Preparation of copolymers
First Claim
1. A process for the preparation of copolymers of carbon monoxide and one or more ethylenically unsaturated compounds by contacting the monomers, under polymerization conditions, with a catalyst system comprising a) a source of cations of one or more metals of Group VIII of the Periodic Table and b) a bidentate ligand, and c) a minor amount of a compound containing at least one metal hydride wherein said metal is selected from the group consisting of tin, germanium, and lead.
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Abstract
A process for the preparation of copolymers of carbon monoxide and one or more ethylenically unsaturated compounds by contacting the monomers, under polymerization conditions, with a catalyst system comprising a) a source of cations of one or more metals of Group VIII of the Periodic Table and b) a bidentate ligand, and c) a minor amount of a compound containing a hydride moiety. Copolymers made by this process generally have low molecular weights.
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13 Claims
- 1. A process for the preparation of copolymers of carbon monoxide and one or more ethylenically unsaturated compounds by contacting the monomers, under polymerization conditions, with a catalyst system comprising a) a source of cations of one or more metals of Group VIII of the Periodic Table and b) a bidentate ligand, and c) a minor amount of a compound containing at least one metal hydride wherein said metal is selected from the group consisting of tin, germanium, and lead.
- 2. A process for the preparation of copolymers of carbon monoxide and one or more ethylenically unsaturated compounds by contacting the monomers, under polymerization conditions, with a catalyst system comprising a) a source of cations of one or more metals of Group VIII of the Periodic Table and b) a bidentate ligand, and c) a minor amount of a compound containing at least one non-metal hydride, wherein said non-metal is silicon.
Specification