Novel catalyst compositions based upon:
a) a Group VIII metal,
b) an anion of an acid with a pKa of less than 6,
c) a phosphorus bidentate ligand with the general formula (R¹)(R²)P-R-P(R¹)(R²) in which R¹ and R² represent identical or different optionally polar substituted hydrocarbyl groups and in which R is a divalent organic bridging group which in the bridge connecting the two phosphorus atoms with each other contains at least two carbon atoms, and
d) an amine.
They are especially suitable to prepare polymers of carbon monoxide and C₃₊ α-olefins having a low proportion of furandiyl groups.
                            基于以下技术的新型催化剂组合物:
a) 第 VIII 族
金属
b) pKa 小于 6 的酸阴离子、
c) 
磷双齿
配体,通式为 (R¹)(R²)P-R-P(R¹)(R²),其中 R¹ 和 R² 代表相同或不同的任选极性取代的烃基,R 为二价有机桥基,在连接两个
磷原子的桥中至少含有两个碳原子,以及
d) 
氨基。
它们特别适用于制备
一氧化碳和 C₃₊ α-烯烃的聚合物,其中
呋喃二基的比例较低。