Lubricant
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United States of America Patent
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Dec 28, 1999
Grant Date -
N/A
app pub date -
Jul 16, 1997
filing date -
Nov 14, 1994
priority date (Note) -
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Abstract
An ester based lubricant, particularly suitable for 4-stroke engines comprises at least one ester of a saturated, branched chain monohydric alcohol having at least 8 carbon atoms and a saturated branched chain aliphatic monocarboxylic acid having at least 10 carbon atoms. The esters have a kinematic viscosity of at most 35 cSt (40.degree. C.), a non-polarity index of at least 100, a Noack evaporation loss of at most 10% and a pour point below -30.degree. C.
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