Catalytic system and process for the copolymerization of olefins with carbon monoxide
AssigneeEnichem S.p.A.
InventorsAnna Somazzi, Gabriele Lugli, Fabio Garbassi
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Abstract
An active catalyst in the preparation of alternating copolymers of olefins with carbon monoxide (CO) and consisting of: a) a metal salt of the group IB of the periodic table; b) a bidentate binder containing two nitrogen or phosphorous atoms capable of binding themselves to the metal atom by means of co-ordination bonds; c) a Lewis acid; d) optionally an oxidizing agent. The preparation of the catalyst is described together with its use in the alternating copolymerization of ethylene (C2) and/or other olefins with carbon monoxide.
Claims20
A process, comprising copolymerizing ethylene and/or other olefinic monomers, alone or mixed with two or more monomers, with carbon monoxide to produce alternating olefin/carbon monoxide copolymers, wherein said copolymerizing is conducted in the presence of a catalytic system consisting of:
- a) a Cu, Ag or Au salt,
- b) a bidentate chelating base containing two phosphorous or nitrogen atoms,
- c) a Lewis acid, and
- d) optionally an oxidizing agent.
Dependencies are inferred from the claim text.