C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/375, 402/626
C08F 4/60 (2006.01) C08F 4/02 (2006.01) C08F 10/00 (2006.01)
Patent
CA 1142161
ABSTRACT An improved catalyst composition adaptable for use in .alpha.-olefin polymerization is disclosed which comprises a mixture of: (a) Group IVB to VIII transition metal halide on a support; and (b) an alkyl metal compound having the formula: RnMR'3-n wherein M is selected from the group consisting of aluminum, gallium or indium, R is selected from the group consisting of a C3-C20 secondary or tertiary alkyl, cycloalkyl, alkenyl or aralkyl group, or a Image group, wherein R" is a methyl or ethyl group and R''' is a C1 to C10 alkyl group, R' is selected from the group consisting of C1-C20 primary alkyl, alkenyl or aralkyl or hydride; and n = 1-3, wherein said composition includes at least one Lewis base, with the proviso that said Lewis base does not cause excessive cleavage of metal-carbon bonds or loss of active sites.
322027
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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