Patent ID: 7141634
Filing Date: 2006-11-28
Classification: B01J,C08F

Abstract:
1. A catalyst for olefin polymerization comprising: (A) a solid catalyst component prepared by causing (a) a magnesium compound, (b) a tetravalent titanium halide compound, and (c) an electron donor compound to come in contact with each other, (B) an organoaluminum compound of the following formula (1), wherein R 1 represents an alkyl group having 1–4 carbon atoms, Q represents a hydrogen atom or a halogen atom, and p represents a real number satisfying the formula 0<p≦3, (C) cyclohexycyclopentyldimethoxysilane, (D) an organosilicon compound of the following formula (3), wherein R 6 individually indicates a halogen atom selected from the group consisting of a chlorine atom, a bromine atom, and an iodine atom, a linear or branched alkyl group having 1–12 carbon atoms, with one or two hydrogen atoms replaced by halogen atoms, or a linear or branched alkyl group or cycloalkyl group having 1–12 carbon-atoms, R 7 individually represents an alkyl group having 1–4 carbon-atoms, cycloalkyl group, phenyl group, vinyl group, allyl group, or an aralkyl group, and x is an integer of 0, 1 or 2, provided that when x is 1 or 2, at least one of R 6 groups is a halogen atom or a linear or branched alkyl group having 1–12 carbon atoms with one or two hydrogen atoms replaced by halogen atoms.