Abstract:
Manual transmission fluids having excellent static and dynamic frictional characteristics comprising: (a) an alkaline earth metal salt selected from the group consisting of sulfinates, phenates, oxylates, carboxylates and mixtures thereof; (b) a friction modifier selected from the group consisting of fatty phosphates, borated fatty epoxides, borated glycerol monocarboxylates, borated alkoxylates fatty amines and mixtures thereof; (c) sulfurized olefin; and (d) a synthetic lubricant.
Abstract:
A number of functional characteristics of a gear lubricant are improved by including within the lubricant an additive package comprised of (a) a treated zinc dithiophosphate and (b) an overbased carboxylate which is preferably borated. The additive preferably includes (c) an alkylamine, (d) a sulfurized olefin and (e) a polymeric foam inhibitor. The components of the package provide an interdependent synergistic improvement of numerous performance characteristics of the gear lubricant such as reducing copper strip corrosion, increasing thermal stability and reducing the amount of rust, and odor. The limited slip or anti-chatter performance of the oil is also improved.
Abstract:
This invention relates to a composition, comprising: (A) an acylated amine having a base number in the range of about 45 to about 90, said acylated amine being the product made by contacting (A)(I) at least one carboxylic acid acylating agent with (A)(II) at least one polyamine, said polyamine (A)(II) being selected from the group consisting of (A)(II)(a) a product made by contacting at least one hydroxy material with at least one amine, (A)(II)(b) an alkylene polyamine bottoms product, and (A)(II)(c) a product made by contacting a hydroxy material with an alkylene polyamine bottoms product; (B) a boron compound; and (C) an organic phosphorus acid or ester, or derivative of said phosphorus acid or ester. In one embodiment, this composition further comprises (D) a thiocarbamate. In one embodiment, this composition further comprises (E) a nitrogen-containing ester of a carboxy-containing interpolymer. These compositions are useful as additives for lubricants and functional fluids, and are particularly useful as additives for automatic transmission fluids for enhancing the torque characteristics such automatic transmission fluids.
Abstract:
This invention relates to a composition, comprising: (A) an acylated amine having a base number in the range of about 45 to about 90, said acylated amine being the product made by contacting (A)(I) at least one carboxylic acid acylating agent with (A)(II) at least one polyamine, said polyamine (A)(II) being selected from the group consisting of (A)(II)(a) a product made by contacting at least one hydroxy material with at least one amine, (A)(II)(b) an alkylene polyamine bottoms product, and (A)(II)(c) a product made by contacting a hydroxy material with an alkylene polyamine bottoms product; (B) a boron compound; and (C) an organic phosphorus acid or ester, or derivative of said phosphorus acid or ester. In one embodiment, this composition further comprises (D) a thiocarbamate. In one embodiment, this composition further comprises (E) a nitrogen-containing ester of a carboxy-containing interpolymer. These compositions are useful as additives for lubricants and functional fluids, and are particularly useful as additives for automatic transmission fluids for enhancing the torque characteristics such automatic transmission fluids.
Abstract:
This invention relates to a composition comprising a major amount of an oil of lubricating viscosity, and (A) an organic ammonium thiosulfate. The lubricating composition is either free of added lead containing compounds or additionally contains (B) a phosphorus or boron antiwear/extreme pressure agent, or both. The invention also includes greases and aqueous fluids containing organic ammonium thiosulfates. These compositions have improved antiwear, antiweld, extreme pressure and/or friction properties.