Method for preparing 1,1,1,3,3-pentafluoropropane
US6730817B1 · kind B1 · utility
7Cited by
3References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1998 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Jun 8, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
1,1,1,3,3-Pentafluoropropane is produced by reaction between 1,1,1,3,3-pentachloropropane and hydrogen fluoride in the presence of a hydrofluorination catalyst. The 1,1,1,3,3-pentachloropropane may advantageously be obtained by reaction between vinyl chloride and tetrachloromethane in the presence of a telomerization catalyst and of a nitrile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.