Process for the copolymerization of carbon monoxide with an olefinically unsaturated compound
申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0702046A2
公开(公告)日:1996-03-20
A process for the copolymerization of carbon monoxide with an olefinically unsaturated compound comprising contacting the monomers in the presence of a liquid diluent with a catalyst composition which is based on
(a) a source of a Group VIII metal,
(b) a bidentate ligand of the general formula R¹R²M¹-R-M²R³R⁴ wherein M¹ and M² independently represent a phosphorus, arsenic or antimony atom, R¹, R², R³ and R⁴ independently represent unsubstituted or substituted hydrocarbyl groups on the understanding that at least one of R¹, R², R³ and R⁴ represents a polar substituted aryl group and R represents a bivalent bridging group containing at least two carbon atoms in the bridge, and
(c) a boron hydrocarbyl compound,
with application of a stirring power transmitted to the polymerization mixture of at least 0.25 kW/m³.
一种一氧化碳与烯烃不饱和化合物共聚的工艺,包括在有液体稀释剂存在的情况下,使单体与催化剂组合物接触,该催化剂组合物的基础是
(a) 第 VIII 族金属源、
(b) 通式为 R¹R²M¹-R-M²R³R⁴ 的双齿配体,其中 M¹ 和 M² 独立地代表磷、砷或锑原子,R¹、R²、R¹、R²、R³ 和 R⁴ 独立地代表未取代或取代的烃基,但 R¹、R²、R³ 和 R⁴ 中至少有一个代表极性取代的芳基,且 R 代表在桥中至少含有两个碳原子的二价桥基,以及
(c) 硼烃基化合物、
对聚合混合物的搅拌功率至少为 0.25 kW/m³。