Patents by Inventor Luc M. C. Coosmans

Luc M. C. Coosmans 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 high-temperature (co) polymerization of ethylene
    Patent number: 5013701
    Abstract: Catalyst system, suitable for the (co)polymerization of ethylene and optionally minor amounts of 1-alkenes and/or dienes at a temperature of at least 180.degree. C., to be prepared by combining at least two components A and B, which components comprise:A: one or more titanium compounds, one or more vanadium compounds, one or more aluminium compounds, one or more magnesium compounds and optionally one or more halogen compounds, in such amounts that the atomic ratio of magnesium to the sum of titanium and vanadium is between 0 and 10, the atomic ratio of aluminium to the sum of titanium and vanadium is at least 3, the atomic ratio of aluminium to magnesium is at least 1, and the atomic ratio of halogen to magnesium is at least 2,B: one or more organoaluminium compounds, which two components are, separately or in combination, supplied direct to the polymerization vessel.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: May 7, 1991
    Assignee: Stamicarbon, B.V.
    Inventors: Luc M. C. Coosmans, Johannes Blenkers, Jacobus Loontjens