Synergistic blend of phenolic and phosphite antioxidants to protect polymers both during processing and long term aging.
partner icon image
Fulfilled by ChemPoint


Product Overview
ANOX™ BB021 Powder is a solid, synergistic blend of one part phenolic (ANOX® 20) to two parts phosphite (ALKANOX® 240) antioxidants. This binary blend provides excellent protection for polymers during both processing and long term aging.
Product Specifications
Appearance: White to off-white powder
ALKANOX™ 240 Content: 64.2-69.2%
ANOX™ 20 Content: 30.8-35.8%
Clarity of Sol (10% w/v Toluene): Clear
Tran. 425 nm (10% w/v Toluene): ≥95.0
Tran. 500 nm (10% w/v Toluene): ≥97.0
Primary Chemistry: Blend of Phenolic and Phosphite Antioxidants
Features & Benefits
Fewer additives to dose properly
Low volatility allows for higher processing temperatures
Excellent resistance to extraction from polymer compounds
Available in powder and granular forms
Problems Solved
High volatility of primary antioxidant blends in high-temperature processes
Decomposition of thermoplastics and low protection from oxidation and aging
Availability of phosphite and phenolic antioxidant blend in powder or granular for easy use and mix
Extraction of antioxidants during the compounding process
Used in a wide variety of thermoplastic polymers such as polyolefins, polycarbonates, ABS, and polyesters