1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone...

Details 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone... 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone...

2006-08-22

2006-08-22

Hardee, John R. (Department: 1751)

Compositions

Vaporization, or expansion, refrigeration or heat or energy...

With lubricants, or warning, stabilizing or anti-corrosion...

C252S067000, C521S050000, C524S463000

Reexamination Certificate

active

07094356

ABSTRACT:
The present invention relates to compositions for use in refrigeration and air conditioning systems comprising 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone and at least one chlorocarbon, alcohol, ketone, ether, ester, N-(difluoromethyl)-N,N-dimethylamine, 1,1,1,2,2-pentafluoro-2-[(pentafluoroethyl)thio]ethane or mixtures thereof, and which are also useful in systems employing a centrifugal compressor The compositions of the present invention may be azeotropic or near azeotropic and are useful in processes for producing refrigeration or heat or as heat transfer fluids.

REFERENCES:
patent: 5250208 (1993-10-01), Merchant et al.
patent: 5759986 (1998-06-01), Merchant et al.
patent: 5814595 (1998-09-01), Flynn et al.
patent: 5827812 (1998-10-01), Flynn et al.
patent: 6423673 (2002-07-01), Owens et al.
patent: 2005/0166607 (2005-08-01), Brasz et al.
patent: WO 00/24814 (2000-05-01), None

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