Succinimide-acid compounds and derivatives thereof
AssigneeEthyl Corporation
InventorJohn T. Loper
Life of this patent
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Abstract
Succinimide-acid compounds prepared by reaction of hydrocarbyl-substituted succinic acylating agents with alpha-omega amino acids are disclosed, as well as derivatives thereof useful as lubricity additives, lubricant dispersants, friction modifiers, liquid hydrocarbonaceous fuel detergents, antioxidants and alkali and/or alkaline-earth metal detergents.
Claims82
A succinimide-acid derivative prepared by reacting a succinimide-acid compound comprising the reaction product of a hydrocarbyl-substituted succinic acylating agent and an amino acid represented by the formula:
- wherein R is an alkyl group, having from 1 to 12 carbon atoms or an aryl group and a compound comprising at least one primary or secondary amine capable of reacting with said succinimide-acid.
A lubricant composition comprising an oil of lubricating viscosity and from about 0.1 to 10 wt. %, based on the total weight of the lubricant composition, of a succinimide-acid derivative, wherein said derivative is prepared by reacting a succinimide-acid comprising the reaction product of a hydrocarbyl-substituted succinic acylating agent and an amino acid represented by the formula:
- wherein R is an alkyl group, having from 1 to 12 carbon atoms or an aryl group with at least one member selected from the group consisting of polyhydroxy compounds, compounds comprising at least one primary or secondary amine capable of reacting with said succinimide-acid, and mixtures thereof.
A fuel composition comprising a hydrocarbonaceous fuel and from about 0.1 to 10 wt. %, based on the total weight of the fuel composition, of a succinimide-acid derivative, wherein said derivative is prepared by reacting a succinimide-acid comprising the reaction product of a hydrocarbyl-substituted succinic acylating agent and an amino acid represented by the formula:
- wherein R is an alkyl group, having from 1 to 12 carbon atoms or an aryl group with at least one member selected from the group consisting of polyhydroxy compounds, compounds comprising at least one primary or secondary amine capable of reacting with said succinimide-acid, and mixtures thereof.
Dependencies are inferred from the claim text.