Catalytic systems for the ring-opening (co)polymerization of lactones
US8563679B2 · kind B2 · utility
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1References
20Claims
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Assignee
Inventors
Key dates
| Filing date | Apr 29, 2009 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | Nov 2, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/823
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to the use of a system composed of a base and of a sulphonamide, as a catalyst for the ring-opening (co)polymerization of lactones. The present invention also relates to novel sulphonamides and to a process for the ring-opening (co)polymerization of lactones comprising the use of sulphonamides in combination with a base as a catalytic system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.