Patents by Inventor Andreas Fechtenkotter
Andreas Fechtenkotter 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: 9441134Abstract: Disclosed is a process for preparing fluorinated core-shell polymer particles in which the core is a non-fluorinated polymer and the shell is derived from at least 50% by weight of fluorinated monomers, by 1) synthesizing a core polymer latex by aqueous emulsion polymerization of non-fluorinated monomers forming the core polymer, 2) adding the shell-forming fluorinated monomers or mixtures of at least 50% by weight of fluorinated monomers with non-fluorinated monomers to the core polymer latex of step 1) and allowing for at least one hour of equilibration time in which essentially no polymerization of the shell monomers occurs, 3) reacting the shell-forming monomers in the mixture from step 2) to form the core-shell polymer particles, wherein the process steps 1) to 3) are carried out under mechanical stirring in the absence of surfactants, emulsifiers, emulsifying monomers and mixtures thereof.Type: GrantFiled: June 2, 2010Date of Patent: September 13, 2016Assignee: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCHInventors: Parappuveetil Sarangadharan Suresh, Yoong Kim, Andreas Fechtenkotter, Han Hong, Christina Li Lin Chai, Xiaogang Yang, Yeap Hung Ng
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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: 20130171346Abstract: Disclosed is a process for preparing fluorinated core-shell polymer particles in which the core is a non-fluorinated polymer and the shell is derived from at least 50% by weight of fluorinated monomers, by 1) synthesizing a core polymer latex by aqueous emulsion polymerization of non-fluorinated monomers forming the core polymer, 2) adding the shell-forming fluorinated monomers or mixtures of at least 50% by weight of fluorinated monomers with non-fluorinated monomers to the core polymer latex of step 1) and allowing for at least one hour of equilibration time in which essentially no polymerization of the shell monomers occurs, 3) reacting the shell-forming monomers in the mixture from step 2) to form the core-shell polymer particles, wherein the process steps 1) to 3) are carried out under mechanical stirring in the absence of surfactants, emulsifiers, emulsifying monomers and mixtures thereof.Type: ApplicationFiled: June 2, 2010Publication date: July 4, 2013Applicants: BASF SE, A*STARInventors: Parappuveetil Sarangadharan Suresh, Yoong Kim, Andreas Fechtenkotter, Han Hong, Christina Li Lin Chai, Xiaogang Yang, Yeap Hung Ng
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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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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: 20110077363Abstract: The invention is directed to an antimicrobial composition obtainable by reacting in a first step at least one polyiso-cyanate A with at least one binder component B with at least two isocyanatereactive groups and at least one isocyanatereactive alkoxysilane C thus obtaining a polyurethane and subsequently hydrolysing the siloxy groups in the polyurethane in a second step in the presence of an antimicrobial agent Z which has a siloxy moiety and condensing the hydrolized siloxy groups resulting in the formation of a silica network covalently linked to a polyurethane and to the rest of the antimicrobial agent Z and the use of this composition as antimicrobial coating especially for interior applications.Type: ApplicationFiled: May 26, 2009Publication date: March 31, 2011Applicant: BASF SEInventors: Ramanujachary Manivannan, Thevigha S, Andreas Fechtenkötter
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Publication number: 20110076416Abstract: The present invention concerns a method of making a porous material comprising the following steps in the order a-b-c-d: (a) reacting at least one organosilane (A) with water in the presence of a solvent (C) to form a polymeric material, (b) subjecting said polymeric material to a first heat treatment, (c) bringing said polymeric material into contact with at least one dehydroxylation agent (D), (d) subjecting said polymeric material to electromagnetic radiation and/or to a further heat treatment. The present invention furthermore concerns the porous material obtainable by the inventive method, semiconductor devices and electronic components comprising said porous material, and the use of said material for electrical insulation and in microelectronic devices, membranes, displays and sensors.Type: ApplicationFiled: May 20, 2009Publication date: March 31, 2011Applicant: BASF SEInventors: Andreas Klipp, Norbert Wagner, Cyrill Zagar, Andreas Fechtenkötter, Chih-Cheng Peng, Chien Hsueh Steve Shih, Sujandi Sujandi
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Publication number: 20100273015Abstract: 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: ApplicationFiled: January 5, 2007Publication date: October 28, 2010Applicant: 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: 20100266792Abstract: Composite materials comprising at least one natural fiber, at least one thermoplastic polymer, and at least one random copolymer having a molar mass Mn of up to 20,000 g/mol. The random copolymer is produced from the copolymerization of ethylene and at least one comonomer. The comonomer is selected from the group consisting of ethylenically unsaturated C3-C10 monocarboxylic acids; ethylenically unsaturated C4-C10 dicarboxylic acids or their anhydrides; epoxy esters of ethylenically unsaturated C3-C10 monocarboxylic acids, and (b4) comonomers of the general formula I: wherein R1 and R2 are a hydrogen or an unbranched or branched C1-C10-alkyl; R3 is identical or different and is a hydrogen, unbranched and branched C1-C10-alkyl or C3-C12-cycloalkyl, where two radicals R3 may be bonded together to form a 3-10-membered ring; X is an oxygen, sulfur or N—R4; R4 is an unbranched or branched C1-C10-alkyl; and A1 is a divalent group selected from C1-C10-alkylene, C4-C10-cycyloalkylene, and phenylene.Type: ApplicationFiled: February 20, 2008Publication date: October 21, 2010Applicant: BASF SEInventors: Heike Pfistner, Andreas Fechtenkötter, Thomas Pfeiffer, Wolfgang Kasel, Michael Ehle, Bernd Düttra, Michael Neuss
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Publication number: 20100227179Abstract: A method of treating surfaces using one or more than one copolymer (A) comprising as comonomers in copolymerized form: (a) ethylene, (b) one or more alkenylphosphonic diesters, (c) if appropriate, one or more other free-radically copolymerizable comonomers.Type: ApplicationFiled: January 3, 2007Publication date: September 9, 2010Applicant: 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: 20090282732Abstract: 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: June 26, 2009Publication date: November 19, 2009Applicant: BASF AktiengesellschaftInventors: Wolfgang Ahlers, Andreas Fechtenkotter, Frank-Olaf Mahling, Irene Trotsch-Schaller, Ansgar Eisenbeis
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Publication number: 20090186231Abstract: 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 22, 2007Publication date: July 23, 2009Applicant: BASF SEInventors: Heike Pfistner, Andreas Fechtenkotter, Frank-Olaf Mähling, Helmut Witteler, Frank Dietsche, Stefan Fassbender, Claudia Simon
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Patent number: 7511107Abstract: An ethylene terpolymer wax comprising from 40 to 95% by weight of units of ethylene, from 0.1 to 40% by weight of units of at least one anhydride of a C4-C10-dicarboxylic acid having at least one ethylenic C—C double bond, and from 0.1 to 40% by weight of units of at least one ester of the formula I where R1 is selected from hydrogen, C1-C10-alkyl, C3-C12-cycloalkyl or C6-C14-aryl and R2 is selected from C1-C10-alkyl, C3-C12-cycloalkyl or C6-C14-aryl, having a molecular weight Mw of up to 20000 g/mol.Type: GrantFiled: November 12, 2003Date of Patent: March 31, 2009Assignee: BASF AktiengesellschaftInventors: Andreas Fechtenkötter, Katrin Zeitz, Michael Ehle, Andreas Deckers, Wolfgang Kasel
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Publication number: 20080300329Abstract: Modified open-cell foams with a density in the range from 5 to 1000 kg/m3 and with an average pore diameter in the range from 1 ?m to 1 mm, comprising an amount in the range from 1 to 2500% by weight based on the weight of the unmodified open-cell foam, of at least one polymer which is solid at room temperature and which contains carboxy groups and/or which contains carboxylic ester groups, and which has a molar mass Mn in the range from 1000 to 1000 000 g/mol.Type: ApplicationFiled: July 14, 2005Publication date: December 4, 2008Applicant: BASF AktiengesellschaftInventors: Andreas Fechtenkotter, Michael Ehle, Stefan Frenzel
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Publication number: 20080249204Abstract: Polyolefin waxes bearing (meth)acrylate groups, process for preparing them and their use.Type: ApplicationFiled: March 2, 2006Publication date: October 9, 2008Applicant: BASF AktiengesellschaftInventors: Dietmar Haring, Bernhard Hauer, Thomas Pfeiffer, Andreas Fechtenkotter, Harald Larbig, Erich Beck
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Publication number: 20080200604Abstract: A method for coating surfaces using (A) at least one ethylene copolymer wax selected from those ethylene copolymer waxes which comprise, incorporated in the form of polymerized comonomers, (a) from 15 to 40% by weight of at least one ethylenically unsaturated carboxylic acid and (b) from 60 to 85% by weight of ethylene, and those ethylene copolymer waxes which comprise, incorporated in the form of polymerized units, (a?) from 14.5 to 39.9% by weight of at least one ethylenically unsaturated carboxylic acid, (b?) from 60 to 79.4% by weight of ethylene and (c?) from 0.1 to 15% by weight of an ester of an ethylenically unsaturated carboxylic acid, in each case in at least partly neutralized form, and (B) at least one further wax which differs from ethylene copolymer wax (A).Type: ApplicationFiled: July 11, 2006Publication date: August 21, 2008Applicant: BASF AKTIENGESELLSCHAFTInventors: Andreas Fechtenkotter, Bernd Duttra, Michael Ehle, Martin Scholtissek
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Publication number: 20080194714Abstract: The present invention relates to a process for the production of workpieces, wherein (a) pieces of open-cell aminoplast foam having an average diameter in the range from 50 ?m to 5 mm (weight average) (b) are mixed with at least one film-forming polymer, subjected to a shape-imparting step and then dried.Type: ApplicationFiled: May 30, 2006Publication date: August 14, 2008Applicant: BASF AktiengesellschaftInventors: Christof Mock, Gunnar Schornick, Stefan Frenzel, Moritz Ehrenstein, Andreas Fechtenkotter, Antje Ziemer
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Publication number: 20080187669Abstract: (EN) The invention relates to a method for waterproofing lignocellulosic materials by impregnating the lignocellulosic material with a waterproofing agent, whereby the lignocellulosic material is impregnated with a hardenable aqueous composition before or during waterproofing, said composition containing at least one cross-linkable compound, selected from a) low-molecular weight compounds V, having at least two N-bonded groups of formula CH2OH, wherein R=hydrogen or C1-C4 alkyl, and/or one 1,2-bis-hydroxyethan-1,2-diyl group, bridging two nitrogen atoms, ?) precondensates of the compound V and & gammad;) reaction products or mixtures of the compound V with at least one alcohol, selected from C1-C6 alkanols, C2-C6 polyols and oligo-C2-C4-alkylene glycols.Type: ApplicationFiled: April 28, 2006Publication date: August 7, 2008Applicant: BASF AktiengesellschaftInventors: Arend Jouke Kingma, Andreas Fechtenkotter, Wolfgang Kasel, Holger Militz, Andreas Krause, Carsten Mai
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Publication number: 20080149137Abstract: A method for cleaning surfaces using aminoplast foam pieces produced from (a) open-cell aminoplast foams having a density in the range from 5 to 500 kg/m3 and a mean pore diameter in the range from 1 ?m to 1 mm or (b) open-cell aminoplast foams having a density in the range from 5 to 500 kg/m3 and a mean pore diameter in the range from 1 ?m to 1 mm, which have been treated (b1) with an aqueous formulation of at least one compound (b-1) having at least one hemiaminal or aminal group per molecule or at least one copolymer which comprises, incorporated in the form of polymerized units, at least one comonomer containing OH groups or ?-dicarbonyl groups or epoxide groups, or (b2) with at least one polymer (c-1) which is solid at room temperature, contains carboxyl groups and/or carboxylic ester groups and has a molecular weight Mn in the range from 1000 to 1 000 000 g/mol, the aminoplast foam pieces used having an average diameter in the range from 0.1 mm to 50 mm.Type: ApplicationFiled: January 19, 2006Publication date: June 26, 2008Applicant: BASF AktiengesellschaftInventors: Ulrich Steinbrenner, Christof Mock, Gunnar Schornick, Stefan Frenzel, Moritz Ehrenstein, Andreas Fechtenkotter, Antje Ziemer, Kathrin Michl, Christian Hubert Weidl
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Publication number: 20080022466Abstract: A process for treating substrates comprises contacting (A) at least one substrate selected from substrates composed of (A1) polyacrylic, polyester, silicone, polyamide or (A2) one or more polymers based on a monomer of the general formula I in each of which R1 is selected from —Cl, C1-C10-alkyl, —CH?CH2, —C(Cl)?CH2, —C(CH3)?CH2 and —COOC1-C10-alkyl, with at least one aqueous formulation comprising (B) at least one ethylene copolymer wax comprising from 60% to 95% by weight of ethylene and from 5% to 40% by weight of at least one ethylenically unsaturated carboxylic acid in interpolymerized form, further at least one colorant selected from (C) at least one pigment and (D) at least one dye.Type: ApplicationFiled: May 4, 2005Publication date: January 31, 2008Applicant: BASF AktiengesellschaftInventors: Dominik Winter, Tibor Duris, Holger Schopke, Andreas Fechtenkotter