Patent ID: 7084223

Claim:
A process for olefin polymerization comprising: contacting in the gas phase: A) transition metal catalyst system for olefin polymerization comprising: I) a transition metal compound represented by the formula: LMX r wherein: (a) M is a Group 9, 10 or 11 metal; (b) L is a bidentate ligand defined by the formula: wherein (1) A is a bridging group containing a Group 13–15 element; (2) each E is independently a Group 15 or 16 element covalently bonded to M; (3) each R is independently a C 1 –C 30 radical or diradical group which is a hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, hydrocarbyl-substituted organometalloid, or halocarbyl-substituted organometalloid; (4) m and n are independently 1 or 2; and (5) p is the charge on the bidentate ligand such that the overall charge of LMX r 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, 2or 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; and B) olefin monomers.