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Non-ionic triblock copolymer based on polypropylene oxide (PPO) and polyethylene oxide (PEO) with unique reverse Pluronic® architecture.
Excellent solubilizing and stabilizing performance for hydrophobic actives in aqueous systems.
Low foaming profile suitable for high-shear and industrial cleaning applications.
Good thermal and pH stability across broad formulation conditions (pH 4–10).
Biodegradable backbone and low aquatic toxicity, supporting sustainable formulation goals.
Agrochemical formulations — emulsifiable concentrates (EC) and suspension concentrates (SC).
Industrial and institutional (I&I) cleaners — low-foam alkaline and neutral detergents.
Personal care — solubilizer for fragrances and UV filters in clear gels and aqueous sprays.
Pharmaceutical suspensions and oral liquid dosage forms requiring colloidal stabilization.
Specialty coatings — dispersant and wetting agent for pigment-rich waterborne systems.
| Chemical Type | Triblock copolymer (PEO-PPO-PEO, reverse architecture) |
| Product Form | Pale yellow to amber viscous liquid |
| Appearance | Clear to slightly hazy, homogeneous liquid at 25 °C |
| Primary Applications | Solubilization, emulsification, stabilization, wetting |
| Key Features | Low foaming, high solubilization capacity, non-ionic, thermoresponsive |
| Benefits | Enables clear aqueous formulations, improves active loading, enhances shelf-life stability |
| Recommended Storage | Below 30 °C, protected from direct sunlight and moisture |
| Regulatory Status | REACH registered; compliant with US FDA 21 CFR §173.370 (indirect food additives) |
Q1: What is the primary function of Tetronic 90R4 in formulations?
A: Tetronic 90R4 is a nonionic, amphiphilic block copolymer surfactant designed to provide effective solubilization, stabilization, and viscosity modulation—particularly in aqueous systems containing hydrophobic actives or oils. Its unique Pluronic®-derived architecture enables strong interfacial activity and temperature-responsive behavior.
Q2: Is Tetronic 90R4 suitable for use in personal care emulsions?
A: Yes, it is commonly used in mild, low-irritancy personal care applications such as cleansing gels, micellar waters, and oil-in-water emulsions. Its nonionic nature and high cloud point contribute to formulation stability across a broad pH range and compatibility with common preservatives and electrolytes.
Q3: How does Tetronic 90R4 differ from standard Pluronic® PEO-PPO-PEO surfactants?
A: Unlike linear Pluronics®, Tetronic® surfactants feature a tetrafunctional, star-shaped architecture with four PEO-PPO arms radiating from an ethylenediamine core. This structure enhances micellar stability, improves solubilization capacity for larger molecules, and often results in higher viscosity development at equivalent concentrations.
Q4: Can Tetronic 90R4 be used in cold-process formulations?
A: Yes—it dissolves readily in water at room temperature and does not require heating for incorporation, making it well-suited for energy-efficient, cold-process manufacturing. Its solubility profile supports rapid dispersion and uniform distribution without prolonged mixing.
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