Catalyst for polymerization of olefins

Details Catalyst for polymerization of olefins Catalyst for polymerization of olefins

C - Chemistry, Metallurgy

08

F

C08F 4/649 (2006.01) C08F 4/643 (2006.01) C08F 4/645 (2006.01) C08F 10/00 (2006.01) C08F 12/08 (2006.01) C08F 36/00 (2006.01) C08F 4/659 (2006.01)

Patent

CA 2164161

A catalyst useful for the production of olefinic polymers which comprises a compound (A) of the formula Me1(OR1)pR2qX14-pq ...... I where R1 and R2 each are C1-C24 hydrocarbon moieties, X1 is a halogen atom, Me1 is titanium, zirconium or hafnium, p is 0 p 4, q is 0 q 4, and p+q is 0 p+q 4; a metal hydride compound (B) consisting at least of one of the compounds of the formulae: (Ba) Me2HaR33-a ..... II (Bb) Me3[Me2HbR4(OR5)4-b-c]z ..... III and (Bc) Image ..... IV wherein R3, R4, R5 and R6 each are C1-C24 hydrocarbon moieties, Me2 is an element of Group 13 in the Periodic Table, Me3 is an element of Group 1, 2 or 12 in the Periodic Table, Z is a valence of Me3, a, b, c and d are 1 a 3, 1 b 4, 0 c 3, 0 d 4, respectively and 1 b+c 4; an organocyclic compound (C) having two or more conjugated double-bonds; and a borate and/or borane (D). The invention further contemplates the incroporation into the above composition of a modified organoaluminum compound (E) having Al-O-Al bonds to provide enhanced catalytic performance.

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