Lubricating oil compositions containing an acyclic polymer of cyclopentene
AssigneeShell Oil Company
InventorsFrederik L. Binsbergen, Dick J. Van Namen
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Abstract
The viscosity index and pour point of oil compositions are improved by the addition of certain low molecular weight, substantially acyclic polymers of cyclopentene.
Claims3
An oil composition comprising a lubricating oil and from 0.025 to 10%w of substantially linear polymer selected from the group consisting of an acyclic polymer of cyclopentene, acyclic polymers of cyclopentene which have been partially hydrogenated to remove less than 70% of the initial unsaturation of the acyclic polymer, and mixtures thereof, said linear polymer having a molcular weight of between 1.0 .times. 10.sup.4 and 3.0 .times. 10.sup.5.
Dependencies are inferred from the claim text.