High Efficiency Ultraviolet Absorbent UV-360

Synonyms: 2, 2'-Methylenebis(6-(benzotriazol-2-yl)-4-tert-octylphenol); 2, 2'-Methylenebis(6-(2H-benzotriazol-2-yl)-4-(1, 1, 3, 3-tetramethylbutyl)phenol

Introduction:  
This product is high-efficiency ultraviolet absorbent and widely soluble in many resins. This product is used in polypropylene resin, polycarbonate, polyamide Resin and others. 

Molecular formula: C₄₁H₅₀N₆O₂

Molecular weight: 659

CAS NO.: 103597-45-1

Chemical structural formula: 

Technical index: 
Appearance: light yellow powder
Content: ≥ 99%
Melting point: 195°C
Loss on drying: ≤ 0.5%
Ash: ≤ 0.1%
Light transmittance: 440nm≥97% 
500nm≥98%

Toxicity: low toxicity, rattus norvegicus oral LD 50 >2g/Kg weight. 

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