Optical Brightener OB-1
Optical brightener OB-1 is greenish yellow optical brightener and is efficient in the use of polyester fibers. Its main application is plastics such as PS, HIPS, ABS, EVA, PE,PC, PP,and rigid PVC. It has excellent thermal stability, excellent brightening effect, and very few adding amount. The invisible ultraviolet light (wavelength range is about 360-380nm)can be absorbed by it, and then convert ultraviolet light into visible and longer-wavelength blue or violet light. Thus, it can decrease the undesired yellowish color in the matrix and reflect more visible light. Then the product appears brighter, whiter, more vivid.
Product Details
Chemical information
Synonyms:2,2′-(vinylenedi-p-phenylene)bisbenzoxazole; 2,2’-(1,2-ethenediyldi-4,1-phenylene)bis-benzoxazol;Optical Brightening Agent OB-1;1,2-Bis(4-(benzo[d]oxazol-2-yl)phenyl)ethene;
Molecular Structure:
| Molecular Formula:C28H18N2O2 | Molecular Weight:414 |
| CAS No:1533-45-5 | EINECS No: 216-245-3 |
| Density(g/cm3):1.21 | Average particle size(um):Pass 100 mesh |
| Specific surface(m2/g):/ | Oil Absorption(g/100g):/ |
| Melting point(℃):358 | Assay:98.5% |
Features
Optical Brightener OB-1 has excellent high temperature resistance. It has wide range of application,and is used for the whitening of nylon fiber, polyesters, and various plastics. It has outstanding brightening ability and good dispersibility. It also has good adaption and weather resistance
Applications
Polyester fiber, nylon fiber,polypropylene, hard PVC, ABS, EVA, PS, polycarbonate etc.
