BITUMINOUS COMPOSITIONS

摘要

A bituminous composition comprising a blend of bitumen, a polyolefin and a thermoplastic elastomer containing at least two polymer blocks wherein one of said polymer blocks is a crystalline polymer block and one of said polymer blocks is an amorphous polymer block is provided. The bituminous compositions of the invention have excellent low temperature flexibility and high temperature creep resistance properties and are particularly useful as a roof coating or waterproofing material or a road paving material.