Polyoxyalkylene monoethers with reduced water affinity
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United States of America Patent
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Nov 23, 2004
Grant Date -
Feb 6, 2003
app pub date -
Apr 2, 1997
filing date -
Apr 2, 1997
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Abstract
Oleophilic polyoxyalkylene monoethers having reduced water affinity are disclosed. The monoethers have a hydrocarbyl residue, a polyoxyalkylene moiety, and a hydroxyl end group. The monoethers contain less than about 6 mole percent of alkoxylated unsaturates, and preferably less than about 5 mole percent of polyoxyalkylene diols. The monoethers offer substantial advantages for fuel compositions, particularly reduced water affinity. By using deposit-control additives based on the monoethers, formulators can offer better fuels for cleaner engines.
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