Cleaning or drying compositions based on 43-10mee and on trichloroethylene
US6281184A · kind A · utility
3Cited by
11References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2000 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Apr 21, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23G5/02803
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Compns. based on azeotropic or quasi-azeotropic mixts. of trichloroethylene and 1,1,1,2,3,4,4,5,5,5-decafluoropentane are useful for replacing CFC or HCFC in cleaning and degreasing of surfaces (e.g., defluxing of printed circuits) and drying of surfaces. The ability of these compns. to dry surfaces is improved by addn. of RCONR(CH2)nNHCOR surfactants (R=C14-22 alkyl, n=1-5).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.