OB-1 Fluorescent Brightener OB-1 CAS 1533-45-5 High Temperature Resistant Optical Whitening Agent for PET PC ABS PVC
Product Details
| CAS No.: | 1533-45-5 | Purity: | >99.0% |
|---|---|---|---|
| EINECS No.: | 216-245-3 | Molecular Formula: | C28H18N2O |
| State: | Powder | Substrate: | Rubber & Plastic |
| Additive Type: | Optical Brightening Agent | Melting Point: | 350 - 365°C |
| Application: | Plastics, PP,PE, PVC,ABS | Type: | Bisbenzoxazolyl Stilbene |
| Appearance: | Yellow-green Powder | Shade: | Blue Tone |
| Fineness: | >200 Mesh | Volatiles: | ≤0.5% |
| Ash: | ≤0.5% | Hazardous Chemical: | No |
| Packing: | 25 Kg/bag |
Product Description
- Product Info：
- Bisbenzoxazolyl stilbene OB-1 (CAS 1533-45-5, C.I. 393). Yellow-green powder, blue tone, MP 350–365°C, ≥98.5%. Highest heat resistance among brighteners; for rigid PVC, PP, PE, PA, PS, PC, ABS, PET.
- Properties:
- Extreme Heat Stable: Withstands high processing temps.
- Strong Brightening: Intense fluorescence, blue/green or yellow shade.
- High Purity: ≥98.5%, >200 mesh, low ash/volatiles.
- Applications:
- Plastics: Rigid PVC, PP, PE, PA, PS, PC, ABS, PET resin.
- Fibers: Polyester, nylon, polypropylene whitening.
- Note: Avoid soft/flexible PVC; lower weather resistance, may migrate.
Product Highlights
PRODUCT HIGHLIGHTSProduct Info：Bisbenzoxazolyl stilbene OB-1 (CAS 1533-45-5, C.I. 393). Yellow-green powder, blue tone, MP 350–365°C, ≥98.5%. Highest heat resistance among brighteners; for rigid PVC, PP, PE, PA, PS, PC, ABS, PET. Properties:Extreme Heat Stable: Withstands high processing temps. ...
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