Product Name: Light Stabilizer 622
Chemical Name:
Poly-(N--hydroxyethyl-2,2,6,6-tetramethyl-4-hydroxy-piperidyl succinate)
CAS No.: 65447-77-0
Molecular Formula: C15n+1H25n+4O4n+1N
Molecular Weight: 3100-4000
Chemical Structure:
Properties:
It is white or light yellow granule powder. The content of available nitrogen is 4.9%. Its softening temperature is 55~80℃. The relative density is 1.18(20℃). It is hindered amine type light stabilizer with high molecular weight. It is copolymer and has good process heat stability and good compatibility with resins. It is water-fast, and is effective to prevent the degradation of high polymer caused by light, heat and weather, water.
Technical Data:
Appearance | White to light yellow powder |
Softening point, ℃ | 50-70 |
Loss on drying, % | 0.5 max. |
Ash, % | 0.1 max. |
Light transmittance, %, 425nm | 93 min. |
500nm | 95 min. |
Applications:
It is widely used as light stabilizer for polyethylene, polypropylene, polyurethane, metaformaldehyde, polyamine and polyester elastomer, also in ABS and engineering plastics. It is approved to use in food contact packaging.
Packing: 25kg cardboard drum lined with plastic bags
Storage: Store in cool, dry and ventilated place, keep away from direct sunlight.
