| 摘要 |
A bromine-containing solvent, which has been used as an alternative solvent to a chlorofluorocarbon solvent or a chlorine-containing solvent, is characterized in that it is likely to degrade compared with a chlorofluorocarbon solvent or a chlorine-containing solvent. In the conventional bromine-containing cleaner compositions, the degradation of the compositions are prevented by using a corrosion-protecting agent or a stabilizing agent (e.g., nitroethane). However, when the cleaner compositions are used as cleaners for print circuit boards, the reduction in insulation resistance or leak failure is often caused. Thus, provided is a non-flammable cleaner composition comprising a mixture of a bromide selected from n-propylbromide, methylenebromide, bromochloromethane, n-butylbromide, isobutylbromide, sec-butylbromide and ter-butylbromide as a stabilizer for a bromine-containing solvent and an alkene- or alkyne-type hydrocarbon having 4 to 10 carbon atoms. |
