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Fluorescent brightener OB-1

Chemical name: 2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole

OB-1 Quality index:

Appearance: yellow green powder  
Assay: 98% 
Melting point: 359±1°C
Ash: ≤0.5% 
Moisture: ≤0.5% 
C.I.: 393

Uses & features:

OB - 1 is many plastic varieties (including universal type, engineering plastics, specialty plastics, thermosetting type thermoplastic plastics) synthetic chemical fiber varieties of whitening brighten up the most excellent Fluorescent brightening brightener varieties. The outstanding characteristic of the brightener is, less dosage, high whiteness; It can heat resistance, light fastness, weather resistance, resistance to chlorine bleaching, its use with other whitening agent compound with excellent whitening effect, especially for artificial leather, plastic, EVA, etc. The whitening of the best.