Patent ID: 6906154
Filing Date: 2005-06-14
Classification: C08F

Abstract:
1. An olefin polymerization catalyst comprising: (A) a solid catalyst component comprising magnesium, titanium, halogen and an electron-donating compound selected from ether compounds having at least two ether groups and that, under a complexing test of the ethers with, MgCl (B) an organic aluminum compound; and (C) an alkoxyester compound represented by the general formula (I): in which each of R 1 , R 2 , R 3 and R 4 is, independently, selected from the group consisting of (i) an aliphatic hydrocarbon group, (ii) an alicyclic hydrocarbon group, (iii) an aromatic hydrocarbon group, (iv) a polycyclic hydrocarbon group, and (v) a heterocyclic compound group; Z is an aliphatic or alicyclic hydrocarbon group which may be substituted with an aromatic group or a polycyclic group; and i, j and k each are integers from 0 to 3, with the proviso that the sum of i, j and k is at least 1.