What is a polyurethane substance? ...
Answers: Any of various polymers containing the urethane dire; a wide choice of synthetic forms are made and used as adhesives or plastics or paints or rubber
Polyurethane is purely a fancy name for plastic...That's it...So anything you can ruminate of that's made of plastic (i.e. cups, toys, tools, plates, your computer, gladware, pens, etc.) those are adjectives contain polyurethane to some extent.