Use of ester group-including polymers as antifatigue additives

Details Use of ester group-including polymers as antifatigue additives Use of ester group-including polymers as antifatigue additives

C - Chemistry, Metallurgy

10

M

C10M 145/14 (2006.01) C08F 220/10 (2006.01) C10M 149/10 (2006.01)

Patent

CA 2695835

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.

La présente invention concerne l'utilisation de polymères contenant des groupes esters, avec au moins un segment apolaire P et au moins un segment polaire D, comme additifs antifatigue dans des lubrifiants. Le segment polaire D comprend au minimum 8 motifs répétitifs et la proportion en poids des motifs répétitifs dispersants dans le segment polaire D est au minimum égale à 30 %, ramenée au poids du segment polaire D.

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