Compositions – Vaporization – or expansion – refrigeration or heat or energy... – With lubricants – or warning – stabilizing or anti-corrosion...
Reexamination Certificate
2007-04-03
2007-04-03
Hardee, John R. (Department: 1751)
Compositions
Vaporization, or expansion, refrigeration or heat or energy...
With lubricants, or warning, stabilizing or anti-corrosion...
C252S067000
Reexamination Certificate
active
11153168
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 hydrocarbon. 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 hydrocarbon. 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.
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patent: 5562853 (1996-10-01), Minor et al.
patent: 5681984 (1997-10-01), Cavestri
patent: 5713211 (1998-02-01), Sherwood
patent: 5814595 (1998-09-01), Flynn et al.
patent: 6183663 (2001-02-01), Kalley et al.
patent: 2003/0209688 (2003-11-01), Lee et al.
patent: WO96/36688 (1996-11-01), None
patent: WO 96/40834 (1996-12-01), None
International Search Report; Date of Mailing: Oct. 28, 2005.
Written Opinion of the International Searching Authority; Date of Mailing: Oct. 28, 2005.
E.I. du Pont de Nemours and Company
Hamby Jane O.
Hardee John R.
Sebree Chyrrea J.
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