High-performance antioxidants
for polymer stabilization
Clariant's antioxidant portfolio provides polymer stabilization solutions for polymers such as polyethylene (PE), polypropylene (PP), and even recycled polyolefins, protecting against oxidative degradation caused by heat, oxygen, and processing stress. Our Hostanox™ and AddWorks™ product lines offer primary antioxidants, secondary antioxidants, and specialized stabilizers to protect polymers throughout their lifecycle – from processing to end-use applications. As regulatory requirements evolve and demand for more sustainable materials grows, our high-performance antioxidants meet strict safety standards while providing exceptional performance in packaging, automotive, construction, medical, and recycling applications.
Next-generation antioxidant for polyolefins: AddWorks™ LXR 548
Traditional phenolic antioxidants have long protected polypropylene medical devices during manufacturing and use. However, increasing regulatory pressure addresses concerns that these compounds can decompose during sterilization, potentially migrating from plastics into sensitive applications, raising safety questions for sensitive medical applications.
Clariant's new AddWorks LXR 548 is a breakthrough phenol-free antioxidant that matches the performance of traditional phenolic systems. Specifically developed for sensitive medical, hygiene, pharmaceutical and sterilization-resistant applications, this innovative stabilizer effectively reduces yellowing in polyolefin parts, maintaining excellent color stability even after gamma radiation and thermal treatment. With superior processing stability, excellent thermal protection, and compliance with stringent regulatory requirements, AddWorks LXR 548 enables manufacturers of syringes, medical bottles, non-woven materials, and other sensitive polyolefin articles to meet both aesthetic and performance standards.
Key benefits
- Phenol-free solution
- Improved aesthetic properties of the final PP article
- No trade-off on processability
- High resistance to treatments
- Excellent thermal stability
- Complies with strict regulatory requirements
Our antioxidants portfolio
Primary antioxidants
- Hostanox™ O 3 – Antioxidant based on hindered phenolics for water pipes, washing machines, rotomolding, swimwear, and synthetic fibers
Secondary antioxidants
- Hostanox™ P-EPQ – Phosphorus-based chemistry providing processing stabilization for film production, injection molding, and any extrusion processing
- Hostanox™ SE 10 – Sulphur-based antioxidant providing polyolefins with long-term thermal stability, e.g. in automotive, white goods, or filled polypropylene systems
- Hostanox™ OSP 1 – Metal deactivator and 3-in-1 antioxidant preventing degradation in polyolefins in contact with metal, e.g. electrical cables, wire insulation, pipes, and other metal-contact applications
- AddWorks™ LXR 568 – High-performance antioxidant providing outstanding color protection and excellent melt flow stabilization
Processing stabilization solutions
- AddWorks™ LXR 548 – Phenol-free antioxidant for polyolefins used in medical devices, pharmaceutical packaging, hygiene products, and sterilization-resistant applications
- AddWorks™ PKG 906 Circle – Enabling up to 30% recycled content in polyolefin films, flexible packaging, and post-production waste recycling
Our antioxidants portfolio
Find out more about our solutions for the plastics industry
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