Patents by Inventor Jan Strittmatter

Jan Strittmatter 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).

  • Patent number: 11932819
    Abstract: The invention relates to a lubricant comprising a diester of adipic acid with a tridecanol mixture which comprises 20 to 60% of at least triply branched tridecanols, 10 to 50% doubly branched tridecanols, and 5 to 30% singly branched and/or linear tridecanols, and where the percentages are determined by gas chromatography.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: March 19, 2024
    Assignee: BASF SE
    Inventors: Markus Scherer, Jan Strittmatter, Boris Breitscheidel
  • Patent number: 11879108
    Abstract: 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: Grant
    Filed: March 23, 2020
    Date of Patent: January 23, 2024
    Assignee: BASF SE
    Inventors: Ivette Garcia Castro, Wolfgang Grabarse, Jan Strittmatter, Rene Koschabek, Robert Rupaner
  • Patent number: 11795414
    Abstract: The present invention relates to a method of processing a workpiece comprising contacting a tool and a workpiece to effect a change in the shape of the workpiece, and applying a metalworking fluid to a surface area where the tool and the workpiece are in contact, where the metalworking fluid contains a propoxylate of the formula R—O—(C3H6O)n—H, where R is a branched C6 to C20 alkyl and n is from 3 to 30. The invention further relates to the metalworking fluid, and to a use of the propoxylate as additive in metalworking fluids.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: October 24, 2023
    Inventors: Frank Rittig, Marcel Harhausen, Thorsten Schoeppe, Marcus Leubner, Lu Yi Zhang, Markus Hansch, Kian Molawi, Jan Strittmatter
  • Patent number: 11667864
    Abstract: 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: Grant
    Filed: October 8, 2019
    Date of Patent: June 6, 2023
    Assignee: BASF SE
    Inventors: Ivette Garcia Castro, Wolfgang Grabarse, Jan Strittmatter, Markus Scherer, Karolin Monz, Rene Koschabek
  • Patent number: 11498986
    Abstract: 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: Grant
    Filed: March 14, 2019
    Date of Patent: November 15, 2022
    Assignee: BASF SE
    Inventors: Martin Wendker, Ivette Garcia Castro, Jan Strittmatter, Karolin Geyer, Wolfgang Grabarse, Markus Scherer, Rene Koschabek
  • Patent number: 11453836
    Abstract: 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: Grant
    Filed: March 14, 2019
    Date of Patent: September 27, 2022
    Assignee: BASF SE
    Inventors: Martin Wendker, Ivette Garcia Castro, Jan Strittmatter, Karolin Geyer, Wolfgang Grabarse, Markus Scherer, Rene Koschabek
  • Publication number: 20220177799
    Abstract: 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: Application
    Filed: March 23, 2020
    Publication date: June 9, 2022
    Inventors: Ivette GARCIA CASTRO, Wolfgang GRABARSE, Jan STRITTMATTER, Rene KOSCHABEK, Robert RUPANER
  • Publication number: 20220162514
    Abstract: The present invention relates to a method of processing a workpiece comprising contacting a tool and a workpiece to effect a change in the shape of the workpiece, and applying a metalworking fluid to a surface area where the tool and the workpiece are in contact, where the metalworking fluid contains a propoxylate of the formula R—O—(C3H6O)n—H, where R is a branched C6 to C20 alkyl and n is from 3 to 30. The invention further relates to the metalworking fluid, and to a use of the propoxylate as additive in metalworking fluids.
    Type: Application
    Filed: April 1, 2020
    Publication date: May 26, 2022
    Inventors: Frank RITTIG, Marcel HARHAUSEN, Thorsten SCHOEPPE, Marcus LEUBNER, Lu Yi ZHANG, Markus HANSCH, Kian MOLAWI, Jan STRITTMATTER
  • Publication number: 20210388281
    Abstract: The invention relates to a lubricant comprising a diester of adipic acid with a tridecanol mixture which comprises 20 to 60% of at least triply branched tridecanols, 10 to 50% doubly branched tridecanols, and 5 to 30% singly branched and/or linear tridecanols, and where the percentages are determined by gas chromatography.
    Type: Application
    Filed: October 28, 2019
    Publication date: December 16, 2021
    Inventors: Markus SCHERER, Jan STRITTMATTER, Boris BREITSCHEIDEL
  • Publication number: 20210348079
    Abstract: 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: Application
    Filed: October 8, 2019
    Publication date: November 11, 2021
    Inventors: Ivette GARCIA CASTRO, Wolfgang GRABARSE, Jan STRITTMATTER, Markus SCHERER, Karolin MONZ, Rene KOSCHABEK
  • Publication number: 20210246395
    Abstract: 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: Application
    Filed: March 14, 2019
    Publication date: August 12, 2021
    Inventors: Martin WENDKER, Ivette GARCIA CASTRO, Jan STRITTMATTER, Karolin GEYER, Wolfgang GRABARSE, Markus SCHERER, Rene KOSCHABEK
  • Publication number: 20210198590
    Abstract: A lubricant comprising 2,5-(bishydroxymethyl) tetryhydrofuran dialkanoates This invention relates to a lubricant comprising a THF ester of the formula (I) as defined below. This invention further relates to a use of the THF ester as lubricant; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the THF ester.
    Type: Application
    Filed: May 13, 2019
    Publication date: July 1, 2021
    Inventors: Martin Alexander BOHN, Karolin GEYER, Wolfgang GRABARSE, Markus SCHERER, Muriel ECORMIER, Jan STRITTMATTER
  • Publication number: 20210095061
    Abstract: 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: Application
    Filed: March 14, 2019
    Publication date: April 1, 2021
    Inventors: Martin WENDKER, Ivette GARCIA CASTRO, Jan STRITTMATTER, Karolin GEYER, Wolfgang GRABARSE, Markus SCHERER, Rene KOSCHABEK
  • Patent number: 9908955
    Abstract: 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: Grant
    Filed: March 22, 2016
    Date of Patent: March 6, 2018
    Assignee: BASF SE
    Inventors: Frank-Olaf Maehling, Jan Strittmatter, Irene Troetsch-Schaller, Ivette Garcia-Castro, Michael Schroers, Uwe Rebholz
  • Patent number: 9458401
    Abstract: The use of substituted diureas, polyureas, bisurethanes or polyurethanes of the formula R1X—CO—NR3R4 in which X is R2N or O and R1 to R4 are each independently hydrogen, alkyl radicals, alkenyl radicals, cycloalkyl radicals, aryl radicals or arylalkyl radicals, where at least one variable must be a radical having at least 4 carbon atoms and where the urea or urethane functionality must be replicated via bridging members, for improvement of the use properties of mineral and synthetic nonaqueous industrial fluids.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: October 4, 2016
    Assignee: BASF SE
    Inventors: Jan Strittmatter, Karl Haeberle, Wolfgang Grabarse, Ivette Garcia Castro, Markus Hansch, Irene Troetsch-Schaller, Stephan Schenk, Michael Schroers, Bernhard Lange
  • Publication number: 20160251588
    Abstract: The present invention relates to the use of quaternized alkylamine nitrogen compounds as a fuel additive and lubricant additive, such as, more particularly, as a detergent additive; for reduction or prevention of deposits in the injection systems of direct injection diesel engines, especially in common rail injection systems, for reduction of the fuel consumption of direct injection diesel engines, especially of diesel engines with common rail injection systems, and for minimization of power loss in direct injection diesel engines, especially in diesel engines with common rail injection systems; and as an additive for gasoline fuels, especially for operation of DISI engines.
    Type: Application
    Filed: February 29, 2016
    Publication date: September 1, 2016
    Applicant: BASF SE
    Inventors: Markus HANSCH, Harald BOEHNKE, Ludwig VOELKEL, Wolfgang GRABARSE, Jan STRITTMATTER
  • Publication number: 20160200844
    Abstract: 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: Application
    Filed: March 22, 2016
    Publication date: July 14, 2016
    Applicant: BASF SE
    Inventors: Frank-Olaf MAEHLING, Jan STRITTMATTER, Irene TROETSCH-SCHALLER, Ivette GARCIA-CASTRO, Michael SCHROERS, Uwe REBHOLZ
  • Patent number: 8790424
    Abstract: A copolymer obtainable by free-radical copolymerization of (i) monomer units of the structure M1 in which the variables are each hydrogen, alkyl groups, carboxyl groups or carboxyl derivative moieties, and (ii) monomer units of the structure M2 in which R5 is the radical of a carboxylic ester of the formula -A-CO—O—R10 where A is an alkylene group and R10 is a hydrocarbyl radical, and in which R6, R7 and R8 are each hydrogen or alkyl radicals, and subsequent polymer-analogous reaction of the product formed with a long-chain hydrocarbyl alcohol. This copolymer is suitable for improving the cold flow properties of middle distillate fuels, especially those which consist of or comprise biofuel oils.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: July 29, 2014
    Assignee: BASF SE
    Inventors: Ivette Garcia Castro, Uwe Rebholz, Irene Troetsch-Schaller, Markus Brym, Jan Strittmatter, Michael Schroers
  • Publication number: 20140142270
    Abstract: 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: Application
    Filed: January 27, 2014
    Publication date: May 22, 2014
    Applicant: BASF SE
    Inventors: Frank-Olaf MAEHLING, Jan Strittmatter, Irene Troetsch-Schaller, Ivette Garcia-Castro, Michael Schroers, Uwe Rebholz
  • Patent number: 8721744
    Abstract: 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: Grant
    Filed: July 5, 2011
    Date of Patent: May 13, 2014
    Assignee: BASF SE
    Inventors: Frank-Olaf Maehling, Jan Strittmatter, Irene Troetsch-Schaller, Ivette Garcia Castro, Michael Schroers, Uwe Rebholz