Auxiliary Agent Optical brightener OB

Specifications Product: Optical Brightener OB Chemical name: 2.5-bis (5-terbuty1-2-benzoxazolyl) thiophene CAS NO.: 7128-64-

OB is a fluorescent whitening agent of the thiophenediyl benzoxazole class. The product is useful in plastics, man-made fibers, printing inks and coatings, flexible PVC and polyethylene. Dosage: 0.01%~0.05%.

Specification:

Molecular Formula  Assay  a   Molecular Weight  Appearance  Melting Point  Volatiles  Partical Size     TGA  b @ 335.9°C ( LC ) (Air @ 20°C/min. rate)

C26H26SO2N2  98% min. 430g/mole Slight Yellowish powder  200-202°C <0.15% <50 (mean micron) 90% Retention

Application/Uses:

•     Coatings

•     Flexible PVC

•     Man-made fibers       

•      Plastics

•     Polyethylene

•     Printing Inks

Key Attributes:

•     Colors appear more brilliant

•     Environmentally friendly

•     Excellent brightening ability

•     Produce a bluish tinge, masking yellowness.

•     Whiter-than-white appearance.

Packing : 25kgs fibre drum

Quantity: Around 5.25mts/20`fcl without pallet.

Storage: Keep in cool and dry place, far away from high temperature and sunshine.

Auxiliary Agent Optical brightener OB