MBS Impact Modifier (Methyl Methacrylate-Butadiene-Styrene)
CAS Number: 25053-09-2
MBS Impact Modifier is a core-shell terpolymer based on a polybutadiene rubber core with a methyl methacrylate-styrene shell, providing excellent toughening for transparent PVC applications. Its refractive index is closely matched to PVC, making it ideal for clear rigid PVC bottles, thermoformed sheets, and blister packaging where both toughness and optical clarity are required. MBS is not suitable for outdoor UV-exposed applications.
Technical Specifications
| appearance | White free-flowing powder |
| moisture (%) | ≤0.5 |
| bulk density (g/mL) | 0.35–0.50 |
| butadiene content (%) | 50–65 |
| particle size (D50, μm) | 150–300 |
Applications
- Transparent rigid PVC bottles and containers
- Clear PVC thermoformed sheet
- PVC blister packaging
- Transparent PVC profiles
- Optically clear rigid PVC film
Key Features
- High optical clarity matching PVC refractive index
- Excellent low-temperature impact performance
- Effective at low loading levels
- Good compatibility with rigid PVC matrices
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CAS Number
25053-09-2
Category
Plastic / Rubber AdditivesAvailability
In StockSample
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