| abstract |
Catalyst component for olefin polymerization, comprising an electron donor belonging to Mg, Ti and a specific mercaptoester derivative of formula (I) Wherein Z is selected from C, Si, O, N, S or P with the proviso that the O, S, P and N atoms do not directly bond to any of the carboxyl or sulfur atoms of formula (I) 2 groups are the same or different and are a C 1 -C 20 hydrocarbon radical optionally containing a heteroatom selected from hydrogen or P, S, N, O and Si, which may be fused together to form one or more cycles , m is a number satisfying the valence of Z, n is an integer of 1 to 10, X is O or S, Y is -OR 3 , -NR 4 R 5 or R 6 groups wherein R 1 and R 3 are selected from C 1 -C 15 hydrocarbon groups optionally containing a heteroatom selected from halogen, P, S, N, O, and Si, and R 4 to R 5 groups Independently, is hydrogen or an R 1 group, and the R 6 group has the same meaning as the R 1 group. |