Compositions – Compositions containing a single chemical reactant or plural... – Organic reactant
Patent
1990-08-17
1991-12-17
Lieberman, Paul
Compositions
Compositions containing a single chemical reactant or plural...
Organic reactant
134 12, 134 31, 134 38, 134 39, 134 40, 252153, 252170, 252171, 252172, 252364, 252DIG9, C11D 730, C11D 750, C23G 5028, B08B 300
Patent
active
050732889
ABSTRACT:
Mixtures of the compound 1,1,1,2,2,3,5,5,5-nonafluoro-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. Binary mixtures of 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane with about 5 to 13 weight percent methanol, with about 3 to 11 weight percent ethanol, with about 4 to 12 weight percent isopropanol, with about 52 to 60 weight percent trans-1,2-dichloroethylene, with about 47 to 55 weight percent dichloromethane, with about 1 to 9 weight percent trichloroethane, with about 0.1 to 7 weight percent acetonitrile, and with about 0.1 to 5 weight percent nitromethane, and ternary mixtures of from about 75 to 83 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane, about 8 to 16 weight percent acetone, and from about 5 to 13 weight percent ethanol, are disclosed as azeotrope or azeotrope-like compositions and are particularly suited for use where solvent recovery and reuse is practiced.
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E. I. Du Pont de Nemours and Company
Lieberman Paul
Skaling Linda D.
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