C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 169/04 (2006.01) C10M 107/00 (2006.01) C10M 107/28 (2006.01) C10M 111/04 (2006.01) C10M 159/12 (2006.01)
Patent
CA 2156775
A lubricant composition, more particularly an automotive crankcase lubricant formulation containing a polar dispersant, e.g. having amide, imide oramine groups, is rendered compatible with fluorocarbon and nitrile material usedin engine seals by the addition to the base oil of from 2 to 50 % by weight, based on the weight of base oil, of a copolymer of a one or more C10 -C16 .alpha.- olefins and one or more dicarboxylic acid esters of C3 to C8 monoalkyl alcohols, the copolymer having a weight average molecular weight (Mw) from 500 to 3,000 and a kinematic viscosity from 3 to 100 cSt (mm/s) at 100°C.
Holt David Gary Lawton
Vernon Patrick Desmond Fraser
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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