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Benzotriazole Based Ultraviolet Absorbers

PowerSorb™ 928

2-(2H-benzotriazol-2-yl)-6-(1-methyl-1-phenylethyl)-4-(1,1,3,3-tetramethylbutyl)phenol.
Chemical Structure
Introduction / Features
PowerSorb™ 928 possesses low volatility, exceptional light absorbing characteristics and good compatibility.
Physical Properties
Chemical Name: 2-(2H-benzotriazol-2-yl)-6-(1-methyl-1-phenylethyl)-4-(1,1,3,3-tetramethylbutyl)phenol
CAS No.: 73936-91-1
EINECS No.: -
Formula: C29H35N3O
Molecular Weight: 442
Melting Point(°C): 109-113
Volatiles (%): Max.0.3
Color of Solution 460nm (%): Min.97
Color of Solution 500nm(%): Min.98
Appearance: Yellow Liquid
Ash (%): Max.0.05
Min. Purity: 98%


Applications
PowerSorb™ 928 can effectively protect the coating film from light loss, cracking, blistering, delamination and discoloration.
PowerSorb™ 928 can be added to varnish, coating and solid color paint. Llight stabilizer on the surface coating has the max. protective effect.
PowerSorb™ 928 is used as light stabilizer in plastic, rubber, dye, and coating to prevent the light decomposition with long-term exposure under the sunlight. PowerSorb™ 928 is one of substituted benzotriazoles which protect against ultraviolet radiation. PowerSorb™ 928 has high solubility which makes it particularly useful for stabilizing coatings.
Packings
PowerSorb™ 928 is supplied in net weight 25kg fiber drum with PE liner.
Technical Library
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