Light Yellow Low volatility Ultraviolet Absorbers 326 with CAS No.
3896 - 11 – 5
Quick Detail :
UV 326 is a UV absorber of the hydroxyphenylbenzotriazole class ,
which imparts out - standing light stability to plastics and other
organic substrates .
- Name : UV326
- Chemical name : 2 - ( 2’ - Hydroxy - 3’ - Tert - Butyl - 5’ -
Methylphenyl ) - 5 - Chlorobenzotriazole
- CAS No. : 3896 - 11 - 5
- Function : Low volatility , Exceptional light absorbing
characteristics and good compatibility
TINUVIN 326 has a wide range of indirect food approvals in
polyolefins . 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 .
In the use for the UV protection of polyester resins , TINUVIN 326
does not form colored complexes with the metallic salts used for
the curing process of these resins .
It is recommended to use TINUVIN 326 with a HALS type
lightstabilizer system for best results . The recommended
concentrations range for PP applications from 0.1 - 0.5% , for PE
applications from 0.1% to 0.4% .
The recommended levels for normal polyester resins range from 0.2%
to 0.3% , while for chlorinated, flam retardant polyeste resins,
the recommendation is 0.5% .
|Appearance||Light Yellow Powder|
|Assay (GC)||99% min|
|Transmittance||460nm 95.0% min|
|500nm 98.0% min|
Competitive Advantage :
TINUVIN 326 is especially suited for polyolefins and cold cured
Hongkun is one of the important manufacturers of UV326 in China
with the same quality of BASF , and the application effect has been
proved by many customers .