| 摘要 |
PURPOSE:To obtain the subject novel detergent having the same proper dissolving power as R 113, not exerting bad influence on combined parts comprising metal, plastic and elastomer. CONSTITUTION:The aimed detergent containing preferably 10-40wt.% (especially 20-30wt.%) 3C chlorinated fluorinated hydrocarbon (preferable example, 1,1- dichloro-2,2,3,3,3-pentafluoropropane, 1,1,3-trichloro-2,2,2,2-tetrafluoropropane, 1-chloro-1,2,2,3,3-pentafluoropropane, 1,3-dichloro-2,2,3,3-tetrafluoropropane, 1,1- dichloro-1,1,2-trifluoropropane, 1,3-dichloro-2,2-difluoropropane or 1-chloro-2,2- difluoropropane) as an active ingredient. |
