Patents by Inventor Jan Cyriel Donck

Jan Cyriel Donck 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).

  • Tubular polymerization reactors and polymers made therein
    Patent number: 6899852
    Abstract: Tubular reactor apparatus and processes are provided for improved polymerization including using chain transfer agents and multiple monomer feeds spaced lengthwise along the tubular reactor providing high conversions of monomer into polymer. The invention also relates to polymers made from such a tubular reactor apparatus and processes including those polymers having a low haze value, a density over 0.92 g/cm3 and/or having terminal carbonyl groups. The apparatus and methods uncouple or reduce the dependency between the monomer concentration and transfer agent concentration. The uncoupling in other embodiments may also be varied leading to multiple desirable effects.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: May 31, 2005
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Jan Cyriel Donck
  • TUBULAR POLYMERIZATION REACTORS AND POLYMERS MADE THEREIN
    Publication number: 20040247493
    Abstract: Tubular reactor apparatus and processes are provided for improved polymerization including using chain transfer agents and multiple monomer feeds spaced lengthwise along the tubular reactor providing high conversions of monomer into polymer. The invention also relates to polymers made from such a tubular reactor apparatus and processes including those polymers having a low haze value, a density over 0.92 g/cm3 and/or having terminal carbonyl groups. The apparatus and methods uncouple or reduce the dependency between the monomer concentration and transfer agent concentration. The uncoupling in other embodiments may also be varied leading to multiple desirable effects.
    Type: Application
    Filed: November 12, 2003
    Publication date: December 9, 2004
    Inventor: Jan Cyriel Donck
  • Tubular polymerization reactors and polymers made therein
    Patent number: 6673878
    Abstract: Tubular reactor apparatus and processes are provided for improved polymerization including using chain transfer agents and multiple monomer feeds spaced lengthwise along the tubular reactor providing high conversions of monomer into polymer. The invention also relates to polymers made from such a tubular reactor apparatus and processes including those polymers having a low haze value, a density over 0.92 g/cm3 and/or having terminal carbonyl groups. The apparatus and methods uncouple or reduce the dependency between the monomer concentration and transfer agent concentration. The uncoupling in other embodiments may also be varied leading to multiple desirable effects.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: January 6, 2004
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Jan Cyriel Donck
  • TUBULAR POLYMERIZATION REACTORS AND POLYMERS MADE THEREIN
    Publication number: 20030206835
    Abstract: Tubular reactor apparatus and processes are provided for improved polymerization including using chain transfer agents and multiple monomer feeds spaced lengthwise along the tubular reactor providing high conversions of monomer into polymer. The invention also relates to polymers made from such a tubular reactor apparatus and processes including those polymers having a low haze value, a density over 0.92 g/cm3 and/or having terminal carbonyl groups. The apparatus and methods uncouple or reduce the dependency between the monomer concentration and transfer agent concentration. The uncoupling in other embodiments may also be varied leading to multiple desirable effects.
    Type: Application
    Filed: June 4, 2003
    Publication date: November 6, 2003
    Inventor: Jan Cyriel Donck
  • Tubular polymerization reactors and polymers made therein
    Patent number: 6596241
    Abstract: Tubular reactor apparatus and processes are provided for improved polymerization including using chain transfer agents and multiple monomer feeds spaced lengthwise along the tubular reactor providing high conversions of monomer into polymer. The invention also relates to polymers made from such a tubular reactor apparatus and processes including those polymers having a low haze value, a density over 0.92 g/cm3 and/or having terminal carbonyl groups. The apparatus and methods uncouple or reduce the dependency between the monomer concentration and transfer agent concentration. The uncoupling in other embodiments may also be varied leading to multiple desirable effects.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: July 22, 2003
    Assignee: ExxonMobil Chemical Patents Inc
    Inventor: Jan Cyriel Donck
  • TUBULAR POLYMERIZATION REACTORS AND POLYMERS MADE THEREIN
    Publication number: 20030114607
    Abstract: Tubular reactor apparatus and processes are provided for improved polymerization including using chain transfer agents and multiple monomer feeds spaced lengthwise along the tubular reactor providing high conversions of monomer into polymer. The invention also relates to polymers made from such a tubular reactor apparatus and processes including those polymers having a low haze value, a density over 0.92 g/cm3 and/or having terminal carbonyl groups. The apparatus and methods uncouple or reduce the dependency between the monomer concentration and transfer agent concentration. The uncoupling in other embodiments may also be varied leading to multiple desirable effects.
    Type: Application
    Filed: December 19, 2001
    Publication date: June 19, 2003
    Inventor: Jan Cyriel Donck