METHOD FOR PREPARING CURED ASPHALT/POLYMER COMPOSITIONS WITHOUT A CURING AGENT

The disclosure relates to a method for preparing crosslinked bitumen/polymer compositions without using any crosslinking agent, wherein at least one bitumen and at least one polymeric composition including at least 80% by mass with respect to the mass of the polymeric composition, of a diblock copol...

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Bibliographische Detailangaben
Hauptverfasser:	HARDERS, SYLVIA, MESNIL, JEAN-PIERRE, CHAMINAND, JULIEN
Format:	Patent
Sprache:	eng ; pol
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	The disclosure relates to a method for preparing crosslinked bitumen/polymer compositions without using any crosslinking agent, wherein at least one bitumen and at least one polymeric composition including at least 80% by mass with respect to the mass of the polymeric composition, of a diblock copolymer of a monovinylaromatic hydrocarbon block and of a conjugate diene block having a molecular mass greater than or equal to 80,000 g mol−1 a content of 1-2 double bond units coming from the conjugate diene greater than or equal to 15% by mass with respect to the total mass of the conjugate diene units, are brought into contact, optionally with stirring, at a temperature between 180° C. and 220° C. for a period of 4 hours to 48 hours.