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Benzotriazole UV absorbers are excellent cost-effective UV absorbers that have balanced UV absorption bands from short wavelengths to long wavelengths. Benzotriazole UV absorbers have exceptional UV absorption from 300 to 380 nm and are commonly used to enhance the durability of various engineering plastics and polyolefins.

Benzotriazole UV absorbers, including PowerSorb 1000, PowerStab 109, PowerStab 111 and PowerStab 123, have good heat resistance, can be used at a relatively high processing temperature, and are widely used in occasions that require long-term use.

Benzotriazole UV absorbers are compatible with a wide variety of polymer systems and additives. These benzotriazole UV absorbers are effective against loss of gloss, cracking, blistering, and discoloration. When combined with hindered amine light stabilizers (HALS), both benzotriazole UV protection and cost performance can be improved, especially when stabilizing thin sheets.

Since 1989, TINTOLL has actively participated in the development of innovative products and application research, and currently has more than 100 specialty products to meet the diverse needs of customers. TINTOLL provides professional formulations for different composite materials. In addition, TINTOLL also provides customers with light stabilizer development services for special applications.

Types of Benzotriazole UV Absorber
PowerSorb™ 1000
CAS No. 2440-22-4
2-(2'-Hydroxy-5'-methylphenyl) benzotriazole.
PowerSorb™ 1130
CAS No. 104810-47-1; 104810-48-2; 25322-68-3
Mix.α-[3-[3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4hydroxyphenyl]-1-oxopropyl]-ω-hydroxypoly(oxo-1,2-ethanediyl).
PowerSorb™ 234
CAS No. 70321-86-7
2-[2-Hydroxy-3,5-di(1,1-dimethylbenzyl)phenyl]-2H-benzotriazole.
PowerSorb™ 320
CAS No. 3846-71-7
2-(2'-Hydroxy-3',5'-di-t-butylphenyl) benzotriazole.
PowerSorb™ 326
CAS No. 3896-11-5
'2-(2'-hydroxy-3'-t-butyl-5'-methylphenyl)-5-chlorobenzotriazole.
PowerSorb™ 327
CAS No. 3864-99-1
2-(2’-Hydroxy-3’,5’-di-t-butylphenyl)-5-chlorobenzotriazole.
PowerSorb™ 328
CAS No. 25973-55-1
2-(2´-hydroxy-3’,5’-di-t-amylphenyl)benzotriazole; 2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol.
PowerSorb™ 329
CAS No. 3147-75-9
2-(2'-hydroxy-5'-tert-octylphenyl) benzotriazole.
PowerSorb™ 360
CAS No. 103597-45-1
Bis[2-Hydroxy-5-t-octyl-3-(benzotriazol-2-yl)phenyl] methane.
PowerSorb™ 384-2
CAS No. 127519-17-9
3-(2H-Benzotriazolyl)-5-(1,1-di-methylethyl)-4-hydroxy-benzenepropanoic acid octyl esters.
PowerSorb™ 571
CAS No. 125304-04-3
2-(2h-benzothiazol-2-yl)-6-(dodecyl)-4-methylphenol.
PowerSorb™ 928
CAS No. 73936-91-1
2-(2H-benzotriazol-2-yl)-6-(1-methyl-1-phenylethyl)-4-(1,1,3,3-tetramethylbutyl)phenol.
PowerSorb™ 350
CAS No. 36437-37-3
2-(2H-Benzotriazol-2-yl)-4-(tert-butyl)-6-(sec-butyl)phenol.

What are Benzotriazole UV Absorbers?
Benzotriazole UV absorbers are UV polymer stabilizers used to protect polymers from UV-induced degradation. They work by absorbing UV radiation and dissipating the energy as heat. This helps the polymer retain its color, luster and physical properties.

Benzotriazole UV absorbers are used as an UV absorber additive in a variety of products, including: Polyolefin, polyester, styrene, ABS, PVC, oil-based cosmetics, sunscreen, shampoo, hairspray, woolen fabrics.

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