Patent ID: 9315601
Filing Date: 2016-04-19
CPC Classification: C08F

Claim Text:
1. A solid catalyst component for olefin polymerization, comprising: magnesium; titanium; a halogen; and an internal electron donor, wherein the internal electron donor comprises an asymmetrical phthalic diester represented by formula (1) in a molar ratio of 0.2 to 0.8 relative to a total content of the internal electron donor, where R 1 is a halogen atom or an alkyl group having 1 to 20 carbon atoms, R 2 is a linear or branched alkyl group having 2 to 6 carbon atoms, or an alkenyl group, R 3 is a linear or branched alkyl group having 1 to 5 carbon atoms, the number of carbon atoms included in R 3 is smaller than the number of carbon atoms included in R 2 , and k is an integer from 0 to 4.