| 摘要 |
PROBLEM TO BE SOLVED: To provide a solvent composition which is effective for removing oils and fats and dust, does not exert influences on a wide range of substrates including acrylic resins and has a moderate dissolving power. SOLUTION: The azeotropic solvent composition comprises 69 mass% of (2,2,2-trifluoroethoxy)-1,1,2,2-tetrafluoroethane and 31 mass% of (perfluorobutoxy)methane. The azeotrope-like solvent composition 55-85 mass% of (2,2,2-trifluoroethoxy)-1,1,2,2-tetrafluoroethane and 15-45 mass% of (perfluorobutoxy)methane. The mixed solvent composition comprises 30-90 mass% of (2,2,2-trifluoroethoxy)-1,1,2,2-tetrafluoroethane and 10-70 mass% of (perfluorobutoxy)methane. COPYRIGHT: (C)2006,JPO&NCIPI
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