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    • 15. 发明授权
    • Compositions of octafluorotrifluoromethylpentane and
nonafluorotrifluoromethylpentane and use thereof for cleaning solid
surfaces
    • 八氟三氟甲基戊烷和九氟三氟甲基戊烷的组合物及其用于清洁固体表面的用途
    • US5076956A
    • 1991-12-31
    • US621335
    • 1990-11-29
    • Douglas R. Anton
    • Douglas R. Anton
    • C11D7/26C11D7/28C11D7/50
    • C11D7/261C11D7/5018C11D7/5081C11D7/5086C11D7/5095C11D7/263C11D7/264C11D7/266C11D7/28
    • Mixtures of the two fluorocarbon compounds 1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and 1,1,1,2,2,5,5,5-octafluoro-4-trifluoromethylpentane with alcohols, ethers, esters, ketones, nitrogen-containing organic compounds, and halogenated hydrocarbons are disclosed; as is a process for cleaning a solid surface which comprises treating the surface with said mixtures. Ternary mixtures of about 88 to 96 weight percent total of said two fluorocarbon compounds with methanol (including at least about 11 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and at least about 13 weight percent 1,1,1,2,2,5,5,5-octafluoro-4-trifluoromethylpentane) and with ethanol (including at least about 28 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-triluoformethylpentane and at least about 16 weight percent 1,1,1,2,2,5,5,5-octafluoro-4-trifluoromethyl-pentane) are disclosed as quasiazeotrope compositions that are useful where recovery and reuse of solvents is practiced.
    • 两种碳氟化合物1,1,2,2,3,5,5,5-九氟-4-三氟甲基戊烷和1,1,1,2,2,5,5,5-八氟-4-三氟甲基戊烷的混合物与 醇,醚,酯,酮,含氮有机化合物和卤代烃; 清洁固体表面的方法也是如此,其中包括用所述混合物处理表面。 所述两种碳氟化合物与甲醇(包括至少约11重量%的1,1,1,2,2,3,5,5,5-九氟-4-三氟甲基戊烷)的总共约88至96重量%的三元混合物, 至少约13重量%的1,1,1,2,2,5,5,5-八氟-4-三氟甲基戊烷)和乙醇(包括至少约28重量%的1,1,1,2,2,3, 5,5,5-九氟-4-三氟甲基戊烷和至少约16重量%的1,1,1,2,2,5,5,5-八氟-4-三氟甲基 - 戊烷)作为可用的升华酸组合物 其中实施溶剂的回收和再利用。