Lubricant ester
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United States of America Patent
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-
Sep 18, 2001
Grant Date -
N/A
app pub date -
Mar 25, 1999
filing date -
Jun 24, 1996
priority date (Note) -
Expired
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Abstract
A lubricant ester having enhanced hydrolytic stability is disclosed. The ester is a mono or diester of 2-ethyl-2-butyl-1,3-propanediol or an alkoxylate thereof and at least one carboxylic acid having 5-10 carbon atoms. The invention in a further aspect refers to a refrigeration working fluid comprising said ester and at least one halocarbon refrigerant.
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