Patents by Inventor Dirk Achten

Dirk Achten 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).

  • Publication number: 20110015360
    Abstract: 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: Application
    Filed: September 23, 2010
    Publication date: January 20, 2011
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Dirk Achten, Michael Klimpel, Emilie Barriau, Lothar Reif, Renke Mottweiler, Heinrich Berg, Zsolt Szentivanyi, Stefan Glander
  • Patent number: 7825193
    Abstract: 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: Grant
    Filed: December 1, 2006
    Date of Patent: November 2, 2010
    Assignee: LANXESS Deutschland GmbH
    Inventors: Dirk Achten, Michael Klimpel, Emilie Barriau, Lothar Reif, Renke Mottweiler, Heinrich Berg, Zsolt Szentivanyi, Ste{acute over (f)}an Glander
  • Patent number: 7645833
    Abstract: Novel crosslinkable compositions based on elastomers, at least one of which has carboxyl and/or carboxylate groups, are provided, these crosslinkable compositions containing special unsaturated organic salts of metal ions and a crosslinking system which acts as a free radical donor. Crosslinked elastomers which have excellent physical properties are obtainable therefrom. The novel crosslinkable compositions have a wide range of uses.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: January 12, 2010
    Assignee: LANXESS Deutschland GmbH
    Inventors: Dirk Achten, Claus Wrana, Christopher Ong, Martin Mezger, Hans Magg, Jürgen Ismeier, Hans-Rafael Winkelbach
  • Publication number: 20090292064
    Abstract: Novel crosslinkable compositions based on elastomers, at least one of which has carboxyl and/or carboxylate groups, are provided, these crosslinkable compositions containing special unsaturated organic salts of metal ions and a crosslinking system which acts as a free radical donor. Crosslinked elastomers which have excellent physical properties are obtainable therefrom. The novel crosslinkable compositions have a wide range of uses.
    Type: Application
    Filed: September 25, 2006
    Publication date: November 26, 2009
    Inventors: Dirk Achten, Claus Wrana, Christopher Ong, Martin Mezger, Hans Magg, Jurgen Ismeier, Hans-Rafael Winkelbach
  • Patent number: 7572861
    Abstract: The present invention relates to hydrogenated carboxylated nitrile-butadiene rubber (HXNBR), which contain molecularly dispersed triphenylphosphine, and which is useful as a cross-linking agent for elastomers, plastics and/or adhesive systems. The present invention also relates to products which are obtainable from the HXNBR having molecularly dispersed triphenylphosphine and elastomer, plastics and/or adhesive systems, a composition containing a HXNBR having molecularly dispersed triphenylphosphine and further non-molecularly dispersed activators, a process for the preparation of the composition as well as the use of HXNBR having molecularly dispersed triphenylphosphine, as an elasticizing agent for elastomer, plastics and/or adhesive systems.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: August 11, 2009
    Assignee: Lanxess Deutschland GmbH
    Inventors: Dirk Achten, Hans-Rafael Winkelbach, Martin Mezger
  • Publication number: 20090099317
    Abstract: A multicomponent system is provided, composed of a thermoplastic component and of a rubber component, which comprises at least two different peroxidic crosslinking agents with specific decomposition temperatures, as also is a process for production of rubber-thermoplastic composite mouldings using the multicomponent system, and also the resultant rubber-thermoplastic composite mouldings.
    Type: Application
    Filed: December 15, 2006
    Publication date: April 16, 2009
    Inventors: Dirk Achten, Stefanie Nickel, Maik Schulte, Michael Munker, Detlev Joachimi
  • Publication number: 20090053949
    Abstract: The invention relates to low-viscosity, low-monomer aqueous polymer dispersions based on polychloroprene, and a process for the preparation thereof and the use thereof as a contact adhesive.
    Type: Application
    Filed: August 19, 2008
    Publication date: February 26, 2009
    Applicant: Bayer MaterialScience AG
    Inventors: Dirk Achten, Peter Kueker, Juergen Kempkes, Bianka Lorenz, Peter Reichert, Winfried Jeske, Jose Colinas-Martinez
  • Patent number: 7396884
    Abstract: The present invention relates to a composition containing a hydrogenated nitrile-butadiene rubber (HNBR), a peroxide crosslinking system and a resorcinol-formaldehyde resin, to a process for the preparation of the composition, to the use of the composition as an adhesion promoter, and also to a multilayer product containing the composition according to the present invention.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: July 8, 2008
    Assignee: LANXESS Deutschland GmbH
    Inventor: Dirk Achten
  • Publication number: 20080108753
    Abstract: The present invention relates to hydrogenated carboxylated nitrile-butadiene rubber (HXNBR), which contain molecularly dispersed triphenylphosphine, and which is useful as a cross-linking agent for elastomers, plastics and/or adhesive systems. The present invention also relates to products which are obtainable from the HXNBR having molecularly dispersed triphenylphosphine and elastomer, plastics and/or adhesive systems, a composition containing a HXNBR having molecularly dispersed triphenylphosphine and further non-molecularly dispersed activators, a process for the preparation of the composition as well as the use of HBR having molecularly dispersed triphenylphosphine, as an elasticizing agent for elastomer, plastics and/or adhesive systems.
    Type: Application
    Filed: October 24, 2007
    Publication date: May 8, 2008
    Inventors: Dirk Achten, Hans-Rafael Winkelbach, Martin Mezger
  • Patent number: 7291667
    Abstract: The present invention relates to a multistage process including at least two steps for making a heat and oil resistant preroxide-cured thermoplastic vulcanizates (TPV) based on hydrogenated carboxiated nitrile butadiene rubber (HXNBR) and at least one polyamide. TPV's according to the present invention have improved properties and morphology over known TPV's prepared in single-stage processes.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: November 6, 2007
    Assignee: Lanxess Inc.
    Inventors: Victor Nasreddine, Sharon X. Guo, Rayner Krista, Dirk Achten
  • Publication number: 20070078229
    Abstract: 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: Application
    Filed: December 1, 2006
    Publication date: April 5, 2007
    Inventors: Dirk Achten, Michael Klimpel, Emilie Barriau, Lothar Reif, Renke Mottweiler, Heinrich Berg, Zsolt Szentivanyi, Stefan Glander
  • Publication number: 20070055018
    Abstract: Novel crosslinkable compositions are provided and are based on thermoplastic polymers and elastomers, these compositions comprising, as crosslinking system, specific organic salts of metal ions. Ionically crosslinked thermoplastic elastomers can be obtained therefrom and have excellent physical properties, high-temperature resistance extending above 150° C., and also oil resistance. They can be used for production of mouldings.
    Type: Application
    Filed: September 1, 2006
    Publication date: March 8, 2007
    Inventors: Dirk Achten, Claus Wrana, Kay Varnhorn, Stephen Pask, Carsten Fischer
  • Patent number: 7169937
    Abstract: 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: Grant
    Filed: September 15, 2003
    Date of Patent: January 30, 2007
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dirk Achten, Michael Klimpel, Emilie Barriau, Lothar Reif, Renke Mottweiler, Heinrich Berg, Zsolt Szentivanyi, Stefan Glander
  • Patent number: 7071292
    Abstract: The present invention relates to a method for the preparation of purified elastomers prepared by emulsion polymerization, wherein the level of impurity is reduced by up to 99 wt. %, expressed in terms of the unpurified elastomer. The present invention also relates to elastomers which can be obtained by the method according to the present invention, to the use of the elastomers for the production of all types of products, and to the product which is produced by processing the elastomer which can be obtained by the method according to the present invention.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: July 4, 2006
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dirk Achten, Rafael Warsitz, Gregor Dudziak, Franz-Josef Mersmann, Stephen Pask, Zsolt Szentivanyi
  • Publication number: 20060128894
    Abstract: The present invention relates to a multistage process including at least two steps for making a heat and oil resistant preroxide-cured thermoplastic vulcanizates (TPV) based on hydrogenated carboxiated nitrile butadiene rubber (HXNBR) and at least one polyamide. TPV's according to the present invention have improved properties and morphology over known TPV's prepared in single-stage processes.
    Type: Application
    Filed: December 13, 2004
    Publication date: June 15, 2006
    Inventors: Victor Nasreddine, Sharon Guo, Rayner Krista, Dirk Achten
  • Publication number: 20050197486
    Abstract: The present invention relates to a method for the preparation of purified elastomers prepared by emulsion polymerization, wherein the level of impurity is reduced by up to 99 wt. %, expressed in terms of the unpurified elastomer. The present invention also relates to elastomers which can be obtained by the method according to the present invention, to the use of the elastomers for the production of all types of products, and to the product which is produced by processing the elastomer which can be obtained by the method according to the present invention.
    Type: Application
    Filed: October 12, 2004
    Publication date: September 8, 2005
    Inventors: Dirk Achten, Rafael Warsitz, Gregor Dudziak, Franz-Josef Mersmann, Stephen Pask, Zsolt Szentivanyi
  • Publication number: 20040258937
    Abstract: The invention relates to an adhesive based on highly saturated, carboxylated nitrile-butadiene rubber (HXNBR), to its use, to processes for its preparation, to its use for the bonding of substrates and to products manufactured therewith.
    Type: Application
    Filed: June 14, 2004
    Publication date: December 23, 2004
    Inventors: Dirk Achten, Martin Hoch, Martin Mezger, Rudiger Musch, Hans-Rafael Winkelbach, Roland Parg
  • Publication number: 20040229999
    Abstract: The present invention relates to hydrogenated carboxylated nitrile-butadiene rubber (HXNBR), which contain molecularly dispersed triphenylphosphine, and which is useful as a cross-linking agent for elastomers, plastics and/or adhesive systems. The present invention also relates to products which are obtainable from the HXNBR having molecularly dispersed triphenylphosphine and elastomer, plastics and/or adhesive systems, a composition containing a HXNBR having molecularly dispersed triphenylphosphine and further non-molecularly dispersed activators, a process for the preparation of the composition as well as the use of HXNBR having molecularly dispersed triphenylphosphine, as an elasticizing agent for elastomer, plastics and/or adhesive systems.
    Type: Application
    Filed: May 11, 2004
    Publication date: November 18, 2004
    Inventors: Dirk Achten, Hans-Rafael Winkelbach, Martin Mezger
  • Patent number: 6800708
    Abstract: The invention relates to a new process for the preparation of functionalized telechelics based on vinyl polymers, the telechelics prepared in this way and their use in the plastics, fibers or coating sector.
    Type: Grant
    Filed: April 7, 2003
    Date of Patent: October 5, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Martin Melchiors, Hartwig Höcker, Helmut Keul, Dirk Achten
  • Publication number: 20040166346
    Abstract: The present invention relates to a composition containing a hydrogenated nitrile-butadiene rubber (HNBR), a peroxide crosslinking system and a resorcinol-formaldehyde resin, to a process for the preparation of the composition, to the use of the composition as an adhesion promoter, and also to a multilayer product containing the composition according to the present invention.
    Type: Application
    Filed: February 13, 2004
    Publication date: August 26, 2004
    Inventor: Dirk Achten