Catalyst for production of 1,4-polybutadiene and process for selective production of trans- or cis-1,4-polybutadiene
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0433943A2
公开(公告)日:1991-06-26
A catalyst for production of 1,4-polybutadiene which comprises
as the catalyst component (A) a transition metal compound represented by the formula M(R)ℓ(OR')m Xn-(ℓ+m), wherein M denotes a transition metal atom, R and R' each denote a hydrocarbon group of 1-20 carbon atoms, X denotes a halogen atom, and ℓ, m and n denote numerals satisfying the equations ℓ > 0, m > 0 and n-(ℓ+m) > 0, n corresponding to the valence of the transition metal,
as the catalyst component (B) an organoaluminum compound represented by the formula AℓR¹aX'3-a, wherein R¹ denotes a hydrocarbon group of 1-20 carbon atoms, X denotes a halogen atom, and a denotes a numeral satisfying the equation 1 < a < 3, or an aluminoxane obtained by the reaction of said organoaluminum compound with water, and
as the catalyst component (C) an organic compound having at least two hydroxyl groups.
一种生产 1,4-聚丁二烯的催化剂,它包括
作为催化剂组分 (A) 由式 M(R)ℓ(OR')m-Xn-(ℓ+m)表示的过渡金属化合物,其中 M 表示过渡金属原子,R 和 R' 分别表示 1-20 个碳原子的烃基、X 表示卤素原子,ℓ、m 和 n 表示满足公式 ℓ > 0、m > 0 和 n-(ℓ+m) > 0 的数字,n 对应于过渡金属的价、
作为催化剂组分 (B) 由式 AℓR¹aX'3-a 表示的有机铝化合物,其中 R¹ 表示 1-20 个碳原子的烃基,X 表示卤素原子,a 表示满足公式 1 < a < 3 的数字,或由所述有机铝化合物与水反应得到的铝氧烷,以及
作为催化剂组分 (C) 的至少有两个羟基的有机化合物。