Patent ID: 6255418
Filing Date: 2001-07-03
Classification: C07F,C08F,Y10S

Abstract:
A polymerization catalyst, containing at least one organochromium compound of general formula I: ##STR15##whereinR.sup.1 contains a delocalized .eta..sup.5 -coordinated .pi. system;X is an electronegative atom, halogen, amide, or organyl group, or CrX.sub.2 is a metallacyclic fragment;Y is a donor atom of group 15 (N, P, As, Sb, Bi) of the Periodic Table;Z is an atom of group 14 (C, Si, Ge, Sn, Pb) of the Periodic Table;R' are H, organyl groups;R"" are H, organyl groups; andn.gtoreq.1.