Patents by Inventor Gerd Loehden

Gerd Loehden 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).

  • Copper removal from ATRP products by means of addition of sulfur compounds
    Patent number: 7999066
    Abstract: The present invention relates to a precipitation process for removing transition metals from polymer solutions. Specifically, it comprises the removal of transition metal complexes which usually comprise copper from polymer solutions after a completed atom transfer radical polymerization.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: August 16, 2011
    Assignee: Evonik Roehm GmbH
    Inventors: Sven Balk, Gerd Loehden, Christine Miess, Christine Troemer, Monika Maerz
  • ADHESIVES BASED ON POLYESTER-GRAFT-POLY(METH)ACRYLATE COPOLYMERS
    Publication number: 20110196087
    Abstract: The present invention relates to the use of mixtures comprising polymer types A, B and AB as or in adhesives, polymer type A being a copolyester prepared with cocondensation of unsaturated aliphatic dicarboxylic acids, polymer type B being a (meth)acrylate homopolymer and/or copolymer, and polymer type AB being a graft copolymer of polymer type A and polymer type B.
    Type: Application
    Filed: May 29, 2008
    Publication date: August 11, 2011
    Inventors: Gabriele Brenner, Rene Koschabek, Sven Balk, Thorsten Brand, Gerd Loehden
  • Method for the production of telechelic polymers
    Patent number: 7943708
    Abstract: The present invention relates to the coupling of two polymer chains to give end group-functionalized polymers, the simultaneous precipitation of transition metals from polymer solutions and to the removal of halogen atoms from polymer chain ends.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: May 17, 2011
    Assignee: Evonik Röhm GmbH
    Inventors: Sven Balk, Gerd Loehden, Christine Troemer, Monika Maerz, Christine Miess
  • IMPROVED ADHESIVE AGENTS FOR PLASTISOLS
    Publication number: 20110111238
    Abstract: The invention relates to plastisols which even without the addition of adhesion promoters exhibit high adhesion to metallic and cathodically deposition-coated substrates.
    Type: Application
    Filed: August 12, 2008
    Publication date: May 12, 2011
    Applicant: Evonik Roehm GmbH
    Inventors: Jan Hendrik Schattka, Gerd Loehden, Marita Kaufmann, Winfried Belzner, Michael Wolff, Rainer Lomoelder, Dirk Hoppe, Christoph Nacke
  • METHOD FOR PRODUCING SILYL-FUNCTIONALIZED ABA TRIBLOCK COPOLYMERS ON THE BASIS OF (METH)ACRYLATE
    Publication number: 20110086984
    Abstract: The invention relates to a process for preparing (meth)acrylate-based ABA triblock copolymers with a silyl functionalization of the A blocks.
    Type: Application
    Filed: April 14, 2009
    Publication date: April 14, 2011
    Applicants: Evonik Roehm GmbH, Henkel AG & Co. KGAA
    Inventors: Sven Balk, Gerd Loehden, Holger Kautz, Christine Troemer, Monika Maerz, Lars Zander, Jens Lueckert, Johann Klein, Thomas Moeller
  • METHOD FOR PREPARATION OF PENTA-BLOCK COPOLYMERS WITH OH-FUNCTIONALIZED BLOCKS BASED ON (METH)ACRYLATE
    Publication number: 20110034623
    Abstract: The invention relates to a process for preparing CABAC or ACBCA pentablock copolymers based on (meth)acrylate with an OH functionalization of the A blocks.
    Type: Application
    Filed: August 11, 2008
    Publication date: February 10, 2011
    Applicants: Evonik Roehm GmbH, Henkel Ag & Co. KGAA
    Inventors: Sven Balk, Gerd Loehden, Holger Kautz, Volker Erb, Uwe Franken, Georg Kinzelmann, Thomas Moeller
  • Process for preparing (meth) acrylate-based ABA triblock copolymers
    Patent number: 7868098
    Abstract: The invention relates to a process for preparing (meth)acrylate-based ABA triblock copolymers with an olefinic functionalization of the A blocks.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: January 11, 2011
    Assignee: Evonik Roehm GmbH
    Inventors: Gerd Loehden, Sven Balk, Monika Maerz, Christine Troemer
  • METHOD FOR THE PRODUCTION OF (METH) ACRYLATE-BASED ABA TRIBLOCK COPOLYMERS
    Publication number: 20100280182
    Abstract: The invention relates to a method for producing meth)acrylate-based ABA triblock copolymers in which the A blocks are amine-functionalized.
    Type: Application
    Filed: April 12, 2007
    Publication date: November 4, 2010
    Applicant: Evonik Roehm GmbH
    Inventors: Sven Balk, Gerd Loehden, Christine Miess, Christine Troemer, Monika Maerz
  • PROCESS FOR PRODUCING IMPROVED BINDERS FOR PLASTISOLS
    Publication number: 20100062271
    Abstract: The invention relates to a process for preparing binders for plastisols that ensures high and consistent product quality over a multiplicity of batches. The binders obtained from this process allow the formulation of plastisols which possess improved stability on storage and, after gelling, improved mechanical properties.
    Type: Application
    Filed: August 15, 2007
    Publication date: March 11, 2010
    Applicant: Evonik Roehm GmbH
    Inventors: Jan Hendrik Schattka, Gerd Loehden, Winfried Belzner, Ulrike Behrens, Christian Golditz, Sebastian Grimm, Herbert Jung, Florian Matthes
  • METHOD FOR PRODUCING SILYL TELECHELIC POLYMERS
    Publication number: 20100041852
    Abstract: The present invention relates to the in situ silyl end group functionalization of polymer chains which have been prepared by means of atom transfer radical polymerization and the simultaneous removal of transition metals from polymer solutions.
    Type: Application
    Filed: June 26, 2007
    Publication date: February 18, 2010
    Applicant: Evonik Roehm GmbH
    Inventors: Sven Balk, Gerd Loehden
  • METHOD FOR THE PRODUCTION OF TELECHELIC POLYMERS
    Publication number: 20100010178
    Abstract: The present invention relates to the coupling of two polymer chains to give end group-functionalized polymers, the simultaneous precipitation of transition metals from polymer solutions and to the removal of halogen atoms from polymer chain ends.
    Type: Application
    Filed: October 29, 2007
    Publication date: January 14, 2010
    Applicant: Evonik Roehm Gmbh
    Inventors: Sven Balk, Gerd Löhden, Christine Trömer, Monika März, Christine Miess
  • PROCESS FOR PREPARING ACID-TERMINATED ATRP PRODUCTS
    Publication number: 20090326163
    Abstract: The present invention relates to the in situ acid end group functionalization of polymer chains which have been prepared by means of atom transfer radical polymerization, and to the simultaneous removal of transition metals from polymer solutions.
    Type: Application
    Filed: May 15, 2007
    Publication date: December 31, 2009
    Applicant: EVONIK ROEHM GMBH
    Inventors: Sven Balk, Gerd Loehden, Christine Miess, Christine Troemer, Monika Maerz
  • PROCESS FOR PREPARING HYDROXY-TELECHELIC ATRP PRODUCTS
    Publication number: 20090312498
    Abstract: The present invention relates to the in situ hydroxyl end group functionalization of polymer chains which have been prepared by means of atom transfer radical polymerization, and to the simultaneous removal of transition metals from polymer solutions.
    Type: Application
    Filed: May 15, 2007
    Publication date: December 17, 2009
    Applicant: Evonik Roehm GmbH
    Inventors: Sven Balk, Gerd Löhden, Christine Trömer, Monika März, Christine Miess
  • PLASTISOLS BASED ON A METHYL METHACRYLATE COPOLYMER
    Publication number: 20090292066
    Abstract: The invention relates to plastisol systems with improved adhesion and with lower water absorption.
    Type: Application
    Filed: June 14, 2007
    Publication date: November 26, 2009
    Applicant: Evonik Roehm GmbH
    Inventors: Jan Hendrik Schattka, Gerd Loehden, Winfried Belzner
  • PROCESS FOR PREPARING HALOGEN-FREE ATRP PRODUCTS
    Publication number: 20090275707
    Abstract: The present invention relates to the in situ removal of terminal halogen atoms from polymer chains which have been prepared by means of atom transfer radical polymerization, and to the simultaneous removal of transition metals from polymer solutions.
    Type: Application
    Filed: May 15, 2007
    Publication date: November 5, 2009
    Applicant: Evonik Roehm GmbH
    Inventors: Sven Balk, Gerd Löhden, Elke Osthaus
  • METHOD OF BONDING MATERIALS OF CONSTRUCTION USING NANOSCALE, SUPERPARAMAGNETIC POLY(METH)ACRYLATE POLYMERS
    Publication number: 20090165949
    Abstract: The invention relates to a method of bonding different materials of construction using hybrid materials comprising nanoscale, superparamagnetic, ferromagnetic, ferrimagnetic or paramagnetic powders enveloped or in part not enveloped by poly(meth)acrylates, and to their use.
    Type: Application
    Filed: November 21, 2006
    Publication date: July 2, 2009
    Applicant: Evonik Roehm GmbH
    Inventors: Sebastian Roos, Gerd Löhden, Jan Hendrik Schattka, Manfred Braum, Markus Pridöhl, Guido Zimmermann, Andreas Hüther
  • NANOSCALE SUPERPARAMAGNETIC POLY(METH)ACRYLATE POLYMERS
    Publication number: 20090159834
    Abstract: The invention relates to hybrid materials comprising polymers which envelop nanoscale, superparamagnetic, ferromagnetic, ferrimagnetic or paramagnetic powders, to a process for producing these materials and to their use.
    Type: Application
    Filed: November 21, 2006
    Publication date: June 25, 2009
    Applicant: EVONIK ROEHM GMBH
    Inventors: Sebastian Roos, Gerd Löhden, Jan Hendrik Schattka, Manfred Braum, Markus Pridöhl, Guido Zimmermann, Andreas Hüther
  • COPPER REMOVAL FROM ATRP PRODUCTS BY MEANS OF ADDITION OF SULFUR COMPOUNDS
    Publication number: 20090062508
    Abstract: The present invention relates to a precipitation process for removing transition metals from polymer solutions. Specifically, it comprises the removal of transition metal complexes which usually comprise copper from polymer solutions after a completed atom transfer radical polymerization.
    Type: Application
    Filed: February 12, 2007
    Publication date: March 5, 2009
    Applicant: Evonik Roehm GmbH
    Inventors: Sven Balk, Gerd Loehden, Christine Miess, Christine Troemer, Monika Maerz
  • SYNTHESIS OF POLYESTER-GRAFT-POLY(METH)ACRYLATE COPOLYMERS
    Publication number: 20090048401
    Abstract: The present invention relates to a novel synthesis of (meth)acrylate-grafted polyesters and their action as compatibilizers.
    Type: Application
    Filed: December 21, 2006
    Publication date: February 19, 2009
    Applicant: EVONIK ROEHM GMBH
    Inventors: Gerd Loehden, Sven Balk, Thorsten Brand, Gabriele Brenner, Thomas Arnold, Cornelia Baumann
  • Plastisols Based on a Methylmethacrylate Copolymer
    Publication number: 20080293854
    Abstract: The invention relates to plastisol systems with improved properties.
    Type: Application
    Filed: June 17, 2005
    Publication date: November 27, 2008
    Applicant: ROEHM GMBH
    Inventors: Jan Hendrik Schattka, Gerd Loehden, Winfried Belzner