Infineum International Limited

Laura A Kahsar

Keith R Gorda

HahnSoo Kim

Raymond F Watts

Joe R Noles, Jr

Kerry L Cogen

Hahn Soo Kim

Maria C Chiappelli

Matthew Cunningham

A transmission fluid composition contains a major amount of a lubricating oil basestock, and a minor amount of an additive package comprising: (i) a mixture comprising two or more phosphites and/or phosphates; (ii) one or more thioester compounds; (iii) a detergent comprising calcium salicylate; and (iv) a poly(alkylene amine)-based ashless dispersant endcapped with metallocene-catalyzed PAO arms. Such a transmission fluid may be used for controlling/reducing wear in at least partially electrically-powered transmissions and/or for cooling/insulating electrical/electronic components of at least partially electrically-powered drivetrains.

Transmission fluid compositions for hybrid and electric vehicle applications

A lubricating oil composition comprises a major amount of an oil of lubricating viscosity and a minor amount of an unsymmetrical bis-succinimide, or a mixture of unsymmetrical bis-succinimides, of the structure (I): wherein one of Rand Ris a polyisobutylene group having a weight average molecular weight of 400 to 5,000, as determined by GPC with reference to linear polystyrene standards, and the other of Rand Ris a hydrocarbon group made by the metallocene-catalysed polymerisation of an &#x3b1;-olefin feedstock; and x is from 1 to 10 and is the same for all molecules of structure (I), or an average of all molecules of structure (I) in a mixture of molecules of structure (I).

Dispersants for lubricating oil compositions

An automatic transmission fluid comprises a major amount of an oil of lubricating viscosity and minor amounts of (a) one or more oil-soluble or dispersible molybdenum-containing compounds, and (b) a reaction product of an isomerized alkenyl-substituted succinic anhydride and a polyamine characterized by structure (II):  In structure (II) x and y are independently zero or integers from 1 to 30, where x+y is from 1 to 30, and z is zero or an integer from 1 to 10.

Automotive transmission fluid compositions for improved energy efficiency

Growing community of inventors

Rahway, NJ, United States of America

Laura A Kahsar