C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
252/95
C08F 4/76 (2006.01) C08F 4/646 (2006.01) C08F 10/02 (2006.01) C08F 210/16 (2006.01)
Patent
CA 1335093
A solid catalyst component for the polymerization of ethylene and the copolymerization of ethylene with C3-C10 alpha-olefins, contains titanium, vanadium and chlorine, is substantially definable by the formula (in atomic proportions): V (1), Ti (n), Cl (3n) where n varies from 1 to 3, and is prepared by reacting titanium tetrachloride with a vanadium arene [V° (arene)2] (arene = benzene or mono-, di- or tri-alkyl substituted benzene) in accordance with the equation: V° (arene)2 + nTiCl4 ----> VTinCl4n + 2 arene possibly followed by treatment with an alkyl aluminium chloride. This catalyst component, when associated with a trialkyl aluminium, is highly active in the production of ethylene polymers and copolymers by low temperature, low pressure methods in suspension, or by high temperature, high pressure methods conducted in a tubular reactor or pressure vessel, or by high temperature methods conducted in solution.
610416
Calderazzo Fausto
Invernizzi Renzo
Masi Francesco
Moalli Angelo
Pampaloni Guido
Enichem Anic S.p.a.
Robic
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