|
| UVA-6 |
Type: Benzotriazole |
| Chemical Name:2-(2¨-Hydroxy-5¨-tertoctylphenyl ) benzotriazole |
| Trade Name: Tinuvin 329, Lowilite 29, Cyasorb UV-5411 |
| CAS: [3147-75-9] |
| Formula: C20H25N3O |
| M.W.: 323.44 |
| Introduction: UVA-6 is a highly effective light stabilizer for variety of plastics and other organic substrates. It exhibits strong absorbance in the 300-400nm region and minimal absorption in the visible region 400nm min. |
| Specification: |
Pure |
Technical |
Crude |
| Appearance: |
white-off powder |
white-off powder |
white-off powder |
| M.P. (≧): |
104-106 |
105-105 |
102-106 |
| Assay (%): |
99.5min. |
99min. |
98min. |
| Loss on drying (%): |
0.5max. |
0.5max. |
0.5max. |
| Ash (%): |
0 05max. |
0.1max.. |
0.2max. |
| Transmittancy (%): |
440nm: 98min.
500nm: 99min. |
93min.
95min |
|
|
| Benefits: |
| Low cost; Low color contribution; Exhibits synergy with HALS; Excellent solubility & compatibility with high solids coatings formulations. Has better solubility & compatibility than UVA-1 (Tinuvin P ). |
| Uses: |
| 1:Any application where initial color must be low. Has lower color than UVA-5 (Tinuvin 328 ). |
| 2:Ambient temperature air dry systems, for example, architectural coatings, maintenance coatings, wood coatings. Acrylics varnishes, lacquers & Alkyds. |
| 3:Ambient temperature air dry 2K polyurethanes systems, for example, automotive refinish coatings. |
| 4:Forced air dry systems, for example, 2K polyurethanes coatings (Typically 800C for 0.5hr.). |
| 5:Manufacture UVA-8 (Tinuvin 360 or Mixxim BB/100, Lowilite 36 etc.) from crude UVA-6. |
| Packaging: 25Kgs net in fibre drum. Crude in PP-PW bag. |
