Patent ID: 6812184
Filing Date: 2004-11-02
Classification: B01J,C08F,Y10S

Abstract:
A transition metal catalyst system for olefin polymerization comprising:I) a transition metal compound represented by the formula: LMXr wherein: (a) M is a Group 9, 10 or 11 metal; (b) L is a bidentate ligand defined by the formula: (vi) A is a bridging group containing a Group 13-15 element; (vii) each E is independently a Group 15 or 16 element covalently bonded to M; (viii) each R is independently a C1-C30 radical or diradical group which is a hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, hydrocarbyl-substituted organometalloid, or halocarbyl-substituted organometalloid; (ix) m and n are independently 1 or 2; and (x) p is the charge on the bidentate ligand such that the overall charge of LMXr is neutral; (c) each X is, independently, a hydride radical, a hydrocarbyl radical, a substituted hydrocarbyl radical, a halocarbyl radical, a substituted halocarbyl radical, hydrocarbyl-substituted organometalloid or halocarbyl-substituted organometalloid; a neutral hydrocarbyl-containing donor ligand; a univalent anionic ligand; a neutral non-hydrocarbyl atom containing donor ligand; or two Xs are joined and bound to the metal atom to form a metallacycle ring containing from about 2 to about 20 carbon atoms; or two Xs are joined to form an anionic chelating ligand; and (d) r is 1, 2 or 3; II) an activator; and III) a solid support wherein said transition metal compound is immobilized on said support, where the transition metal loading is less than 100 micromoles transition metal per gram of solid support.