6-Hexanediamine,N,N’-bis(2,2,6,6-tetramethyl-4-piperidinyl)-1; n,n’-bis(2,2,6,6-tetramethyl-4-piperidinyl)-6-; HEXAMETHYLENE-BIS-TRIACETONE DIAMINE; N,N'-BIS(2,2,6,6-TETRAMETHYL-4-PIPERIDINYL)-1,6-; HEXANEDIAMINE; N,N'-BIS-(2,2,6,6 TETRAMETHYL-4-PIPERIDYL)HEXAMETHYLENEDIAMINE; N,N'-Bis(2,2,6,6-tetramethylpiperidin-4-yl)hexane-1,6-diamine; N,N'-bis-(2,2,6,6-Tetramethyl-4-piperidinyl)-1,6-hexadiamine; N N'-BIS(2 2 6 6-TETRAMETHYL-4- &; N,N'-BIS-(2,2,6,6 TETRAMETHYL-4-PIPERIDYL)HEXAMETHYLENEDIAMINE(HMBTAD); N,N'-Bis(2,2,6,6-Tetramethyl-4-Piperidinyl)-1,6-Hexandiamine; N,N'-Bis-(2,2,6,6-Tetramethyl-; 1,6-Hexanediamine, N,N-bis(2,2,6,6-tetramethyl-4-piperidinyl)-; N,N''-BIS-(2,2,6,6-TETRAMETHYL-4-PIPERIDINYL)-1,6-HEXANEDIAMINE(HMBTAD); N,N''-BIS-(2,2,6,6-TETRAMETHYL-4-PIPERIDYL)-1,6-HEXAMETHYLENEDIAMINE; N,N'-Bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexandiamin; N,N-BIS-(2,2,6,6-TETRAMETHYL-4-PIPERIDINYL)-HEXAMETHYLENEDIAMINE; N,N'-bis(2,2,6,6-tetramethyl-4-piperidinyl)hexanediamine; N,N'-bis(2,2,6,6-tetramethylpiperidinyl)-1,6-hexanediamine; N,N-bis-(2,2,6,6-tetramethyl-4- piperidinyl) 1,6-hexanediamine; N,N-bis-(2,2,6,6-tetramethyl-4- piperidinyl)1,6-hexanediamine; N,N-bis-(2,2,6,6-tetramethyl-4-piperidinyl)-hexamethy lenediamine; piperidinyl-hexanediamine；