Patents by Inventor Christopher M. Ong

Christopher M. Ong 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).

  • Process for preparing hydrogenated nitrile rubbers
    Patent number: 7666950
    Abstract: The present invention provides a novel process for preparing hydrogenated nitrile rubbers comprising subjecting nitrile rubbers in a spinning disk reactor to hydrogenation. The present process is less demanding with regard to its reaction conditions, like e.g. the hydrogen pressure to be applied, compared to known processes and significantly reduces the cost of the hydrogenation process and in particular the equipment cost.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: February 23, 2010
    Assignee: LANXESS Deutschland GmbH
    Inventors: Christopher M. Ong, Stephen Pask, Sharon Guo, Franz Mersmann
  • Low mooney nitrile rubber thermoplastic elastomer composition with improved processability
    Patent number: 7659339
    Abstract: The present invention relates to thermoplastic vulcanizates (TPVs) based on low Mooney, optionally hydrogenated nitrile butadiene rubber and polyamides. The present invention also relates to TPVs based on low Mooney, optionally, hydrogenated nitrile terpolymers and polyamides. TPVs prepared according to the present invention have improved morphology, smaller rubber particle size, and improved processability compared to TPVs containing non-low Mooney, optionally hydrogenated nitrile butadiene rubber.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: February 9, 2010
    Assignees: LANXESS Deutschland GmbH, LANXESS Inc.
    Inventors: Victor Nasreddine, Sharon X. Guo, Dirk Schaefer, Christopher M. Ong
  • Process for the preparation of low molecular weight hydrogenated nitrile rubber
    Patent number: 7381781
    Abstract: The present invention relates to a process for the production of hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art in the absence of a co-(olefin).
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: June 3, 2008
    Assignee: Lanxess Inc.
    Inventors: Christopher M. Ong, Sharon X. Guo, Frederic Guerin
  • Polymer blends comprising low molecular weight nitrile rubber
    Patent number: 7105606
    Abstract: The present invention relates to a polymer blend containing at least one nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) below 10 and at least one nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) above 30 wherein said polymer blend has a multi-modal molecular weight distribution, a process for preparing said polymer blend wherein at least one nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) below 10 and at least one nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) above 30 are mixed in a solvent and the blend is isolated from the solvent. The present invention also relates to a process for the manufacture of a shaped article including the step of injection molding the polymer blend.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: September 12, 2006
    Assignee: LANXESS Inc.
    Inventors: Christopher M. Ong, Frederic Guerin
  • Process for the preparation of low molecular weight hydrogenated nitrile rubber
    Publication number: 20040132891
    Abstract: The present invention relates to a process for the production of hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art in the absence of a co-(olefin).
    Type: Application
    Filed: December 4, 2003
    Publication date: July 8, 2004
    Inventors: Christopher M. Ong, Sharon X. Guo, Frederic Guerin
  • Polymer blends comprising low molecular weight nitrile rubber
    Publication number: 20040127647
    Abstract: The present invention relates to a polymer blend containing at least one nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) below 10 and at least one nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) above 30 wherein said polymer blend has a multi-modal molecular weight distribution, a process for preparing said polymer blend wherein at least one nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) below 10 and at least one nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) above 30 are mixed in a solvent and the blend is isolated from the solvent. The present invention also relates to a process for the manufacture of a shaped article including the step of injection molding the polymer blend.
    Type: Application
    Filed: October 14, 2003
    Publication date: July 1, 2004
    Inventors: Christopher M. Ong, Frederic Guerin