| abstract |
The present invention provides benzotriazoles and their use as UV stabilizers. The following formula A: Embedded image Wherein at least one of G 2 , R 1 or R 2 contains a sterically hindered amine moiety, a compound having a benzotriazole moiety and a sterically hindered amine moiety in the same molecule In addition, it is a very useful light stabilizer having the ultraviolet absorption activity of benzotriazole and the light stabilizing effect of sterically hindered amines. These compounds, when formulated alone or in combination with antioxidants, are pigmented or dyed for thermosetting resin compositions, thermoplastic resin compositions, for photographic applications, Useful stability against discoloration or fading for treated polypropylene fibers, polyamide fibers or polyester fibers and for white, dyed, impregnated, unscented and / or scented candle waxes Agent. |