Patent ID: 7435271

Claim:
An additive for improving cold-flow and lubricating properties of fuel oils, comprising A) 20-80% by weight of at least one oil-soluble amphiphile selected from the group consisting of glyceryl monooleate, oleic acid diethanolamide, oleic acid, tall oil fatty acid, polyisobutenylsuccinic anhydride diesterifled with diethylene glycol, and C 18 H 35 —O—CH 2 —CH(OH)—CH 2 OH and B) 20-80% by weight of a terpolymer containing from 3 to 18 mol % of structural units derived from an ester of a carboxylic acid having from 2 to 4 carbon atoms, from 0.5 to 10 mol- % of structural units derived from a vinyl ester of a neocarboxlic acid selected from the group consisting of neononanoic acid, neodecanoic acid, neoundecanoic acid, neododecanoic acid, and structural units of ethylene to 100 mol %, and having a melt viscosity, measured at 140° C., of from 20 to 10,000 mPas.