus Scherer
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Patent number: 11952551Abstract: The presently claimed invention relates to a gear oil composition having a kinematic viscosity at 40° C. in the range of ?68 to ?1000 cSt when measured in accordance with ASTM D445. The gear oil composition is useful as a lubricant in a gear box, especially in a wind turbine gear box.Type: GrantFiled: December 18, 2019Date of Patent: April 9, 2024Assignee: BASF SEInventors: Qinggao Ma, Rene Koschabek, Philippe Rabbat, Henrik Heinemann, Karolin Monz, Frank Rittig, Nawid Kashani, Markus Scherer
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Patent number: 11879108Abstract: The present invention relates to a middle-pressure polymerization process for the preparation of a liquid ethylene copolymer which comprises in polymerized form 20 to 60 wt % of ethylene; and at least 20 wt % of an acrylate, which is selected from C1-C22 alkyl (meth)acrylate, where a monomer mix comprising the ethylene and the acrylate is polymerized at a pressure of 50 to 400 bar and in the presence of at least 2 wt % of a chain transfer agent. The invention further relates to a liquid ethylene copolymer obtainable by the polymerization process; and to a lubricant comprising the liquid ethylene copolymer obtainable by the polymerization process; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the ethylene copolymer.Type: GrantFiled: March 23, 2020Date of Patent: January 23, 2024Assignee: BASF SEInventors: Ivette Garcia Castro, Wolfgang Grabarse, Jan Strittmatter, Rene Koschabek, Robert Rupaner
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Publication number: 20230313063Abstract: The invention relates to a use of a lubricant comprising a polyalkylene glycol for reducing white etching cracks in lubricated metal surfaces; and to a method for reducing white etching cracks in lubricated metal surfaces comprising the steps of lubricating the metal surfaces with a lubricant comprising the polyalkylene glycol.Type: ApplicationFiled: August 27, 2021Publication date: October 5, 2023Inventors: Frank RITTIG, Rene KOSCHABEK
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Patent number: 11667864Abstract: Lubricants with a terpolymer made of diester, olefin and acrylate The invention relates to a lubricant comprising a terpolymer which comprises in polymerized forma diester selected from di(C4-C22 alkyl)ester of maleic acid, fumaric acid, 2-methylmaleic acid, 2,3-dimethylmaleic acid, 2-methylfumaric acid, 2,3-dimethylfumaric acid, or mixtures thereof, an olefin selected from C6-C40 alky-1-ene, and an acrylate selected from C4-C40 alkyl (meth)acrylate. The invention further relates to the terpolymer, a process for preparing the terpolymer comprising the step of polymerizing the diester, the olefin, and the acrylate; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the terpolymer.Type: GrantFiled: October 8, 2019Date of Patent: June 6, 2023Assignee: BASF SEInventors: Ivette Garcia Castro, Wolfgang Grabarse, Jan Strittmatter, Markus Scherer, Karolin Monz, Rene Koschabek
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Patent number: 11498986Abstract: The present invention relates to a continuous high-pressure polymerization process for the preparation of a liquid ethylene copolymer which comprises in polymerized form 20 to 60 wt % of ethylene; and at least 20 wt % of an acrylate, which is selected from C1-C22 alkyl (meth)acrylate, where a monomer feed comprising the ethylene and the acrylate is polymerized in the presence of at least 2 wt % of a chain transfer agent. The invention further relates to the liquid ethylene copolymer obtainable by the polymerization process; and to a lubricant comprising the liquid ethylene copolymer obtainable by the polymerization process; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the ethylene copolymer.Type: GrantFiled: March 14, 2019Date of Patent: November 15, 2022Assignee: BASF SEInventors: Martin Wendker, Ivette Garcia Castro, Jan Strittmatter, Karolin Geyer, Wolfgang Grabarse, Markus Scherer, Rene Koschabek
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Patent number: 11453836Abstract: The present invention relates to a lubricant comprising a liquid ethylene copolymer which comprises in polymerized form 20 to 60 wt % of ethylene; and at least 20 wt % of an acrylate, which is selected from C1-C22 alkyl (meth)acrylate. It further relates to the liquid ethylene copolymer; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the ethylene copolymer.Type: GrantFiled: March 14, 2019Date of Patent: September 27, 2022Assignee: BASF SEInventors: Martin Wendker, Ivette Garcia Castro, Jan Strittmatter, Karolin Geyer, Wolfgang Grabarse, Markus Scherer, Rene Koschabek
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Publication number: 20220177799Abstract: The present invention relates to a middle-pressure polymerization process for the preparation of a liquid ethylene copolymer which comprises in polymerized form 20 to 60 wt % of ethylene; and at least 20 wt % of an acrylate, which is selected from C1-C22 alkyl (meth)acrylate, where a monomer mix comprising the ethylene and the acrylate is polymerized at a pressure of 50 to 400 bar and in the presence of at least 2 wt % of a chain transfer agent. The invention further relates to a liquid ethylene copolymer obtainable by the polymerization process; and to a lubricant comprising the liquid ethylene copolymer obtainable by the polymerization process; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the ethylene copolymer.Type: ApplicationFiled: March 23, 2020Publication date: June 9, 2022Inventors: Ivette GARCIA CASTRO, Wolfgang GRABARSE, Jan STRITTMATTER, Rene KOSCHABEK, Robert RUPANER
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Publication number: 20220064563Abstract: The presently claimed invention relates to a gear oil composition having a kinematic viscosity at 40° C. in the range of ?68 to ?1000 cSt when measured in accordance with ASTM D445. The gear oil composition is useful as a lubricant in a gear box, especially in a wind turbine gear box.Type: ApplicationFiled: December 18, 2019Publication date: March 3, 2022Inventors: Qinggao MA, Rene KOSCHABEK, Philippe RABBAT, Henrik HEINEMANN, Karolin MONZ, Frank RITTIG, Nawid KASHANI, Markus SCHERER
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Publication number: 20210348079Abstract: Lubricants with a terpolymer made of diester, olefin and acrylate The invention relates to a lubricant comprising a terpolymer which comprises in polymerized forma diester selected from di(C4-C22 alkyl)ester of maleic acid, fumaric acid, 2-methylmaleic acid, 2,3-dimethylmaleic acid, 2-methylfumaric acid, 2,3-dimethylfumaric acid, or mixtures thereof, an olefin selected from C6-C40 alky-1-ene, and an acrylate selected from C4-C40 alkyl (meth)acrylate. The invention further relates to the terpolymer, a process for preparing the terpolymer comprising the step of polymerizing the diester, the olefin, and the acrylate; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the terpolymer.Type: ApplicationFiled: October 8, 2019Publication date: November 11, 2021Inventors: Ivette GARCIA CASTRO, Wolfgang GRABARSE, Jan STRITTMATTER, Markus SCHERER, Karolin MONZ, Rene KOSCHABEK
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Publication number: 20210246395Abstract: The present invention relates to a lubricant comprising a liquid ethylene copolymer which comprises in polymerized form 20 to 60 wt % of ethylene; and at least 20 wt % of an acrylate, which is selected from C1-C22 alkyl (meth)acrylate. It further relates to the liquid ethylene copolymer; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the ethylene copolymer.Type: ApplicationFiled: March 14, 2019Publication date: August 12, 2021Inventors: Martin WENDKER, Ivette GARCIA CASTRO, Jan STRITTMATTER, Karolin GEYER, Wolfgang GRABARSE, Markus SCHERER, Rene KOSCHABEK
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Publication number: 20210095061Abstract: The present invention relates to a continuous high-pressure polymerization process for the preparation of a liquid ethylene copolymer which comprises in polymerized form 20 to 60 wt % of ethylene; and at least 20 wt % of an acrylate, which is selected from C1-C22 alkyl (meth)acrylate, where a monomer feed comprising the ethylene and the acrylate is polymerized in the presence of at least 2 wt % of a chain transfer agent. The invention further relates to the liquid ethylene copolymer obtainable by the polymerization process; and to a lubricant comprising the liquid ethylene copolymer obtainable by the polymerization process; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the ethylene copolymer.Type: ApplicationFiled: March 14, 2019Publication date: April 1, 2021Inventors: Martin WENDKER, Ivette GARCIA CASTRO, Jan STRITTMATTER, Karolin GEYER, Wolfgang GRABARSE, Markus SCHERER, Rene KOSCHABEK
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Patent number: 10131776Abstract: The present invention describes a composition comprising at least one polyalkyl(meth)acrylate polymer having a number average molecular weight Mn of from 1000 to 10000 g/mol and a polydispersity Mw/Mn of from 1 to 8 and at least one ethylene vinyl acetate copolymer comprising units being derived from at least one alkyl (meth)acrylate having 1 to 30 carbon atoms in the alkyl residue. The composition is useful as cold flow improver in fossil fuel oil and or biodiesel fuel oil.Type: GrantFiled: July 21, 2010Date of Patent: November 20, 2018Assignee: EVONIK OIL ADDITIVES GmbHInventors: Ronny Sondjaja, Rene Koschabek, Markus Weber, Jane Benito, Jian Mike Liu, Torsten Stoehr
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Patent number: 9540575Abstract: The present invention relates to a lubricant composition for a process for reducing the paraffin content of mineral oil compositions, by providing a mineral oil composition with a dewaxing aid, cooling to form a paraffin precipitate and at least partly removing the paraffin precipitate formed. The dewaxing aid used is a copolymer mixture comprising at least three copolymers, the copolymers differing in the composition of the repeat units.Type: GrantFiled: February 6, 2012Date of Patent: January 10, 2017Assignee: Evonik Oil Additives GmbHInventors: Rene Koschabek, Torsten Stoehr, Markus Weber, Andre Unglert, Wolfgang Tschepat
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Patent number: 9200233Abstract: The invention relates to a (meth)acrylate polymer for improving the viscosity index, which comprises a) from 5 to 60 wt % of repeating units that are derived from (meth)acrylates of formula (I), where R represents hydrogen or methyl and R1 is an alkyl radical having from 1 to 6 carbon atoms, b) from 5 to 80 wt % of repeating units that are derived from (meth)acrylates of formula (II), where R is hydrogen or methyl and R2 is an alkyl radical having from 7 to 30 carbon atoms, and c) from 15 to 90 wt % of repeating units that are derived from (meth)acrylates of formula (III), where R is hydrogen or methyl, n is an integer in the range of 2 to 500 and A is C2-C4 alkylene and R3 is a hydrogen atom or an alkyl radical having from 1 to 4 carbon atoms.Type: GrantFiled: December 8, 2010Date of Patent: December 1, 2015Assignee: Evonik RohMax Additives GmbHInventors: Rene Koschabek, Sandra Kuenzel, Markus Weber, Thorsten Bartels, Christoph Wincierz
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Publication number: 20150059238Abstract: The present invention relates to the use of polyalkyl(meth)acrylates as an additive to fuels, especially middle distillate fuels and blends thereof. The present invention further relates to the use of a composition comprising polyalkyl(meth)acrylates as dispersing species susceptible to disperse waxes and sludgy material at low temperatures and a hydrocarbon solvent/an oil for improving the cold flow properties of fuel oil and fuel oil compositions. The present invention further relates to the use of these compositions as an additive to fuels, especially in the function of paraffin dispersant, to such fuels themselves and to fuel additive concentrates which comprise this composition dissolved in a hydrocarbon solvent or an oil.Type: ApplicationFiled: April 22, 2013Publication date: March 5, 2015Applicant: EVONIK OIL ADDITIVES GMBHInventors: Julien Couet, Frank-Olaf Maehling, Rene Koschabek, Sandra Kuenzel
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Patent number: 8901231Abstract: The present invention relates to a process for preparing poly(meth)acrylate-graft-polylactone polyols.Type: GrantFiled: November 25, 2010Date of Patent: December 2, 2014Assignee: Evonik Degussa GmbHInventors: Thorsten Brand, Gabriele Brenner, Cornelia Borgmann, Rene Koschabek, Sven Balk
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Patent number: 8809412Abstract: The present invention relates to the use of oligomeric siloxane components in radiation-curable formulations which in the cured state offer a particular degree of corrosion control for metallic substrates.Type: GrantFiled: June 4, 2008Date of Patent: August 19, 2014Assignee: Evonik Degussa GmbHInventors: Emmanouil Spyrou, Rene Koschabek, Burkhard Standke
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Publication number: 20130306523Abstract: The present invention relates to a lubricant composition for a process for reducing the paraffin content of mineral oil compositions, by providing a mineral oil composition with a dewaxing aid, cooling to form a paraffin precipitate and at least partly removing the paraffin precipitate formed. The dewaxing aid used is a copolymer mixture comprising at least three copolymers, the copolymers differing in the composition of the repeat units.Type: ApplicationFiled: February 6, 2012Publication date: November 21, 2013Applicant: Evonik Oil Additives GmbHInventors: Rene Koschabek, Torsten Stoehr, Markus Weber, Andre Unglert, Wolfgang Tschepat