High-performance phosphite-based secondary antioxidant with excellent hydrolytic stability.
Effective in suppressing color formation and viscosity increase during high-temperature polymer processing.
Synergistic performance when combined with primary phenolic antioxidants (e.g., ADK STAB AO-20, AO-50).
Low volatility and good compatibility with polyolefins, engineering plastics, and elastomers.
Meets stringent regulatory requirements for food-contact applications under FDA 21 CFR §178.2010 and EU Directive 2002/72/EC.
Polypropylene (PP) fibers and nonwovens for medical and hygiene products.
Automotive interior components including PP and TPO trim parts.
Food-grade packaging films and containers made from polyolefins.
Blown and cast polyethylene (PE) films for agricultural and industrial use.
Thermoplastic elastomer (TPE) compounds requiring long-term thermal stability.
| Chemical Type | Tris(2,4-di-tert-butylphenyl) phosphite |
| Product Form | Free-flowing white granules |
| Appearance | White to off-white granular solid |
| Melting Point | 195–205 °C (determined by DSC) |
| Assay (by HPLC) | ≥ 99.0% |
| Moisture Content | ≤ 0.1% (by Karl Fischer titration) |
| Heavy Metals (as Pb) | ≤ 5 ppm |
| Primary Applications | Polyolefins, engineering thermoplastics, elastomers |
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E-mail: wangxingqiang@ericwchem.com
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