Chemical Name: (2'-Hydroxy-5mg-methylphenyl) benzotriazole Synonyms:2-(2-Benzotriazolyl)-4-methylphenol Molecular FormulaC13H11N3O Molecular Weight225.3 Structure CAS Number 2440-22-4
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%
Applications: 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
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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