High molecular weight phosphite antioxidant offering exceptional hydrolytic stability.
Excellent processing stability for polyolefins during extrusion, injection molding, and blow molding.
Synergistic performance when combined with hindered phenolic antioxidants (e.g., Irganox 1010).
Low volatility and minimal plate-out, ensuring clean operation in high-temperature polymer processing.
Non-staining and non-discoloring—preserves clarity and color integrity in sensitive applications.
Polypropylene (PP) fibers and spunbond nonwovens.
Polyethylene (PE) films, including blown and cast grades for packaging.
Automotive interior components requiring long-term thermal aging resistance.
Food-contact compliant polyolefin containers and closures.
Medical-grade polypropylene devices subjected to gamma or steam sterilization.
| Chemical Type | Tris(2,4-di-tert-butylphenyl) phosphite |
| Product Form | White crystalline powder |
| Appearance | Free-flowing, odorless granules or fine powder |
| Melting Point | 190–195 °C |
| Assay (by HPLC) | ≥ 99.0% |
| Loss on Drying | ≤ 0.1% |
| Heavy Metals (as Pb) | ≤ 5 ppm |
| Primary Applications | Stabilizer for polyolefins, especially PP and HDPE |
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E-mail: wangxingqiang@ericwchem.com
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