Patents Assigned to DSM B.V.
  • Indenyl compounds for the polymerization of olefins
    Patent number: 6342622
    Abstract: Indenyl compound of formula (1) wherein: M is a transition metal from the lanthanides or from group 3, 4, 5 or 6 of the Periodic System of Elements, Q is an anionic ligand to M, k is the number of Q groups, R is a bridging group and Z and X are substituents, wherein R contains at least one sp2-hybridized carbon atom that is bonded to the indenyl group at the 2-position with the exclusion of Ti(deshydronorbiphenacene) dichloride.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: January 29, 2002
    Assignee: DSM B.V.
    Inventors: Henricus J. Arts, Mirko Kranenburg, Ramon H. A. M. Meijers, Edwin G. Ijpeij, Gerardus J. M. Gruter, Felix H. Beijer