Complex and preparation method of poly(alkylene carbonate) using the same
US9777031B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Jul 4, 2014 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Aug 7, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G64/34
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention is directed to a novel complex synthesized from a Salen-type ligand. The novel complex contains a quaternary ammonium salt. The present invention is also directed to a preparation method of a copolymer of carbon dioxide and epoxide using the complex synthesized from a Salen-type ligand as a catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.