Hydrocarbon compositions containing polyolefin graft polymers

C - Chemistry – Metallurgy – 10 – M

Patent

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400/2022, 253/54

C10M 151/02 (2006.01) C10L 1/24 (2006.01) C10M 143/00 (2006.01)

Patent

CA 1271861

ABSTRACT OF THE DISCLOSURE There is provided a polymer comprising an oil-soluble, substantially linear, carbon-carbon backbone polymer bearing units thereon derived from a functional monomer which contains at least one atom of nitrogen, sulfur, or oxygen in a heterocyclic ring structure and a process for preparing the polymer. The polymers are, For example ethylene-propylene copolymers bearing units derived from phenothiazine. The polymers are useful as additives to improve the properties of lubricants.

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