Ashless additive composition
AssigneesChevron Oronite Company LLC, Chevron Japan Ltd.
InventorsWilliam Raymond Ruhe, Jr., Masami Fuchi, Seyedeh Mahboobeh Hosseini
Life of this patent
Estimating the term…
Abstract
This disclosure describes an ashless lubricant additive. The additive is a tertiary amine-containing compound having the following structure: where each R1 and R5 is independently a linear or branched-chain monovalent hydrocarbyl group having two to about twenty carbon atoms, where each R2, R3, and R4 is independently a hydrogen, a linear or branched-chain monovalent hydrocarbyl group having one to about twenty carbon atoms wherein at least one of R2, R3, and R4 is hydrogen, each m is independently from 0 to 2, each p is independently from 0 to 2, for each cylic moiety m+p is from 2 to 4, and each n is independently from 1 to 6.
Claims15
An ashless additive composition comprising:
- a tertiary amine-containing compound having the following structure:
- wherein each R1 and R5 is independently a linear or branched-chain monovalent hydrocarbyl group having two to about twenty carbon atoms, wherein each R2, R3, and R4 is independently a hydrogen, a linear or branched-chain monovalent hydrocarbyl group having one to about twenty carbon atoms wherein at least one of R2, R3, and R4 is hydrogen, each m is independently from 0 to 4, each p is independently from 0 to 4, for each cyclic moiety m+p is from 2 to 4, and each n is independently from 1 to 6.
A lubricating oil composition comprising:
- a major amount of a base oil;
- and
- an ashless tertiary amine-containing compound having the following structure:
- wherein each R1 and R5 is independently a linear or branched-chain monovalent hydrocarbyl group having two to about twenty carbon atoms, wherein each R2, R3, and R4 is independently a hydrogen, a linear or branched-chain monovalent hydrocarbyl group having one to about twenty carbon atoms wherein at least one of R2, R3, and R4 is hydrogen, each m is from 0 to 4, each p is from 0 to 4, for each cyclic moiety m+p is from 2 to 4, and each n is independently from 1 to 6.
An ashless additive composition comprising diamide product of a reaction comprising:
- a hydrocarbyl-substituted succinic anhydride represented by the following structure:
- wherein R is a linear or branched-chain monovalent hydrocarbyl group having two to about twenty carbon atoms;
- and
- a cyclic polyamine represented by the following structure:
- wherein R is a linear or branched-chain monovalent hydrocarbyl group having two to about twenty carbon atoms, m is from 0 to 4, p is from 0 to 4, m+p is from 2 to 4, and n is from 1 to 6;
- and wherein the hydrocarbyl-substituted succinic anhydride to cyclic polyamine ratio is about 1.5:1 to about 1.6:1.
A method for modifying friction in an engine, the method comprising lubricating said engine with a lubricating oil composition comprising:
- a major amount of base oil of lubricating viscosity;
- and
- an ashless additive composition having the following structure:
- wherein each R1 and R5 is independently a linear or branched-chain monovalent hydrocarbyl group having two to about twenty carbon atoms, wherein each R2, R3, and R4 is independently a hydrogen, a linear or branched-chain monovalent hydrocarbyl group having one to about twenty carbon atoms wherein at least one of R2, R3, and R4 is hydrogen, each m is independently from 0 to 4, each p is independently from 0 to 4, for each cyclic moiety m+p is from 2 to 4, and each n is independently from 1 to 6.
A method of boosting total base number in a lubricating oil, the method comprising blending base oil and an ashless additive composition having the following structure:
- wherein each R1 and R5 is independently a linear or branched-chain monovalent hydrocarbyl group having two to about twenty carbon atoms, wherein each R2, R3, and R4 is independently a hydrogen, a linear or branched-chain monovalent hydrocarbyl group having one to about twenty carbon atoms wherein at least one of R2, R3, and R4 is hydrogen, each m is independently from 0 to 4, each p is independently from 0 to 4, for each cyclic moiety m+p is from 2 to 4, and each n is independently from 1 to 6.
Dependencies are inferred from the claim text.