Patent ID: 8318626

Claim:
A solid catalyst component for use in olefinic polymerization, comprising titanium, magnesium, halogen and an internal electron donor compound, wherein said internal electron donor compound comprises at least one 1,8-naphthyl diester compound represented by chemical formula (I): wherein R 1 -R 6 are independently hydrogen, halogen, C 1 -C 6 linear or branched alkyl, C 6 -C 10 cycloalkyl, phenyl, C 7 -C 10 alkylaryl, or C 7 -C 18 arylalkyl radicals; R 7 and R 8 , which are identical or different, are C 1 -C 20 linear or branched alkyl, C 5 -C 20 cycloalkyl, C 5 -C 20 cycloalkenyl, C 5 -C 20 cyclodialkenyl, phenyl, C 7 -C 18 alkylaryl, or C 7 -C 18 arylalkyl radicals.