1,1,2,2,3,3-hexafluorocyclopentane and use thereof in compositions and processes for cleaning
US5176757A · kind A · utility
7Cited by
15References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 28, 1991 |
| Grant date | Jan 5, 1993 |
| Priority date | — |
| Expiry date | Oct 28, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K3/26
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The compound 1,1,2,2,3,3-hexafluorocyclopentane and mixtures thereof with alcohols, ethers, esters, ketones, nitromethane, and halogenated hydrocarbons are disclosed; as is a process for cleaning a solid surface which comprises treating the surface with said compound or said mixtures. Binary mixtures of 1,1,2,2,3,3-hexafluorocyclopentane either with about 27 to 35 weight percent methanol, or with about 21 to 29 weight percent ethanol are disclosed as azeotrope or azeotrope-like compositions and are particularly suited for use where solvent recovery and reuse is practiced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.