Components and catalysts for the polymerization of olefines

Details Components and catalysts for the polymerization of olefines Components and catalysts for the polymerization of olefines

B - Operations, Transporting

01

J

252/105, 402/645

B01J 31/14 (2006.01) B01J 31/38 (2006.01) C08F 10/00 (2006.01) C08F 110/00 (2006.01)

Patent

CA 1185960

ABSTRACT OF DISCLOSURE Disclosed are catalysts for the polymerization of alpha-olefins which comprise the reaction product of: (a) an Al-alkyl compound; (b) a silicon compound containing at least one Si-OR or Si-OCOR or Si-NR2 bond, R being a hydrocarbyl radical; (c) a solid comprising, as essential support, a Mg dihalide in active form and, supported thereon, a Ti halide or a halo-Ti-alcoholate and a particular type of electron donor compound. The present invention refers to new supported com- ponents of catalysts for the polymerization of CH2=CHR olefins wherein R is an alkyl radical with 1 to 4 carbon atoms, or an aryl radical, and mixtures of said olefins with ethylene and the catalysts obtained from said components.

383747

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