Chemical name: 2- (2'-Hydroxy-3'-tert-butyl-5'-methylphenyl) -5-chlorobenzortriazole
CAS No.: 3896-11-5
Molecular formular: C17H18ClN3O
Molecular weight: 315.8
Appearance: Slightly yellow powder
Assay (HPLC),%: 99 min. Melting point, degree: 137-142
Ash, %: 0.1 max. Loss on Drying, %: 0.5 max. Transmittance, %: 460nm 93% min. 500nm 96% min.
UV ABSORBER HOSORB-326 has a wide range of indirect food approvals in polyolefin. It has a low volatility at high temperatures and high resistance to thermal degradation and can therefore be used without significant loss or decomposition in the polyolefin compounding and molding processes. It is especially suited for polyolefins and cold cured polyesters. It protects polymers from UV radiation helping to preserve the original appearance and physical integrity, especially for polyolefins and polyester resins.
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