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Optical Brightener OB-2

Product Name: Optical Brightener OB-2

Chemical Name: 4,4'-Bis(5-methyl-2-benzoxazolyl)stilbene

Synonyms : bismethylbenzoxazolylstilbene; Optical Brightener OB-2; Fluorescent Brightener Agent OB-2;

CAS NO.: 2397-00-4

It is an optical brightener for plastics(PP, ABS, EVA, PS and PC). It also has very good effect in whitening and brightening polyester fiber. It has favorable whitening and brightening effects to polyethylene, polypropylene, PVC and other plastics and products.

Specifications:

Appearance: Bright Greenish Yellow crystal powder

Melting point: 336-342℃

Ash: 0.3%max.

Volatile Content: 0.2%max

Purity: Bis (benzoxazol-2-yl-stilbenes) 98.5%

4,4’-Bis(5-methyl-2-benzoxazolyl)stilbene 95%min.

Packing: 25kgs fiber drum