Catalytic process for the preparation of polyketones from carbon monoxide and ethylenically unsaturated hydrocarbon
US4818810A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 2, 1985 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Oct 2, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G67/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the preparation of polyketones is disclosed, the process being the polymerization of a mixture of CO and an alkenically unsaturated hydrocarbon in the presence of a Group-VIII-metal catalyst containing ligands, wherein hydrocarbon groups occur which are bound to an element from Group V a, characterized in that the catalyst used is a complex compound obtained by reaction of a palladium, cobalt or nickel compound, an anion of a carboxylic acid with a pKa lower than 2, and a bidentate ligand of the general formula R.sup.1 R.sup.2 --M--R--M--R.sup.3 R.sup.4, wherein M represents phosphorus, arsenic or antimony, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are similar or dissimilar hydrocarbon groups, R is divalent organic bridging group not causing steric hindrance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.