Patent ID: 6723807
Filing Date: 2004-04-20
Classification: C07F,C08F

Abstract:
A catalyst for addition polymerization obtained by a process comprising bringing a transition metal compound (A) represented by the general formula (1):[LpXoCpjM(N2)nMâ€²XmLl]Xâ€²k[1], wherein M and Mâ€² each independently represents a transition metal atom of Group 3 to 10 in the Periodic Table of the Elements; X each independently represents a hydrogen atom, halogen atom, alkyl group, aralkyl group, aryl group, substituted silyl group substituted with a hydrocarbon group, alkoxy group, aralkyloxy group, aryloxy group, di-substituted amino group substituted with two hydrocarbon groups, azido group, cyano group or isothiocyanate group; Cp is a group having a cyclopentadiene anion skeleton; L represents a group which bonds to M or Mâ€² by lone pair of electrons or a &pgr;electron; Xâ€² represents a counter anion; k, l, m, o and p each independently represent an integer of 0 to 5; j represents an integer of 0 to 2; n+o+p+j&lE;6; n represents an integer of 1 to 3; and n+l+m&lE;6, into contact withan organoaluminum compound selected from the group consisting of the following (B 1), and at least one aluminoxane selected from the group consisting of the following (B2) and (B3) and/or the following (C): (B1) organoaluminum compounds of the general formula E1aAlZ3-a, (B2) cyclic aluminoxanes having a structure of the general formula {â€”Al(E2)â€”Oâ€”}b, (B3) linear aluminoxanes having a structure of the general formula E3{â€”Al(E3)â€”Oâ€”}cAlE32, â€ƒ(wherein, each of E1, E2 and E3 represents a hydrocarbon group; all E1s, all E2s or all E3s maybe the same or different; Z represents a hydrogen atom or halogen atom; all Zs may be the same or different; a represents a number satisfying 0(C) one or more boron compounds selected from the following (Cl) to (C3): (C1) boron compounds represented by the general formula BQ1Q2Q3, (C2) boron compounds represented by the general formula G+(BQ1Q2Q3Q4)â€”, and (C3) boron compounds represented by the general formula (L-H)+(BQ1Q2Q3Q4), â€ƒwherein, B represents boron in trivalent state; Q1 to Q4 represent a halogen atom, hydrocarbon group, halogenated hydrocarbon group, substituted silyl group, alkoxy group or di-substituted amino group; they may be the same or different; G+represents an inorganic or organic cation; L represents a neutral Lewis base; and (L-H)+ represents a BÃ¸nsted acid.