C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
260/427, 402/626
C07F 7/28 (2006.01) C07F 9/00 (2006.01) C08F 10/00 (2006.01)
Patent
CA 1248541
ABSTRACT OF THE DISCLOSURE An intermetallic compound is disclosed formed by (a) mixing a compound having the structural formula R(R')Mg where R and R' are the same or different and are hydrocarbyl of 1 to 10 carbon atoms with a compound having the structural formula R1mSi(OR2)nX4-(m+n) where R1 and R2 are the same or different and are alkyl having from 1 to 10 carbon atoms, phenyl, alkaryl having from 7 to 10 carbon atoms or alkenyl having from 2 to 10 carbon atoms; X is halogen; n is an integer of 1 to 4; and m is 0 or an integer of 1 to 3, wherein a product is formed; (b) mixing the product of step (a) with an organo- metallic compound, the metal of said organometallic compound being a metal of Group IVb of Vb of the Periodic Table of the Elements, wherein a product is formed; and (c) reacting the product of step (b) with an organometallic compound, said organometallic compound containing at least one halogen atom, said metal in said organometallic compound selected from the group consisting of zirconium, vanadium, boron, silicon, titanium and aluminum. A catalyst system comprising the intermetallic compound and an organometallic compound is also taught. In addition, a process for polymerizing at least one alpha-olefin in the presence of a catalytically effective amount of said catalyst system is set forth.
511436
Rekers Louis J.
Shelly Javan
Equistar Chemicals Lp
Mcfadden Fincham
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