Chemical Compositions

2,2'-(4.4'-diphenol vinyl)di-henzoxazol

CAS NO.

1533-45-5

Molecular Formula

C28H18N2O2

Features

Yellow-green crystalline powdery solid. Insoluble in water. Has good heat resistance, especially suitable for processing polyester and resin with high Melting point, with excellent whitening effect, low dosage.

Technical index

Melting point 353 -359 ℃ 
Maximum absorption  wavelength 374nm

Maximum fluorescence emission wavelength 434nm

Main application

Widely used in ABS, PS, HIPS, PA, PC, PP, EVA and rigid PVC and other plastics. Can withstand 375 ℃ high temperature, especially for high temperature processing engineering plastic products and fiber products. For PE and soft PVC using fluorescent whitening agent OB-1, special attention should be paid to the amount , excessive use of whitening agent will occur migration.

Recommended dosage

0.0025-0.025%, not more than 0.03%

Packing

10 kg cartons lined with plastic bag.

Storage

Keep away from heat and heat and avoid exposure. No direct contact with acid and alkali or mixed. Shelf life is two years.