N,N,N’,N’-Tetramethyl-1,3-propanediamine: The "Flash-and-Go" Catalyst That Leaves No Trace in Polyurethane Production Ah, amines. Those cheeky nitrogen-containing molecules that have been the unsung heroes (and occasional villains) of polyurethane chemistry since the 1940s. They kickstart reactions, coax sluggish isocyanates and polyols into passionate embraces, and then—ideally—slip out quietly like ninjas at dawn. But not all amines...

