UV Absorbers(UVA)
ADK STAB LA series (UV Absorbers)
The specific gravity (25℃/25 ℃), viscosity (25℃) and melting point of properties are representative values. The same below.
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"ADK STAB" is not used as a trademark in USA.
ADK STAB LA-24
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Properties | Pale yellow powder M.P.139-142℃ M.W.447 |
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|---|---|---|---|
| Packaging | B／G 15kg |
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| Characteristics and applications | ・Excellent thermal stability and low volatility, compared to other benzotriazol-type UVAs. | ||
| IUPAC | 2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol | ||
ADK STAB LA-29
 |
Properties | Pale yellow powder M.P.102-106℃ M.W.323 |
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|---|---|---|---|
| Packaging | B／G 20kg |
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| Characteristics and applications | ・Less initial coloration. ・Low volatility. ・Good compatibility with many polymers. |
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| IUPAC | 2-(2H-Benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol | ||
ADK STAB LA-31RG / ADK STAB LA-31G
 |
Properties | Light yellow powder (G: granule) M.P.194-200℃ M.W.659 |
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|---|---|---|---|
| Packaging | C／S 15kg LA-31G：B／G 20kg |
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| Characteristics and applications | ・Very low volatility due to high M.W. ・Excellent thermal stability. ・Excellent long term retention in the polymer. ・For engineering plastics requiring high processing temperatures. |
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| IUPAC | 2,2'-Methylenebis[6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol] | ||
ADK STAB LA-32
 |
Properties | Pale yellow powder M.P.127-132℃ M.W.225 |
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|---|---|---|---|
| Packaging | B／G 20kg |
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| Characteristics and applications | ・Strong UV absorbe. ・Less initial coloration. ・For PVC, PS, PU, Acrylic polymers,elastomers, etc. |
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| IUPAC | 2-(2H-Benzotriazol-2-yl)-p-cresol | ||
ADK STAB LA-36 / ADK STAB LA-36RG
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Properties | Pale yellow powder(RG: granule) M.P.138-141℃ M.W.315 |
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|---|---|---|---|
| Packaging | B／G 20kg |
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| Characteristics and applications | ・Common benzotriazole-type UVA. ・Excellent absorption in longerwavelength. ・UV regions, compared to other benzotriazole-type UVAs. |
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| IUPAC | 2-(5-chloro-2H-benzotriazol-2-yl)-6-tert-butyl-4-methylphenol | ||
ADK STAB LA-46
 |
Properties | Light yellow powder M.P.106-108℃ M.W.512 |
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|---|---|---|---|
| Packaging | |||
| Characteristics and applications | ・High absorption from 280nm to 300nm wavelength. ・Excellent thermal stability and discoloration resistance against heat. ・Low volatility. |
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| IUPAC | 2-(4,6-Diphenyl-1,3,5-triazin-2-yl)-5-[2-(2-ethylhexanoyloxy)ethoxy]phenol | ||
ADK STAB 1413
 |
Properties | Pale yellow powder M.P.47-49℃ M.W.326 |
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|---|---|---|---|
| Packaging | C／S 10kg |
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| Characteristics and applications | ・Benzophenone-type UVA. ・Less initial coloration. ・High absorption in short-wavelength. ・Good compatibility with many polymers. |
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| IUPAC | [2-hydroxy-4-(octyloxy)phenyl](phenyl)methanone | ||