Process for the copolymerization of carbon monoxide with an olef

Details Process for the copolymerization of carbon monoxide with an olef Process for the copolymerization of carbon monoxide with an olef

1996-03-12

1997-08-19

Acquah, Samuel A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

528220, 528225, 528392, 524709, 524779, 524846, C08K 549

Patent

active

056589824

ABSTRACT:
A process for the copolymerization of carbon monoxide with an olefinically unsaturated in which the monomers are contacted with a catalyst composition which is based on a source of a Group VIII metal and a boron hydrocarbyl compound. Additional boron hydrocarbyl compound is added to the polymerization mixture during the copolymerization or when the catalyst has lost its activity. A process for recycling a polymerization catalyst is also presented. It includes the steps of recovering a Group VIII metal composition from a preceding copolymerization process for the preparation of a copolymer of carbon monoxide and an olefinicaIly unsaturated compound and adding a boron hydrocarbyl compound to the Group VIII metal composition.

REFERENCES:
patent: 5175244 (1992-12-01), Budzelaar et al.
patent: 5434243 (1995-07-01), Mastenbroek et al.
patent: 5440010 (1995-08-01), Cheron et al.

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