AGENTI MODIFICANTI DI ASFALTI, PROCEDIMENTI PER LA MODIFICAZIONE DI ASFALTI MODIFICATI

• Main Authors: JEAN MARIE MULLER, KAMAL BOUSSAD
• Format: Patent
• Language: Italian
• Published: 15.02.1989
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

A process for modifying asphalt comprises mixing with asphalt, either as such or in aq. bituminous emulsion, 2.5-7.5 wt.% of a medium viscosity ethylene vinyl acetate (VA) polymer (I) having a melt index of 700-10,000 and contg. 5-40 wt.% pref. 11-40 wt.% of vinyl acetate. (I) has 0-10 alkyl-branche...