Copolymerization of ethylene oxide and carbon dioxide
US10214614B2 · kind B2 · utility
5Cited by
25References
25Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 20, 2015 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Feb 20, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G64/183
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present disclosure is directed, in part, to methods of synthesizing a poly(ethylene carbonate) polymer from the reaction of ethylene oxide (EO) and carbon dioxide (CO2) in the presence of a metal complex. The present disclosure also provides novel metal complexes. In one aspect, the metal complex is of the formula (I), wherein R1, R2, R3, M, X and Ring A are as defined herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.