Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Reexamination Certificate
2005-10-18
2005-10-18
Price, Elvis O. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
C568S840000, C568S841000
Reexamination Certificate
active
06956140
ABSTRACT:
A process for preparing a halogenated alcohol comprising hydrolyzing a halogenated precursor of the halogenated alcohol in water at a temperature near but below the critical point of water. For example, the halogenated alcohol has the formula CF3(CF2)nCH2OH, wherein n is zero or a whole number from 1 to 5, the halogenated precursor has the formula CF3(CF2)nCH2Cl, wherein n is as defined above, and the process comprises hydrolyzing the halogenated precursor in water at a temperature near but below the critical point of water. In a particularly preferred embodiment, the halogenated alcohol has the formula CF3CH2OH, the halogenated precursor has the formula CF3CH2Cl, and the process comprises hydrolyzing CF3CH2Cl in water at a temperature near but below the critical point of water.
REFERENCES:
patent: 4590310 (1986-05-01), Townsend et al.
Halocarbon Products Corporation
Norris McLaughlin & Marcus PA
Price Elvis O.
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