申请人:Ciba-Geigy Corporation
公开号:US05204473A1
公开(公告)日:1993-04-20
Hindered amines based on various 2,2,6,6-tetraalkylated nitrogen-containing heterocyclic moieties wherein the hindered nitrogen atom on the ring is substituted with OR.sub.1 substituents and the 4-position of the ring is substituted with a variety of groups, are effective as light stabilizers in diverse substrate systems.
基于不同的2,2,6,6-四烷基氮杂环基团的受阻胺,其中环上的受阻氮原子被取代为OR.sub.1基团,环的4位被取代为多种基团,可作为各种基质系统中的光稳定剂。