| 摘要 |
Process for the preparation of polymers, wherein polymers of carbon monoxide with ethene and/or propene and optionally in addition with one or more other alpha -olefins are prepared by contacting the monomers in the absence of hydrogen with a catalyst containing a Group VIII metal and a phosphorus bidentate ligand in which two di(sec.alkyl)phosphino groups occur, between which a divalent organic bridging group is present and in which the bridge connecting the two phosphorus atoms to each other contains at least two carbon atoms.
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