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Polymer Additives
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Technical Datasheet | Supplied by SI Group
WESTON® 501 is a blend of trisnonylphenyl phosphite and octadecyl 3, 5 di-tert-butyl-4-hydroxyhydrocinnamate. Acts as an antioxidant. In most polymers, WESTON® 501 stabilizer blend improves color and inhibits degradation of molecular weight during recovery, drying, compounding, processing and end use. Eliminates pre-blending of antioxidants, minimizes risk of compounding errors and variability.
Product Type
Antioxidants > Blends
Chemical Composition
Blend of Trisnonylphenyl Phosphite and Octadecyl 3, 5 di-tert-butyl-4-hydroxyhydrocinnamate
CAS Number
26523-78-4, 2082-79-3
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