IMPROVED PRODUCTION OF COPOLYMER USING CARBON MONOXIDE AND AT LEAST ONE COMPOUND CONTAINING ALKENYL UNSATURATION AS BASE

Title:

IMPROVED PRODUCTION OF COPOLYMER USING CARBON MONOXIDE AND AT LEAST ONE COMPOUND CONTAINING ALKENYL UNSATURATION AS BASE

Document Type and Number:

Japanese Patent JPH09183840

Kind Code:

A

Abstract:

To suppress the palladium content and produce an alternating linear copolymer having a good molecular weight in high yield.

Carbon monoxide is reacted with one or more compounds containing an alkenyl unsaturation in the presence of (i) a catalyst having formula I [Pd(chel)(chel')]++[A-]2 (chel and chel' denote each a nitrided or phosphided bidentate chelating agent; A- denotes a substantially noncoordinating anion which is neither unstable nor capable of forming an ester and is derived from an acid having <2 pKa) (ii) a cocatalyst of formula II [chel"H+][A'-] (A'- is same as or different from A-; chel" is same as or different from chel' and denotes a nitrided bidentate chelating agent) under operating conditions containing a dehydrated compound or without containing the compound in a liquid solvent.

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Inventors:

SOMMAZZI ANNA (IT)
GARBASSI FABIO (IT)
MESTRONI GIOVANNI (IT)
MILANI BARBARA (IT)
VICENTINI LIDIA (IT)

Application Number:

JP30673496A

Publication Date:

July 15, 1997

Filing Date:

November 18, 1996

Export Citation:

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Assignee:

ENICHEM SPA (IT)

International Classes:

C08G67/00; C08G67/02; (IPC1-7): C08G67/02

Attorney, Agent or Firm:

Kazuo Sato (2 outside)

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