| 摘要 |
PURPOSE:To provide the subject composition having non-combustibility, etc., capable of reducing the using amounts of conventional chlorofluorocarbon(CFC) having an adhered water-removing effect and suitable as an alternate fleon by comprising at least one of 1-chloro-1,1,2,2,3-pentafluoropropane, etc., and a surfactant. CONSTITUTION:A composition comprises at least one selected from compounds of formulas I, II, III, IV, V, VI, VII, VIII, etc., and a surfactant such as preferably a polyoxyethylenepolyoxypropylene alkyl ether or caprylic acid caprylamine. The mixing amount of the surfactant in the composition is 0.1-5wt.% and the composition has a better adhered water-removing action than those of conventional CFC solvents, is used as a water-removing and drying agent after water washing processes especially for removing water adhered on precise equipments, printed boards, optical lenses, etc., and does not affect composite parts comprising metals, plastics, etc. |
