Catalysts for the polymerization of olefins

Details Catalysts for the polymerization of olefins Catalysts for the polymerization of olefins

C - Chemistry, Metallurgy

08

F

402/432, 402/438

C08F 4/64 (2006.01) C07F 7/00 (2006.01) C07F 9/00 (2006.01) C07F 13/00 (2006.01) C08F 10/00 (2006.01)

Patent

CA 1091643

ABSTRACT OF THE DISCLOSURE: New components of catalysts for the polymerization of olefins, consist of metal complexes having the general formula MM'TY . n E, wherein M = Mg, Mn or Ca; M' = Ti, V or Zr; T = oxygen, the anion CO3", or a pair of monovalent groups selected from the group consisting of: Image , Image , Image and Image in which R is an alkyl, cycloalkyl, aryl or arylalkyl radical having up to 20 C atoms; Y = one or more atoms or groups selected among halogen atoms, halogen atoms and, contemporane- ously, oxygen atoms, -NR'2, -OR', -SR', Image , Image (in which R' is a hydrocarbon radical), acetylacetonate anion, acetylacetonate anion and, contemporaneously, oxygen atoms, in a number capable of satisfying the valence of the metal M'; n = a number from 0.5 to 20; E = an electron-donor, for instance an ester or an alcohol. The catalysts which are obtained from these components are highly active in the polymerization of ethylene, alpha-olefins and mixtures of ethylene with alpha-olefins.

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