Hot Selling High Quality Hals 622 CAS 65447-77-0 Light Stabilizer 622
CAS NO.: 65447-77-0
Chemical Name:Poly (4-hydroxy-2,2,6,6-tetramethyl-1-piperidine ethanol-alt-1,4-butanedioic acid)
Formula:H[C15H25O4N]nOCH3
Structure:
Molecular Weight:>2500
Appearance:White coarse powder or light-yellow granules
Melting Range:50-70ºC
Volatile Matter:≤0.5%
Relative Density:1.18g/cm3
Weight Loss Point:350ºC(5.0%)
Light Transmittance:425nm: ≥93%; 450nm: ≥95%
Ash Content:≤0.1%
Solubility:Soluble in acetone, toluene, xylene, ethyl acetate, ethanol, chloroform ;Slightly soluble in methanol;Insoluble in water
Features and Application Area: 622 is a high molecular HALS with low volatility, migration resistance, high temperature resistance etc, has synergetic effect with antioxidants and UV absorbers. it is highly effective in PP, PE, EVA, PS, PA, PU, PVC, etc.
The light stabilizer 622 is a polymer light stabilizer with multiple functional groups. It can be used for low-density polyethylene film, polypropylene tape, EVA film, ABS, PP fiber PE, polyformaldehyde, polyamide, polyurethane, PVC, PVC blend material Chemicalbook, polystyrene, rubber and viscose. It can use ultraviolet absorbent because of its special structure and large molecular weight (3000). It can also be used in film and fiber. It can also be used as antioxidant and heat stabilizer of polymer, and the dosage of agricultural film is 0.2%.
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