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OB-1

Type: Optical Brightener

Development / Applications

The light stability of OB-1 varies with the substrate. It is primarily used to brighten synthetic fiber and plastic products, and is widely used in plastic film, lamination molding materials, and injection molding. It also exhibits good whitening efficiency in polyolefins, rigid PVC, PVC foam, TPR, EVA, and PU foam. It also has a particularly good effect on foaming plastics, EVA, and PE foam.A dosage in a low range, from 0.001-0.020 phr, is recommended to prevent the tinting power of this additive from predominating over the base pigment.    Properties:
  • The colors appear brighter.
  • Environmentally friendly.
  • Excellent whitening performance.
Storage
This product should be stored at normal room temperature. Once opened, the packaging should be tightly resealed.
The safety data sheet for handling this material is available upon request. OB-1 is not irritating to eyes or skin and has very low oral toxicity.
25 kg pail
Download technical data sheet
Physical PropertiesSpecification
Appearance crystalline yellow powder
Systematic name2,2′-(1,2-ethenediyldi-4,1-phenylene)bisbenzoxazole
FormulaC28H18N2O2
Purity (HPLC) (%)≥ 99
Melting Point (°C)300 – 380 
Ash content (%)≤ 0.5
Volatiles (%)≤ 0.5

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