ALKYLALUMINUM COMPOUND AND COORDINATION CATALYST SYSTEM USING THE SAME

PROBLEM TO BE SOLVED: To obtain the subject new compound having a lower sensibility, capable of being easily treated, suitable as an activating component in cocatalyst system and having an improved characteristic when used. SOLUTION: This compound is shown by the formula [X is e.g. NH, NH2 * or NH-A* (A is e.g. a 1-7C alkyl or 1-7C alkylidene); X is e.g. NH, N-A, O or S; R is e.g. H or F or Cl at (n)=0; R is e.g. A allowed to make a covalent bond with Al, or CH2 -CH=CH at Z =H; R and R are each e.g. a bond, R , or Si(A)3 ; Z is a bond or H bond with H; Z is a bond or H bound with R or R ; (n), (m), (p) and (l) are each 0 or 1; and (q) is 1 or 2]. The compound, obtained through the process of preparing an organometallic compound, is used as a component in a coordination catalyst system or in Ziegler/Natta catalyst and is stable against oxygen esp. air and a moisture component. The corresponding coordination catalyst system is highly stable under any reaction condition.