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Benetex® OB

Technical Datasheet | Supplied by Mayzo
Benetex®OB by Mayzo is 2,5−Thiophenediylbis(5−tert−butyl−1,3−benzoxazole). Acts as an optical brightener, fluorescent whitening agent. It is heat resistant, solvent soluble, chemically stable and provides brighter looking colors in plastics. Exhibits good light fastness and low volatility, exceptional whitening properties, resistance to heat, is FDA cleared for use in all polymers, highly compatible with a wide range of organic substrates and solvents. Benetex®OB by Mayzo is compatible with PVC, polyethylene, polypropylene, cellulose acetate, polystyrene, polycarbonate, acrylics, polyurethane, linear polyester, and polyamides (nylon). Recommended dosage level is 0.0005-0.001% in unpigmented polyolefins and between 0.005-0.1% in other substrates. It has a shelf life of 2 years.
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Product Type
Optical Brighteners / Whitening Agents
Chemical Composition
2,5−Thiophenediylbis(5−tert−butyl−1,3−benzoxazole)
CAS Number
7128-64-5
SpecialChem additionnal informations based on CAS Number : 7128-64-5

Hansen Solubility Parameters

[18.8, 2.9, 2.9]
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[δD - Dispersion force interactions, δP - Polar force interactions, δH - Hydrogen bond force interactions]

Please note, these HSP values are estimations. It is based upon the “like seeks like” principle. It splits an ingredients interactions into three parameters; δD (Dispersion force interactions), δP (Polar forces interactions) and δH (Hydrogen bond force interactions). Hansen Solubility Parameters can help you find a wide range of products that are predicted to be compatible with Benetex® OB. A practical determination of these HSP values would provide higher certainty. Learn More.

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