Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2008-07-29
2008-07-29
Parsa, Jafar (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C549S521000
Reexamination Certificate
active
11702412
ABSTRACT:
The present invention relates to a method for preparing hexafluoropropylene oxide with high yield, and particularly to a method for preparing hexafluoropropylene oxide comprising the step of performing a two-phase interfacial reaction between an organic phase containing hexafluoropropylene and an aqueous phase containing a hypochlorite oxidant in the presence of a phase-transfer catalyst and a non-ionic surfactant to improve the degree of emulsification and dispersion of the organic phase and to increase the contact interfacial area, thereby increasing the efficiency and the yield of the reaction.
REFERENCES:
patent: 4925961 (1990-05-01), Ikeda et al.
patent: 58131976 (1983-08-01), None
Chang Bong-Jun
Ha Jong-Wook
Kim Dong-Kwon
Kim Jae-won
Kim Jeong-Hoon
Frommer & Lawrence & Haug LLP
Korea Research Institute of Chemical Technology
Parsa Jafar
Santucci Ronald R.
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