Patents by Inventor Irene Trötsch-Schaller
Irene Trötsch-Schaller 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: 11060044Abstract: The present invention relates to a copolymer obtainable by copolymerization of (A) at least one unsaturated dicarboxylic acid or derivatives thereof, (B) at least one ?-olefin having from at least 6 up to and including 20 carbon atoms, (C) optionally at least one C3- to C20-alkyl ester of acrylic acid or methacrylic acid or a mixture of such alkyl esters and (D) optionally one or more further copolymerizable monomers other than monomers (A), (B) and (C), with a molar incorporation ratio of (A):(B):(C):(D) of 1:0.5 to 2.0:0 to less than 0.5:0 to 0.1 followed by the reaction with at least one dialkylamine (E), where the two alkyl radicals in the at least one dialkylamine (E) are independently alkyl radicals having at least 17 up to 30 carbon atoms.Type: GrantFiled: May 16, 2017Date of Patent: July 13, 2021Assignee: BASF SEInventors: Irene Troetsch-Schaller, Ivette Garcia Castro, Michael Schroers, Uwe Rebholz, Dieter Faul, Anke Oswald
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Publication number: 20200308501Abstract: The present invention relates to a copolymer obtainable by copolymerization of (A) at least one unsaturated dicarboxylic acid or derivatives thereof, (B) at least one ?-olefin having from at least 6 up to and including 20 carbon atoms, (C) optionally at least one C3- to C20-alkyl ester of acrylic acid or methacrylic acid or a mixture of such alkyl esters and (D) optionally one or more further copolymerizable monomers other than monomers (A), (B) and (C), with a molar incorporation ratio of (A):(B):(C):(D) of 1:0.5 to 2.0:0 to less than 0.5:0 to 0.1 followed by the reaction with at least one dialkylamine (E), where the two alkyl radicals in the at least one dialkylamine (E) are independently alkyl radicals having at least 17 up to 30 carbon atoms.Type: ApplicationFiled: May 16, 2017Publication date: October 1, 2020Applicant: BASF SEInventors: Irene TROETSCH-SCHALLER, Ivette GARCIA CASTRO, Michael SCHROERS, Uwe REBHOLZ, Dieter FAUL, Anke OSWALD
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Patent number: 10557096Abstract: The present invention relates to a novel copolymer, to processes for preparation thereof and to the use thereof.Type: GrantFiled: November 11, 2015Date of Patent: February 11, 2020Assignee: BASF SEInventors: Irene Troetsch-Schaller, Ivette Garcia Castro, Michael Schroers, Uwe Rebholz, Hubert Rehberger, Dieter Faul
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Patent number: 10526558Abstract: The use is described of polymers which contain, in copolymerized form, an ?-olefin, a vinyl ester and an ester of an ?,?-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. In addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.Type: GrantFiled: July 26, 2018Date of Patent: January 7, 2020Assignee: BASF SEInventors: Wolfgang Ahlers, Andreas Fechtenkoetter, Frank-Olaf Maehling, Irene Troetsch-Schaller, Ansgar Eisenbeis
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Publication number: 20180334631Abstract: The use is described of polymers which contain, in copolymerized form, an ?-olefin, a vinyl ester and an ester of an ?,?-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. In addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.Type: ApplicationFiled: July 26, 2018Publication date: November 22, 2018Applicant: BASF SEInventors: Wolfgang Ahlers, Andreas Fechtenkoetter, Frank-Olaf Maehling, Irene Troetsch-Schaller, Ansgar Eisenbeis
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Patent number: 10047314Abstract: The use is described of polymers which contain, in copolymerized form, an ?-olefin, a vinyl ester and an ester of an ?,?-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. In addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.Type: GrantFiled: February 6, 2017Date of Patent: August 14, 2018Assignee: BASF SEInventors: Wolfgang Ahlers, Andreas Fechtenkoetter, Frank-Olaf Maehling, Irene Troetsch-Schaller, Ansgar Eisenbeis
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Patent number: 9908955Abstract: 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: GrantFiled: March 22, 2016Date of Patent: March 6, 2018Assignee: BASF SEInventors: Frank-Olaf Maehling, Jan Strittmatter, Irene Troetsch-Schaller, Ivette Garcia-Castro, Michael Schroers, Uwe Rebholz
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Publication number: 20170355916Abstract: The present invention relates to a novel copolymer, to processes for preparation thereof and to the use thereof.Type: ApplicationFiled: November 11, 2015Publication date: December 14, 2017Applicant: BASF SEInventors: Irene TROETSCH-SCHALLER, Ivette GARCIA CASTRO, Michael SCHROERS, Uwe REBHOLZ, Hubert REHBERGER, Dieter FAUL
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Publication number: 20170145335Abstract: The use is described of polymers which contain, in copolymerized form, an ?-olefin, a vinyl ester and an ester of an ?,?-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. In addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.Type: ApplicationFiled: February 6, 2017Publication date: May 25, 2017Applicant: BASF SEInventors: Wolfgag Ahlers, Andreas Fechtenkoetter, Frank-Olaf Maehling, Irene Troetsch-schaller, Ansgar Eisenbeis
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Patent number: 9605227Abstract: The use is described of polymers which contain, in copolymerized form, an ?-olefin, a vinyl ester and an ester of an ?,?-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. In addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.Type: GrantFiled: December 20, 2013Date of Patent: March 28, 2017Assignee: BASF SEInventors: Wolfgang Ahlers, Andreas Fechtenkoetter, Frank-Olaf Maehling, Irene Troetsch-Schaller, Ansgar Eisenbeis
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Patent number: 9458401Abstract: 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: GrantFiled: March 4, 2013Date of Patent: October 4, 2016Assignee: BASF SEInventors: Jan Strittmatter, Karl Haeberle, Wolfgang Grabarse, Ivette Garcia Castro, Markus Hansch, Irene Troetsch-Schaller, Stephan Schenk, Michael Schroers, Bernhard Lange
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Publication number: 20160200844Abstract: 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: March 22, 2016Publication date: July 14, 2016Applicant: BASF SEInventors: Frank-Olaf MAEHLING, Jan STRITTMATTER, Irene TROETSCH-SCHALLER, Ivette GARCIA-CASTRO, Michael SCHROERS, Uwe REBHOLZ
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Patent number: 8790424Abstract: 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: GrantFiled: March 28, 2012Date of Patent: July 29, 2014Assignee: BASF SEInventors: Ivette Garcia Castro, Uwe Rebholz, Irene Troetsch-Schaller, Markus Brym, Jan Strittmatter, Michael Schroers
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Publication number: 20140142270Abstract: 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: January 27, 2014Publication date: May 22, 2014Applicant: BASF SEInventors: Frank-Olaf MAEHLING, Jan Strittmatter, Irene Troetsch-Schaller, Ivette Garcia-Castro, Michael Schroers, Uwe Rebholz
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Patent number: 8721744Abstract: 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: GrantFiled: July 5, 2011Date of Patent: May 13, 2014Assignee: BASF SEInventors: Frank-Olaf Maehling, Jan Strittmatter, Irene Troetsch-Schaller, Ivette Garcia Castro, Michael Schroers, Uwe Rebholz
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Publication number: 20140107005Abstract: The use is described of polymers which contain, in copolymerized form, an ?-olefin, a vinyl ester and an ester of an ?,?-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. En addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.Type: ApplicationFiled: December 20, 2013Publication date: April 17, 2014Applicant: BASF SEInventors: Wolfgang Ahlers, Andreas Fechtenkoetter, Frank-Olaf Maehling, Irene Troetsch-schaller, Ansgar Eisenbeis
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Patent number: 8642521Abstract: The use is described of polymers which contain, in copolymerized form, an ?-olefin, a vinyl ester and an ester of an ?,?-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. In addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.Type: GrantFiled: January 21, 2011Date of Patent: February 4, 2014Assignee: BASF SEInventors: Wolfgang Ahlers, Andreas Fechtenkoetter, Frank-Olaf Maehling, Irene Troetsch-Schaller, Ansgar Eisenbeis
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Publication number: 20130232858Abstract: The use of substituted monoureas, diureas, polyureas, monourethanes, 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 comprise 4 carbon atoms and where the urea or urethane functionality may be replicated via bridging members, for further improvement of the cold flow properties of mineral oils and crude oils which already comprise further organic compounds suitable for dispersion or for promoting dispersion of paraffin crystals which precipitate under cold conditions, and organic compounds which improve the cold flow characteristics of mineral oils and crude oils.Type: ApplicationFiled: March 1, 2013Publication date: September 12, 2013Applicant: BASF SEInventors: Jan STRITTMATTER, Karl HAEBERLE, Wolfgang GRABARSE, Ivette GARCIA CASTRO, Markus HANSCH, Irene TROETSCH-SCHALLER, Stephan SCHENK, Michael SCHROERS, Bernhard LANGE
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Patent number: 8496716Abstract: Polyisobutenylphenol-containing Mannich adducts are prepared by a) alkylation of a phenol with highly reactive polyisobutene at below about 50° C. in the presence of an alkylation catalyst; b) reaction of the reaction product from a) with formaldehyde, an oligomer or a polymer of formaldehyde and at least one amine which has at least one secondary amino function and no primary amino function, or c) reaction of the reaction product from a) with at least one adduct of at least one amine which has at least one secondary or primary amino function and formaldehyde, an oligomer of formaldehyde, a polymer of formaldehyde or a formaldehyde equivalent, and are used as detergent additives in fuel and lubricant compositions, and additive concentrates, fuel compositions and lubricant compositions contain these Mannich adducts.Type: GrantFiled: June 24, 2011Date of Patent: July 30, 2013Assignee: BASF SEInventors: Arno Lange, Hans Peter Rath, Dietmar Posselt, Irene Troetsch-Schaller, Marc Walter
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Patent number: 8338344Abstract: The invention relates to the use of polymers which comprise, in copolymerized form, an ?-olefin, at least one alkenyl ester and at least one ester of an ?,?-unsaturated carboxylic acid with higher alcohols as an additive for fuel oils and lubricants and especially as a cold flow improver in fuel oils; to the fuel oils and lubricants additized with these polymers; and to additive packages comprising such copolymers. The invention also relates to quaternary and higher copolymers which comprise the abovementioned monomers in copolymerized form.Type: GrantFiled: November 16, 2007Date of Patent: December 25, 2012Assignee: BASF AktiengesellschaftInventors: Frank-Olaf Maehling, Thomas Pfeiffer, Uwe Rebholz, Irene Troetsch-Schaller, Thomas Zelinski