Highly effective secondary antioxidant that synergizes with primary phenolic antioxidants to enhance long-term thermal stability.
Excellent hydrolytic stability and low volatility, ensuring consistent performance during high-temperature polymer processing.
Low discoloration tendency—preserves polymer clarity and color integrity in sensitive applications such as packaging films and medical tubing.
Compatible with polyolefins including PP, HDPE, and LDPE, as well as engineering thermoplastics like ABS and styrenics.
Meets FDA 21 CFR §178.2010 for indirect food contact applications when used at approved levels.
Polypropylene (PP) fibers and nonwovens for hygiene and filtration products.
Blown and cast polyethylene films used in food packaging and agricultural mulch.
Automotive interior components requiring UV and heat resistance, including dashboards and trim.
Medical-grade polyolefin tubing and syringes where biocompatibility and clarity are critical.
Rotomolded tanks and containers exposed to prolonged outdoor service conditions.
| Chemical Type | Dialkyl sulfide-based secondary antioxidant (Distearyl thiodipropionate) |
| Product Form | Free-flowing white to off-white crystalline powder |
| Appearance | Crystalline granules or fine powder |
| Molecular Weight | 649.1 g/mol |
| Melting Point | 53–57 °C |
| Assay (by HPLC) | ≥ 98.0% |
| Solubility | Soluble in chlorinated hydrocarbons, aromatic solvents, and hot aliphatic hydrocarbons; insoluble in water |
| Primary Applications | Polyolefins, styrenics, elastomers, and thermoplastic vulcanizates (TPVs) |
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China