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U.S. Department of Energy
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Deposit control additives and fuel and lube oil compositions containing them

Patent ·
OSTI ID:5681970
Combination deposit and rust control additives for internal combustion engines are provided which maintain cleanliness of intake systems without contributing to combustion chamber deposits and corrosion. The additives are salts of hydrocarbyl oxyacid esters of phosphorus and of hydrocarbylpoly(Oxyalkylene) aminocarbamates comprising a hydrocarbyl-terminated poly(Oxyalkylene) chain of 2-5 carbon oxyalkylene units bonded through an oxycarbonyl group to a nitrogen atom of a polyamine. Lube oil and fuel compositions containing these additive salts are also provided for use in internal combustion engines.
Assignee:
Chevron Research Co
Patent Number(s):
US 4289634
OSTI ID:
5681970
Country of Publication:
United States
Language:
English