MODIFIZIERTE BERNSTEINSÄUREIMIDE MIT HOHEM MOLEKULARGEWICHT

Alkenyl or alkyl succinimide additives which are the reaction product of a high molecular weight alkenyl- or alkyl-substituted succinic anhydride and a polyalkylene polyamine having an average of greater than 4 nitrogen atoms per mole, wherein the reaction product is post-treated with a cyclic carbo...

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Hauptverfasser: HARRISON, JAMES, J., NOVATO, CA 94947, US, RUHE, WILLIAM, R., JR., BENICIA, CA 94510, US
Format: Patent
Sprache:ger
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Zusammenfassung:Alkenyl or alkyl succinimide additives which are the reaction product of a high molecular weight alkenyl- or alkyl-substituted succinic anhydride and a polyalkylene polyamine having an average of greater than 4 nitrogen atoms per mole, wherein the reaction product is post-treated with a cyclic carbonate, are compatible with fluorocarbon engine seals and, for concentration levels at which fluorocarbon seal compatibility is achieved, possess improved dispersancy and/or detergency properties when employed in lubricating oils and fuels.