C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 220/18 (2006.01) C10M 145/14 (2006.01)
Patent
CA 2117419
Copolymers of unsaturated fatty esters capable of being obtained by copolymerization in a mineral oil of a percentage of an ester of a carboxylic acid A1, of a percentage of an ester of a carboxylic acid A2 and a percentage c of anester of a carboxylic acid A3, wherein a is between 12 and 20%, c is between 14 and 30% and b, which is preferably between 72 and 45%, is such that a + b + c = 100%. The copolymers in accordance with the invention are employed as viscosity improver in lubricating oils.
Ridout & Maybee Llp
The Lubrizol Corporation
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