Patents by Inventor Boris Eisenberg
Boris Eisenberg 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: 11518955Abstract: Polyalkyl(meth)acrylates contain specified amounts of long-chain alkyl (meth)acrylates and functional monomers. Lubricant compositions can contain such polyalkyl(meth)acrylates, and the polyalkyl(meth)acrylates can be used as viscosity index (VI) improvers with good fuel economy as well as soot-dispersant function. The polyalkyl(meth)acrylates can provide equal or even unproved deposits in lubricant compositions, especially in engine oil (EO) compositions.Type: GrantFiled: March 18, 2020Date of Patent: December 6, 2022Assignee: Evonik Operations GmbHInventors: Katrin Schoeller, Fabian Ziegler, Boris Eisenberg, Dmitriy Shakhvorostov, Klaus Schimossek
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Patent number: 11453837Abstract: The invention relates to random copolymers comprising monomers derived from conjugated dienes and alkyl (meth)acrylates, a method for manufacturing the copolymers, lubricant compositions comprising the copolymers, and the use of the copolymers as additives for lubricant compositions or as a base oil for lubricant compositions. The copolymers are favorably used for driving system lubricating oils, hydraulic oils, engine oils and industrial oil formulations.Type: GrantFiled: October 23, 2019Date of Patent: September 27, 2022Assignee: Evonik Operations GmbHInventors: Holger Pletsch, Emily Clare Schweissinger, Hanna Spohr, Sebastian Reimann, Lars Pera, Marius Weiland, Boris Eisenberg, Dmitriy Shakhvorostov
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Publication number: 20220195325Abstract: Polyalkyl(meth)acrylates contain specified amounts of long-chain alkyl (meth)acrylates and functional monomers. Lubricant compositions can contain such polyalkyl(meth)acrylates, and the polyalkyl(meth)acrylates can be used as viscosity index (VI) improvers with good fuel economy as well as soot-dispersant function. The polyalkyl(meth)acrylates can provide equal or even unproved deposits in lubricant compositions, especially in engine oil (EO) compositions.Type: ApplicationFiled: March 18, 2020Publication date: June 23, 2022Applicant: Evonik Operations GmbHInventors: Katrin SCHOELLER, Fabian Ziegler, Boris Eisenberg, Dmitriy Shakhvorostov, Klaus Schimossek
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Publication number: 20220017654Abstract: The invention relates to a process for preparing random copolymers comprising monomers derived from conjugated diener and C7-C24 alkyl(meth)acrylates by free radical solution polymerization.Type: ApplicationFiled: October 23, 2019Publication date: January 20, 2022Inventors: Holger PLETSCH, Marius WEILAND, Emily Clare SCHWEISSINGER, Boris EISENBERG
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Publication number: 20220017835Abstract: The invention relates to random copolymers comprising monomers derived from conjugated dienes and alkyl (meth)acrylates, a method for manufacturing the copolymers, lubricant compositions comprising the copolymers, and the use of the copolymers as additives for lubricant compositions or as a base oil for lubricant compositions. The copolymers are favorably used for driving system lubricating oils, hydraulic oils, engine oils and industrial oil formulations.Type: ApplicationFiled: October 23, 2019Publication date: January 20, 2022Inventors: Holger PLETSCH, Emily Clare SCHWEISSINGER, Hanna SPOHR, Sebastian REIMANN, Lars PERA, Marius WEILAND, Boris EISENBERG, Dmitriy SHAKHVOROSTOV
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Publication number: 20200291218Abstract: Polyalkyl(meth)acrylate based polymers which include straight chained C18-24 alkyl(meth)acrylates and have an average carbon number of 7.0 to 7.5 and a weight-average molecular weight of 300,000 g/mol or greater are a useful component for a lubricant composition. Furthermore, lubricant compositions containing such polymers show improved high temperature-high shear performance, especially in engine oil (EO) compositions.Type: ApplicationFiled: March 10, 2020Publication date: September 17, 2020Applicant: Evonik Operations GmbHInventors: Tsuyoshi YUKI, Tomohiro Matsuda, Boris Eisenberg
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Patent number: 9914896Abstract: The present invention relates to a lubricant composition comprising at least one polyalkyl(meth)acrylate including repeating units derived from (meth)acrylates having 6 to 22 carbon atoms in the alcohol radical, wherein the polyalkyl(meth)acrylate includes repeating units derived from ethylenically unsaturated monomers having at least one covalently bonded phosphorus atom. The present invention further relates to a polyalkyl(meth)acrylate suitable for such a lubricant composition and to the use of a polyalkyl(meth)acrylate having repeating units derived from ethylenically unsaturated monomers having at least one covalently bonded phosphorus atom for reducing friction.Type: GrantFiled: April 19, 2012Date of Patent: March 13, 2018Assignee: Evonik Oil Additives GmbHInventors: Boris Eisenberg, Ellen Suchert
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Patent number: 9783630Abstract: The present invention relates to the use of comb polymers comprising, in the main chain, repeat units which are derived from polyolefin-based macromonomers, and repeat units which are derived from low molecular weight monomers selected from the group consisting of styrene monomers having 8 to 17 carbon atoms, alkyl (meth)acrylates having 1 to 10 carbon atoms in the alcohol group, vinyl esters having 1 to 11 carbon atoms in the acyl group, vinyl ethers having 1 to 10 carbon atoms in the alcohol group, (di)alkyl fumarates having 1 to 10 carbon atoms in the alcohol group, (di)alkyl maleates having 1 to 10 carbon atoms in the alcohol group and mixtures of these monomers, where the molar degree of branching is in the range of 0.Type: GrantFiled: April 10, 2008Date of Patent: October 10, 2017Assignee: Evonik Oil Additives GmbHInventors: Torsten Stoehr, Dieter Janssen, Juergen Schnabel, Boris Eisenberg, Hans Goerlitzer, Michael Mueller
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Patent number: 9777098Abstract: The invention relates to a polyalkyl (meth) acrylate for improving lubricating oil properties, which comprises repetition units which are derived from (meth) acrylates having 6 to 22 carbon atoms in the alcohol residues, and repetition units which are derived from amine derivatives of an ethylenically unsaturated monomer. The invention further relates to methods for producing and using the present polyalkyl (meth) acrylate.Type: GrantFiled: June 27, 2011Date of Patent: October 3, 2017Assignee: Evonik Oil Additives GmbHInventors: Boris Eisenberg, Dieter Janssen, Ellen Suchert, Miriam Kathrin Stihulka, Lucas Voigt
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Patent number: 9434903Abstract: The present invention relates to a component part comprising at least two components movable with respect to one another, between the surfaces of which is provided a film formed by a lubricant oil composition, the surface of at least one of the movable components being formed at least partly by a diamond-like-carbon layer (DLC layer) and the lubricant oil composition comprising at least one polymer comprising repeat units derived from amine derivatives of at least one polar ethylenically unsaturated monomer.Type: GrantFiled: May 10, 2012Date of Patent: September 6, 2016Assignee: Evonik Oil Additives GmbHInventors: Boris Eisenberg, Torsten Stoehr
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Publication number: 20160097017Abstract: The present invention relates to a transmission oil formulation comprising a base oil and a copolymer obtained by free-radical polymerization from a monomer composition. The invention also relates to the use of the transmission oil formulation as transmission oil for reducing the fuel consumption of motor vehicles.Type: ApplicationFiled: April 8, 2014Publication date: April 7, 2016Applicant: EVONIK OIL ADDITIVES GMBHInventors: Boris EISENBERG, Torsten STÖHR
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Patent number: 9175242Abstract: A lubricant which contains an ester oil and a polyalkyl(meth)acrylate copolymer having in copolymerized form a C1-C4 alkyl(meth)acrylate, and a C4-C4000 alkyl(meth)acrylate exhibits an improved Viscosity Index compared to a lubricant having no ester oil.Type: GrantFiled: June 11, 2010Date of Patent: November 3, 2015Assignee: Evonik RohMax Additives GmbHInventors: Christopher Paul Radano, Peter Moore, Mandi J. McElwain, Michael L. Alessi, Boris Eisenberg, Christoph Wincierz
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Patent number: 9080124Abstract: The invention relates to the use of graft polymers obtained by polymerization in two stages.Type: GrantFiled: June 23, 2005Date of Patent: July 14, 2015Assignee: EVONIK ROHMAX ADDITIVES GmbHInventors: Markus Scherer, Klaus Hedrich, Alexander Dardin, Michael Mueller, Torsten Stoehr, Boris Eisenberg
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Publication number: 20140274835Abstract: The invention concerns a method of increasing the dynamic coefficient of friction in an oil-lubricated friction clutch by using a lubricating oil containing at least one specific copolymer, the presence of which develops higher dynamic friction levels in the clutch.Type: ApplicationFiled: March 13, 2013Publication date: September 18, 2014Inventors: Raymond F. Watts, Joe R. Noles, JR., Michael Müller, Torsten Stöhr, Boris Eisenberg
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Publication number: 20140135242Abstract: The present invention relates to a lubricant composition comprising at least one polyalkyl(meth)acrylate including repeating units derived from (meth)acrylates having 6 to 22 carbon atoms in the alcohol radical, wherein the polyalkyl(meth)acrylate includes repeating units derived from ethylenically unsaturated monomers having at least one covalently bonded phosphorus atom. The present invention further relates to a polyalkyl(meth)acrylate suitable for such a lubricant composition and to the use of a polyalkyl(meth)acrylate having repeating units derived from ethylenically unsaturated monomers having at least one covalently bonded phosphorus atom for reducing friction.Type: ApplicationFiled: April 19, 2012Publication date: May 15, 2014Applicant: Evonik Oil Additives GmbHInventors: Boris Eisenberg, Ellen Suchert
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Patent number: 8722601Abstract: Copolymers are obtainable by polymerizing a monomer composition composed of a) 0% to 40% by weight of one or more ethylenically unsaturated ester compounds of the formula (I), b) 10% to 99.9% by weight of one or more ethylenically unsaturated ester compounds of the formula (II), c) 0% to 80% by weight of one or more ethylenically unsaturated ester compounds of the formula (III), d) 0.1% to 30% by weight of one or more ethylenically unsaturated, polar ester compounds of the formula (IV), e) 0% to 50% by weight of comonomer, based in each case on the total weight of the ethylenically unsaturated monomers.Type: GrantFiled: August 19, 2011Date of Patent: May 13, 2014Assignee: RohMax Additives GmbHInventors: Michael Mueller, Torsten Stoehr, Boris Eisenberg
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Publication number: 20140005084Abstract: The present invention relates to a component part comprising at least two components movable with respect to one another, between the surfaces of which is provided a film formed by a lubricant oil composition, the surface of at least one of the movable components being formed at least partly by a diamond-like-carbon layer (DLC layer) and the lubricant oil composition comprising at least one polymer comprising repeat units derived from amine derivatives of at least one polar ethylenically unsaturated monomer.Type: ApplicationFiled: May 10, 2012Publication date: January 2, 2014Applicant: Evonik Oil Additives GmbHInventors: Boris Eisenberg, Torsten Stoehr
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Publication number: 20130252866Abstract: The present invention relates to copolymers comprising ester groups and having at least one nonpolar segment P and at least one polar segment D, the polar segment D having at least 8 repeat units and the proportion by weight of dispersing repeat units in the polar segment D being at least 30%, based on the weight of the polar segment D, wherein the copolymer comprising ester groups is obtainable by NMP (nitroxide mediated polymerization). The invention further relates to lubricant oils having improved friction properties and comprising said copolymers.Type: ApplicationFiled: February 9, 2012Publication date: September 26, 2013Applicant: Evonik Oil Additives GmbHInventors: Torsten Stoehr, Boris Eisenberg, Ellen Suchert
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Publication number: 20130079265Abstract: The invention relates to a polyalkyl (meth) acrylate for improving lubricating oil properties, which comprises repetition units which are derived from (meth) acrylates having 6 to 22 carbon atoms in the alcohol residues, and repetition units which are derived from amine derivatives of an ethylenically unsaturated monomer. The invention further relates to methods for producing and using the present polyalkyl (meth) acrylate.Type: ApplicationFiled: June 27, 2011Publication date: March 28, 2013Applicant: Evonik Oil Additives GmbHInventors: Boris Eisenberg, Dieter Janssen, Ellen Suchert, Miriam Kathrin Stihulka, Lucas Voigt
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Patent number: 8288327Abstract: The invention relates to a lubricating oil composition with good frictional properties, the composition having a lubricating oil and at least one additive having friction-reducing properties. The additive with friction-reducing properties is a block copolymer having hydrophobic segments P and polar segments D. The hydrophobic segments are obtained by polymerization of monomer compositions having a) between 0 and 40 wt. %, in relation to the weight of the monomer compositions for producing the hydrophobic segments, of at least one ethylenically unsaturated ester compound of formula (I), in which R represents hydrogen or methyl, R1 represents a linear or branched alkyl radical having between 1 and 5 carbon atoms, and R2 and R3 independently represent hydrogen or a group of formula —COOR?, in which R? represents hydrogen or an alkyl group having between 1 and 5 carbon atoms.Type: GrantFiled: January 24, 2004Date of Patent: October 16, 2012Assignee: Evonik Rohmax Additives GmbHInventors: Alexander Dardin, Michael Mueller, Boris Eisenberg