Bitumen solid at ambient temperature
AssigneeTotal Marketing Services
InventorMouhamad Mouazen
Life of this patent
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Abstract
A bitumen granules including a core and a coating layer, in which the core includes at least one bitumen base, and the coating layer includes at least: one oil selected from a hydrocarbon oil of petroleum or synthetic origin; and at least one organogelator compound selected from among compounds of general formula (I), (II) or (V). The invention also relates to a method for producing bitumen granules, as well as to the use thereof as an asphalt binder, in particular for producing mixes. The invention further relates to a method for producing mixes from bitumen granules and also to a method for transporting and/or storing and/or handling bitumen granules.
Claims19
A bitumen which is solid at ambient temperature in the form of pellets comprising a core and a coating layer, in which:
- the core comprises at least one bitumen base,
- and
- the coating layer comprises at least:
- one oil chosen from a hydrocarbon oil of petroleum or synthetic origin,
- from 0.1% to 10% by weight, with respect to the total weight of the coating layer, of one or more organogelator compounds chosen from the compounds of general formula (I) or (V):
- Ar1-R1—Ar2 (I)
- in which:
- Ar1 and Ar2 represent, independently of one another, a benzene nucleus or a system of condensed aromatic nuclei of from 6 to 20 carbon atoms which are substituted by at least one hydroxyl group and optionally substituted by one or more C1-C20 alkyl groups, and
- R1 represents an optionally substituted divalent radical, the main chain of which comprises from 6 to 20 carbon atoms and at least one group chosen from the amide, ester, hydrazide, urea, carbamate and anhydride functional groups;
- R5—(COOH)z (V)
- in which:
- R5 represents a linear or branched and saturated or unsaturated chain comprising from 4 to 68 carbon atoms, and z is an integer varying from 2 to 4.
Dependencies are inferred from the claim text.