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

Rianlon RIANOX 259 Antioxidant

Rianlon RIANOX 259 Antioxidant is a high-performance hindered phenolic antioxidant designed for polyolefins, elastomers, and engineering plastics. It offers exceptional thermal stability, low volatility, and synergistic effects with phosphites. Widely used in PP, PE, and TPO applications to prevent oxidative degradation during processing and long-term service life.
  • rianlon rianox 259 antioxidant_ad9abe87
  • rianlon rianox 259 antioxidant_ad9abe87

Features Of Rianlon RIANOX 259 Antioxidant

  1. High-performance hindered phenolic antioxidant with excellent thermal and oxidative stability.

  2. Low volatility and minimal migration, ensuring long-term protection in demanding processing conditions.

  3. Compatible with a broad range of polymers including polyolefins, styrenics, and engineering thermoplastics.

  4. Non-staining and low odor—ideal for applications requiring high aesthetic and sensory performance.

  5. Effective at low dosage levels (0.1–0.5 wt%), offering cost-efficient stabilization.

Typical Applications Of Rianlon RIANOX 259 Antioxidant

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

  2. Polyethylene (PE) blow-molded containers and thin-gauge films.

  3. Automotive interior components exposed to elevated temperatures and UV stress.

  4. Food-contact packaging materials compliant with FDA 21 CFR §178.2010 and EU Regulation (EC) No 10/2011.

  5. Recycled polyolefin compounds requiring robust reprocessing stability.

Specifications Of Rianlon RIANOX 259 Antioxidant

Chemical TypeHindered phenol
Product FormFree-flowing white to off-white crystalline powder
AppearanceWhite to light beige granules or fine crystals
Melting Point120–125 °C
Assay (by HPLC)≥ 99.0%
Volatile Matter (105 °C, 2 h)≤ 0.3%
Ash Content≤ 0.05%
Primary ApplicationsPolyolefins, styrenics, elastomers, and recycled polymer systems


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