Optical Brightener OB-1 for PVC

1. Suitable for polyester fiber (PSF), nylon fiber and chemical fiber whitening.

2. Applicable to PP, PVC, ABS, PA, PS, PC, PBT, PET plastic whitening brightening, with excellent whitening effect.

3. Suitable for whitening agent concentrated masterbatch added (such as: LDPE color concentrate).

  • Chemical name: 2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole
  • Molecular formula: C28H18N2O2
  • Molecular weight: 414.4
  • CAS NO.: 1533-45-5
  • Product Detail

    Product Tags

    Chemical name 2,2′-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole
    Molecular formula C28H18N2O2
    Molecular weight 414.4
    CAS NO. 1533-45-5

    Chemical structure
    Optical Brightener OB-1


    Appearance Yellowish green powder
    Assay 98% min
    Melting Point 357~361°C
    Volatiles Content 0.5% max
    Ash content 0.5%max

    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%).

    Package and Storage
    Net 25kg/full-paper drum
    Store the product in a cool, dry, well-ventilated area away from incompatible materials.

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