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US 8,507,422 B2Granted
Antiwear polymer and lubricating composition thereof
AssigneeThe Lubrizol Corporation
InventorsDavid Price, Patrick E. Mosier, Jonathan S. Vilardo, Marina Baum
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Abstract
The present invention relates to the use of a RAFT polymer as an antiwear agent in a lubricant. The lubricant may be useful in a number of mechanical devices.
Claims13
A method of controlling wear in a mechanical device, the method comprising supplying to the mechanical device a lubricant comprising (i) a polymer obtained from a reversible addition-fragmentation chain transfer controlled radical polymerisation process, and (ii) an oil of lubricating viscosity, wherein the polymer has random or tapered block architecture, wherein the polymer is a linear or star polymer.
Dependencies are inferred from the claim text.