Title:
【発明の名称】共重合体の製造方法
Document Type and Number:
Japanese Patent JP2000505494
Kind Code:
A
Abstract:
A process for the preparation of copolymers of carbon monoxide with an olefinically unsaturated compound comprising copolymerizing the monomers in the presence of a catalyst composition based upon (a) a salt of a Group VIII metal, and (b) a cation which is selected from cationic oxidants and cations of the general formulae RnH4-nN+, RmH3-mC+ and RmH3-mO+, wherein n is 0, 1, 2, 3 or 4, m is 2 or 3, and R represents a hydrocarbyl group and/or two or three of R together with the atom carrying a positive charge represent a ring structure, on the understanding that when n is 3, at most two of R together with nitrogen represent a heterocyclic ring structure, and when n is 4, three of R together with nitrogen represent an aromatic heterocyclic ring structure.
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Inventors:
Frank Bertmann
Yutub, Yaine
Yutub, Yaine
Application Number:
JP53062697A
Publication Date:
May 09, 2000
Filing Date:
February 27, 1997
Export Citation:
Assignee:
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BESLOTEN VENNOOTSHAP
International Classes:
C08G67/02; (IPC1-7): C08G67/02
Attorney, Agent or Firm:
Kawahara Kazuho