Compositions – Vaporization – or expansion – refrigeration or heat or energy...
Reexamination Certificate
2005-05-31
2005-05-31
Kopec, Mark (Department: 1751)
Compositions
Vaporization, or expansion, refrigeration or heat or energy...
C252S068000, C252S069000, C508S110000, C508S111000
Reexamination Certificate
active
06899820
ABSTRACT:
The present invention relates to refrigerant compositions comprising a fluorocarbon, an oxygenated lubricant, a non-oxygenated lubricant, and a compatibilizer. The present invention further relates to methods for replacing a chlorofluorocarbon and/or hydrochlorofluorocarbon and a non-oxygenated lubricant composition with a fluorocarbon and an oxygenated lubricant composition in a compression refrigeration system without flushing residual non-oxygenated lubricant from the system.
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PCT Notification of Transmittal of the International Search Report dated Sep. 17, 2003.
E. I. Du Pont de Nemours and Company
Edwards Mark A.
Elhilo Eisa
Kopec Mark
Sebree Chyrrea J.
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