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1.Name : Fluorescent Brightener OB/ Fluorescent Brightener 184/Optical Brightener OB/ Fluorescent Whitening Agent OB/ Fluorescent Brightener OB/ UVITEX OB/ Optical Brightening Agent OB
2.Chemical name: 2,5-bis(5-tert-butyl benzoxazolyl-2-)thiophene
3.Molecular weight: 430
4.Appearance: slight yellow or milk white powder
5.Melting point: 200~202° C
6.Application: Mainly be used in whitening of thermoplastic, polyvinyl chloride (PVC), polypropylene (PP), polyester fiber, paint and ink, etc.
7.Direction for usage:Thoroughly dispersed in all those any ultra violet spectrum absorption agent is used in the polymers, the optimal dosage of optical brightener OB should be adjusted.DOSAGE: (per 100 kg polymer ):PVC white 0.01-0.05% (10-50 g) transparent 0.0001-0.001% (0.1-1 g)PS white 0.001% (about 1g ) transparent 0.0001-0.001% (0.1-1 g)ABS natural color 0.01-0.05% (10-50 g) white 0.01-0.05% (10-50 g)PE, PP colorless 0.0005-0.001% (0.5-1 g) white 0.005-0.05% (5-50 g)Other plastic are like above
8.Package: Packaged in iron drum or cardboard barrels. Net weight is 25 kg or 50 kg each.
9.Storage: Should be stored in cool and dry place.
Fluorescent Brightener OB
