• UV Absorber UV328

UV Absorber UV328

    2-(2H-benzotriazol-z-yl)-4,6-di-tert-pentylphenol

    Chemical Formula: C22H29N3O

    CAS NO. :3896-11-5

    UV328 is a high performance Ultraviolet Absorber. Its maximum ultraviolet absorption peak is 345nm, its light stability is similar to UV-326 and UV-327, but this product has good dissolubility with the resins. Its heat volatility is low and its durability to washing is very good. 


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Specification

ItemValue
AppearanceLight Yellow Powder
Content(wt%)≥99
Melting Point79-88
Loss on Drying(wt%)≤ 0.5
Ash(wt%)≤ 0.1
Transmittance(wt%)425nm :≥97; 500nm: ≥98


Application

It is mainly used in polyethylene, polypropylene, polystyrene, polyvinyl chlornamee, polyester, epoxy resin, ABS resin and cellulosic resin, etc., about 1% of general consumption. Has a fine light stability too in various kinds of coating.


Packing

25kg/bag


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