Patent ID: 7728084
Filing Date: 2010-06-01
Classification: C08F

Abstract:
1. A process for producing polymer comprising polymerizing 70% by weight or more ethylene and optionally one or more comonomers in the presence of a Ziegler-Natta catalyst system and a diluent to form a slurry of polymer solids, wherein the diluent comprises at least 5 volume percent of a fluorinated hydrocarbon based on the total volume of the diluent, wherein: said process is conducted at a temperature of greater than or equal to 30° C.; the fluorinated hydrocarbon is not a perfluorinated C the polymer has a melting temperature of greater than or equal to 75° C.; and the catalyst may be supported or unsupported and when supported the molar ratio of the fluorinated hydrocarbon to the Ziegler-Natta transition metal component is greater than 500:1.