Petroleum additive having excellent storage stability and heat stability comprising an alkaline earth metal salt of aromatic hydroxycarboxylic acid or a sulfurized mixture thereof
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United States of America Patent
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Apr 20, 1999
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N/A
app pub date -
Dec 6, 1996
filing date -
Dec 8, 1995
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Expired
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Abstract
A petroleum additive having excellent storage stability and heat stability, which comprises an alkaline earth metal salt of aromatic hydroxycarboxylic acid containing a higher aliphatic carboxylic acid, a higher aliphatic amine or a higher aliphatic amide, or a sulfurized mixture thereof. A process for improving storage stability, heat stability and viscosity character of the petroleum additive.
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