The cup's high impact polystyrene lid is not recyclable, but the company says it is working to make one that is. Related: McDonald's is going green.

The outlet for excess styrene: more polystyrene, some portion of which would later be modified into high-impact grades. Dad’s kind of polystyrene . Photograph by Matthew Porter for The Atlantic ...

When modified by incorporating elastomers, polystyrene homopolymer becomes (high) impact polystyrene (HIPS), which is generally opaque. Therefore, a large number of polystyrene grades are available on ...

High-impact polystyrene (HIPS) nanocomposites were prepared by melt compounding two grades of organoclays (Cloisite 10A (C10A) and Cloisite 30B (C30B)) in a Haake internal mixer or a corotating ...

Call it a potentially small step for mankind but a potentially giant one for McDonald's: Some 2,000 of its restaurants, 15 percent of all those in the U.S., are testing the idea of recycling their ...

From takeout containers to coffee cups, this single-use brittle pollutant is everywhere, and because it takes 500 years to decompose, it’s not leaving any time soon.