Patent ID: 8455414

Claim:
A macromolecular antioxidant product comprising (a) one or more i) aromatic amines substituted with one 3,5-di-hydrocarbyl-4-hydroxylbenzyl groups; ii) aromatic amines substituted with two 3,5-di-hydrocarbyl-4-hydroxylbenzyl groups; iii) aromatic amines substituted with three 3,5-di-hydrocarbyl-4-hydroxylbenzyl groups; iv) aromatic amines substituted with four 3,5-di-hydrocarbyl-4-hydroxylbenzyl groups; v) aromatic amines substituted with five 3,5-di-hydrocarbyl-4-hydroxylbenzyl groups; or vi) aromatic amines substituted with six 3,5-di-hydrocarbyl-4-hydroxylbenzyl groups; and (b) one or more methylene-bridged aromatic amines substituted with one or more 3,5-di-hydrocarbyl-4-hydroxylbenzyl groups, wherein the macromolecular antioxidant products are liquid at room temperatures or solids that melt at less than about 100° C. and are capable of being dissolved in liquid hydrocarbon solvents, and wherein said macromolecular antioxidant product contains in the range of from about 1 to about 10 wt. % of one or more phenolics represented by the following general formula: wherein each R and R′ are independently H or a hydrocarbyl.