Preparation of olefin/CO copolymer with controlled addition of catalyst composition
US4882417A · kind A · utility
6Cited by
1References
4Claims
0Family size
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Inventor
Key dates
| Filing date | Feb 9, 1989 |
| Grant date | Nov 21, 1989 |
| Priority date | — |
| Expiry date | Feb 9, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G67/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An improved process for the production of polyketone polymers in the presence of a catalyst composition formed from a palladium compound, the anion of certain strong acids and certain bidentate ligands comprises the provision of a controlled proportion of the catalyst composition at the outset of polymerization and providing the remainder of the catalyst composition only when the polymer concentration in the product-containing suspension has reached a minimum value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.