Molecular level cleaning of contaminates from parts utilizing an environmentally safe solvent
US5824162A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 1997 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Mar 28, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/22
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a solvent mixture comprising n-propyl bromide, a mixture of terpenes and a mixture of low boiling solvents, and a method for cleaning an article (e.g., an electrical, plastic, and metal parts) in a vapor degreaser using the solvent mixture. The solvent mixture of the present invention is non-flammable, non-corrosive and non-hazardous. In addition, it has a high solvency and a very low ozone depleting potential. Thus, using the solvent mixture of the present invention, oil, grease, rosin flux and other organic material can be readily removed from the article of interest in an environmentally safe manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.