Optical Brightener OB

C. I.: 184CAS: 7128-64-5Ionic type: NonionicIngredient:2,5-Di(5-tert-butylbenzoxazol-2-yl)thiopheneColor light: Blue lightMolucular Formula:C26H26SO2N2Formula Weight:430.5618Transmittance: ≥96%Max uv absorption wavelength: 375nmMaximum fluorescence emission wavelength: 435nm.Place of Origin: China

Optical Brightening OB is insoluble in water, soluble in alkanes, fats, mineral oils, waxes and common organic solvents. OB has a high solubility (up to 6%), high fineness, and will not appear turbidity and impurity phenomenon, so fluorescent whitening agent OB is suitable for use in paints and coatings. It has superior fluorescent whitening effect, good thermal and chemical stability, and will not yellow for a long time, suitable for use in PVC, PS, PE, PP, ABS and other plastics and acetic acid fiber. Good light transmittance, good migration resistance, suitable for whitening transparent plastic products.

Synonyms: Optical brightener OB, also named, Fluorescent Brightener 184, OB 184, CAS 7128-64-7, whitening agent OB 184, CI 184, C. I. Optical Brightener OB, Tinopal OB, Brightener OB, Basic Brightener OB, Triton OB.

Application: Optical brightener OB is mainly used for PVC, PS, PE, PP, ABS and other plastics and acetic acid fiber, paint, paint, ink and other whitening. Because of its good light transmittance, suitable for transparent plastic products whitening.

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