Dragonsorb® 328 is an excellent ultraviolet absorbent with a UVmax of 345nm. It has good polymer solubility and low volatility and is mainly used for PE, PP, PS, PVC, polyester, ABS, and so on. This pale yellowish powder has a melting point of 81°C and is soluble in benzene, toluene, ethyl acetate, and petroleum ether; slightly soluble in ethyl alcohol and methyl alcohol; and insoluble in water.
Functions: UV Absorber
Compatible Polymers & Resins: Acrylonitrile Butadiene Styrene (ABS), Polyesters, Polyethylenes (PE), Polypropylenes (PP), Polystyrenes (PS), Polyvinyl Chloride (PVC)
Synonyms: 2-(2-Hydroxy-3,5-di-tert-amylphenyl)-2H-benzotriazole, 2-(2-Hydroxy-3,5-di-tert-amylphenyl)benzotriazole, 2-(2-Hydroxy-3,5-di-tert-pentylphenyl)benzotriazole, 2-(2′-Hydroxy-3′,5′-di-tert-amylphenyl)benzotriazole, 2-(2H-Benzotriazol-2-yl)-4,6-bis(1,1-dimethylpropyl)phenol, 2-(2H-Benzotriazol-2-yl)-4,6-di-tert-amylphenol, 2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol, 2-(3,5-Di-tert-amyl-2-hydroxyphenyl)-2H-benzotriazole, 2-(3,5-Di-tert-amyl-2-hydroxyphenyl)benzotriazole, 2-(3,5-Di-tert-pentyl-2-hydroxyphenyl)-2H-benzotriazole, 2-(3,5-Di-tert-pentyl-2-hydroxyphenyl)benzotriazole, 2-(3′,5′-Di-tert-amyl-2′-hydroxyphenyl)benzotriazole, 2-(Benzotriazol-2-yl)-4,6-bis-(1,1-dimethyl-propyl)phenol, 2-(Benzotriazol-2-yl)-4,6-bis-(2-methylbutan-2-yl)phenol, 2-[2-Hydroxy-3,5-bis(1,1-dimethylpropyl)phenyl]-2H-benzotriazole, Light Stabilizer 328
