申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0246683A2
公开(公告)日:1987-11-25
Process for the preparation of polymers, characterized in that a mixture of carbon monoxide and one or more olefinically unsaturated organic compounds is polymerized by using a catalyst composition based upon
a) a palladium compound,
b) a bidentate ligand of the general formula R¹R²-M-R-M-R³R⁴ wherein M represents phosphorus, arsenic or antimony, R¹, R², R³ and R⁴ represent hydrocarbyl groups which may or may not be substituted with polar groups and R represents a bivalent organic bridging group containing at least two carbon atoms in the bridge, and
c) a halide of tin or germanium, on the understanding that the presence of this halide is not compulsory when the composition contains a palladium halide.
制备聚合物的工艺,其特征在于一氧化碳和一种或多种烯烃不饱和有机化合物的混合物通过使用基于以下成分的催化剂组合物进行聚合反应
a) 钯化合物
b) 通式为 R¹R²-M-R-M-R³R⁴ 的双齿配体,其中 M 代表磷、砷或锑,R¹、R²、R³ 和 R⁴ 代表可能被或不被极性基团取代的烃基,R 代表在桥中至少含有两个碳原子的二价有机桥基,以及
c) 锡或锗的卤化物,但在组合物中含有钯卤化物时,这种卤化物的存在不是强制性 的。