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Shanghai Deborn Co., Ltd.

Ultraviolet Absorbent UV-328, UV-328, Tinuvin 328 manufacturer / supplier in China, offering PU, PVC, Coating UV Absorber UV-328, Glycidyl Methacrylate, Methyl Paraben Used as Preservatives and so on.

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Supplier Homepage Product Plastic Auxiliaries UV Absorber PU, PVC, Coating UV Absorber UV-328

PU, PVC, Coating UV Absorber UV-328

FOB Price: Get Latest Price
Min. Order: 25 kgs
Port: Shanghai, China
Transport Package: 25kg/Carton
Payment Terms: L/C, T/T, D/P
Basic Info
  • Model NO.: UV-328
  • Usage: Plastic Auxiliary Agents
  • Trademark: DEBORN
  • Origin: China
  • Appearance: Powder
  • Color: Yellow
  • Specification: 98%
  • HS Code: 381220
Product Description
Chemical name2-(2-Hydroxy-3, 5-diamylphenyl)benzotriazole; 2-(2-Hydroxy-3, 5-dipentylphenyl)benzotriazole

Molecular formula: C22H29N3O

Molecular weight: 351.5

CAS NO.: 21615-48-6

Chemical structural formula
PU, PVC, Coating UV Absorber UV-328

Appearance: white to light yellow powder
Content: ≥ 99%
Melting point: 80-83°C
Loss on drying: ≤ 0.5%
Ash: ≤ 0.1%
Light transmittance: 
Wave length nm Light transmittance %  
440 ≥ 96 
500 ≥ 97

Toxicity: low toxicity and used in food packing materials. 

Use: This product is mainly used in polyvinyl chloride, polyurethane, polyster resin and others. Max absorption wave length range is 345nm. 

Water solubility: Soluble in benzene, toluene, Styrene, Cyclohexane and other organic solvents. 

General dosage: . 
1. Unsaturated Polyester: 0.2-0.5wt% based on polymer weight
2. PVC: 
Rigid PVC: 0.2-0.5wt% based on polymer weight
Plasticized PVC: 0.1-0.3wt% based on polymer weight
3. Polyurethane: 0.2-1.0wt% based on polymer weight
4. Polyamide: 0.2-0.5wt% based on polymer weight  

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