Patents by Inventor Renke Mottweiler
Renke Mottweiler 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: 8519047Abstract: Aqueous polymer dispersions based on polychloroprene, a process for their preparation and their use in adhesive formulations. The aqueous polymer dispersion is obtained by a) preparing an aqueous polychloroprene dispersion with a gel content of 0.1 wt. %-30 wt. %, based on the polymer, prepared by polymerization at 0° C.-70° C. of chloroprene and, optionally, ethylenically unsaturated monomers which can be copolymerized with chloroprene and b) subsequently storing the dispersion at temperatures of from 50° C.-110° C. until the gel content has risen by at least 10 wt. % to 1-60 wt. %, based on the polymer.Type: GrantFiled: April 16, 2004Date of Patent: August 27, 2013Assignee: LANXESS Deutschland GmbHInventors: Rüdiger Musch, Christiane Oppenheimer-Stix, Knut Panskus, Renke Mottweiler, Norbert Schildan
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Patent number: 8389674Abstract: Disclosed are systems and methods for producing a polymer dispersion based on polychloroprene, comprising steps of polymerizing chloroprene to polychloroprene, adding the polycholoprene dispersion to a stripper column, and removing chloroprene from the polychloroprene dispersion.Type: GrantFiled: June 7, 2012Date of Patent: March 5, 2013Assignee: Lanxess Deutschland GmbHInventors: Pascal Debayle, Peter Hoeltzenbein, Renke Mottweiler, Eberhardt Muller, Rainer Grafe, Christian Mahner-Wolfarth, Thomas-Oliver Neuner, Mesut Fidan, Marc Lagarde
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Publication number: 20120309893Abstract: Disclosed are systems and methods for producing a polymer dispersion based on polychloroprene, comprising steps of polymerizing chloroprene to polychloroprene, adding the polycholoprene dispersion to a stripper column, and removing chloroprene from the polychloroprene dispersion.Type: ApplicationFiled: June 7, 2012Publication date: December 6, 2012Applicant: LANXESS DEUTSCHLAND GMBHInventors: Pascal DEBAYLE, Peter HOELTZENBEIN, Renke MOTTWEILER, Eberhardt MULLER, Rainer GRAFE, Christian MAHNER-WOLFARTH, Thomas-Oliver NEUNER, Mesut FIDAN, Marc LAGARDE
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Patent number: 7977431Abstract: The present invention relates to dithiocarbamic esters, their preparation and their use for regulating the degree of polymerization during the polymerization of monomers, such as during the polymerization of chloroprene to give polychloroprene, and during the polymerization of 2,3-dichlorobutadiene to give poly-2,3-dichlorobutadiene, and during the copolymerization of chloroprene with 2,3-dichlorobutadiene. The present invention further relates to polymers which are obtainable via the polymerization of monomers in the presence of the dithiocarbamic esters of the invention. The present invention also relates to polymers which contain end groups derived from the dithiocarbamic esters of the present invention.Type: GrantFiled: September 23, 2010Date of Patent: July 12, 2011Assignee: LANXESS Deutschland GmbHInventors: Dirk Achten, Michael Klimpel, Emilie Barriau, Lothar Reif, Renke Mottweiler, Heinrich Berg, Zsolt Szentivanyi, Stefan Glander
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Publication number: 20110015360Abstract: The present invention relates to dithiocarbamic esters, their preparation and their use for regulating the degree of polymerization during the polymerization of monomers, such as during the polymerization of chloroprene to give polychloroprene, and during the polymerization of 2,3-dichlorobutadiene to give poly-2,3-dichlorobutadiene, and during the copolymerization of chloroprene with 2,3-dichlorobutadiene. The present invention further relates to polymers which are obtainable via the polymerization of monomers in the presence of the dithiocarbamic esters of the invention. The present invention also relates to polymers which contain end groups derived from the dithiocarbamic esters of the present invention.Type: ApplicationFiled: September 23, 2010Publication date: January 20, 2011Applicant: LANXESS DEUTSCHLAND GMBHInventors: Dirk Achten, Michael Klimpel, Emilie Barriau, Lothar Reif, Renke Mottweiler, Heinrich Berg, Zsolt Szentivanyi, Stefan Glander
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Patent number: 7825193Abstract: The present invention relates to dithiocarbamic esters, their preparation and their use for regulating the degree of polymerization during the polymerization of monomers, such as during the polymerization of chloroprene to give polychloroprene, and during the polymerization of 2,3-dichlorobutadiene to give poly-2,3-dichlorobutadiene, and during the copolymerization of chloroprene with 2,3-dichlorobutadiene. The present invention further relates to polymers which are obtainable via the polymerization of monomers in the presence of the dithiocarbamic esters of the invention. The present invention also relates to polymers which contain end groups derived from the dithiocarbamic esters of the present invention.Type: GrantFiled: December 1, 2006Date of Patent: November 2, 2010Assignee: LANXESS Deutschland GmbHInventors: Dirk Achten, Michael Klimpel, Emilie Barriau, Lothar Reif, Renke Mottweiler, Heinrich Berg, Zsolt Szentivanyi, Ste{acute over (f)}an Glander
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Publication number: 20070078229Abstract: The present invention relates to dithiocarbamic esters, their preparation and their use for regulating the degree of polymerization during the polymerization of monomers, such as during the polymerization of chloroprene to give polychloroprene, and during the polymerization of 2,3-dichlorobutadiene to give poly-2,3-dichlorobutadiene, and during the copolymerization of chloroprene with 2,3-dichlorobutadiene. The present invention further relates to polymers which are obtainable via the polymerization of monomers in the presence of the dithiocarbamic esters of the invention. The present invention also relates to polymers which contain end groups derived from the dithiocarbamic esters of the present invention.Type: ApplicationFiled: December 1, 2006Publication date: April 5, 2007Inventors: Dirk Achten, Michael Klimpel, Emilie Barriau, Lothar Reif, Renke Mottweiler, Heinrich Berg, Zsolt Szentivanyi, Stefan Glander
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Patent number: 7169937Abstract: The present invention relates to dithiocarbamic esters, their preparation and their use for regulating the degree of polymerization during the polymerization of monomers, such as during the polymerization of chloroprene to give polychloroprene, and during the polymerization of 2,3-dichlorobutadiene to give poly-2,3-dichlorobutadiene, and during the copolymerization of chloroprene with 2,3-dichlorobutadiene. The present invention further relates to polymers which are obtainable via the polymerization of monomers in the presence of the dithiocarbamic esters of the invention. The present invention also relates to polymers which contain end groups derived from the dithiocarbamic esters of the present invention.Type: GrantFiled: September 15, 2003Date of Patent: January 30, 2007Assignee: Bayer AktiengesellschaftInventors: Dirk Achten, Michael Klimpel, Emilie Barriau, Lothar Reif, Renke Mottweiler, Heinrich Berg, Zsolt Szentivanyi, Stefan Glander
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Publication number: 20050143498Abstract: Aqueous polymer dispersions based on polychloroprene, a process for their preparation and their use in adhesive formulations. The aqueous polymer dispersion is obtained by a) preparing an aqueous polychloroprene dispersion with a gel content of 0.1 wt. %-30 wt. %, based on the polymer, prepared by polymerization at 0° C.-70° C. of chloroprene and, optionally, ethylenically unsaturated monomers which can be copolymerized with chloroprene and b) subsequently storing the dispersion at temperatures of from 50° C.-110° C. until the gel content has risen by at least 10 wt. % to 1-60 wt. %, based on the polymer.Type: ApplicationFiled: April 16, 2004Publication date: June 30, 2005Inventors: Rudiger Musch, Christiane Oppenheimer-Stix, Knut Panskus, Renke Mottweiler, Norbert Schildan
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Publication number: 20040110964Abstract: The present invention relates to dithiocarbamic esters, their preparation and their use for regulating the degree of polymerization during the polymerization of monomers, such as during the polymerization of chloroprene to give polychloroprene, and during the polymerization of 2,3-dichlorobutadiene to give poly-2,3-dichlorobutadiene, and during the copolymerization of chloroprene with 2,3-dichlorobutadiene. The present invention further relates to polymers which are obtainable via the polymerization of monomers in the presence of the dithiocarbamic esters of the invention. The present invention also relates to polymers which contain end groups derived from the dithiocarbamic esters of the present invention.Type: ApplicationFiled: September 15, 2003Publication date: June 10, 2004Inventors: Dirk Achten, Michael Klimpel, Emilie Barriau, Lothar Reif, Renke Mottweiler, Heinrich Berg, Zsolt Szentivanyi, Stefan Glander
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Patent number: 4806591Abstract: Cationic sizing agents for paper, obtainable by a process in which a water-soluble cationic terpolymer compound, built up in a chemically uniform manner, of (a) 7 to 40% by weight of N,N-dimethylaminoethyl acrylate and/or methacrylate, (b) 40 to 80% by weight of styrene and (c) 4 to 50% by weight of acrylonitrile, the sum of components (a) to (c) always being 100% by weight and at least 10% of the dimethylamino groups of the terpolymer being quaternized with monoepoxides, with the exception of epihalogenohydrins, and the remainder being protonated, is dissolved in an aqueous medium and, in the presence of 10 to 70% by weight--based on the following monomer mixture--of this emulsifier, (d) 5 to 95% by weight of acrylonitrile, meth-acrylonitrile or styrene or mixtures thereof and (e) 5 to 95% by weight of acrylic acid ester and/or methacrylic acid ester with 1 to 12 C atoms in the alcohol radical--the sum of components (d) and (e) always being 100% by weight--are emulsified and the emulsion thus obtained is subType: GrantFiled: October 20, 1986Date of Patent: February 21, 1989Assignee: Bayer AktiengesellschaftInventors: Joachim Probst, Heinz Baumgen, Bruno Bomer, Joachim Konig, Renke Mottweiler
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Patent number: 4740572Abstract: The production of polymers containing terminal halogen groups from cationically polymerizable monomers using a metal halide boiling below 50.degree. C. at normal pressure as catalyst and an organic halide corresponding to the following general formula ##STR1## in which X is halogen,n is an integer of 1, 2, 3 or 4,R.sub.1 and R.sub.2 represent C.sub.5 -C.sub.10 cycloalkyl or linear or branched C.sub.1 -C.sub.20 alkyl andR.sub.3 represents C.sub.5 -C.sub.10 cycloalkyl, linear or branched C.sub.1 -C.sub.20 alkyl, C.sub.5 -C.sub.10 cycloalkylene, linear or branched C.sub.1 -C.sub.20 alkylene or aryl, and the organic halide (inifer) contains from 5 to 50 carbon atoms and is present in concentrations of from 10.sup.-1 to 10.sup.-6 moles per mole monomer while the metal halide is added in a 1.1 to 100-fold molar excess, based on halogen atoms of the organic halide, at temperatures of from +10.degree. to -130.degree. C.Type: GrantFiled: November 17, 1986Date of Patent: April 26, 1988Assignee: Bayer AktiengesellschaftInventors: Rudiger Musch, Steven Pask, Renke Mottweiler, Oskar Nuyken, Thomas Dittmer, Hans-Peter Muhlbauer