Process for producing polycarbonates and a coordination complex used therefor
US8163867B2 · kind B2 · utility
39Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2008 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Apr 30, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G64/34
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The complex of the present invention containing an onium salt and a central Lewis acidic metal has a high catalytic activity at a high temperature for the copolymerization of an epoxide and carbon dioxide to produce a high molecular weight poly-carbonate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.