POLYMER MODIFIED ASPHALT REACTION PRODUCTS

摘要

In a process for producing a cross-linked asphalt/polymer composition ("polymer-modified asphalt" or PMA) that comprises or is produced from asphalt and an ethylene copolymer, an anhydride is used as a promoter. The ethylene copolymer comprises copolymerized units derived from ethylene and an epoxy-containing comonomer. An improvement in asphalt properties is demonstrated without the use of an acid catalyst.