Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Addivant ULTRANOX 627 Antioxidant

Addivant ULTRANOX 627 Antioxidant is a high-performance phosphite-based stabilizer from Addivant’s ULTRANOX series, designed for polyolefins and engineering plastics. It offers exceptional melt stability, color retention, and synergistic antioxidant activity with hindered phenols—ideal for demanding extrusion and injection molding applications.
  • addivant ultranox 627 antioxidant_cfcb29af
  • addivant ultranox 627 antioxidant_cfcb29af

Features Of Addivant ULTRANOX 627 Antioxidant

  1. High-performance phosphite antioxidant offering exceptional melt stability for polyolefins during high-temperature processing.

  2. Excellent hydrolytic stability, minimizing degradation in humid or aqueous processing environments.

  3. Low volatility and low extractability, ensuring long-term stabilization and compliance with food-contact regulations.

  4. Synergistic with hindered phenols (e.g., Irganox 1010), enabling optimized primary/secondary antioxidant systems.

  5. Non-staining and colorless, preserving clarity and hue in sensitive optical and packaging applications.

Typical Applications Of Addivant ULTRANOX 627 Antioxidant

  1. Polypropylene (PP) fibers and nonwovens for medical and hygiene products.

  2. Blown and cast polyethylene (PE) films used in food packaging and agricultural mulch.

  3. Injection-molded PP automotive interior components requiring heat resistance and low odor.

  4. Rotomolded HDPE tanks and containers exposed to elevated thermal cycling.

  5. Recycled polyolefin compounds where processing stability and reversion control are critical.

Specifications Of Addivant ULTRANOX 627 Antioxidant

Chemical TypeTris(2,4-di-tert-butylphenyl) phosphite
Product FormFree-flowing white to off-white crystalline powder
AppearanceCrystalline solid, free of visible impurities
Melting Point195–205 °C (determined by DSC)
Assay (by HPLC)≥ 98.0%
Residue on Ignition≤ 0.1%
Heavy Metals (as Pb)≤ 5 ppm
Primary ApplicationsPolyolefins (PP, PE), engineering plastics, recycled resins


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