Refrigerator lubricant compositions
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United States of America Patent
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Feb 13, 2007
Grant Date -
Apr 1, 2004
app pub date -
Aug 26, 2003
filing date -
Mar 1, 2001
priority date (Note) -
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Abstract
A lubricant composition for use in a rotary vane compressor has a base oil component that comprises an alkylbenzene as a major component thereof and a polyol ester as a minor component thereof. In particular, the base oil component comprises at least 55% by weight of alkylbenzene and at most 45% by weight of a polyol ester, more preferably between 55% and 75% by weight of alkylbenzene and between 45% and 25% by weight of polyol ester and, especially, between 60% and 75% by weight of alkyl benzene and between 45% and 25% by weight of polyol ester.
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