Patent ID: 8962775
Filing Date: 2015-02-24
Classification: C08F,Y10S

Abstract:
1. A polymerization process comprising: introducing ethylene and at least one alpha olefin to a gas-phase reactor; introducing a catalyst slurry comprising a supported polymerization catalyst and a mineral oil to the reactor; and polymerizing the ethylene and the at least one alpha olefin in the presence of the supported polymerization catalyst; wherein said supported polymerization catalyst comprises: i) a phosphinimine catalyst having the formula ((R*)(Ar—F)C where R* is hydrogen or a hydrocarbyl group, Ar—F is a perfluorinated aryl group, a 2,6 fluoro substituted phenyl group, a 2,4,6 fluoro substituted phenyl group, or a 2,3,5,6 fluoro substituted phenyl group; and X is an activatable ligand; ii) a cocatalyst, and iii) an inert support.