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    UV Absorbers Current Position: home > UV Absorbers
    Product:UV-326

    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.

     
     
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        Intermediates
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    -Nitrogen trifluoride
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    -2-Bromophenyl methyl sulfoxide
    -2-Chloro-5-nitro benzoic acid
    -2-Chloro-6-nitrotoluene
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    -2-Cyanobenzyl chloride
    -Pentafloroiodine
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    -avobenzone
     

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