Improving Synthesis of Hindered Amine Light Stabilizer of Cyasorb UV-3346
SHU Xue-gui~1,DONG Chuan-ming~1,BAI Guo-yi~2,CHEN Li-gong~1 (1.College of Pharmaceuticals and Technology,Tianjin University,Tianjin 300072,China;2.College of Chemistry and Environmental Science,Hebei University,Hebei Baoding 071002,China)
(1.College of Pharmaceuticals and Technology,Tianjin University,Tianjin 300072,China;2.College of Chemistry and Environmental Science,Hebei University,Hebei Baoding 071002,China
Abstract��
Hindered amine light stabilizer of Cyasorb UV-3346 was synthesized in total yield of 60% by three steps from cyanuric chloride,morpholine and N,N��-bis-(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexanediamine as starting materials.The average molecular weight of Cyasorb UV-3346 is between(2 000) and (3 000),and the transparency is over 96% under the wavelength of 425 nm and 450 nm.
SHU Xue-gui~1,DONG Chuan-ming~1,BAI Guo-yi~2,CHEN Li-gong~1 .Improving Synthesis of Hindered Amine Light Stabilizer of Cyasorb UV-3346[J]. Chemcial Industry and Engineering, 2006,23(4): 327-330
2006, Vol. 23 
