Polymerization of co/olefin with halo monocarboxylic acid and non hydrogen halide acid
US4914184A · kind A · utility
4Cited by
1References
7Claims
0Family size
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Key dates
| Filing date | Apr 27, 1989 |
| Grant date | Apr 3, 1990 |
| Priority date | — |
| Expiry date | Apr 27, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/824
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In the process of producing linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon in the presence of a catalyst composition formed from a palladium compound, a bidentate ligand of phosphorus and a non-hydrohalogenic acid having a pKa below 2, lessened reactor fouling is encountered when the amount of acid initially provided is limited with additional acid being provided when polymerization has reached a certain minimum level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.