Oil compositions containing functionalised polymers

Details Oil compositions containing functionalised polymers Oil compositions containing functionalised polymers

C - Chemistry, Metallurgy

10

M

C10M 145/02 (2006.01) C08F 8/04 (2006.01) C10L 1/196 (2006.01) C10L 1/236 (2006.01) C10M 143/12 (2006.01)

Patent

CA 2060124

T 4101 A B S T R A C T OIL COMPOSITIONS CONTAINING FUNCTIONALISED POLYMERS The invention provides an oil composition comprising a major amount of an oil and, as viscosity index improver, a minor amount of a selectively hydrogenated, carboxyl functionalised block copolymer which, prior to hydrogenation, consists of a monoalkenyl aromatic hydrocarbon polymer block and a conjugated diolefin polymer block, said block copolymer being carboxyl functionalised in the monoalkenyl aromatic hydrocarbon polymer block thereof.

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