Description
Optical Brightening Agent OB
Optical Brightening Agent OB is a high molecular weight
optical brightener of the thiophenediyl benzoxazole class, suitable
for the optical brightener of polymers at all stage of
processing.
Key Words: optical brightening agent OB, optical brightener
OB, fluorescent brightener OB, optical whitening agent OB,
brightener OB
Typical Properties:
Chemical Name: 2,*-(2,*-Thiophenediyl)
Bis[*-(1,*-dimethylethy)]
Benzoxazole
Molecular Formula: C*7H*7O2N2S
Molecular Weight: **3
CAS No.: ********5
C.I.: **4
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
