C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
252/107, 402/645
C08F 4/64 (2006.01) C08F 10/00 (2006.01)
Patent
CA 1138409
ABSTRACT OF THE DISCLOSURE The invention concerns a catalyst system comprising (A) a halogen compound of trivalent titanium, (B) an organo- aluminum compound of the formula, R3-(m+n)AlYmXn wherein Y is a group having at least one of oxygen, nitrogen, sulfur and phosphorus atoms linked to the aluminum atom, R is a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, a cycloalkyl group having 3 to 18 carbon atoms, an aryl group having 6 to 18 carbon atoms, or an aralkyl group having 7 to 18 carbon atoms, X is a halogen atom, and m and n are numbers satisfying the equations, 0 < m < 1, 0 ? n < 2, 0 < m+n ? 2, and (C) an electron-donor. The invention also concerns a method for producing olefin polymers which comprises polymerizing olefins in the presence of the catalyst system defined above. According to this method, highly crystalline olefin polymers having a broad molecular weight distribution can be produced, these polymers being particularly useful for extrusion molding and blow molding.
354380
Fukui Yoshiharu
Matsuura Hideaki
Okawa Masahisa
Sasaki Toshio
Shiga Akinobu
Kirby Eades Gale Baker
Sumitomo Chemical Company Limited
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