UV Absorber 329

Product Name

UV Absorber 329

Product Code

UV-329

CAS No.

3147-75-9

Chemical Name

Octrizole； 2-(2H-Benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol

Formula

C20H25N3O

Molecular Weight

323.43

Specification

Appearance：White to off-white crystalline powder or granule.

Melting Point：103-107℃

Loss on drying：0.5%Max

Ash：0.1%Max

Assay (GC)：99.0% Min.

Transmittance：≥96.0%（440nm）；

≥98.0%（500nm）

Packing

20kg/Carton or 20kg/Drum

Application

It is an excellent high-efficiency, aging-preventing agent, which can effectively absorb 270-380 nm UV light.    

Non-flammable, non-explosive, non-toxic, harmless to health. 

It almost does not absorb visible light, particularly applicable to colorless and light-colored products. It is suitable for polyester, rigid PVC, PS, PMMA, PC, ABS resin, etc.

It effects better in a transparent products and engineering plastics under high temperature processing. This product can also be used for polyolefin.