Patent Number: 6,166,153

Title: Process for the syndiotactic propagation of olefins

Abstract: The invention provides a process for commercial production of syndiotactic polyolefins using a metallocene catalyst supported on silica treated with MAO. The invention includes contacting the supported metallocene catalyst with an aluminum alkyl and aging the catalyst prior to polymerization. In addition, the catalyst is prepolymerized in a tubular reactor prior to being introduced into the polymerization reaction zone.

Inventors: Shamshoum; Edwar S. (Houston, TX), Bauch; Christopher G. (Seabrook, TX), Reddy; B. Raghava (Baytown, TX), Rauscher; David J. (Angleton, TX), McGovern; Kevin P. (Friendswood, TX)

Assignee: Fina Technology, Inc.

International Classification: B01J 31/14 (20060101); B01J 31/16 (20060101); B01J 31/12 (20060101); C08F 4/00 (20060101); C08F 4/02 (20060101); C08F 004/42 ()

Expiration Date: 12/26/2017