Patents by Inventor David Heslop

David Heslop 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).

  • Polymerisation process
    Patent number: 9868802
    Abstract: Polymerization process for the polymerization of monomer in a polymerization system having at least one component attached thereto which component is flushed with a flush medium which enters the polymerization system. Initially, the component is flushed with a first flush medium, and subsequently the component is flushed with a second flush medium.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: January 16, 2018
    Assignee: INEOS EUROPE AG
    Inventors: Andrew David Bell, Pierre-Marie Cagna, Fabrice Betton, David Heslop, Kevin Peter Ramsay
  • POLYMERISATION PROCESS
    Publication number: 20160297908
    Abstract: The present invention relates to a polymerisation process, and in particular provides a process for the polymeristion of monomer in a polymerisation system having at least one component attached thereto which component is flushed with a flush medium which enters the polymerisation system, wherein initially said component is flushed with a first flush medium, and subsequently said component is flushed with a second flush medium.
    Type: Application
    Filed: June 23, 2016
    Publication date: October 13, 2016
    Inventors: Andrew David BELL, Pierre-Marie CAGNA, Fabrice Betton, David HESLOP, Kevin Peter RAMSAY
  • Polymerisation process
    Patent number: 9376517
    Abstract: Process for the polymerization of monomer in a polymerization system having at least one component attached thereto which is flushed with a flush medium which enters the polymerization system. Initially, the component is flushed with a first flush medium, and subsequently the component is flushed with a second flush medium which differs in composition from the first flush medium. A flush gas containing monomer is used as the flush medium when the polymer production rate is above 10 Te/h.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: June 28, 2016
    Assignee: INEOS EUROPE AG
    Inventors: Andrew David Bell, Pierre-Marie Cagna, Fabrice Betton, David Heslop, Kevin Peter Ramsay
  • Process control for the (co)-polymerisation of olefins
    Patent number: 8114945
    Abstract: Process for controlling the (co)polymerization of olefins in a continuous polymerization reactor wherein the olefin (co)polymerization is performed in an industrial plant reactor in the presence of a polymerization catalyst characterized in that at least one operating parameter of the plant is controlled by means of a measurement of the chain branching level (CBL) of the produced polymer.
    Type: Grant
    Filed: October 14, 2002
    Date of Patent: February 14, 2012
    Assignee: Ineos Europe Limited
    Inventors: David Heslop, Eric Osmont
  • Polymerization process
    Patent number: 6894127
    Abstract: The present invention relates to a process for the gas-phase (co-)polymerization of olefins in a fluidised bed reactor using a late transition metal catalyst characterised in that the polymerization is performed in the presence of a process aid additive.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: May 17, 2005
    Assignee: BP Chemicals Limited
    Inventors: Patrick Daniel Yves Behue, Gacem Benazzouz, Laurent Coupier, David Heslop, Sebastien Huchette, Jean-Pierre Isnard, Willy Lemesle, Renaud Viguier
  • Process control for the (co)-polymerisation of olefins
    Publication number: 20040266959
    Abstract: Process for controlling the (co)polymerisation of olefins in a continuous polymerisation reactor wherein the olefin (co)polymerisation is performed in an industrial plant reactor in the presence of a polymerisation catalyst characterised in that at least one operating parameter of the plant is controlled by means of a measurement of the chain branching level (CBL) of the produced polymer.
    Type: Application
    Filed: April 16, 2004
    Publication date: December 30, 2004
    Inventors: David Heslop, Eric Osmont
  • Polymerisation process
    Publication number: 20040063878
    Abstract: The present invention relates to a process for the gas-phase (co-) polymerisation of olefins in a fluidised bed reactor using a late transition metal catalyst characterised in that the polymerisation is performed in the presence of a process aid additive.
    Type: Application
    Filed: October 21, 2003
    Publication date: April 1, 2004
    Inventors: Patrick Daniel Yves Behue, Gacem Benazouz, Laurent Coupier, David Heslop, Sebastien Huchette, Jean-Pierre Isnard, Willy Lemesle, Renaud Viguier
  • Process for the continuous gas-phase (co-)polymerization of olefins in a fluidized bed reactor
    Patent number: 6639028
    Abstract: A process for the gas-phase (co-)polymerization of olefins in a fluidized bed reactor using a chromium oxide catalyst. The polymerization is performed in the presence of a process aid additive.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: October 28, 2003
    Assignee: BP Chemicals Limited
    Inventors: David Heslop, Jean-Pierre Isnard, Myung-Je Shin
  • Process for the continuous gas-phase (co-) polymerisation of olefins in a fluidised bed reactor
    Publication number: 20020132938
    Abstract: A process for the gas-phase (co-)polymerisation of olefins in a fluidised bed reactor using a chromium oxide catalyst. The polymerisation is performed in the presence of a process aid additive.
    Type: Application
    Filed: March 8, 2002
    Publication date: September 19, 2002
    Inventors: David Heslop, Jean-Pierre Isnard, Myung-Je Shin