OPTICAL BRIGHTENER OB

Chemical Name: 2,5-bis-(5-ter-butyl-benzoxazolyl-)thiophene

Molecular Formula: C₂₇H₂₇O₂N₂S
Molecular Weight: 443
CAS No.: 7128-64-5
C.I.: 184

Specification:

Use:

1. Optical Brightener OB is highly effective in polymer substrates such as engineering plastics, PE, PC, PVC, PS, ABS, PP, adhesive and other organic substrates.

2. The main applications include fibers, molded articles, films and sheets. And also can be used in clear lacquers, pigmented lacquers, paints, printing ink and synthetic leather. It will produce brilliant brightness with dyestuff, which is very efficient in directions for multicolor.

3. It can be used as a tracer in a variety of applications.

4. OB features excellent resistance to heat, exceptional whitening properties, good light fastness and low volatility. It is readily soluble in organic solvents and features good compatibility in various substrates. The product is especially suitable for applications such as films and fiber.

5. It enhances the whiteness of the substrate. In combination with dyes, the product produces particularly bright shades. Its excellent heat resistance renders it suitable for all relevant processing conditions. It is suitable for packing applications but local regulations must be observed.      Recommended dosage: 0.0001-0.001 phr

Packing: in 25kg fiber drum or carton