High quality UV Absorber UV 329 cas 3147-75-9
Product Name: UV Absorber UV 329
Synonyms : 2-(2H-Benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol; UV-329; UV-5411; UV Absorber 329
CAS: 3147-75-9
UV-329 is widely used in polymers and other organic substances, including polycarbonate, rigid PVC, flexible pvc. It has good light transmittance in visible light range, so it is widely used in various optical materials and can be added to the polymer materials contacting with food.
Keep container tightly closed. Avoid ingestion and inhalation.
20KG carton box or 25KG carton drum, or as customers’ requirements
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Trade Name
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UV-329
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Chemical Name
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2- (2'-Hydroxy-5'-tert-octylphenyl)benzotriazole
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Formula
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C20H25N3O
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CAS NO.
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3147-75-9
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Molecular Weight
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323.4
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Specifications
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Appreance
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White powder
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Purity
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≥99%(HPLC)
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Melting Point
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103-105.3oC
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Ash
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≤0.1%
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Loss On Drying
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≤0.3%
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Transmittance
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440 nm≥97%
500 nm≥98%
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Advantage and Application
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1. This product is an excellent high-efficiency, aging-preventing agent, which can effectively absorb 270-380 nm UV light.2. Non-flammable, non-explosive, non-toxic, harmless to health.
3. This product almost does not absorb visible light, particularly applicable to colorless and light-colored products. 4. This product is suitable for polyester, rigid PVC, PS, PMMA, PC, ABS resin, etc. It effects better in a transparent products |
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Recommended dosage
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PS
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ABS
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PE
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PVC
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Polyester
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0.2-0.5%
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0.3-0.5%
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0.2-0.4 %
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0.2-0.5 %
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0.3-0.5%
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Package
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20KG cartons or drum; 500kg in one pallet
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