Abstract: Zirconocene compounds with two indenyl ligands linked in the 2 position by means of a two-carbon-atoms divalent bridging group can be suitably used as components of catalysts for the polymerization of olefins. Particularly it is possible to prepare, with high yields, ethylene (co)polymers having low molecular weights and narrow molecular weight distributions, without the need of using considerable amounts of molecular weight regulators, such as hydrogen.
Type:
Grant
Filed:
March 9, 1999
Date of Patent:
May 15, 2001
Assignee:
Montell Technology B.V.
Inventors:
Colin J. Schaverien, Renè Ernst, Jan-Dirk van Loon, Tiziano Dall′occo