BITUMEN COMPOSITIONS CONTAINING ADDITIVES WITH IMPROVED THERMO-REVERSIBLE PROPERTIES Russian patent published in 2017 - IPC C08L95/00 C09D195/00 E01C7/18 E04B1/66 C08K5/00 

FIELD: chemistry.

SUBSTANCE: bitumen composition contains bitumen, the first additive containing at least one functional group of a saturated or unsaturated fatty acid ester, linear or branched, having a hydrocarbon chain of 4 to 36 carbon atoms optionally substituted by at least one hydroxyl group, and the second additive containing at least one organic gellant. The invention also relates to application of a combination of the first and second additives in a bitumen composition to reduce the dynamic viscosity of the bitumen composition or bitumen base at a temperature higher than or equal to 80°C, preferably higher than 80°C, without impairing the consistency of the said composition at operating temperatures. Finally, the invention relates to the use of these bitumen compositions in the field of road applications, in particular, in production of road binders, and in the field of industrial applications.

EFFECT: improved composition properties.

17 cl, 2 tbl