C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
252/107, 400/205
C08F 4/64 (2006.01) C08F 10/00 (2006.01)
Patent
CA 1140913
ABSTRACT OF THE DISCLOSURE A process for producing .alpha.-olefin polymers of a high stereoregularity which comprises homopolymerizing an .alpha.-olefin having 3 to 10 carbon atoms or copolymerizing said .alpha.-olefin with other olefins of the same group or with ethylene using a catalyst system comprising three components (A), (B) and (C): (A) a solid catalyst produced by reaction among a solid product described below, a compound group (III) comprising at least one compound having an O-C=O linkage and at least one compound having at least one member selected from C-O-H, C-O-C, C-N, C-N, N-O-C, P-O-C, P-N-C, C-S-H, C-S-C, S-O-C and P-S-C linkages and having no O-C=O linkages, and a titanium compound having at least one titanium-halogen link- age, said solid product being produced by reacting an organo- magnesium compound with at least one of the following halogen-containing compounds (I) and (II), (I) a halogeno- silicon compound of the formula, RnSiX4-n (in which R is a hydrocarbon group having 1 to 8 carbon atoms, X is a halogen atom and n is a number satisfying the equation, O?n<4), (II) a halogeno-aluminum compound of the formula, R?AlX3-? (in which R is a hydrocarbon group having 1 to 8 carbon atoms, X is a halogen atom and ? is a number satisfying the equation, O??<3), (B) an activating agent of the formula, RmAlY3-m (in which R is a hydrocarbon group having 1 to 8 carbon atoms, Y is a halogen or hydrogen atom, and when Y is a halogen atom, m is a number satisfying the equation, 2<m?3, and when Y is a hydrogen atom, m is a number satisfying the equation, 2?m?3), (C) at least one electron donor having at least one nitrogen, oxygen phosphorus or sulfur atom.
358252
Fukui Yoshiharu
Matsuura Hideaki
Okawa Masahisa
Sasaki Toshio
Shiga Akinobu
Marks & Clerk
Sumitomo Chemical Company Limited
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