Light Stabilizer 622
Chemical Name: Butanedioic acid polymer with(4-hydroxy-2,2,6,6-tetramethyl- 1-piperidineethanol)
Molecular Formula: C15n+1H25n+4O4n+1N
CAS NO. 70198-29-7
Structural Formula: 
Properties:
It is white or light yellow grain solid. The content of available nitrogen is 4.9%. Its softening temperature is 55~80°C. The relative density is 1.18(20°C). The heat loss of 1% is 275°C and 10% is 325°C. This product is an oligomer with good process heat stability and has good compatibility with resin. It is water-fast, and is effective to prevent the degradation of high polymer caused by light, heat and weather, water.
Solubility /(20)
|
Solvent |
Solubility |
|
hexyl hydride |
<0.01 |
|
toluene |
15 |
|
acetone |
4 |
|
ethyl acetate |
3 |
|
chloroform |
>40 |
|
methyl chloride |
>40 |
|
carbinol |
0.05 |
|
water |
<0.01 |
Toxicity:Can be used in plastic of contact food.
Uses:
The product is widely used in polyethylene, polypropylene, polystyrene, olefin copolymer and polyester, soft PVC, polyurethane, metaformaldehyde and polyamide.