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Sunvin 27 is a benzotriazole type UV absorber. It has a high and absorption in the wavelength of 300-400nm. UV-327 is also effective in polyethylene, unsaturated polyester, polypropylene and polycarbonate.

Chemical Family: Benzotriazoles

Functions: UV Absorber

Compatible Polymers & Resins: Acrylonitrile Butadiene Styrene (ABS), Polycarbonates (PC), Polyethylenes (PE), Polypropylenes (PP)

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

Synonyms: 2-(2-Hydroxy-3,5-di-tert-butylphenyl)-5-chloro-2H-benzotriazole, 2-(2-Hydroxy-3,5-di-tert-butylphenyl)-5-chlorobenzotriazole, 2-(2′-Hydroxy-3′,5′-di-tert-butylphenyl)-5-chlorobenzotriazole, 2-(3,5-Di-tert-butyl-2-hydroxyphenyl)-5-chloro-2H-benzotriazole, 2-(3,5-Di-tert-butyl-2-hydroxyphenyl)-5-chlorobenzotriazole, 2-(3′,5′-Di-tert-butyl-2′-hydroxyphenyl)-5-chlorobenzotriazole, 2-(5-Chloro-2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylethyl)phenol, 2,4-Di-(tert-butyl)-6-(5-chloro-2H-benzo[d][1,2,3]triazol-2-yl)phenol, 2,4-Di-tert-butyl-6-(5-chloro-2H-benzotriazol-2-yl)phenol, 2,4-Di-tert-butyl-6-(5-chlorobenzotriazol-2-yl)phenol, 2,4-Ditert-butyl-6-(5-chlorobenzotriazol-2-yl)phenol, 5-Chloro-2-(2-hydroxy-3,5-di-tert-butylphenyl)-2H-benzotriazole, 5-Chloro-2-(2-hydroxy-3,5-di-tert-butylphenyl)benzotriazole, 5-Chloro-2-(3,5-di-tert-butyl-2-hydroxyphenyl)-2H-benzotriazole, 5-Chloro-2-(3,5-di-tert-butyl-2-hydroxyphenyl)benzotriazole, 5-Chloro-2-(3′,5′-di-tert-butyl-2′-hydroxyphenyl)benzotriazole, Antioxidant 327, Light stabilizer 327

    Knowde Enhanced TDS

    Identification & Functionality

    Chemical Family
    Plastics & Elastomers Functions
    CAS No.
    3864-99-1
    EC No.
    223-383-8
    Chemical Name

    2-(2'-Hydroxy -3' ,5'-ditert-butylphenyl)-5-chloro benzotriazole

    Features & Benefits

    Labeling Claims
    Features
    • Odorless, does not bring smells to the polymers.
    • Excellent stability to heat.
    • Low volatility during high processing temperature.
    • Good extraction resistance.

    Applications & Uses

    Applications
    • Polyethylene: 0.2-0.4wt% based on solids.
    • Polypropylene: 0.3-0.5wt% for rigid PVC based on solids.
    • Styrenic Polymers: 0.2-0.5wt% for PS based on solids.
      0.5-2.0wt% for ABS based on solids.
    • Unsaturated Polyester: 0.2-0.4wt% for PS based on solids.

    Properties

    Physical Form
    Appearance
    Slightly yellowish powder
    Typical Properties
    ValueUnitsTest Method / Conditions
    Molecular Weight357.5--
    Assaymin . 99%-
    Ash Contentmax. 0.3%-
    Melting Point154 -157 °C-
    Transmittancemin . 93%-

    Safety & Health

    Toxicity & Safety

    UV-327 can be safely handled without irritation caused to the skin.

    Packaging & Availability

    Packaging Type
    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.