Optical Brightener OB

Optical Brightener OB is a kind of plastics additives that can absorb UV light then emit visible blue light to reduce the yellowish and make the products whiter. Optical Brightener OB mainly used in whitening of thermoplastic, polyvinyl chloride(PVC), polypropylene(PP), polyester fiber, paint and ink, etc.

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Product Description

Optical Brightener OB is a kind of plastics additives that can absorb UV light then emit visible blue light to reduce the yellowish and make the products whiter.
Optical Brightener OB mainly used in whitening of thermoplastic, polyvinyl chloride(PVC), polypropylene(PP), polyester fiber, paint and ink, etc.

Product Name	Optical Brightener OB
Chemical Name	2,5'-Bis[2-(5-tert-buty l-2 benzoxazoly)thiophene
CAS No.	7128-64-5
C.I. No.	184
Structural Formula
Molecular Formula	C₂₆H₂₆N₂O₂ N₂
Molecular Weight	430
Technical Index	Appearance:slight greenish yellow powder Melting Point:200-202°C Purity:≥99%
Uses	Mainly be used in whitening of thermoplastic, polyvinyl chloride(PVC), polypropylene(PP), polyester fiber, paint and ink, etc. Pplastics:about 200g per 1000kgs
Package	10kg/25kg per fiber drum

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