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M Chemical GUARD DOGâ„¢ UV234 Light Absorber, Benzotriazole Derivative

Category Other Engineering Material , Additive/Filler for Polymer
Manufacturer M Chemical Company, Inc.
Trade Name GUARD DOG™
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
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Material Notes:
GUARD DOG™ UV234 UV absorber is a low volatile benzotriazole based UV absorber which is highly effective in polymers that are processed at high temperature (decomposition temperature > 350°C).Applications: Extremely effective in PP, SBS, footwear, SEBS, acetal, acrylic, PET, PMMA, PBT, PC and is recommended for thin section and fiber applications suitable for food contact applications.Performance Benefits:Strong absorption of UV radiation in the 300 - 400 nm range. The absorption maxima are 302 nm and 343 nmLow initial color and low volatility during high processing temperatures and has good extraction resistanceTypical Properties:Free flowing pale yellow powderSolubility (g/100g @ 25°C): Acetone - 2, Benzene - 10, CHCl3 - 35, MeCl - 34, MEK - 13, Toluene 20
Physical Properties Metric English Comments
Specific Gravity 1.22 g/cc

@Temperature 20.0 °C
1.22 g/cc

@Temperature 68.0 °F
Molecular Weight 447.58 g/mol
447.58 g/mol
Vapor Pressure 2.00e-15 bar
1.50e-12 torr
Thermal Properties Metric English Comments
Melting Point 137 - 141 °C
279 - 286 °F
Flash Point >= 150 °C
>= 302 °F
Ignition
Optical Properties Metric English Comments
UV Transmittance >= 95 %

@Thickness 0.460 mm
>= 95 %

@Thickness 0.0181 in
>= 97 %

@Thickness 0.500 mm
>= 97 %

@Thickness 0.0197 in
Descriptive Properties Value Comments
CAS Number 70321-86-7
Molecular Formula C30H29N3O3
Name 2-[2-Hydroxy-3, 5-di(1, 1-dimethylenezyl)-phenyl] 2H-benzotriazole
Recommended Dosage 0.15 - 0.60%
depending upon the substrate and performance requirements
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