Cold cleaning process
US5514221A · kind A · utility
8Cited by
9References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 26, 1995 |
| Grant date | May 7, 1996 |
| Priority date | — |
| Expiry date | Jan 26, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D7/28
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Evaporative cold cleaning of objects wherein the object is contacted in an open environment with a nonazeotropic solvent blend containing an HCFC, HFC or PFC component having no flash point (such as 141b), a higher boiling nonflammable chlorinated solvent (such as perchloroethylene), and a moderately flammable, intermediate boiling, oxygenated organic solvent (such as n-butanol).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.