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US 5,696,060 AGranted
Acylated nitrogen compounds useful as additives for lubricating oil and fuel compositions
AssigneeThe Lubrizol Corporation
InventorsMark R. Baker, Jeffry G. Dietz, Paul E. Adams
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Abstract
A process for reacting certain carboxylic reactants with olefinic compounds then reacting the product prepared thereby with ammonia, a hydrazine or an amine, products prepared thereby and, additive concentrates, lubricating oil and fuel compositions.
Claims60
A process comprising first reacting, optionally in the presence of an acidic catalyst selected from the group consisting of organic sulfonic acids, heteropolyacids, Lewis acids, and mineral acids,
- (A) at least one olefinic compound containing at least one group of the formula ##STR14## and (B) at least one carboxylic reactant selected from the group consisting of compounds of the formula
- R.sup.3 C(O)(R.sup.4).sub.n C(O)OR.sup.5 (IV)
- and compounds of the formula ##STR15## wherein each of R.sup.3, R.sup.5 and R.sup.9 is independently H or a hydrocarbyl group, R.sup.4 is a divalent hydrocarbylene group, and n is 0 or 1;
- wherein (A) and (B) are reacted in amounts ranging from more than 1.5 moles (B) per mole of (A) up to about 3 moles (B) per equivalent of (A);
- then reacting the product formed thereby with from about 0.5 equivalents up to about 2 moles, per mole of (B) of at least one of
- (C) ammonia or a hydrazine or an amine characterized by the presence within its structure of at least one H--N group.
3 more elements
Dependencies are inferred from the claim text.