Patents by Inventor Frans J. P. G. van den Bosch

Frans J. P. G. van den Bosch 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).

  • Catalyst system for (co) polymerization of ethylene in solution
    Patent number: 4914168
    Abstract: Catalyst system, suitable for the (co)polymerization of ethylene and optionally minor amounts of 1-alkenes and/or dienes at such temperatures that the copolymer formed goes into solution, to be prepared by combining at least two components A and B, which components comprise:A: one or more magnesium compounds, one or more aluminium compounds, one or more transition metal compounds and optionally one or more halogen compounds, in such amounts that the atomic ratio of halogen to magnesium is at least 2, the atomic ratio of aluminium to transition metal is at least 3, the atomic ratio of aluminium to magnesium is at least 1, and the atomic ratio of magnesium to transition metal is at least 0.5,B: one or more organoaluminium compounds of the general formula R.sub.m.sup.1 Al X.sup.1 3-m, where the symbols R.sup.1 are equal or different and represent a hydrocarbon residue with 1-20 carbon atoms and the symbols X.sup.1 are equal or different and represent a hydrogen atom, a group of the general formula --NR.sup.
    Type: Grant
    Filed: August 1, 1988
    Date of Patent: April 3, 1990
    Assignee: Stamicarbon B.V.
    Inventors: Luc M. C. Coosemans, Frans J. P. G. Van Den Bosch
  • Catalyst system for (co)polymerization of ethylene in solution
    Patent number: 4826794
    Abstract: Catalyst system, suitable for the (co)polymerization of ethylene and optionally minor amounts of 1-alkenes and/or dienes at such temperatures that the copolymer formed goes into solution, to be prepared by combining at least two components A and B, which components comprise:A. one or more magnesium compounds, one or more aluminium compounds, one or more transition metal compounds and optionally one or more halogen compounds, in such amounts that the atomic ratio of halogen to magnesium is at least 2, the atomic ratio of aluminium to transition metal is at least 3, the atomic ratio of aluminium to magnesium is at least 1, and the atomic ratio of magnesium to transition metal is at least 0.5,B. one or more organoaluminium compounds of the general formula R.sub.m.sup.1 Al X.sup.1.sub.3-m, where the symbols R.sup.1 are equal or different and represent a hydrocarbon residue with 1-20 carbon atoms and the symbols X.sup.1 are equal or different and represent a hydrogen atom, a group of the general formula --NR.sup.
    Type: Grant
    Filed: February 10, 1988
    Date of Patent: May 2, 1989
    Assignee: Stamicarbon B.V.
    Inventors: Luc M. C. Coosemans, Frans J. P. G. van den Bosch