Piperidinyl Diamine (Bis-TMPA)

Piperidinyl diamine (bis(2,2,6,6-tetramethyl-4-piperidyl)amine) is a symmetric bifunctional intermediate with two hindered piperidine rings bridged by a secondary amine, used to produce triazine-based oligomeric HALS with higher nitroxyl radical density and thermal stability.

Applications: key intermediate for triazine-based oligomeric HALS; weathering modification of polymer materials.