ASPHALT COMPOSITION

摘要

An asphalt composition is made by incorporating 4-18 weight %, based on the total weight of the composition, of a hydrogenated thermoplastic elastomer having a bromine number of 10 g Br<SUB>2</SUB>/100 g or less, a molecular weight of 50 000 to 200 000 and a styrene content of 15-40 weight %, and wherein 5-35 weight % of block copolymers of the aforesaid styrene is present at each of the two ends of the elastomer molecules, into an asphalt such as straight asphalt, blown asphalt or the like. The asphalt composition has excellent thermal stability and high temperature storage stability, and excellent durability in the temperature range from -2O°C to 600°C.