Components and catalysts for the polymerization of olefins

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

C - Chemistry, Metallurgy

08

F

C08F 4/649 (2006.01) C08F 10/00 (2006.01)

Patent

CA 2334743

The present invention relates to a solid catalyst component for the polymerization of olefins CH2=CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from substituted succinates of a particular formula. Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give polymers in high yields and with high isotactic index expressed in terms of high xylene insolubility.

La présente invention concerne un constituant catalyseur solide destiné à la polymérisation d'oléfines CH2=CHR dans lesquelles R représente hydrogène ou un radical hydrocarboné présentant 1-12 atomes de carbone, comprenant Mg, Ti, de l'halogène et un donneur d'électrons choisi entre des succinates substitués d'une formule particulière. Lesdits constituants catalyseurs, lorsqu'ils sont utilisés dans la polymérisation d'oléfines, et en particulier de propylène, sont capables de donner des polymères à hauts rendements, présentant également un indice isotactique élevé exprimé en terme d'insolubilité élevée du xylène.

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