Catalyst component for use in .alpha.olefin polymerization...

Details Catalyst component for use in .alpha.olefin polymerization... Catalyst component for use in .alpha.olefin polymerization...

C - Chemistry, Metallurgy

08

F

252/109, 402/645

C08F 4/64 (2006.01) C08F 4/60 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1140524

ABSTRACT OF THE DISCLOSURE A supported titanium catalyst adaptable for use in stereoregular polymerization of .alpha.-olefins, produced by a process comprising: cogrinding, in combination, a magnesium halide, a tetravalent titanium halide, in any amount of from about 0.1 to about 10 % by weight as supported titanium metal in the resulting titanium-containing solid product, from about 0.1 to about 10 moles per 1 gram atom of supported titanium metal of an ester of a saturated or unsaturated aliphatic, alicylic, and aromatic mono- or poly- carboxylic acid and an aliphatic, alicylic, and araliphatic mono- or polyols and an organo halogen compound in the proportion of 1-100% by weight to the magnesium halide, said organo halogen compound being one of mono- 1-20 carbon atoms; and recovering the resulting titanium solid product as said supported titanium catalyst, wherein the intensity of the 30.2° peak is reduced compared to the characteristic x-ray diffraction lines of normal magnesium halide.

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