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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Publication number: 20120247001Abstract: 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: ApplicationFiled: March 28, 2012Publication date: October 4, 2012Applicant: BASF SEInventors: Ivette GARCIA CASTRO, Uwe Rebholz, Irene Trötsch-Schaller, Markus Brym, Jan Strittmatter, Michael Schroers
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Patent number: 8187345Abstract: Provided is a mixture containing: (a) a polar oil-soluble nitrogen compounds which is capable of sufficiently dispersing paraffin crystals precipitated out under cold conditions in a fuel and is a reaction product formed from reacting a poly(C2- to C20-carboxylic acid), which has at least one tertiary amino group, with a primary or secondary amine; (b) an oil-soluble acid amide reaction product formed from reacting a polyamide, which has from 2 to 1000 carbon atoms, with a C8- to C30-fatty acid or fatty acid-like compound, which has a free carboxyl group; and (c) an oil-soluble reaction product formed from reacting an ?,?-dicarboxylic acid, which has from 4 to 300 carbon atoms, or a derivatives thereof, with a primary alkylamine, wherein the sum of components (a) to (c) constitute 100 wt. % of the mixture. The mixture is suitable as a paraffin dispersant in fuels, especially those having a biodiesel content.Type: GrantFiled: June 12, 2007Date of Patent: May 29, 2012Assignee: BASF SEInventors: Ansgar Eisenbeis, Irene Troetsch-Schaller, Ulrich Annen
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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: 20110251114Abstract: 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: ApplicationFiled: June 24, 2011Publication date: October 13, 2011Applicant: BASF SEInventors: Arno LANGE, Hans Peter RATH, Dietmar POSSELT, Irene TRÖTSCH-SCHALLER, Marc WALTER
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Patent number: 8016898Abstract: Polyisobutenylphenol-containing Mannich adducts are prepared by a) alkylation of a phenol with highly reactive polyisobutene having a number average molecular weight of less than 1000 and a polydispersity of less than 3.0, at below about 50° C. in the presence of an alkylation catalyst; b) reaction of the reaction product from a) with b1) an aldehyde chosen from formaldehyde, an oligomer and a polymer of formaldehyde and b2) at least one amine which has at least one primary or one secondary amino function 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: October 5, 2000Date of Patent: September 13, 2011Assignee: BASF AktiengesellschaftInventors: Arno Lange, Hans Peter Rath, Dietmar Posselt, Irene Trötsch-Schaller, Marc Walter
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Patent number: 7988749Abstract: 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: April 28, 2008Date of Patent: August 2, 2011Assignee: BASF SEInventors: Arno Lange, Hans Peter Rath, Dietmar Posselt, Irene Troetsch-Schaller, Marc Walter
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Publication number: 20110118159Abstract: 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: January 21, 2011Publication date: May 19, 2011Applicant: BASF AktiengesellschaftInventors: Wolfgang AHLERS, Andreas Fechtenkötter, Frank-Olaf Mähling, Irene Trötsch-Schaller, Ansgar Eisenbeis
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Publication number: 20100293842Abstract: The invention relates to a method for producing additive mixtures for fuel oils by mixing at least two additive components in a dynamic mixer or a lamination mixer. The invention further relates to additive mixtures obtained by said method and fuel oil compositions containing said additive mixtures.Type: ApplicationFiled: January 21, 2009Publication date: November 25, 2010Applicant: BASF SEInventors: Wolfgang Kasel, Irene Troetsch-Schaller, Peter Spang, Frank-Olaf Maehling, Andreas Daiss, Andreas Bauder, Anja Vinckier, Stefan Hirsch, Matthias Frohberger, Siegfried Willert, Peter Schaeffler, Stephan Hoffmann
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Publication number: 20100048439Abstract: 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: ApplicationFiled: November 16, 2007Publication date: February 25, 2010Applicant: BASF SEInventors: Frank-Olaf Maehling, Thomas Pfeiffer, Uwe Rebholz, Irene Troetsch-Schaller, Thomas Zelinski
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Publication number: 20090307964Abstract: A cold-stabilized fuel oil composition comprising a major proportion by weight of a middle distillate fuel which boils in the range of 120-500° C. and minor proportions by weight of (A) at least one cold flow improver, (B) at least one detergent additive and (C) at least one cold solubilizer I which has at least one radical having at least 4 carbon atoms.Type: ApplicationFiled: June 10, 2009Publication date: December 17, 2009Applicant: BASF SEInventors: Frank-Olaf MAEHLING, Irene TROETSCH-SCHALLER, Heinrich LUBOJANSKI, Thomas PFEIFFER
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Publication number: 20090188159Abstract: Mixture of (a) polar oil-soluble nitrogen compounds which are capable of sufficiently dispersing paraffin crystals precipitated out under cold conditions in fuels, (b) oil-soluble acid amides formed from polyamides having from 2 to 1000 carbon atoms and C8- to C30-fatty acids or fatty acid-like compounds comprising free carboxyl groups and (c) oil-soluble reaction products formed from ?,?-dicarboxylic acids having 4 to 300 carbon atoms or derivatives thereof and primary alkylamines. The mixture mentioned is suitable as a paraffin dispersant in fuels, especially those having a biodiesel content.Type: ApplicationFiled: June 12, 2007Publication date: July 30, 2009Applicant: BASF SEInventors: Ansgar Eisenbeis, Irene Trötsch-Schaller, Ulrich Annen
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Patent number: 7250065Abstract: Fuel compositions for internal combustion engines, comprising a principle amount of a liquid hydrocarbon fuel and an amount, which has a cleaning effect, of at least one propoxylate additive of the formula I where n is an integer from 10 to 20 and R1 is straight-chain or branched C8-C18-alkyl or C8-C18-alkenyl, if required in combination with at least one detergent additive, e.g. a polyalkylamine additive of the formula II R2—NH2 ??(II) where R2 is a straight-chain or branched polyalkyl radical having a number average molecular weight of from about 500 to about 5000, and fuel additive compositions which contain propoxylates of the formula I and, if required, further additives, such as the aforementioned polyalkylamines of the formula II, as intake valve cleaners.Type: GrantFiled: July 8, 1999Date of Patent: July 31, 2007Assignee: BASF AktiengesellschaftInventors: Wolfgang Günther, Knut Oppenländer, Harald Schwahn, Irene Trötsch-Schaller
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Patent number: 6533830Abstract: Polyalkene alcohol polyalkoxylates R—(CH2)n—(O—A)m—OH, where R is a polyalkene radical derived from C2- to C30-alkenes and having a number average molecular weight from 300 to 5000, A is an alkylene group of 2 to 8 carbon atoms, m is a number up to 200, with the proviso that the oxygen in the oxyalkylate radical accounts for at least 16.5% by weight of the number average molecular weight of the total molecule I, and n is 0 or 1, are suitable as carrier oils in fuel and lubricant compositions.Type: GrantFiled: August 21, 2001Date of Patent: March 18, 2003Assignee: BASF AktiengesellschaftInventors: Knut Oppenländer, Wolfgang Günther, Hans Peter Rath, Irene Trötsch-Schaller
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Patent number: 6303832Abstract: Alkanols are oxyalkylated by a process in which the reaction is carried out using a heterogeneous basic catalyst which is selected from basic aluminates, and the compounds prepared thereby are used as carrier oils in fuel additives or as nonionic surfactants in detergents or cleaning agents.Type: GrantFiled: November 1, 2000Date of Patent: October 16, 2001Assignee: BASF AktiengesellschaftInventors: Irene Trötsch-Schaller, Günter Oetter, Knut Oppenländer, Michael Stösser
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Patent number: 6258281Abstract: A process for breaking down aromatics in industrial wastewaters that contain small amounts of aromatics by reaction with an ozone-containing oxygen stream at a temperature of from 40 to 70° C. and at a pH of from 4 to 7, involves treating industrial wastewaters that contain small amounts of aromatics in two stages with an oxygen stream that contains from 5 to 8% by volume of ozone with thorough mixing by causing the wastewater to flow upward through two reaction zones, the overflow of the wastewater at the top of the first reaction zone entering the second reaction zone at the base, the purified wastewater being obtained at the top of the second reaction zone, the ozone-containing oxygen stream first entering at the base of the second reaction zone, and the waste gas obtained at the top of the second reactor being introduced at the base of the first reaction zone, and, furthermore, a gas containing less than 0.2% by volume of ozone being obtained at the top of the first reaction zone.Type: GrantFiled: June 21, 1999Date of Patent: July 10, 2001Assignee: BASF AktiengesellschaftInventors: Edmund Niedbalski, Laurance Thurman, Irene Troetsch-Schaller, Ludwig Schuster, Dieter Voges, Peter Zehner, Klaus Bittins, Rudolf Schnur
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Patent number: 5569774Abstract: Chlorine-substituted olefins I ##STR1## (R.sup.1 =organic radical; R.sup.2 =--CN, --CO--R.sup.3, --CO--S--R.sup.3, --CO--O--R.sup.3 --CO--N(R.sup.4,R.sup.5); R.sup.3 =organic radical; R.sup.4, R.sup.5 =H, organic radical)are prepared by reacting oxiranes II ##STR2## in the presence of a carboxamide (IIIa) or of a lactam (IIIb) in liquid phase with a chlorinating agent (IV). The products I are important intermediates for dyes, drugs and crop protection agents.Type: GrantFiled: September 20, 1994Date of Patent: October 29, 1996Assignee: BASF AktiengesellschaftInventors: Bernd Schaefer, Irene Troetsch-Schaller
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Patent number: 5347047Abstract: Acylaromatic compounds are prepared from aromatic compounds and carboxylic acids by reacting the starting compounds with phosgene in the presence of an aliphatic phosphine oxide or of an N,N-dialkylformamide and of an Fe(II), Fe(III) or Zn(II) compound.Type: GrantFiled: December 1, 1993Date of Patent: September 13, 1994Assignee: BASF AktiengesellschaftInventors: Wolfgang Siegel, Irene Troetsch-Schaller
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Patent number: 5274164Abstract: A process for the preparation of aromatic aryl chloroformates of the general formula I ##STR1## in which Ar denotes an aryl radical optionally mono- to penta-substituted by C.sub.1 -C.sub.20 -alkyl, C.sub.2 -C.sub.20 -alkenyl, C.sub.3 -C.sub.8 -alkyl-cycloalkyl, C.sub.1 -C.sub.20 -haloalkyl, C.sub.1 -C.sub.20 -alkoxy, C.sub.1 -C.sub.20 -alkylthio, halo, cyano, C.sub.2 -C.sub.20 -alkylcarbonyloxy, C.sub.3 -C.sub.20 -carboalkoxy, formyl, C.sub.2 -C.sub.20 -dialkylamino, aryl, aryloxy, arylthio, aroyl, C.sub.7 -C.sub.20 -aralkyl, C.sub.7 -C.sub.20 -aralkoxy, arylsulfonyl and/or C.sub.7 -C.sub.20 -aralkylthio and/or optionally mono- or di-substituted by chloroformyl and/or nitro, from phosgene and phenols of the general formula IIAr--OH (II),in which Ar has the meanings stated above and optionally carries one or two hydroxy groups, wherein the reaction is carried out at a temperature of from 60.degree. to 180.degree. C.Type: GrantFiled: November 13, 1992Date of Patent: December 28, 1993Assignee: BASF AktiengesellschaftInventors: Thomas Wettling, Jochem Henkelmann, Irene Troetsch-Schaller, Hermann Koehler
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Patent number: 5200163Abstract: To remove phosgene from off-gases, the former is reacted in a washing zone with a liquid which contains or is composed of compounds of the formula ##STR1## where R.sub.1 and R.sub.2 are identical or different and are each aliphatic or cycloaliphatic alkyl of 1 to 8 carbons, or R.sub.1 and R.sub.2 are --(CH.sub.2).sub.n -- where n is 4 or 5, R.sub.3 is hydrogen or aliphatic or cycloaliphatic alkyl of 1 to 6 carbon atoms, or R.sub.1 or R.sub.2 and R.sub.3 are --(CH.sub.2).sub.m -- where m is 3, 4 or 5.The liquid can be regenerated by the addition of water, and the regenerated liquid can be returned to the washing zone.Type: GrantFiled: October 30, 1991Date of Patent: April 6, 1993Assignee: BASF AktiengesellschaftInventors: Jochem Henkelmann, Thomas M. Kahl, Irene Troetsch-Schaller, Leopold Hupfer, Wolfgang Franzischka, Wolfgang Schwarz