Patents by Inventor Willy De Koster

Willy De Koster 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 and apparatus for manufacturing ethylene polymers and copolymers
    Patent number: 7582709
    Abstract: The invention relates to a process for the manufacture of ethylene polymers and copolymers in which ethylene is compressed in a primary compressor at a throughput of at least 55 tonnes/hour, mixed with recycled ethylene and further compressed in a two-stage reciprocating secondary compressor having at least 14 cylinders to a pressure of at least 2300 bar at a throughput of at least 120 tonnes/hour, heating at least a portion of that ethylene to a temperature of at least 95° C. and introducing it into a tubular reactor of diameter at least 65 mm and a length of at least 1500 m, introducing initiator in at least three reaction zones to give a conversion of at least 28% and maintaining a pressure drop over the reactor to maintain a flow velocity of at least 6 m/s.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: September 1, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Ivo T. Goossens, Fausto F. Ciancio, Paul Clymans, Philip H. Cornelissen, Martin J. Decoster, Willy De Koster, Henri A. Lammens, Tom Van Nuland
  • Process and apparatus for manufacturing ethylene polymers and copolymers
    Publication number: 20070032614
    Abstract: The invention relates to a process for the manufacture of ethylene polymers and copolymers in which ethylene is compressed in a primary compressor at a throughput of at least 55 tonnes/hour, mixed with recycled ethylene and further compressed in a two-stage reciprocating secondary compressor having at least 14 cylinders to a pressure of at least 2300 bar at a throughput of at least 120 tonnes/hour, heating at least a portion of that ethylene to a temperature of at least 95° C. and introducing it into a tubular reactor of diameter at least 65 mm and a length of at least 1500 m, introducing initiator in at least three reaction zones to give a conversion of at least 28% and maintaining a pressure drop over the reactor to maintain a flow velocity of at least 6 m/s.
    Type: Application
    Filed: July 5, 2006
    Publication date: February 8, 2007
    Inventors: Ivo Goossens, Fausto Ciancio, Paul Clymans, Philip Cornelissen, Martin Decoster, Willy De Koster, Henri Lammens, Tom Van Nuland