UV absorber UV-329

　　Alias: 2-(2-hydroxy-5-tert-octylphenyl)benzotriazole

　　Structural formula: C20H25N3O

　　CAS: 3147-75-9

　　Appearance: white powder

　　Melting point: 101-106℃

　　Ash: ﹤0.1%

　　Transmittance: 440nm≥97%, 500nm≥98%

　　Content: ≥99%

　　Product usage and precautions

　　⒈Ultraviolet absorber UV-329 is a highly effective anti-aging agent with excellent performance, can absorb ultraviolet light of 270-340 nanometers, widely used in PE, PVC, PP, PS, PC, polypropylene fiber, ABS resin, epoxy resin , Resin fiber and ethylene vinyl acetate.

　　⒉ This product can be used for packaging materials such as plastic containers and food packaging boxes, providing them with a good light stabilization effect.

　　⒊Dosage of this product: 0.1-0.5% for thin products and 0.05-0.2% for thick products.

　　⒋ Packing: cardboard drum lined with plastic bag, net weight 25 kg per drum.