Retreating comminuted olefin polymerization catalyst with a...

Details Retreating comminuted olefin polymerization catalyst with a... Retreating comminuted olefin polymerization catalyst with a...

C - Chemistry, Metallurgy

08

F

252/105

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

Patent

CA 1194852

Abstract of the Disclosure A comminuted, supported polymerization catalyst for alpha-olefins comprises (A) an organoaluminum compound and (B) a solid titanium-containing com- ponent formed by (1) comminuting a solid reaction product comprising (a) at least one halogen-contain- ing compound of titanium (IV); (b) at least one electron donor; and (c) at least one hydrocarbon- insoluble magnesium-containing compound; and (2) retreating such comminuted product with (a) at least one halogen-containing compound of titanium (IV); (b) at least one haloalkylchlorosilane; and (c) at least one organic acid ester.

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