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| Light stabilizer 622 |
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| Poly-(N-B-hydroxyethyl-2,2,6,6-tetramethyl-4-hydroxy-piperidyl succinate) |
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| 65447-77-0 |
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It is widely used in polyethylene, polypropylene, polystyrene, olefin copolymer and polyester, soft PVC, polyurethane, metaformaldehyde and polyamine.
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Specification:
Appearance White crystal
Melting point, oC 70min
Volatile,% 0.5max
Ash,% 0.2max
Transmissivity 425nm 95%min, 500nm 98%min
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