UV Absorber UV-P

Chemical Name: (2'-Hydroxy-5mg-methylphenyl) benzotriazole CAS NO.: 2440-22-4 Molecular Formula：C13H11N3O Molecular Weight：225.3 Specification Appearance: white to light yellow crystal powder Content: ≥ 99% Melting point: 128-130 °C Loss on drying: ≤ 0.5% Ash: ≤ 0.1% Light transmittance: 450nm≥90%; 500nm≥95% Application This product provides ultraviolet protection in a wide variety of polymers including styrene homo- and copolymers, engineering plastics such as polyesters and acrylic resins, polyvinyl chloride, and other halogen containing polymers and copolymers (e.g. vinylidenes), acetals and cellulose esters. Elastomers, adhesives, polycarbonate blends, polyurethanes, and some cellulose esters and epoxy materials Usage 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 Package and Storage 1. 25kg carton 2. Stored in sealed, dry and dark conditions