Optical brightener OB

Specification Appearance: Light yellow powder Assay: 99.0% min Melting Point: 196 -203°C Volatiles Content: 0.5% max Ash content: 0.2% max Application It is used in thermoplastic plastics. PVC, PE, PP, PS, ABS, SAN, SB, CA, PA, PMMA, acrylic resin, polyester fiber paint, coating the brightening of printing ink. Usage (With plastic raw material weight percentage) 1. PVC Whitening: 0.01 ~ 0.05% 2. PVC : To improve brightness: 0.0001 ~ 0.001% 3. PS : 0.0001 ~ 0.001% 4. ABS: 0.01 ~ 0.05% 5. Polyolefin colorless matrix: 0.0005 ~ 0.001% 6. White Matrix: 0.005 ~ 0.05% Package and Storage 1. 25kg drums 2. Stored in a cool and ventilated place.