Internal and External Donor Compounds for Olefin Polymerization Catalysts III

A solid catalyst component for use in olefinic polymerization, comprising a reaction product of a titanium compound, a magnesium compound, and an internal electron donor compound, wherein said internal electron donor compound comprises at least one 1,8-naphtyl diester compound represented by chemical formula (I):

• wherein R1-R6 are independently hydrogen, halogen, C1-C6 linear or branched alkyl, C6-C10 cycloalkyl, phenyl, C7-C10 alkylaryl, or C7-C18 arylalkyl radicals;
• R7 and R8, which are identical or different, are C1-C20 linear or branched alkyl, C5-C20 cycloalkyl, C5-C20 cycloalkenyl, C5-C20 cyclodialkenyl, phenyl, C7-C18 alkylaryl, or C7-C18 arylalkyl radicals.

A method of making a solid catalyst component for a catalyst system, comprising:

• contacting a magnesium compound and a titanium compound with an internal electron compound, wherein said internal electron compound comprises at least one 1,8-naphthyl diester compound represented by chemical formula (I):
• wherein R1-R6 are independently hydrogen, halogen, C1-C6 linear or branched alkyl, C6-C10 cycloalkyl, phenyl, C7-C10 alkylaryl, or C7-C18 arylalkyl radicals;
• R7 and R8, which are identical or different, are C1-C20 linear or branched alkyl, C5-C20 cycloalkyl, C5-C20 cycloalkenyl, C5-C20 cyclodialkenyl, phenyl, C7-C18 alkylaryl, or C7-C18 arylalkyl radicals.