OPTICAL BRIGHTENER AGENT OB

Optical Brightener OB

Specification: Optical Brightening Agent OB is a high molecular weight optical brightener of

the thiophanate benzoxazole class, suitable for the optical brightener of polymers at all stage

of processing.

Specifications: Appearance: Yellowish or yellowish green crystal powder

Assay: 98.5%

Melting Point: 196-203

Ash: 0.3% max.

Volatile Content: 0.3%max.

Particle size: 200 meshes

Application: It can be used to whiten PVC, polystyrene, polypropylene, PA, PMMA, PE,PP,

Paint, coating, printing ink and so on.

Packing:25kg / fiber drum with PE liner