Working fluids comprising fluorinated olefins/fluorinated saturated hydrocarbon blends and polyol esters
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United States of America Patent
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Nov 29, 2016
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Jan 14, 2016
app pub date -
Jul 10, 2015
filing date -
Jul 14, 2014
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Abstract
Working fluids comprising a refrigerant blend comprising a fluorinated alkane and a fluorinated olefin refrigerant, and a polyol ester lubricant composition comprising a mixture of alkylcarboxy esters of mono-pentaerythritol, di-pentaerythritol, tri-pentaerythritol and pentaerythritol oligomers, wherein at least 10 wt % of all polyol esters are esters of pentaerythritol oligomers of 4 or more pentaerythritol monomer groups.
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