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Ultraviolet Absorbent UV-329( 5411) / 3029/ Tinuvin 329/ Cyasorb UV541/ Eversorb72/ Lowilite 29/ UV absorber
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Ultraviolet Absorbent UV-329( UV-5411)
Chemical Name 2-( 2' - Hydroxy -5' -tert-octylphenyl) Benzotriazole
Chemical Formula C20H25N3O
CAS NO. 3147-75-9
Main Indexes
Appearance : White Powder
Content: > = 99%
Melting Point : 101-106°C
Ash: 97% 500nm> 98%
Characteristics and Uses
This product is an excellent high-efficiency, aging-preventing agent, capable of absorbing the ultraviolet radiation of 270-340 nanometers, widely applied to PE, PVC, PP, PS, PC, polypropylene fiber, ABS resin, epoxy resin, resin fiber and ethylene -vinyl acetate etc. It can be applied to plastic containers and food packing boxes as packaging materials, provide them good light-stabilizing effect. Dosage: 0.1-0.5% for thin products and 0.05-0.2% for thick products.
Storing and Packing
This product is nontoxic , fire-resistive, explosive-resistive, and well stable in storing. It is packed in cardboard drum lined with plastic bags with the net capacities of 25 kg and 50 kg; it can also be packed according to customers' requirements.
Bohanchem offers plastic additives ( chemical additives) such as optical brightener ( optical brightening agent, fluorescent whitening agent) , UV absorber ( UV absorbent) , light stabilizer ( light stabilizing agent, UV stabilizer, UV stabilizing agent) , antioxidant, pigment.
Main Products:
Polymerization retarder: 701 ( 4-hydroxy-TMHPO, TEMPO)
Fluorescent whitening agent: OB, OB-1, KCB, FP-127, KS, NFW
UV absorbers: UV-0, 531( BP-12) , UV-9, UV-P, 326, 327, 328, 329( 5411) , UV-T, 234, 571, 320
Antioxidant : 1010, 1076, 168, 264, 1098, 2246, 300, 311, B102, DLTP, DSTP, B215, B225, B900
Light stabilizer: 622, 770, 944, 802
Pigments: red 122, red 254, violet 19, violet 23, yellow 110, yellow 138, titanium dioxide