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AssigneeEvonik Rohmax Additives GmbH
InventorsTorsten Stoehr, Michael Mueller, Thorsten Bartels, Christoph Wincierz, Klaus Schimossek, Michael Neusius, Dieter Janssen, Miriam-Kathrin Stihulka
Estimating the term…
The present invention relates to the use of ester group-including polymers having at least one nonpolar segment P and at least one polar segment D, where the polar segment D includes at least 8 repeating units, and the proportion of dispersing repeating units in the polar segment D is at least 30% by weight based on the weight of the polar segment D, as antifatigue additive in lubricants.
A method of making a lubricant comprising adding a polymer as an antifatigue additive to a lubricant, said polymer comprising at least one ester group and at least one nonpolar segment P and at least one polar segment D, said polar segment D having at least eight repeat units and the proportion by weight of dispersing repeat units in the polar segment D being at least 30%, based on the weight of the polar segment D.
Dependencies are inferred from the claim text.