Chemical name :

2-(2'-Hydroxy-3'-tert-butyl-5'-methylphenyl)-5-chlorobenzortriazole
Introduction: UV-326 is a benzotriazole type ultraviolet light absorber (UVA), imparting good light stability for plastics and other organic polymers. especially suited for polyolefins and cold cured polyesters. It protects polymers from UV radiation helping to preserve the original appearance and physical integrity, especially for polyolefins and polyester resins.

Details:
Molecular formula:C₁₇H₁₈N₃0Cl
CAS NO : 3896-11-5
Structure :

Properties

Appearance : slight yellow powder  Melting Range : 138-141 °C

Transmittance (%) : 460nm≥97  500nm≥98

Applications:

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
Packing: it is available in powder form in a 25kg fiber drum, net weight, with an inner PE liner or 25kg carton.