Light stabilizer 622 for PP,, PE
| Chemical name | Poly [1-(2'-Hydroxyethyl)-2,2,6,6-Tetramethyl-4-Hydroxy-Piperidyl Succinate] |
| Molecular formula | H[C15H25O4N]nOCH3 |
| Molecular weight | 3100-5000 |
| CAS NO. | 65447-77-0 |
Chemical structure
Specification
| Appearance | White coarse powder or yellowish granular |
| Melting range | 50-70°Cmin |
| Ash | 0.05% max |
| Transmittance | 425nm: 97%min 450nm: 98%min (10g/100ml methyl benzene) |
| Volatility | 0.5% max |
Application
Light Stabilizer 622 belongs to the newest generation of polymeric Hindered Amine Light Stabilizer, which has excellent hot processing stability. Terrific compatibility with resin, satisfying tractability against water and extreme low volatility and migratory. Light stabilizer 622 can be applied to PE.PP. Polystyrene, ABS, polyurethane and polyamide etc, optimum effects are obtained when used with antioxidants and UV-absorbers. Light stabilizer 622 is one of the light stabilizers that are sanctioned by FDA to be used in food packages. Reference dosage in PE agricultural film: 0.3-0.6%.
Packing and Storage
Package: 25KG/CARTON
Storage: Stable in property, keep ventilation and away from water and high temperature.