Patents by Inventor Frank-Olaf Mahling
Frank-Olaf Mahling 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: 11965140Abstract: Low molecular weight polyalkyl acrylate polymers can be used as high viscosity base fluids. A corresponding method can be used for their preparation. Lubricant compositions may contain such low molecular weight polyalkyl acrylate polymers and the compositions may be used as automatic transmission fluids, manual transmission fluids, continuously variable transmission fluids, gear oil formulations, industrial gear oil formulations, axle fluid formulations, dual clutch transmission fluids, dedicated hybrid transmission fluids, or hydraulic oils.Type: GrantFiled: December 12, 2019Date of Patent: April 23, 2024Assignee: Evonik Operations GmbHInventors: Stefan Karl Maier, Michael Neusius, Qi Xiao, Gabriela Fedor, Stefan Hilf, Frank-Olaf Mähling
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Publication number: 20240043768Abstract: A method for the preparation of homo- and copolymers of alkyl (meth)acrylates having a low residual monomer content involves preparing a reaction mixture containing monomers, charging the reaction mixture, heating the reaction mixture, adding an additional monomer after initial monomer conversion, and optional further processing of the reaction mixture. The homo- and copolymers of alkyl (meth)acrylates obtained by this method as useful in lubricant applications.Type: ApplicationFiled: December 17, 2021Publication date: February 8, 2024Applicant: Evonik Operations GmbHInventors: Frank-Olaf Mähling, Maria Stimeier, Thomas Schimmel, Stefan Karl Maier, Sofia Sirak
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Publication number: 20230416634Abstract: Polyalkyl (meth)acrylates are useful in compressor oils. A method of increasing the energy efficiency of a compressor involves operating the compressor with a compressor oil containing a polyalkyl (meth)acrylate-based viscosity index improver.Type: ApplicationFiled: November 18, 2021Publication date: December 28, 2023Applicant: Evonik Operations GmbHInventors: Thomas SCHIMMEL, Frank-Olaf Mähling, Lucas Voigt
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Publication number: 20220372388Abstract: Low molecular weight polyalkyl acrylate polymers can be used as high viscosity base fluids. A corresponding method can be used for their preparation. Lubricant compositions may contain such low molecular weight polyalkyl acrylate polymers and the compositions may be used as automatic transmission fluids, manual transmission fluids, continuously variable transmission fluids, gear oil formulations, industrial gear oil formulations, axle fluid formulations, dual clutch transmission fluids, dedicated hybrid transmission fluids, or hydraulic oils.Type: ApplicationFiled: December 12, 2019Publication date: November 24, 2022Applicant: Evonik Operations GmbHInventors: Stefan Karl Maier, Michael Neusius, Qi Xiao, Gabriela Fedor, Stefan Hilf, Frank-Olaf Mähling
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Publication number: 20190300808Abstract: A lubricant composition with a comb polymer and a synthetic base oil has improved viscosity characteristics at low operating temperatures. In addition, a comb polymer can be used for producing a lubricant having an R-factor of less than or equal to 8, wherein the R-factor is defined as the ratio of the kinematic viscosity at ?20° C. and the kinematic viscosity at +20° C.Type: ApplicationFiled: October 27, 2017Publication date: October 3, 2019Applicant: Evonik Oil Additives GmbHInventors: Ronny Sondjaja, Frank-Olaf Mähling, Michael Alibert, Jennifer Holtzinger, Stefan Karl Maier
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Patent number: 10428292Abstract: Polyalkyl(meth)acrylate (PAMA) polymers comprising a certain amount of hydroxyl-functionalized alkyl (meth)acrylates can be used for improving the demulsibility performance of high VI lubricating oil compositions. The lubricating oil compositions can be those which are based on apolar base oils, especially hydraulic fluid compositions. The polymers can be comprised in certain lubricating oil compositions.Type: GrantFiled: August 9, 2017Date of Patent: October 1, 2019Assignee: Evonik Oil Additives GmbHInventors: Stefan Maier, Jürgen Gebhardt, Katrin Schöller, Frank-Olaf Mähling
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Publication number: 20190203147Abstract: Polyalkyl(meth)acrylate (PAMA) polymers comprising a certain amount of hydroxyl-functionalized alkyl (meth)acrylates can be used for improving the demulsibility performance of high VI lubricating oil compositions. The lubricating oil compositions can be those which are based on apolar base oils, especially hydraulic fluid compositions. The polymers can be comprised in certain lubricating oil compositions.Type: ApplicationFiled: August 9, 2017Publication date: July 4, 2019Applicant: Evonik Oil Additives GmbHInventors: Stefan MAIER, Jürgen GEBHARDT, Katrin SCHÖLLER, Frank-Olaf MÄHLING
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Publication number: 20170218295Abstract: The present invention relates to the use of hydraulic fluids in plastic injection molding processes. Thereby it was surprisingly found that the use of hydraulic fluids with the right combination of physical parameters like the viscosity grade, the viscosity index, the density and the dispersancy allows for significant energy savings in plastic injection molding processes (PIM). The PIM process is an industrial process to manufacture plastic parts at well controlled temperatures, pressures and cycle times. The energy consumption of the process became more important over the last years, however, other parameters like process stability and accuracy of plastic part parameters as well as machine protection and long oil drain intervals have to be satisfying.Type: ApplicationFiled: August 7, 2015Publication date: August 3, 2017Applicant: Evonik Oil Additives GmbHInventors: Frank Lauterwasser, Frank-Olaf Mähling, Robert Kolb, Thorsten Bartels, Thomas Schimmel, Stefan Maier, Michael Alibert
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Patent number: 9284505Abstract: The present invention describes a composition comprising at least one antioxidant 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 and oxidation stabilizer in fossil fuel oil and or biodiesel fuel oil.Type: GrantFiled: February 24, 2012Date of Patent: March 15, 2016Assignee: Evonik Oil Additives GmbHInventors: Ronny Sondjaja, Jane Benito, Gwen Teh, Frank-Olaf Mähling
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Publication number: 20150344801Abstract: The present application relates to compositions comprising at least one polyalkyl(meth)acrylate polymer, a graft copolymer comprising a copolymer based on ethylene as graft base and one or more polyalkyl(meth)acrylate polymer(s) grafted thereon, and at least one non-grafted ethylene-based copolymer, as well as to the use of such compositions to improve the performance, especially the cold flow properties and injector nozzle coking tendency of middle distillates, especially diesel fuels, biodiesel and blends thereof.Type: ApplicationFiled: February 3, 2014Publication date: December 3, 2015Applicant: EVONIK OIL ADDITIVES GMBHInventors: Frank-Olaf MÄHLING, Ronny SONDJAJA, Brian HESS, Julien COUET, Dennis THONG
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Publication number: 20150232783Abstract: The present invention describes a composition comprising: (A) at least one polyalkyl (meth) acrylate polymer having a number average molecular weight Mn of from 15000 to 75000 g/mol; (B) 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; (C) a phenolic type anti-oxidant; (D) a mixture stabilizer; and (E) a glycol ether solvent. The composition is useful as cold flow improver and oxidation stabilizer in vegetable oils and animal fats.Type: ApplicationFiled: September 6, 2013Publication date: August 20, 2015Applicant: EVONIK OIL ADDITIVES GMBHInventors: Rhishikesh GOKHALE, Ronny SONDJAJA, Lisa BRÜNNER, Frank-Olaf MÄHLING, Justin August LANGSTON, Torsten STÖHR, Jane BENITO, Gwen TEH
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Patent number: 8927669Abstract: Copolymers comprising as comonomers in copolymerized form: (a) ethylene, (b) one or more compounds of the general formula I (c) if appropriate, one or more alkenylphosphonic diesters, (d) if appropriate, one or more other free-radically copolymerizable comonomers, whose variables are defined as follows: R1 is selected from hydrogen and unbranched and branched C1-C10-alkyl, R2 is selected from hydrogen and unbranched and branched C1-C10-alkyl, R3 is selected from hydrogen, phenyl, benzyl, and unbranched and branched C1-C10-alkyl and unbranched and branched hydroxy-C2-C10-alkyl, as free acid or partially or completely neutralized with alkali metal, alkaline earth metal, ammonia or organic amine.Type: GrantFiled: January 5, 2007Date of Patent: January 6, 2015Assignee: BASF SEInventors: Thomas Pfeiffer, Helmut Witteler, Frank Dietsche, Thomas Heidenfelder, Frank-Olaf Mähling, Andreas Fechtenkötter, Michael Ehle, Fabio Nicolini
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Publication number: 20140033605Abstract: The present invention describes a composition comprising at least one antioxidant 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 and oxidation stabilizer in fossil fuel oil and or biodiesel fuel oil.Type: ApplicationFiled: February 24, 2012Publication date: February 6, 2014Applicant: Evonik Oil Additives GmbHInventors: Ronny Sondjaja, Jane Benito, Gwen Teh, Frank-Olaf Mähling
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Publication number: 20120232234Abstract: In a method of removing volatile oxidizable compounds from particles present in a container, a gas stream is continuously introduced into the container, the gas stream takes up the oxidizable compound from the particles in the container and a gas stream laden with the oxidizable compound is discharged from the container. In the method of the present invention, oxygen is added to the gas stream which has been discharged and the oxidizable compound present in the discharged gas stream is subsequently at least partly catalytically oxidized by means of the oxygen and this oxidized gas stream forms at least part of the gas stream introduced, so that the gas stream is circulated. This makes safe and inexpensive removal of the oxidizable compounds from the particles possible.Type: ApplicationFiled: May 21, 2012Publication date: September 13, 2012Applicant: BASELL POLYOLEFINE GMBHInventors: Frank-Olaf Mähling, Erich Neumann, Andre-Armand Finette, Ulrich Nieken
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Publication number: 20120231284Abstract: A method of coating surfaces of plastic or metal, which comprises treating the plastic or metal surface in question with an aqueous dispersion comprising (A) at least one ethylene copolymer having a molecular weight Mn in the range from 2000 to 20 000 g/mol, selected from ethylene copolymers comprising as comonomers in copolymerized form (a) 15.5% to 19.9% by weight of at least one ethylenically unsaturated C3-C10 carboxylic acid and (b) 80.1% to 84.5% by weight of ethylene, (B) at least one base, in one step and subsequently providing in at least one further step the metal or plastic surface in question with at least one further coat.Type: ApplicationFiled: May 15, 2012Publication date: September 13, 2012Applicant: BASF SEInventors: Heike Pfistner, Andreas Fechtenkötter, Frank-Olaf Mähling, Helmut Witteler, Frank Dietsche, Stefan Faßbender, Claudia Simon
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Patent number: 8119752Abstract: Process for the continuous preparation of ethylene copolymers by free-radical copolymerization of ethylene and at least one comonomer in a cascade comprising at least two reactors, wherein one or more initiators are fed into the reaction mixture downstream of the first reactor.Type: GrantFiled: May 16, 2007Date of Patent: February 21, 2012Assignee: BASF SEInventors: Frank-Olaf Mähling, Wolfgang Kasel, Thomas Zelinski
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Publication number: 20120005951Abstract: A copolymer with high chemical homogeneity, consisting of (A) 50 to 30% by weight of ethylene, (B) 50 to 70% by weight of C4- to C24-hydrocarbyl ester of (meth)acrylic acid, (C) 0 to 5% by weight of (meth)acrylic acid and (D) 0 to 10% by weight of copolymerizable monomers, obtainable by polymerizing a mixture of 80 to 60% by weight of ethylene, 20 to 40% by weight of (meth)acrylic acid and 0 to 10% by weight of copolymerizable monomers in a backmixing, continuous polymerization apparatus, and subsequently polymer-analogously esterifying the resulting copolymer with C4- to C24-hydrocarbinols. The inventive copolymer is suitable for improving the cold flow properties of fuel oils, for lowering the lower mixing temperature of cold flow improver additives into fuel oils, and for improving the filterability of fuel oils comprising cold flow improver additives.Type: ApplicationFiled: July 5, 2011Publication date: January 12, 2012Applicant: BASF SEInventors: Frank-Olaf Mähling, Jan Strittmatter, Irene Trötsch-Schaller, Ivette Garcia Castro, Michael Schroers, Uwe Rebholz
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Publication number: 20110271586Abstract: A terpolymer formed from (A) ethylene, (B) (i) C2- to C14-alkenyl esters of one or more aliphatic C1- to C20-monocarboxylic acids or (ii) C1- to C24-alkyl esters of acrylic acid or methacrylic acid and (C) olefinically unsaturated hydrocarbons selected from (iii) five- to seven-membered cycloalkenes and (iv) ?-olefins having 6 to 20 carbon atoms. The terpolymer mentioned is suitable as a cold flow improver in middle distillate fuels. It lowers the lower mixing temperature of cold flow improver additives into middle distillate fuels and improves the filterability of middle distillate fuels comprising cold flow improver additives.Type: ApplicationFiled: May 5, 2011Publication date: November 10, 2011Applicant: BASF SEInventors: Frank-Olaf MÄHLING, Jan Strittmatter, Irene Trötsch-Schaller, Ivette Garcia Castro, Thomas Zelinski
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Publication number: 20110184129Abstract: Process for the continuous preparation of ethylene copolymers by free-radical copolymerization of ethylene and at least one comonomer (b) selected from among ethylenically unsaturated carboxylic acids, esters of ethylenically unsaturated carboxylic acids, ethylenically unsaturated phosphonic acids and esters of ethylenically unsaturated phosphonic acids, wherein one or more inhibitors are metered separately from ethylene and the comonomer or comonomers (b) into the reaction mixture.Type: ApplicationFiled: May 15, 2007Publication date: July 28, 2011Applicant: BASF SEInventors: Frank-Olaf Mähling, Thomas Pfeiffer, Wolfgang Kasel, Heike Pfistner
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Publication number: 20110136967Abstract: Process for the continuous preparation of ethylene copolymers by free-radical copolymerization of ethylene and at least one comonomer in a cascade comprising at least two reactors, wherein one or more initiators are fed into the reaction mixture downstream of the first reactor.Type: ApplicationFiled: May 16, 2007Publication date: June 9, 2011Inventors: Frank-Olaf Mähling, Wolfgang Kasel, Thomas Zelinski