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Sunvin 26 is a benzotriazole type UV absorber. It offers superior light protection of polyolefin substracts against the deterioration of UV radiation, It is also efficient for the light stabilization of polyvinyl chloride, unsaturated polyurethane, styrenic polymers, coatings and lacquers.

Chemical Family: Benzotriazoles

Functions: UV Absorber

Compatible Polymers & Resins: Polyethylenes (PE), Polypropylenes (PP), Polystyrenes (PS), Polyurethanes (PU), Polyvinyl Chloride (PVC)

Features: Chemical Resistant, Excellent Compatibility, Heat Stabilized, Low Toxicity, Low Volatility

Synonyms: 2-(2-Hydroxy-3-tert-butyl-5-methylphenyl)-5-chloro-2H-benzotriazole, 2-(2-Hydroxy-3-tert-butyl-5-methylphenyl)-5-chlorobenzotriazole, 2-(2′-Hydroxy-3′-tert-butyl-5′-methylphenyl)-5-chlorobenzotriazole, 2-(2′-Hydroxy-3′-tert-butyl-5′-methylphenyl)-5-chlorobenztriazole, 2-(3-tert-Butyl-2-hydroxy-5-methylphenyl)-5-chloro-2H-benzo-v-triazole, 2-(3-tert-Butyl-2-hydroxy-5-methylphenyl)-5-chloro-2H-benzotriazole, 2-(3-tert-Butyl-2-hydroxy-5-methylphenyl)-5-chlorobenzotriazole, 2-(3-tert-Butyl-5-methyl-2-hydroxyphenyl)-5-chlorobenzotriazole, 2-(3′-tert-Butyl-2′-hydroxy-5′-methylphenyl)-5-chlorobenzotriazole, 2-(3′-tert-Butyl-5′-methyl-2′-hydroxyphenyl)-5-chlorobenzotriazole, 2-(5-Chloro-2-benzotriazolyl)-6-tert-butyl-p-cresol, 2-(5-Chloro-2H-benzotriazol-2-yl)-6-(1,1-dimethylethyl)-4-methylphenol, 2-(5-Chloro-2H-benzotriazol-2-yl)-6-tert-butyl-4-methylphenol, 2-(tert-Butyl)-6-(5-chloro-2H-benzo[d][1,2,3]triazol-2-yl)-4-methylphenol, 2-[5-Chloro-2H-benzotriazol-2-yl]-4-methyl-6-(tert-butyl)phenol, 2-tert-Butyl-6-(5-chloro-2-benzotriazolyl)-4-methylphenol, 2-tert-Butyl-6-(5-chloro-2H-benzotriazol-2-yl)-4-methylphenol, 5-Chloro-2-(2-hydroxy-3-tert-butyl-5-methylphenyl)-2H-benzotriazole, 5-Chloro-2-(3-tert-butyl-2-hydroxy-5-methylphenyl)benzotriazole

    Knowde Enhanced TDS

    Identification & Functionality

    Chemical Family
    Chemical Name
    Plastics & Elastomers Functions
    CAS No.
    3896-11-5
    EC No.
    223-445-4
    Chemical Name

    2-(2'-Hydroxy -3' -tert-butyl-5'-methylphenyl)-5-chloro benzotriazole

    Features & Benefits

    Labeling Claims
    Features
    • Very high photostability for its strong ability to absorb light especially in UV region(290-400nm)
    • Odorless, does not bring smells to the polymers.
    • High resistance to thermal degradation.
    • Low vapor pressure, very little or no loss during processing.

    Applications & Uses

    Applications
    • Styrenic polymers: 0.2-0.5wt% for PS based on polymer weight.
      0.5-2.0wt% for ABS based on polymer weight.
    • Polyvinyl chloride: 0.2-0.5wt% for PVC based on polymer wt.
    • Polypropylene: 0.3-0.6wt% for PS based on polymer weight.
    • Coatings and lacquers: 0.5-1.0wt% for nitrocellulose based on polymer weight.
    • Unsaturated Polyester: 0.2-0.4wt% for PS based on polymer wt.

    Properties

    Physical Form
    Appearance
    Slightly yellowish crystal powder
    Typical Properties
    ValueUnitsTest Method / Conditions
    Molecular Weight315.5--
    Assaymin . 99%-
    Ash Contentmax. 0.3%-
    Melting Point138-141°C-
    Transmittancemin . 93%-

    Safety & Health

    Toxicity & Safety

    UV-326 can be safely handled without irritation caused to the skin.

    Packaging & Availability

    Packaging

    In 25 kg carton drum with inner plastic bag.

    Storage & Handling

    Storage

    In a closed system and dry, dark place without any light exposure.