Components of catalysts for polymerizing alpha-olefins and...

Details Components of catalysts for polymerizing alpha-olefins and... Components of catalysts for polymerizing alpha-olefins and...

C - Chemistry, Metallurgy

08

F

252/105, 23/175,

C08F 4/64 (2006.01) C08F 4/02 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1131201

ABSTRACT OF DISCLOSURE New components of catalysts for polymerizing alpha- olefins, and the catalysts formed from the new components are disclosed. Said catalyst components are prepared by reacting Ti compounds with a carrier in the form of spheroidal particles of specified characteristics and which consists of or comprises an Mg compound, or mixture of Mg compounds of the formula XNMG(OR)2-N (I) in which O<N<2, R is an alkyl, aryl, cycloalkyl radical con- taining from 1 to 20 carbon atoms X is halogen or a group OR" in which R" is an alkyl, aryl or cycloalkyl radical containing from 1 to 20 carbon atoms and is the same or different from R in formula (I).

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