The process 1 for producing polypropylene which comprises polymerizing propylene in the presence of a catalyst comprising magnesium containing {HEAD ~ solid titanium catalyst component} obtained by contacting magnesium chloride, titanium tetrachloride and di 2 ethylhexyl indane 2,3 dicarboxylate triethylaluminum and {TAIL ~ diphenyldimethoxy silane} 
obtained by contacting
The process 1 for producing polypropylene which comprises polymerizing propylene in the presence of a catalyst comprising magnesium containing { HEAD ~ solid titanium catalyst component } obtained by contacting magnesium chloride , titanium tetrachloride and di 2 ethylhexyl indane 2,3 dicarboxylate triethylaluminum and { TAIL ~ diphenyldimethoxy silane }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL