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AssigneeTotal Raffinage Marketing
InventorsNelly Dolmazon, Laurent Dalix, Erwan Chevrot, Frédéric Tort
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The invention relates to the use, in a hydrocarbon distillate with a boiling temperature of between 150 and 450° C. and a crystallization onset temperature as measured by Differential Calorimetric Analysis of greater than or equal to −50° C., preferably of −5° C. to +10° C., of a homopolymer obtained from an olefinic ester of carboxylic acid of 3 to 12 carbon atoms and from a fatty alcohol containing a chain of more than 16 carbon atoms and optionally an olefinic double bond, as a compound for revealing the efficiency of filterability additives based on copolymer and/or terpolymers of ethylene and of vinyl ester of a carboxylic acid of 3 to 12 carbon atoms, and of a monoalcohol containing 1 to 10 carbon atoms. The invention is also directed to an additive composition comprising a conventional hydrocarbon filterability additive in combination with an efficiency reveal additive, and also to the combustion fuels, motor fuel and oil fuel that comprise these additive combinations.
The use in a hydrocarbon distillate with a boiling temperature comprised between 150 and 450° C. and with an onset crystallization temperature as measured by differential scanning calorimetry analysis, greater than or equal to −5° C., preferably from −5° C. to +10° C., of a homopolymer obtained from an olefinic ester of a carboxylic acid with 3 to 12 carbon atoms and of a fatty alcohol comprising a chain of more than 16 carbon atoms and optionally an olefinic double bond, as a compound for revealing the efficiency of filterability additives based on a copolymer and/or terpolymer of ethylene and of a vinyl ester of a carboxylic acid with 3 to 5 carbon atoms and of a monoalcohol comprising 1 to 10 carbon atoms.
A composition comprising a mixture further comprising:
A composition comprising (A) from 85 to 99% by weight of at least one filterability additive based on a copolymer and/or terpolymer of ethylene and of a vinyl ester of a carboxylic acid with 3 to 5 carbon atoms, of a monoalcohol comprising 1 to 10 carbon atoms and (B) from 1 to 15% by weight of a homopolymer of an olefinic ester of a carboxylic acid with 3 to 12 carbon atoms and of a fatty alcohol comprising more than 16 carbon atoms.
Dependencies are inferred from the claim text.