CAS · 2403-88-5
Product Overview
2,2,6,6-Tetramethyl-4-piperidinol is a high-purity catalysts-auxiliary-agent supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.
Product Specifications
| Appearance: | White crystalline solid |
|---|---|
| Light transmittance: | 425nm: 98.5% min |
| 500nm: 99% min | |
| Melting point: | 128-132 °C |
| Water content: | 0.05% max |
| Ash: | 0.1% max |
| Chroma: | 10 max |
| TAA residual: | 0.05% max |
| Purity: | 99.9% min |
Applications
1. Precursor for Hindered Amine Light Stabilizers (HALS)
Widely used as a key intermediate in the synthesis of HALS compounds.
HALS are highly effective stabilizers that protect polymers against degradation from UV radiation and heat.
These stabilizers are critical in extending the lifespan of plastics exposed to sunlight.
2. Polymer Stabilization
Incorporated into plastics such as polyolefins (PE, PP), polyesters, polyurethanes, PVC, and coatings to inhibit photo-oxidative degradation.
Helps prevent discoloration, loss of mechanical strength, and surface cracking.
3. Coatings and Paints
Used in the formulation of UV-resistant coatings and paints, enhancing durability and maintaining appearance under sunlight.
4. Adhesives and Sealants
Added to adhesives and sealants to improve weather resistance and extend functional life.
Benefits
Excellent UV Stabilization: As a HALS precursor, contributes to outstanding light and thermal stability of polymers.
Low Volatility and High Compatibility: Integrates well into polymer matrices without volatilizing or blooming.
Inhibits Free Radical Degradation: HALS derived from this compound effectively scavenge free radicals generated by UV exposure.
Enhances Product Lifespan: Significantly increases outdoor durability of plastics and coatings.
Conclusion
2,2,6,6-Tetramethyl-4-piperidinol (CAS 2403-88-5) is a critical intermediate in the production of hindered amine light stabilizers (HALS), which are essential for protecting polymers and coatings from UV-induced degradation. Its use improves the durability, appearance, and mechanical properties of materials exposed to sunlight, making it invaluable in plastics, coatings, adhesives, and sealants industries.
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