Composition for improving cold flow properties of middle distillates (OP-3571)
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United States of America Patent
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Mar 3, 1992
Grant Date -
N/A
app pub date -
Jun 28, 1990
filing date -
Jun 28, 1990
priority date (Note) -
Expired
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Importance
Abstract
A wax-containing middle distillate, such as diesel fuel, having improved low temperature flow properties comprises three or more components including (A) an oil-soluble ethylene backbone flow improving polymer such as ethylene vinyl acetate copolymer, (B) a hydrocarbyl substituted amine salt and/or amide of a carboxylic acid or anhydride such as phthalic anhydride salts, and (C) a hydrocarbyl substituted amine salt of a derivative of phosphoric acid such as the dihydrogenated tallow amine salt of dialkyldithiophosphoric acid.
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