Environmentally friendly viscosity index improving compositions

Details Environmentally friendly viscosity index improving compositions Environmentally friendly viscosity index improving compositions

C - Chemistry, Metallurgy

10

M

C10M 129/74 (2006.01) C09K 15/08 (2006.01) C09K 15/18 (2006.01) C10M 133/06 (2006.01) C10M 133/12 (2006.01) C10M 137/02 (2006.01) C10M 145/10 (2006.01) C10M 149/22 (2006.01) C10M 169/04 (2006.01)

Patent

CA 2111776

A lubricant composition having improved viscosity index characteristics is described that comprises (A) at least one vegetable or synthetic triglyceride oil of the formula (see above formula) wherein R1, R2 and R3 are aliphatic hydrocarbyl groups having at least 60 percent monounsaturated character and containing from about 6 to about 24 carbon atoms and (B) at least one mixed ester of a carboxy-containing interpolymer. Optionally, the composition may also contain (C) a synthetic ester base oil, and (D) an antioxidant.

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