Off - white Powder / Granule Ultraviolet Absorbers , Benzotriazole UV Absorber

Off - white Powder / Granule Ultraviolet Absorbers , Benzotriazole UV Absorber

Quick Detail :

UV 329 is a UV absorber of the hydroxyphenylbenzotriazole class , which imparts out - standing light stability to plastics and other organic substrates .

Description :

1. Name : UV329
2. Chemical name : 2 - ( 2' - hydroxy - 5' - tert - octylphenyl ) - 1H - benzotriazole
3. CAS No. : 3147 - 75 - 9

UV328 exhibits strong absorbance in the 300 - 400nm region and minimum absorption in the visible region ( 400nm ) of the spectrum . The absorption maximum area is at 301nm and 343nm in chloroform solution .

Applications :

UV 328’s use level ranged between 0.1 and 1.0 % depending on the substrate and performance requirements of the final application . The product can be used alone or in the combination of other additives . It could particularly get a good performance in the combination of hindered amine light stabilizers such as LS 770 , LS 622 , LS 791 and so on .

Specifications :

Competitive Advantage :

TINUVIN 329 protects polymers from UV radiation and , helping to preserve the original appearance and physical integrity of molded articles , films , sheets and fibers during outdoor weathering .

Hongkun is one of the important manufacturers of UV328 in China with the same quality of BASF , and the application effect has been proved by many customers .