Chemical Name     2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole
Molecular Formula      C28H18N2O2
Molecular Weight 414.4
Structure      


CAS Number       1533-45-5
 
Specification  Appearance:    Yellowish green powder
               Melting point: 357~361°C
               Assay:    98%
               Volatiles Content    0.5%max
               Ash content:   0.50%max
 
Packing  25 kg / fiber drum
 
Applications 

1. Suitable for polyester fiber (PSF), nylon fiber and chemical fiber whitening.
2. Applicable to PP, PVC, ABS, PA, PS, PC, PBT plastic whitening brightening, with excellent whitening effect.
3. Suitable for whitening agent concentrated masterbatch added (such as: LDPE color concentrate)

 
Recommended dosage: every 1000Kg polymer added amount of Optical brightener OB-1:

1. polyester fiber  75-300g.(75-300ppm)
2. Rigid PVC ,PP, ABS, Nylon, PC  20-50g.(20-50ppm).
3. whitening concentrated masterbatch 5-7kg.(0.5-0.7%).