| 摘要 |
PURPOSE:To obtain an incombustible Flon substitute consisting of 2,2- dichloro-1,1,1,3,3-pentafluoropropane, etc., and 3,3-dichloro-1,1,1,2,2- pentafluoropropane, etc., and having characteristics equivalent or above, compared with those of conventional Flon gas. CONSTITUTION:The objective composition consisting of (A) 2,2-dichloro-1,1,1,3,3- pentafluoropropane, chloroform, 1,1-dichlorotetrafluoro-1-propene, 1,1,1,2,2,5,5,6,6,6- decafluorohexene, etc., and (B) 3,3-dichloro-1,1,1,2,2-pentafluoropropane and/or 1,3-dichloro-1,1,2,2,3-pentafluoropropane, useful as a Flon substitute, solvent, etc. The ingredient A is preferably used at an amount of 1-1000ppm from the viewpoint of stability to heat, light, etc. The composition can be used likely to conventional Flon gas and can be directly applied without requiring remarkable change of well-known technique. |
