Cleaning or drying compositions based on F36mfc, CHzCLz, CH3OH and 43-10mee
US6291416A · kind A · utility
5Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2000 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | Apr 21, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D7/5081
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In order to replace compositions based on CFC or on HCFC in cleaning or drying applications on solid surfaces (in particular defluxing), the invention provides azeotropic or near-azeotropic compositions based on 1,1,1,3,3-pentafluorobutane, on dichloromethane, on methanol and on 1,1,1,2,3,4,4,5,5,5-decafluoropentane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.