Mobil Oil Corporation

Other

William F Olszewski

Andrew G Horodysky

Liehpao O Farng

Harry J Andress

Henry H Ashjian

Shi-Ming Wu

Robert E Ernhoffer

Raymond J Bergstra

Douglas E Johnson

Andreas Logothetis

Lubricant and fuel compositions containing a small additive concentration of a novel organo-phosphorus composition based on phosphite-derived hydroxyl compounds and amine phosphates possess excellent antiwear properties coupled with good extreme pressure activities. Additional antioxidation, cleanliness, antifatigue, high temperature stabilizing, and friction modifying properties are expected. Both the phosphite-hydroxy moiety and the amine phosphate moiety are believed to provide the basis for the synergistic antiwear and EP property of these novel additives.

Load-carrying additives based on organo-phosphites and amine phosphates

Reaction products of hydrocarbylsuccinic anhydrides, polyamines and triazoles, as exemplified by XRT 2143A, have been found to be effective rust/corrosion inhibiting, thermal stabilizing and superior dispersant additives with excellent cleanliness feature for fuels and lubricants. Enhanced antioxidancy is also observed upon boration of these reaction products.

Antirust/dispersant additive for lubricants

Amine coupled condensation products of hindered phenols and phosphites have been found to be effective antioxidant/antiwear additives for lubricants.

Amine-coupled hindered phenols and phosphites as multifunctional

Alkoxy borates of alkylated phenols have been found to be effective cleanliness agents for lubricants and additives for improving the dropping point of greases.

Complex alkoxy borates of alkylated phenols as lubricant stabilizers

Mixed alcohol/dimercaptothiadiazole-derived hydroxy borates have been found to be effective antiwear/antioxidant multifunctional additives for lubricants.

Mixed alcohol/dimercaptothiadiazole-derived hydroxy borates as

Reaction products of sulfur, olefins and sodium sulfide hydrates are improved extreme-pressure/antiwear additives for lubricants and liquid hydrocarbyl fuels.

Sulfurized olefin extreme pressure/antiwear additives and compositions

Mixed phenol/dimercaptothiadiazole-derived hydroxythioether borates have been found to be effective antiwear/antioxidant multifunctional additives for lubricants.

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Cherry Hill, NJ, United States of America

William F Olszewski