Antioxidant amines based on n-(4aniliophenyl) amides antioxidant amines based on n-(4-anilinophenyl) amides

A reaction product comprised of a carboxylic acid material bound to a substantially linear polymer, copolymer, or terpolymer, further reacted with an N-aromatic substituted acid amide moiety selected from the group consisting of compounds of the formula:

• wherein
• A and B are independently selected alkylene groups;
• R1 is selected from the group consisting of hydrogen, alkyl, alkylether, or ester;
• R2 is hydrogen if R1 is hydrogen;
• R2 is an alkyl primary amine if R1 is alkyl, alkylether, or ester;
• R3 and R4 are independently selected from the group consisting of hydrogen and alkyl;
• R5 is a sterically hindered phenolic group,
• wherein
• X is CH2, S, NH, or O;
• and
• m, n, n, and p are independently selected integers equal to 0 or 1.

A lubricating oil composition comprising a major portion of lubricating oil and a minor portion of an additive that is an N-aromatic substituted acid amide compound or the reaction product comprised of a carboxylic acid material bound to a substantially linear polymer, copolymer, or terpolymer, further reacted with an N-aromatic substituted acid amide moiety, wherein said N-aromatic substituted acid amide is selected from the group consisting of compounds of the formula:

• wherein
• A and B are independently selected alkylene groups;
• R1 is selected from the group consisting of hydrogen, alkyl, alkylether, or ester;
• R2 is hydrogen if R1 is hydrogen;
• R2 is an alkyl primary amine if R1 is alkyl, alkylether, or ester;
• R3 and R4 are independently selected from the group consisting of hydrogen and alkyl;
• R5 is a sterically hindered phenolic group,
• wherein
• X is CH2, S, NH, or O;
• and
• m, n, and p are independently selected integers equal to 0 or 1.

A composition of matter comprising a solution comprising:

• (i) a reaction product comprised of a carboxylic acid material bound to a substantially linear polymer, copolymer, or terpolymer, further reacted with an N-aromatic substituted acid amide moiety selected from the group consisting of compounds of the formula:
• wherein
• A and B are independently selected alkylene groups;
• R1 is selected from the group consisting or hydrogen, alkyl, alkylether, or ester;
• R2 is hydrogen if R1 is hydrogen;
• R2 is an alkyl primary amine if R1 is alkyl, alkylether, or ester;
• R3 and R4 are independently selected from the group consisting of hydrogen and alkyl;
• R5 is a sterically hindered phenolic group,
• wherein
• X is CH2, S, NH, or O;
• and
• m, n, and p are independently selected integers equal to 0 or 1;
• and
• (ii) an oil solvent.

A composition of matter comprising a solution comprising:

• A) a reaction product comprised of a carboxylic acid material bound to a substantially linear polymer, copolymer, or terpolymer, further reacted with an N-alkyl imidazole;
• B) an oil solvent;
• and
• C) a co-solvent comprising an alkyl, dialkyl, or mixed dialkyl phenol, wherein the alkyl group is selected from the group consisting of alkyls of from 6 to 22 carbon atoms.