Process for the polymerization of olefins

Details Process for the polymerization of olefins Process for the polymerization of olefins

C - Chemistry, Metallurgy

08

F

C08F 10/00 (2006.01) C08F 4/642 (2006.01) C08F 10/06 (2006.01) C08F 110/06 (2006.01)

Patent

CA 2452573

Process for the polymerization of olefins CH=CHR, in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, carried out in the presence of a catalyst component (A) comprising Mg, Ti and halogen as essential elements and of a catalyst component (B) capable to produce, under the same polymerization conditions, a polymer with an average particle size lower than that obtainable with the said catalyst component A. The said process provides polymers with increased bulk density.

L'invention concerne un procédé de polymérisation d'oléfines CH¿2?=CHR, dans lesquelles R est hydrogène ou un radical hydrocarboné qui comporte entre 1 et 12 atomes de carbone. Ce procédé est réalisé en présence d'un composant catalyseur (A) comprenant Mg, Ti et halogène en tant que composants essentiels; et d'un composant catalyseur (B) pouvant produire, dans des conditions identiques de polymérisation, un polymère présentant une taille moyenne de particule inférieure à celui pouvant être obtenu au moyen du composant catalyseur A. Ledit procédé permet d'obtenir des polymères présentant une densité apparente augmentée.

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