Compounds which have a benzotriazole and a hindered amine moiety in the same molecule are typified by the formula A
1
wherein at least one of G
2
, R
1
or R
2
contains a hindered amine moiety are extremely effective light stabilizers having both the UV absorbing activity of a benzotriazole and the light stabilizing efficacy of a hindered amine in the same molecule. These compounds are effective stabilizers for thermoset resin compositions, thermoplastic resin compositions, for photographic applications, for pigmented or dyed polypropylene, polyamide or polyester fibers, and for white, dyed, dipped, unscented and/or scented candle wax against discoloration and fading when incorporated therein alone or in combination with an antioxidant.
具有苯并三唑和受阻胺基团的化合物,在同一分子中以A1公式为代表,其中至少有G2、R1或R2中的一个含有受阻胺基团,具有苯并三唑的UV吸收活性和受阻胺的光稳定效果。这些化合物是热固性
树脂组合物、热塑性
树脂组合物、摄影应用、有色或染色聚
丙烯、聚酰胺或涤纶纤维以及白色、染色、浸渍、无香味和/或有香味蜡烛蜡的有效稳定剂,可防止其变色和褪色,当单独或与
抗氧化剂混合加入其中时。