UV Absorber UV-329
Acts as a highly efficient UV-absorber. Provides excellent initial color and relative low volatility. Used for polyesters, PVC, styrenic polymers, acrylics, polyvinyl butyral (molding, sheet, glazing materials for window, lighting, sign, marine, and auto applications), PUR and polycarbonates.
Chemical and Physical Properties
Product Type : Light Stabilizers / UV Absorbers > Benzotriazoles
Chemical Composition : 2-(2′-Hydroxy-5′-t-octylphenyl)-benzotriazole
CAS Number : 3147-75-9
Physical Form : Powder
Property
Molecular weight: 323.4
Assay : > 99 %
Melting point : 103 – 107 °C
Loss on drying : < 0.5 %
Ash : < 0.1 %
Application
• PC
• PUR
• PVC > PVC, rigid
• PVC > PVC, flexible
• Households products/ Consumer Goods > Lightings
• Urban equipment and Roads > Signs
• Automotive/ Transportation
• Buildings & constructions > Glazing
