Pyrotechnic compositions
Pyrrole-stabilised chlorine-containing thermoplastics
Pyrroles as costabilizers for moulding compositions based on...
Pyrrolidinone-containing compatibilisers
Pyrrolidone polymerization
Pyrrolidone-carboxylic modified polysiloxanes having aqueous...
Pyrrolidone-group-containing polyesters and polyamides
Pyrrolidonyl polyacrolein and bisulfite addition compounds