Patent ID: 9127106
Filing Date: 2015-09-08
Classification: C08F

Abstract:
1. A process for producing a polyethylene copolymer having a density of from 0.910 g/cm 3 to 0.927 g/cm 3 , a melt index (I 2 ) of from 0.25 to 5.0 g/10 min, a melt flow ratio (I 21 /I 2 )<20, and a molecular weight distribution (M w /M n )≦3.0; the process comprising polymerizing ethylene and an alpha olefin in a gas phase reactor with a polymerization catalyst comprising: i) a phosphinimine catalyst; ii) an inert support; iii) a cocatalyst; and iv) a catalyst modifier; wherein the catalyst modifier is present in from 0.25 to 6.0 weight percent based on the weight of i), ii) and iii) of the polymerization catalyst and comprises a compound having the formula: R