Product Name:

 UV 329

Technical Data Sheet of UV 329

Product Name                UV 329

Chemical name              

2-(2'-hydroxy-5-tert-octylphenyl)-1H-benzotriazole

CAS number                    3147-75-9

Molecular weight              323

Spcification                                          

1.APPEARANCE   OFF WHITE POWDER
 
2.CONTENT      99% MIN
 
3.M.P.              103-105.3
 
4.VOLATILE MATTER  0.5% MAX
 
5.ASH               0.05% MAX
 
6.TRANSMITTANCE   @ 440nm97% MIN

                                 @ 500nm98% MIN
 

Applications       A highly effective light stabilizer, it has a

broad UV absorption spectrum and low volatility. For PS,

polymethyl methacrylate, unsaturated polyester (UPE), rigid

PVC, polycarbonate, ABS resin, etc., esp. in clear products

or engineering plastics processed under high temperature. It

has synergetic effect if used with antioxidant, which can

raise heat and oxidization stabilities of the product. Usual

amount to use is 0.1%-1%.

Handling & Safety  Wash thoroughly after handling.

Remove contaminated clothing and wash before reuse. Use

with adequate ventilation. Avoid contact with eyes, skin, and

clothing. Keep container tightly closed. Avoid ingestion and

inhalation.