Patent ID: 8652986

Claim:
A Ziegler-Natta catalyst for olefin polymerization comprising an internal electron donor an amide compound: selected from the group consisting of N-benzoyl-N-methylbenzamide, N-benzoyl-N-ethylbenzamide, N-benzoyl-N-propylbenzamide, N-benzoyl-N-isopropylbenzamide, N-benzoyl-N-butylbenzamide, N-benzoyl-N-hexylbenzamide, N-benzoyl-N-cylcopentylbenzamide, N-benzoyl-N-cyclohexylbenzamide, N-benzoyl-N-phenylbenzamide, N-propionyl-N-methylbenzamide, N-propionyl-N-ethylbenzamide, N-propionyl-N-propylbenzamide, N-propionyl-N-isopropylbenzamide, N-propionyl-N-butylbenzamide, N-propionyl-N-hexylbenzamide, N-propionyl-N-cyclopentylbenzamide, N-propionyl-N-cyclohexylbenzamide, N-propionyl-N-methylbenzamide, N-butyryl-N-ethylbenzamide, N-butyryl-N-propylbenzamide, N-butyryl-N-isopropylbenzamide, N-butyryl-N-butylbenzamide, N-butyryl-N-hexylbenzamide, N-butyryl-N-cyclopentylbenzamide and N-butyryl-N-cyclohexylbenzamide.