Patent ID: 6087293
Filing Date: 2000-07-11
Classification: C08F,Y10S

Abstract:
A support for use in preparing supported catalysts for addition polymerizations comprising the reaction product of:(A) an inorganic oxide material comprising a solid matrix selected from the group consisting of porous silicas, aluminas, aluminosilicates, aluminophosphates, clays, titanias, and mixtures thereof, and reactive silane functionalized derivatives of hydroxyl groups on the surface thereof, said reactive silane functionalized derivatives of hydroxyl groups corresponding to the formula:--OSiR.sub.2 H,wherein R, independently each occurrence, is hydrogen, or C.sub.1-20 hydrocarbyl, said inorganic oxide material comprising less than 1.0 mmol of hydroxyl groups per gram, and(B) an activator compound comprising:b.sub.1) a cation which is capable of reacting with a transition metal compound to form a catalytically active transition metal complex, andb.sub.2) a compatible anion containing at least one substituent able to react with the silane functionalized derivatives of hydroxyl groups on the surface of the inorganic oxide material, thereby covalently bonding the compatible anion to the support.