Ultraviolet Absorber UV-328

Ultraviolet Absorber UV-328

Chemical name:2-(2H-hydroxy-3-5-Di-tert-Amyllphenyl)benzotriazole 
Molecular formula:C22H29N3O 
Melting point:80-83 ℃ 
Appearance:Light yellow powder 
It is a highperformance 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. 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.

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