| abstract |
(57) [Summary] [PROBLEMS] To provide an alternative cleaning solvent composition which does not affect the ozone layer at all while maintaining the excellent properties of conventional trichlorotrifluoroethane. [Structure] (A) 1,1,1,3,3-pentafluorobutane as an essential component, in which (B) alkanes, alcohols and other soluble solvents and / or (C) nonionic interfaces It contains an activator. |