Abstract: Lubricant compositions based on a biodegradable base oil, such as a polyol ester or polyalkylene glycol, a calcium sulfonate based thickener and a naturally occurring phospholipid as an anti-wear additive, such as lecithin for environmentally sensitive applications and when having a specific gravity greater than 1.0 at 60° F. (15.6° C.) for marine applications are provided. The thickener may include a linear alkybenzene sulfonic acid, acetic acid and 12 hydroxystearic acid and a calcium carbonate solid film lubricant. The lubricant submerges when dispensed on water avoiding formations of a surface sheen and biodegrades when submerged resulting in a water ecology friendly lubricant.

Abstract: Antioxidants for industrial, automotive, and aviation lubricants and methods of making the same are provided. A process using alkylated diphenylamines; alkylated phenyl-?-naphthyl amines; and a metal catalyst to form oxidates is provided. The metal catalyst is a combination of a cation and an organic anion, for example, a metal acetylacetone. The reaction takes place in the presence of oxygen to form an antioxidant comprising oligomers of the alkylated diphenylamine and the alkylated phenyl-?-naphthyl amine, and a metal component of the catalyst.

Abstract: Provided are compounds of formula wherein R1 is linear or branched alkyl; AR is phenyl, naphthyl, or phenanthryl; and m is 0, 1, or 2; and R2 is an alkyl substituted carboxyl. Lubricating oils comprising a polyol ester lubricant in combination with one or more compounds of Formula I are also provided. Compounds having structures of Formula I are formed by mixing N-4-alkylphenyl-1-naphthylamine, paraformaldehyde, glacial acetic acid, and a polyol ester base lubricant and heating and stirring the mixture to cause a condensation reaction. Water and acetic acid are subsequently removed, thereby providing the compound of formula I in the polyol ester base lubricant.