Azeotrope-like compositions of methanol, nitromethane and trichlorotrifluoroethane
US3960746A · kind A · utility
26Cited by
4References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 25, 1974 |
| Grant date | Jun 1, 1976 |
| Priority date | — |
| Expiry date | Jul 25, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D7/5081
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Azeotrope-like compositions comprising from 5.0 to 6.3 weight percent of methanol, from 0.05 to 0.6 weight percent of nitromethane and from 93.1 to 94.95 weight percent of 1,1,2-trichloro-1,2,2-trifluoroethane, the compositions being useful for cleaning printed circuit boards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.