申请人:Ciba-Geigy Corporation
公开号:US04154722A1
公开(公告)日:1979-05-15
Polyalkylpiperidinyl esters of diazocarboxylic acids are prepared, which compounds protect organic polymers against UV light degradation. The light stabilizers have the ability to react with the organic polymeric substrates thus making the piperidinyl esters migration and extraction resistant. Polymers which may be stabilized with the compounds of this invention include polypropylene, polyethylene, polystyrene and polyamides.
制备了一种二氮基羧酸的聚烷基哌啶酯,这种化合物可以保护有机聚合物免受紫外线降解的影响。这些光稳定剂具有与有机聚合物基质反应的能力,从而使哌啶酯具有迁移和抽提抗性。可以使用本发明的化合物稳定的聚合物包括聚丙烯、聚乙烯、聚苯乙烯和聚酰胺。