Basell Poliolefine Italia, S.p.a.

Ronald R Andrea

Giampiero Morini

Giulio Balbontin

Van Loon Jan Dirk

Jan Dirk Van Loon

An internal electron-donor compound selected from the 1,3-diethers of formula (I) in which R is a C&#x2013;Calkyl group, Ris a linear or branched primary alkyl radical having at least three carbon atoms, optionally containing a heteroatom, and Ris a secondary alkyl or cycloalkyl radicals different from i-propyl, optionally containing a heteroatom.

Catalyst component for the (CO)polymerization of olefins

Solid catalyst components comprising Ti,Mg, halogen and internal electron-donor compound selected from the 1,3-diethers of formula (I) in which R is a C-Calkyl group, Ris a linear or branched primary alkyl radical having at least three carbon atoms, optionally containing a heteroatom, and Ris a secondary alkyl or cycloalkyl radicals different from i-propyl, optionally containing a heteroatom. The catalysts obtained by using as internal electron-donor compound the said 1,3-diethers display in the (co)polymerization of olefins an excellent balance of activity and stereospecificity that cannot be reached with the ethers known in the art.

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Ijsselstein, Netherlands

Ronald R Andrea