product name: Light stabilizer UV-622
CAS NO.：65447-77-0
Product type：HALSChemical Name：Poly (4-hydroxy-2,2,6,6-tetramethyl-1-piperidine ethanol-alt-1,4-butanedioic acid)
Formula：H[C15H25O4N]nOCH3
Molecular Weight：＞2500
Specification
Property |
Typical value |
|
Appearance |
white or pale yellow powder |
|
Transmittance |
425nm |
≥ 97% |
500nm |
≥98% |
|
Content(HPLC) |
≥99.0% |
|
Volatile |
≤0.5% (105ºC. 2hrs) |
|
Ash |
≤0.1% |
|
Solubility
Soluble in acetone, toluene, xylene, ethyl acetate, ethanol, chloroform ;Slightly soluble in methanol;Insoluble in water
Application
- UV 622 is a high molecular HALS with low volatility, migration resistance, high temperature resistance etc, has synergetic effect with antioxidants and UV absorbers.
- HALS 622 is highly effective in PP, PE, EVA, PS, PA, PU, PVC, etc
Packing
Cautions：Avoid direct sunlight, moisture, high temperature.Testing required before usePack & Store：25kg carton inner with plastic bag or as customer's requirement
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