| abstract |
A catalyst system comprising a combination of: 1) an activator; 2) one or more metallocene catalyst compounds; 3) a support comprising an organosilica material, which is a mesoporous organosilica material. The organosilica material is a polymer of at least one monomer of Formula [Z 1 OZ 2 SiCh 2 ] 3 (i), where Z 1 represents a hydrogen atom, a C1-C4 alkyl group, or a bond to a silicon atom of another monomer and Z 2 represents a hydroxyl group, a C 1 -C 4 alkoxy group, a C 1 -C 6 salkyl group, or an oxygen atom bonded to a silicon atom of another monomer. This invention further relates to processes to polymerize olefins comprising contacting one or more olefins with the above catalyst system. |