1-ethoxy-1, 1,2,2,3,3,4,4,4-nonafluorobutane refrigerant...

Details 1-ethoxy-1, 1,2,2,3,3,4,4,4-nonafluorobutane refrigerant... 1-ethoxy-1, 1,2,2,3,3,4,4,4-nonafluorobutane refrigerant...

2007-02-01

2008-09-09

Hardee, John R (Department: 1796)

Compositions

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

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

C252S067000

Reexamination Certificate

active

07422698

ABSTRACT:
The present invention relates to compositions for use in refrigeration and air-conditioning systems comprising 1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane and at least one chlorocarbon, alcohol, ketone, ether, ester, N-(difluoromethyl)-N,N-dimethylamine, or mixtures thereof. Further, the present invention relates to compositions for use in refrigeration and air-conditioning systems employing a centrifugal compressor comprising 1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane and at least one chlorocarbon, alcohol, ketone, ether, ester, N-(difluoromethyl)-N,N-dimethylamine, or mixtures thereof. The compositions of the present invention may be azeotropic or near-azeotropic and are useful in processes for producing cooling or heat or as heat transfer fluids.

REFERENCES:
patent: 5681984 (1997-10-01), Cavestri
patent: 5713211 (1998-02-01), Sherwood
patent: 5814595 (1998-09-01), Flynn et al.
patent: 5827812 (1998-10-01), Flynn et al.
patent: 6185958 (2001-02-01), Wightman
patent: 6288018 (2001-09-01), Flynn et al.
patent: 6699829 (2004-03-01), Doyel et al.
patent: 2003/0209688 (2003-11-01), Lee et al.
patent: WO 96/36688 (1996-11-01), None
patent: WO 96/40834 (1996-12-01), None
International Search Report; Date of Mailing: Jan. 5, 2006.
Written Opinion of the International Searching Authority; Date of Mailing: Jan. 5, 2006.

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