OB

Fluorescent whitening agent OB CAS NO.: 7128-64-5, chemical name is 2.5-bis (5-tert-butyl-2-benzoxazolyl) thiophene, it appears a light yellow powder with a melting point of 200-202 ° C,  and its purity is 99%min. Optical Brightening Agent OB Cas:7128-64-5 properties and characteristics are as follows: 1. Small dosage, high whitening intensity, and very good whitening effect can be achieved with very small dosage. 2. Wide applicability, suitable for whitening various plastics. 3. It has good compatibility with plastics, high temperature resistance, and excellent sun and weather resistance. Optical Brightening Agent OB Cas:7128-64-5 application scope: 1. It is particularly suitable for whitening plastics such as polyolefins, polyamides, and polyacrylonitrile. 2. Widely used in film, injection molding, and extrusion molding materials, suitable for the processing of all plastics. Optical Brightening Agent OB Cas:7128-64-5 application method: 1. It is particularly suitable for whitening plastics such as polyolefins, polyamides, and polyacrylonitrile. 2. Widely used in film, injection molding, and extrusion molding materials, suitable for the processing of all plastics.