Patents by Inventor Julia Maria Muller

Julia Maria Muller 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).

  • Partially hydrogenated nitrile rubbers
    Patent number: 9428592
    Abstract: Provided are new partially hydrogenated nitrile rubbers which are distinguished by a specific ratio of viscosity to molecular weight, and also vulcanizable mixtures and vulcanizates based on said rubbers, and also the associated preparation processes. The partially hydrogenated nitrile rubbers lead to compounded formulations having advantageous processing properties in conjunction with excellent vulcanizate properties.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: August 30, 2016
    Assignee: LANXESS Deutschland GmbH
    Inventors: Werner Obrecht, Julia Maria Müller, Oskar Nuyken, Martin Schneider
  • PARTIALLY HYDROGENATED NITRILE RUBBERS
    Publication number: 20130345366
    Abstract: Provided are new partially hydrogenated nitrile rubbers which are distinguished by a specific ratio of viscosity to molecular weight, and also vulcanizable mixtures and vulcanizates based on said rubbers, and also the associated preparation processes. The partially hydrogenated nitrile rubbers lead to compounded formulations having advantageous processing properties in conjunction with excellent vulcanizate properties.
    Type: Application
    Filed: August 5, 2011
    Publication date: December 26, 2013
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Werner Obrecht, Julia Maria Müller, Oskar Nuyken, Martin Schneider
  • Process for degrading nitrile rubbers in the presence of catalysts having an increased activity
    Patent number: 8609782
    Abstract: A process of degrading nitrile rubbers comprises subjecting them to a metathesis reaction in the presence of specific catalysts with increased activity.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: December 17, 2013
    Assignee: LANXESS Deutschland GmbH
    Inventors: Werner Obrecht, Christopher Ong, Julia Maria Müller, Oskar Nuyken
  • PROCESS FOR REACTING CHEMICAL COMPOUNDS IN THE PRESENCE OF CATALYST SYSTEMS
    Publication number: 20130324672
    Abstract: New catalyst systems for metathesis reactions, in particular for the metathesis of nitrile rubber, are provided.
    Type: Application
    Filed: August 7, 2013
    Publication date: December 5, 2013
    Applicant: LANXESS Deutschland GmbH
    Inventors: Werner OBRECHT, Julia Maria MULLER, Oskar NUYKEN
  • BLENDS OF PARTIALLY HYDROGENATED NITRILE RUBBER AND SILICONE RUBBER, VULCANIZABLE MIXTURES AND VULCANIZATES BASED THEREON
    Publication number: 20130303700
    Abstract: Novel rubber blends based on partly hydrogenated nitrile rubber and silicone rubber containing vinyl groups are provided, these being produced by a metathesis reaction in the presence of suitable catalysts, as are vulcanizable mixtures and vulcanizates based thereon, and the corresponding production processes.
    Type: Application
    Filed: June 14, 2011
    Publication date: November 14, 2013
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Werner Obrecht, Kevin Kulbaba, Julia Maria Muller, Matthias Soddemann, Oskar Nuyken, Carola Gantner
  • Process for reacting chemical compounds in the presence of catalyst systems
    Patent number: 8530584
    Abstract: New catalyst systems for metathesis reactions, in particular for the metathesis of nitrile rubber, are provided.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: September 10, 2013
    Assignee: LANXESS Deutschland GmbH
    Inventors: Werner Obrecht, Julia Maria Muller, Oskar Nuyken
  • Metathesis of nitrile rubbers in the presence of transition metal complex catalysts
    Patent number: 8362154
    Abstract: A novel process for the metathetic degradation of nitrile rubbers is provided which uses specific transition metal complex catalysts showing an increased activity.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: January 29, 2013
    Assignee: LANXESS Deutschland GmbH
    Inventors: Christopher Ong, Werner Obrecht, Oskar Nuyken, Julia Maria Muller
  • PROCESS FOR DEGRADING NITRILE RUBBERS IN THE PRESENCE OF CATALYSTS HAVING AN INCREASED ACTIVITY
    Publication number: 20120116026
    Abstract: A process of degrading nitrile rubbers comprises subjecting them to a metathesis reaction in the presence of specific catalysts with increased activity.
    Type: Application
    Filed: November 21, 2011
    Publication date: May 10, 2012
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Werner Obrecht, Christopher Ong, Julia Maria Müller, Oskar Nuyken
  • PROCESS FOR REACTING CHEMICAL COMPOUNDS IN THE PRESENCE OF CATALYST SYSTEMS
    Publication number: 20110077360
    Abstract: New catalyst systems for metathesis reactions, in particular for the metathesis of nitrile rubber, are provided.
    Type: Application
    Filed: December 7, 2010
    Publication date: March 31, 2011
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Werner Obrecht, Julia Maria Müller, Oskar Nuyken
  • Process for the metathetic degradation of nitrile rubber
    Patent number: 7875683
    Abstract: The metathetic degradation of nitrile rubber can be improved by use of a combination of metal-carbene complex catalysts with specific transition metal additives.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: January 25, 2011
    Assignee: LANXESS Deutschland GmbH
    Inventors: Werner Obrecht, Julia Maria Müller, Oskar Nuyken
  • Catalyst Systems and their use for Metathesis Reactions
    Publication number: 20100087600
    Abstract: A novel process for reducing the molecular weight of nitrile rubber in the presence of specific catalyst systems containing the metathesis catalyst and also a specific addition of fluorine-containing boron compounds is provided.
    Type: Application
    Filed: June 23, 2009
    Publication date: April 8, 2010
    Applicant: LANXESS Deutschland GmbH
    Inventors: Julia Maria Müller, Oskar Nuyken, Werner Obrecht
  • Process for the metathetic degradation of nitrile rubbers
    Patent number: 7662889
    Abstract: An improved process for the metathetic degradation of nitrile rubber using catalyst systems comprising the catalyst and also a phosphane or diphosphane is provided.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: February 16, 2010
    Assignee: LANXESS Deutschland GmbH
    Inventors: Werner Obrecht, Julia Maria Müller, Oskar Nuyken, Monika Kellner
  • PROCESS FOR THE METATHETIC DEGRADATION OF NITRILE RUBBER
    Publication number: 20090076227
    Abstract: The metathetic degradation of nitrile rubber can be improved by use of a combination of metal-carbene complex catalysts with specific transition metal additives.
    Type: Application
    Filed: August 19, 2008
    Publication date: March 19, 2009
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Werner Obrecht, Julia Maria Muller, Oskar Nuyken
  • Metathesis of Nitrile Rubbers In the Presence of Transition Metal Complex Catalysts
    Publication number: 20090054597
    Abstract: A novel process for the metathetic degradation of nitrile rubbers is provided which uses specific transition metal complex catalysts showing an increased activity.
    Type: Application
    Filed: August 13, 2008
    Publication date: February 26, 2009
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Christopher Ong, Werner Obrecht, Oskar Nuyken, Julia Maria Muller
  • Method for the degradation of nitrile rubber by metathesis in the presence of ruthenium- or osmium-based catalysts
    Patent number: 7470750
    Abstract: A novel process for the degradation of nitrile rubber by metathesis using ruthenium- or osmium-based catalysts which have both a substituted or unsubstituted imidazolidine ligand and a carbene ligand bearing a phosphonium radical is provided.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: December 30, 2008
    Assignee: LANXESS Deutschland GmbH
    Inventors: Werner Obrecht, Julia Maria Müller, Oskar Nuyken, Heinz Berke, Ludek Meca, Lubica Triscikova