Patent ID: 6686306
Filing Date: 2004-02-03
Classification: C08F

Abstract:
A coordination polymerization catalyst system comprising:(I) as a pre-catalyst, at least one each of a Group (1) material and a Group (2) material wherein said Group (1) material is at least one metallocene or constrained geometry transition metal compound capable of (i) being activated upon contact with a support-activator (II)(B) or (ii) being converted, upon contact with an organometallic compound, to an intermediate capable of being activated upon contact with said support-activator (II)(B), wherein the transition metal is at least one metal selected from the group consisting of Groups 3, 4 and the Lanthanide metals of the Periodic Table of Elements; and wherein said Group (2) material is at least one non-metallocene, non-constrained geometry, bidentate transition metal compound or tridentate transition metal compound capable of (i) being activated upon contact with said support-activator (II)(B) or (ii) being converted, upon contact with an organometallic compound, to an intermediate capable of being activated upon contact with said support-activator (II)(B), wherein the transition metal is at least one member selected from Groups 3 to 10 of the Periodic table; in intimate contact with (II) catalyst support-activator agglomerate particles comprising a composite of (A) at least one inorganic oxide component selected from SiO2, Al2O3, MgO, AlPO4, TiO2, ZrO2, or Cr2O3 and (B) at least one ion containing layered material having interspaces between the layers, said support-activator having sufficient Lewis acidity to activate said pre-catalyst when said pre-catalyst is in contact with said support-activator, said layered material having a cationic component and an anionic component, wherein said cationic component is present within the interspace of the layered material, said layered material being intimately dispersed with said inorganic oxide component within said agglomerate particle in an amount sufficient to provide a coordination catalyst system having the ability to polymerize at least one unsaturated monomer; wherein the amount of the pre-catalyst and support-activator which is in intimate contact is sufficient to provide a ratio of micromoles of pre-catalyst to grams of support-activator of from about 5:1 to about 500:1.