Optical Brightener OB for Solvent Based Coating
Chemical Name 2.5-bis(5-tertbutyl-2-benzoxazolyl)thiophene
Molecular Formula C26H26SO2N2
Molecular Weight 430.575
Structure
CAS Number 7128-64 -5 .
Specification
| Appearance | Light green powder |
| Assay | 99.0% min |
| Melting Point | 196 -203°C |
| Volatiles Content | 0.5% max |
| Ash content | 0.2% max |
Applications
It is used in thermoplastic plastics. PVC, PE, PP, PS, ABS, SAN, SB, CA, PA, PMMA, acrylic resin., polyester fiber paint, coating the brightening of printing ink.
Usage
(With plastic raw material weight percentage)
| PVC Whitening | 0.01 ~ 0.05% |
| PVC | To improve brightness: 0.0001 ~ 0.001% |
| PS | 0.0001 ~ 0.001% |
| ABS | 0.01 ~ 0.05% |
| Polyolefin colorless matrix | 0.0005 ~ 0.001% |
| White Matrix | 0.005 ~ 0.05% |
Package and Storage
1. Net 25kg/full-paper drum
2. Store the product in a cool, dry, well-ventilated area away from incompatible materials.
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