Compositions – Vaporization – or expansion – refrigeration or heat or energy... – With lubricants – or warning – stabilizing or anti-corrosion...
Reexamination Certificate
2005-11-08
2005-11-08
Hardee, John R. (Department: 1751)
Compositions
Vaporization, or expansion, refrigeration or heat or energy...
With lubricants, or warning, stabilizing or anti-corrosion...
C508S244000
Reexamination Certificate
active
06962665
ABSTRACT:
The present invention provides compositions that are useful for compatabilizing a conventional, non-polar, compression refrigeration lubricant and a hydrofluorocarbon and/or hydrochlorofluorocarbon refrigerant in a compression refrigeration apparatus. Additionally, these composition promote efficeint return of lubricant from the non-compressor zones to the compressor zones of the aforesaid refrigeration apparatus.
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E. I. du Pont de Nemours and Company
Edwards Mark A.
Hardee John R.
Sebree Chyrrea J.
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