Method of cleaning using partially fluorinated alkanes having a tertiary structure as solvent
US5118359A · kind A · utility
12Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1991 |
| Grant date | Jun 2, 1992 |
| Priority date | — |
| Expiry date | Jun 20, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K3/26
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel partially fluorinated alkanes having the Formula: ##STR1## wherein each R is the same or different and is selected from the group consisting of CF.sub.3, CHF.sub.2, CH.sub.2 F, and CH.sub.3 CF.sub.2, and R' is an alkyl or fluoroalkyl group having 1 to 6 carbon atoms with the proviso that when each R is CF.sub.3, R' is not CF.sub.3 (CF.sub.2).sub.2 --, CF.sub.3 CF.sub.2 --, or CF.sub.3 have utility as solvents in a variety of industrial cleaning applications including cold cleaning, dry cleaning, and defluxing of printed circuit boards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.