Patent ID: 6528596
Filing Date: 2003-03-04
Classification: C08F

Abstract:
A catalyst for olefin polymerization obtained by contacting modified particles (A) with a transition metal compound (B), wherein the modified particles (A) are obtained bycontacting particles (a) with a metal compound (b) represented by the general formula (1): R1nAX1aâˆ’nâ€ƒâ€ƒ(1) wherein A is a metal atom selected from the group consisting of a samarium atom, chromium atom, manganese atom and tin atom, R1 represents a hydrocarbon or a hydrocarbon oxy group, X1 represents a halogen atom or a hydrogen atom, n represents a numeral which satisfies the expression: 0&lE;n&lE;a, and a represents a valence of A, andcontacting the resulting particles with a compound (c) having a functional group containing active hydrogen or a non-proton donative Lewis basic functional group, and an electron-withdrawing group.