High-performance phosphite antioxidant offering exceptional hydrolytic stability in demanding processing conditions.
Excellent melt stabilization for polyolefins during extrusion, injection molding, and blow molding.
Low volatility and minimal odor—ideal for applications requiring high thermal stability and low extractables.
Synergistic with hindered phenol antioxidants (e.g., ADK STAB AO-50, AO-60) to enhance long-term oxidative resistance.
Complies with FDA 21 CFR §178.2010 and EU Regulation (EC) No 10/2011 for food-contact plastics.
Polypropylene (PP) fibers and nonwovens for medical and hygiene products.
Automotive interior parts including PP-based dashboards, door trims, and under-hood components.
Food packaging films and containers made from polyolefin resins.
Rotomolded tanks and industrial containers requiring extended service life at elevated temperatures.
Recycled polyolefin compounds where enhanced stabilization against thermo-oxidative degradation is critical.
| Chemical Type | Tris(2,4-di-tert-butylphenyl) phosphite |
| Product Form | White to off-white crystalline powder |
| Appearance | Free-flowing granular solid |
| Melting Point | 195–205 °C (determined by DSC) |
| Assay (by HPLC) | ≥ 99.0% |
| Acid Value | ≤ 0.1 mg KOH/g |
| Moisture Content | ≤ 0.1 wt% |
| Primary Applications | Polyolefins (PP, HDPE, LDPE), engineering plastics, recycled polymer systems |
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E-mail: wangxingqiang@ericwchem.com
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