BITUMEN SOLID AT AMBIENT TEMPERATURE
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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.
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Citations
35 Claims
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1-15. -15. (canceled)
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16. A bitumen which is solid at ambient temperature in the form of pellets comprising a core and a coating layer, in which:
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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, one organogelator compound chosen from the compounds of general formula (I), (II) 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;
R2—
(NH)nCONH—
(X)m—
(NHCO)p(NH)n—
R2′
(II)in which; the R2 and R2′
groups, which are identical or different, represent a saturated or unsaturated and linear, branched or cyclic hydrocarbon chain comprising from 1 to 22 carbon atoms which is optionally substituted and which optionally comprises one or more heteroatoms, C5-C24 hydrocarbon rings or C4-C24 hydrocarbon heterocycles comprising one or more heteroatoms, and R2′
can be H;the X group represents a saturated or unsaturated and linear, cyclic or branched hydrocarbon chain comprising from 1 to 22 carbon atoms which is optionally substituted and which optionally comprises one or more heteroatoms, C5-C24 hydrocarbon rings or C4-C24 hydrocarbon heterocycles comprising one or more heteroatoms; n, m and p are integers having a value of 0 or 1, independently of one another;
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. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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Specification