abstract |
A polymer and its lubricating composition capable of providing acceptable / improved shear stability, viscosity index control, and low temperature viscosity. The present invention relates to novel polymers having pendant groups. The present invention further provides a lubricating composition containing the polymer. The present invention further provides a method and application for controlling the viscosity index by supplying a polymer having pendant groups to an oil of lubricating viscosity. In one embodiment, the present invention provides a lubricant composition comprising (a) an oil of lubricating viscosity and (b) a polymer having pendant groups as defined above. In one embodiment, the present invention provides a lubricant or lubricant concentrate obtained (or obtained) by blending a polymer of the present invention with an oil of lubricating viscosity. [Selection figure] None |