Fuel compositions containing polyalkylated 1,3,4-thiadiazoles
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United States of America Patent
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Nov 5, 1991
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N/A
app pub date -
May 17, 1990
filing date -
May 17, 1990
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Abstract
A diesel fuel composition comprising a major portion of middle distillates and a minor wear improving amount of a 1,3,4-thiadiazole derived from 2,5-dimercapto-1,3,4-thiadiazole and one or two moles of polyolefin having 50 to 400 carbon atoms. Furthermore, the 5-position of the 2-mercapto-1,3,4-thiadiazole may be substituted by alkylthio, 2-hydroxyalkylthio, amino or hydroxy group. The 1,3,4-thiadiazole compounds are also effective dispersants when incorporated into fuel compositions.
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