Patent ID: 7524789

Claim:
A process for producing a modified particle, a carrier or a catalyst component for addition polymerization, which comprises the steps of: (1) contacting a compound (a) represented by the following formula (i) with a compound (b) represented by the following formula (ii), thereby producing a contact product, and (2) contacting the contact product with a porous material (d), and then with a compound (c) represented by the following formula (iii), in this contact order, M 1 L 1 3 (i), R 1 t-1 TH (ii), and R 2 t-2 TH 2 (iii), wherein M 1 is an Al atom; L 1 is a hydrogen atom, a hydrocarbon group or a halogen atom, and three L 1 s are the same as or different from one another; R 1 is an electron-withdrawing group or an electron-withdrawing group-containing group, and when more than one R 1 exist, they are the same as or different from one another; R 2 is a hydrocarbon group or a halogenated hydrocarbon group; T is independently of each other a nitrogen or oxygen atom; and t is a number corresponding to the valence of T.