Compositions – Vaporization – or expansion – refrigeration or heat or energy...
Reexamination Certificate
2009-02-10
2011-12-06
Cano, Milton I (Department: 1726)
Compositions
Vaporization, or expansion, refrigeration or heat or energy...
C510S408000, C216S083000, C438S689000
Reexamination Certificate
active
08070975
ABSTRACT:
Provided are azeotropic and azeotrope-like compositions of 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) and hydrogen fluoride (HF). Such azeotropic and azeotrope-like compositions are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf).
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Merkel Daniel C.
Pham Hang T.
Pokrovski Konstantin A.
Singh Rajiv R.
Tung HsuehSung
Bradford Bruce
Cano Milton I
Greso Aaron
Honeywell International , Inc.
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