China Suppliers > Tianjin Yuansu Chemical Reagent Co., LTD > UV absorber UV-2908
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- Region :China/Tianjin
- Tel : +86-22-83739603
- Fax : +86-22-23989438
- Email :sales@yuansu-reagent.com
- URL :www.yuansu-reagent.com/cpzs
- Add :No. 268, Yuliang Street, Dagang Street, Binhai New Area, Tianjin, China
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UV absorber UV-2908 67845-93-6
Category : Others
CAS NO : 67845-93-6 EC NO : 267-342-2 MF : C31H54O3 MW : 474.7587 Specification : 99% min Packing : 25kg 50kg drum or bag Product description : Appearance: White powder or crystalline powder； Assay：99%min by HPLC ； IR Identity: conform to standard； HNMR： conform to standard； carbon spectrum: conform to standard； Water by K. F.:0.5% max or as per the customer’s request； Loss on drying:0.5% max. or as per the customer’s request； use:UV-2908 (CAS No. 67845-93-6) is a hindered benzoate type light stabilizer, used for light stabilization treatment of polyolefin plastics such as PP and PE. Light Stabilization Effect: As an excellent light stabilizer, it has low volatility, minimal discoloration, good chemical stability, and resistance to acids and alkalis. It is suitable for providing antioxidant protection to polyolefin plastics like PP and PE through the free radical scavenging mechanism during thermal processing and temperature rise, thereby extending the service life of polymers. Application Fields: Suitable for polyolefin plastics such as polypropylene (PP) and polyethylene (PE). It can be used alone or in combination with benzophenone-type ultraviolet stabilizers and phosphite-type antioxidants to enhance the effect. UV2908 is a representative variety of benzoate light stabilizers, characterized by low discoloration, low volatility, acid and alkali resistance, and good compatibility. It exhibits antioxidant activity during thermal processing and temperature rise through the free radical scavenging mechanism, providing effective protection to polymers. It is applicable to PE films, flat filaments, injection-molded products, rotational molded products, flame-retardant products, TPO, PET, PBT, PC, soft PVC, fragrance and flavoring agents, candles, etc. It can be used alone or in conjunction with benzophenone-type UV absorbers (such as UV-531, etc.) or phosphite antioxidants, exhibiting excellent synergistic effects. Uses : Purpose: This product is a hindered benzoate type light stabilizer, suitable for polyolefin plastics such as PP and PE. The specific application depends on the actual substrate used and performance requirements. It can be used alone or in combination with Synonyms : Hexadecyl 3,5-di-tert-butyl-4-hydroxybenzoate;3,5-di-t-Butyl-4-Hydroxybenzoic Acid, Hexadecyl Ester;UV-2908;Hexadecyl-3,5-bis-tert-butyl-4-hydroxybenzoate;Hexadecyl 3,5-Bis-Tert-Butyl-4-Hydroxybenzoate;3,5-Di-(t-Butyl)-4-hydroxy benzoic acid, hexadecyl ester;UV absorber UV-2908; Molecular Structure : 
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UV absorber UV-2908