Making cleaner, greener plastics from waste fish parts

Polyurethanes are nearly everywhere, but these highly versatile materials can have a major downside. Derived from crude oil, toxic to synthesize, and slow to break down, conventional polyurethanes are not environmentally friendly. Now, researchers discuss devising what they say should be a safer, biodegradable alternative derived from fish waste -- heads, bones, skin and guts -- that would otherwise likely be discarded.

source https://www.sciencedaily.com/releases/2021/04/210405075901.htm