Light stabilizer and preparation process thereof

• Main Authors: HU XINLI, LIU ENJING, XIE ZHENHAI, XIANG ZHANBO, CHEN JINKUN, ZHOU ZIYI, LI DAWEI
• Format: Patent
• Language: Chinese; English
• Published: 27.08.2024
• Subjects: CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY

The invention discloses a preparation process of a light stabilizer 2, 4-bis [N-butyl-(1-cyclohexyloxy-2, 2, 6, 6-tetramethyl-4-piperidyl) amino]-6-(2-hydroxyethylamine)-1, 3, 5-triazine, which comprises the following steps: by taking 2-chloro-4, 6-bis (N-butyl-1-cyclohexyloxy-2, 2, 6, 6-tetramethyl-4-piperidyl amino)-1, 3, 5-triazine and ethanolamine as raw materials, preheating, stirring and dissolving the raw materials in a mixing reaction kettle; according to the present invention, with the method, the reaction endpoint can be rapidly achieved by using the pipeline circulation reactor to perform the circulation reaction in the non-solvent environment, the excessive ethanolamine can be infinitely recovered and reused, the cost is low, the operation is simple, the operation is easy, the cost is low, and the production efficiency is high. And the economic and environment-friendly effects are achieved, and the productivity is greatly improved. 本发明公开了一种光稳定剂2,4-二[N-丁基-(1-环己氧基-2,2,6,6-四甲基-4-哌啶基)氨基]-6-(2-羟乙胺)-1,3