Aminated polymeric additives for fuels and lubricants

Details Aminated polymeric additives for fuels and lubricants Aminated polymeric additives for fuels and lubricants

C - Chemistry, Metallurgy

10

L

402/364, 260/606

C10L 1/22 (2006.01) C10M 143/02 (2006.01) C10M 143/18 (2006.01)

Patent

CA 1069936

ABSTRACT OF THE DISCLOSURE Hydrocarbon polymers, preferably copolymers having a degree of crystallinity of up to 25 weight percent, comprising about 2 to 98 mole percent ethylene and one or more C3 to C28 alpha-olefins, are mechanically grafted at elevated temperatures under an inert atmosphere to f?rm an aminated polymer which may thereafter be mechanically-oxidatively degraded at an elevated temperature in the presence of an oxygen-containing gas to form an aminated polymeric reaction product useful as sludge dispersant for fuels and lubricants. When the aminated polymers have A high molecular weight, they are also viscosity-index improvers with dispersant and/or pour point depressant activity.

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