The Lubrizol Corporation

Edward P Sampler

Gary M Walker

Ewan E Delbridge

Yanshi Zhang

William R S Barton

Stephen J Cook

Christopher L Friend

Mohamed G Fahmy

Mark J McGuiness

Neil L Simpson

Timothy R Smith

Eugene Pashkovski

Paul Simon O'Hora

Reid A Patterson

Kieran Trickett

Deborah Kays

Nicolas I Nouvel

Katherine M Shaw

The invention provides a lubricating composition comprising an oil of lubricating viscosity and synergistic mixture of a functionalized ethylene-&#x3b1;-olefin copolymer, a poly(meth)acrylate block polymer having a substantially oil soluble block and a substantially oil insoluble block. The invention also provides a method of lubricating a mechanical device using such a lubricating composition.

Lubricating composition containing a self-assembling polymethacrylate block copolymer and an ethylene-&#x3b1;-olefin copolymer

The invention provides lubricating composition comprising: an oil of lubricating viscosity, and an oxyalkylated hydrocarbyl phenol, wherein the oxyalkylated hydrocarbyl phenol is substituted with at least one aliphatic hydrocarbyl group of 40 to 96 carbon atoms, and wherein the oxyalkylated hydrocarbyl phenol is substantially free of aromatic hydrocarbyl groups. The invention further relates to a method of lubricating a mechanical device (such as an internal combustion engine) with the lubricating composition. The invention further relates to the use of the oxyalkylated hydrocarbyl phenol in the lubricating composition to a passenger car internal combustion engine at least one of (i) control of fuel economy, (ii) control of corrosion, (iii) cleanliness, and (iv) control of bore wear.

Lubricating composition containing an oxyalkylated hydrocarbyl phenol

A phosphate complex of a borate ester provides wear- and friction-reducing performance to an engine or driveline device. The complex may be a pyroborate-hydrocarbyl-substituted phosphate adduct. Boric acid may be reacted with a diol to form an ester, then reacting said ester with an ammonium salt of phosphoric acid or a hydrocarbyl-substituted phosphoric acid.

Lubricating compositions comprising an anti-wear/friction modifying agent

The invention provides a process to prepare a detergent in the presence of a polyether compound. The invention further provides for a lubricating composition containing the detergent. The invention further relates to the use of the lubricating composition in a mechanical device such as an internal combustion engine.

Lubricating composition containing a detergent

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Leicestershire, United Kingdom

Edward P Sampler