Optical
Brightening Agent OBis a high molecular weight optical
brightener of the thiophenediyl benzoxazole class, suitable for the
optical brightener of polymers at all stage of
processing.
Specifications:Appearance: Yellowish or yellowish
green crystal powder
Assay: *9% min.
Melting Point: ******3
Ash: 0.3% max.
Volatile Content: 0.3%max.
Particle size: **0 meshes
Max. Absorption Wavelength: **5nm(in ethanol)Application:It can be used to whiten PVC,
polystyrene, polypropylene, PA, PMMA, PE,PP, Paint, coating,
printing ink and so on.
Packing:*5kg / fiber
drum with PE liner
