| Customization: | Available |
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| CAS No.: | 3147-75-9 |
| Formula: | C20h25n3o |
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| Classification: | Chemical Auxiliary | Product Name: | UV absorbers 329 |
| Place of Origin: | Jiangsu, China | CAS No.: | 3147-75-9 |
| Brand Name: | Unitechem | Purity: | ≥99 % |
| Package: | 25kg cardboard or customized | Color: | Light yellow |
| Freight Term: | FOB, CIF, CFR | Appearance: | Slightly yellow powder |
| Port of departure: | Shanghai | MOQ: | ≥25 kg |
| Content | UV absorbers 329 |
| Chemical Name | 2-(2'-Hydroxy-5'-tert-octylphenyl) benzotriazole |
| CAS NO | 3147-75-9 |
| Appearance | Light yellow to off-white powder |
| Volatile Matter | ≤0.3% |
| Melting Point | 103-105.3ºC |
| Ash | <0.1% |
| Light Transmittance | ≥97% (440nm) ≥98% (500nm |
| Features and Application | UV Absorber 329 is a strong absorber of ultraviolet radiation in the 300-400nm region. It has a low volatility, and especially has good perforin transparent products and high temperature processing engineering plastics. The product is mainly used for polyolefin, pet, PVC, PP, PS, PC, PP fiber, ABS resin, epoxy resin, resin and ethylene vinyl acetate, etc., to protect the polymer from ultraviolet radiation. It improves the anti-aging properties for film, sheet, molding products, fiber products to maintain its appearance and mechanics performance. It can be used together with phenolic antioxidant, phosphite ester antioxidant and hindered amine light stabilizer. Especially suitable for colorless transparent and light products. |
| Package and Storage | Package: 25kg carton inner with plastic bag or as customer`s requirement. Storage: Keep container tightly closed in a dry and well-ventilated place. |
| Cautions | The use of proper protective equipment is recommended. Excess exposure to the product should be avoided. Wash thoroughly after handling. |
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