Water used to wash recycling materials in the study became progressively darker as it was reused. Photo courtesy of Greg ...

Attempts in the past have tried adding plastic scrap to traditional building products, but shredding the material and dumping it into concrete or asphalt does not work in most applications because ...

Equipment maker Lindner and Procter & Gamble say their solvent-based Flexloop process can remove impurities from recycled polymer chains. The secondary resins obtained through Flexloop not only comply ...