Optical Brightener OB-1 for PVC

Product Detail

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 Specification

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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Optical Brightener OB-1 for PVC

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