Catalytic process for polymerising cyclic carbonates issued from renewable resources
US8415448B2 · kind B2 · utility
1Cited by
0References
14Claims
0Family size
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Key dates
| Filing date | Jul 3, 2009 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Jul 3, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G64/305
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to the polymerisation of five-, six- or seven-membered cyclic carbonates by ring-opening polymerisation in the presence of a system comprising a metal salt such as triflate, triflimidate, acetylacetonate or carboxylate and an alcohol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.