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

Rianlon U-pack B 501 W Antioxidant

Rianlon U-pack B 501 W is a high-performance liquid antioxidant formulated for polyolefins and elastomers. Featuring synergistic hindered phenol and phosphite components, it delivers excellent thermal stability and melt protection during processing. Its water-white appearance and low volatility ensure easy handling and consistent dispersion. Widely used in PP, PE, and TPO applications requiring long-term aging resistance and color retention.
  • rianlon u pack b 501 w antioxidant_5c461d15
  • rianlon u pack b 501 w antioxidant_5c461d15

Features Of Rianlon U-pack B 501 W Antioxidant

  1. High-performance synergistic blend of hindered phenolic and phosphite antioxidants for superior thermal and oxidative stability.

  2. Water-dispersible formulation enabling easy incorporation into aqueous-based polymer systems without solvent use.

  3. Low volatility and excellent migration resistance, ensuring long-term protection in demanding processing conditions.

  4. Halogen-free and REACH-compliant, supporting sustainable manufacturing and regulatory compliance across global markets.

  5. Optimized for low-color development, preserving clarity and aesthetic quality in transparent or light-colored polymers.

Typical Applications Of Rianlon U-pack B 501 W Antioxidant

  1. Polyolefins (PP, HDPE, LDPE) for injection-molded automotive parts and thin-walled packaging.

  2. Aqueous polymer dispersions used in coatings, adhesives, and latex-based industrial formulations.

  3. Fibers and nonwovens requiring consistent melt stability during high-speed spinning processes.

  4. Recycled polyolefin streams where enhanced stabilization against thermo-oxidative degradation is critical.

  5. Medical-grade thermoplastic elastomers (TPEs) requiring FDA-supportive stabilizer profiles.

Specifications Of Rianlon U-pack B 501 W Antioxidant

Chemical TypeHindered phenol + phosphite synergistic blend
Product FormFree-flowing white to off-white water-dispersible granules
AppearanceUniform granular solid, no visible dust or agglomerates
Primary ApplicationsPolyolefins, aqueous polymer systems, recycled resins, TPEs
Key FeaturesWater dispersibility, halogen-free, low volatility, non-staining
BenefitsExtended processing window, improved color retention, simplified handling vs. liquid additives
Regulatory StatusREACH registered; compliant with EU Directive 2002/72/EC for food-contact plastics (subject to end-use evaluation)
Storage ConditionsStore in cool, dry place below 30°C; keep container tightly closed


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