Patent ID: 6140432
Filing Date: 2000-10-31
Classification: C08F

Abstract:
A method for forming a supported metallocene catalyst system, the method comprising combining an inorganic oxide support material, a metallocene catalyst component, an activator and a surface modifier wherein the surface modifier is represented by the following formula: ##STR6## wherein R.sup.3 is hydrogen or a branched or linear alkyl group having 1 to 50 carbon atoms; R.sup.1 is hydrogen or a branched or linear alkyl group having 1 to 50 carbon atoms which may contain a heteroatom selected from O, N, P or S; and R.sup.2 is (CH.sub.2).sub.x OH wherein x is an integer from 1 to 50 and wherein the weight percent of the surface modifier based on the total weight of the catalyst system is in the range of from 0.25 to 3.5 weight percent.