Aluminum trifluoride catalyst for production of diaryl carbonates
US5252771A · kind A · utility
3Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1991 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | May 28, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C68/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the production of a diaryl carbonate useful in the preparation of polycarbonate molding resins comprising contacting an aromatic hydroxy compound and a carbonyl halide or aryl haloformate in the presence of a catalyst comprising aluminum trifluoride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.