Dart makes, by the millions, white foam cups, clamshells, coffee cup lids, and disposable forks and knives — the single-use containers that enable Americans to eat and drink on the go.

Not only are the hot coffee cups going away but it's going to bring an end to the tradition that many Dunkin' customers have of "double cupping" or, rather, putting the foam cup around the outside ...

This is as true for insulation board as it is for the ubiquitous expanded polystyrene kind of foam used for everything from coffee cups to packaging material. Those stick-type hot wire cutters ...