Hindered Amine Light Stabilizers(HALS)
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| PowerStab™ 622
Dimethyl succinate polymer with 4-hydroxy-2,2,6,6-tetramethyl-1-piperidine ethanol .
Synonym: Poly(4-hydroxy-2,2,6,6-tetramethyl-1-piperidine ethanol-alt-1,4-butanedioic acid);
Butanedioic acid, 1,4−dimethyl ester, polymer with
4−hydroxy−2,2,6,6−tetramethyl−1−piperidineethanol
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PowerStab™ 622 is a polymeric hindered amine light stabilizer (HALS) which is effective in a broad range of polymers and applications. It is Non-discoloring, low volatility and excellent resistance to migration, low basicity for reduced interactions with pigments and other stabilizers, and extensive food contact clearances.
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| Chemical Name: |
Dimethyl succinate polymer with 4-hydroxy-2,2,6,6-tetramethyl-1-piperidine ethanol |
| CAS No.: |
65447-77-0 |
| EINECS No.: |
n.a |
| Formula: |
(C15H25NO4)n |
| Molecular
Weight: |
3100-4000 |
| Melting Point(°C): |
50-70 |
Specific Gravity[20°C]: |
1.22 |
| Vapor Pressure[20°C, Pa]: |
2.5E-6 |
| Volatiles(%) |
Max.0.5 |
| Color of Solution 425nm (%): |
Min.98 |
| Color of Solution 500nm (%): |
Min.99 |
| Ash(%): |
Max.0.1 |
| Appearance: |
White to yellow granular powder |
| Solubility (20°C) |
% w/w |
| Acetone: |
4 |
| Chloroform: |
>40 |
| Ethyl acetate: |
3 |
| Ethanol: |
0.08 |
| n-Hexane: |
<0.01 |
| Methanol: |
0.05 |
| Methylene Chloride: |
>40 |
| Toluene: |
15 |
| Water: |
<0.01 |
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PowerStab™ 622 is particularly useful in PE applications (injection molding, rotational molding, film, and tape), EVA, PP fibers, polyurethanes, polyacetals, elastomers, adhesives, and sealants. It is also an excellent light stabilizer for systems containing carbon black.
Typical addition levels for PowerStab™ 622 range from 0.05-1.5%, depending upon the application. The exact level to be used in any particular application should be determined in an appropriate testing program.
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PowerStab™ 622 is supplied in 25kg net/carton.
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