Patent ID: 6465386
Filing Date: 2002-10-15
Classification: C08F

Abstract:
A polymerization catalyst comprising(1) a catalyst having a compound of the Formula (I): â€ƒwherein M is Fe[II], Fe[III], Co[I], Co[II], Co[III], Mn[I], Mn[II], Mn[III], Mn[IV], Ru[II], Ru[III] or Ru[IV]; X represents an atom or group covalently or ionically bonded to the transition metal M; T is the oxidation state of the transition metal M and b is the valency of the atom or group X; R1 to R5 and R23 to R28 are independently selected from the group consisting of hydrogen, halogen, hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl and substituted heterohydrocarbyl; R19 is an optionally substituted primary, secondary or tertiary hydrocarbyl or heterohydrocarbyl group; when R19 is an optionally substituted primary hydrocarbyl or heterohydrocarbyl group, one of R20 to R22 is hydrogen and the others of R20 to R22 are each independently hydrogen, halogen or an optionally substituted primary hydrocarbyl or heterohydrocarbyl group; when R19 is an optionally substituted secondary hydrocarbyl or heterohydrocarbyl group, two of R20 to R22 are hydrogen and the other of R20 to R22 is hydrogen, halogen or an optionally substituted primary or secondary hydrocarbyl or heterohydrocarbyl group; when R19 is an optionally substituted tertiary hydrocarbyl or heterohydrocarbyl group, R20 to R22 are all hydrogen; and any two or more of R19 to R28 can be linked to form one or more cyclic substituents; and (2) a further catalyst for the polymerization of 1-olefins which is different from catalyst (1); with the proviso that when catalyst (1) is 2,6-diacetylpyridinebis(2-methylanil)FeCl2, then catalyst (2) is not one of 1,1-dimethylsilyl(1-tetramethylcyclopentadienyl)(1-t-butylamino)titanium dichloride, propane-2,2-[(cyclopentadienyl)(1-fluorenyl)]zirconium dichloride, butane-2,3-(2,6-dimethylphenyl-1-imino)nickel dibromide, or 2,6-diacetylpyridinebis(2,4,6-trimethylanil)FeCl2.