申请人:Wood G. Mervin
公开号:US20050043543A1
公开(公告)日:2005-02-24
Compounds which have a benzotriazole and a hindered amine moiety in the same molecule are typified by the formula A
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在同一分子中的化合物,其公式通常为A,其中至少G2、R1或R2中的一个包含受阻胺基团,具有苯并三唑的UV吸收活性和受阻胺的光稳定效果,是极其有效的光稳定剂。这些化合物对热固性树脂组合物、热塑性树脂组合物、摄影应用、带色或染色的聚丙烯、聚酰胺或聚酯纤维以及白色、染色、浸渍、无香味和/或有香味的蜡烛蜡具有防止变色和褪色的作用,当单独或与抗氧化剂组合时。