for the following products
1,6-bis-(2,2,6,6-Tetramethyl-4-piperidylamino)hexane | 4,4'-(Hexamethylenediimino)bis(2,2,6,6-tetramethylpiperidine) | N,N'-bis-(2,2,6,6-Tetramethyl-4-piperidinyl)-1,6-hexanediamine | Synthesis of hindcrcd amine light stabilizer gw-944 and Hexamethylene-bis-triacetonediamine
