Catalysts and methods for polymer synthesis
US9951096B2 · kind B2 · utility
3Cited by
44References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2016 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Aug 30, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention provides unimolecular metal complexes having increased activity in the copolymerization of carbon dioxide and epoxides. Also provided are methods of using such metal complexes in the synthesis of polymers. According to one aspect, the present invention provides metal complexes comprising an activating species with co-catalytic activity tethered to a multidentate ligand that is coordinated to the active metal center of the complex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.