Patent ID: 6541582
Filing Date: 2003-04-01
Classification: C08F

Abstract:
A solid catalyst component for the polymerization of olefins CH2&boxH;CHR, in which R is hydrogen or a hydrocarbyl radical with 1-12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from &bgr;-substituted glutarates of formula (I): wherein the radicals R1 and R2, equal to or different from each other, are H or a C1-C20 linear or branched alkyl, alkenyl, cycloalkyl, aryl, arylalkyl or alkylaryl group, optionally containing heteroatoms, and two or more of said radicals can also be joined to form a cycle, with the provisions that R1 and R2 are not contemporaneously hydrogen,R3, R4, R5, and R6 are hydrogen, R7 and R8 are equal to or different from each other, and are a C1-C20 linear or branched alkyl, alkenyl, cycloalkyl, aryl, arylalkyl or alkylaryl group, optionally containing heteroatoms, and R7 and R8 can also be joined to form a cycle, with the proviso that diisopropyl &bgr;-methyl glutarate is excluded.