Polyvinyl Butyral (PVB)
| Formula: | (C₆H₁₀O₂)n |
| CAS Number: | 63148-57-2 |
| EC Number (EINECS): | 240-500-6 |
| HS Code: | 39069090 |
| UN Number: | Not classified |
| IUPAC Name: | Poly(1-(butoxy)ethene) |
| Also Known As: | PVB Resin; Polyvinyl Butyral Resin |
| Molecular Weight, g/mol: | Variable (typical 40,000–80,000) |
Typical Specifications
| Appearance: | Amber to light yellow, transparent granules or powder |
| Odor: | Slight, characteristic |
| Melting Point, °C: | Softening point 70–80 |
| Boiling Point, °C: | Decomposes before boiling |
| Density, g/cm³ (at 20°C): | 1.07–1.09 |
| Solubility: | Soluble in alcohols, ketones, and esters; insoluble in water |
| Purity, %: | ≥99.0 |
| Grades Available: | Standard, Automotive, Laminating, Coating Grade |
| Packaging: | 25kg bags, 500kg jumbo bags, bulk containers |
Applications / Uses
Primary Applications
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Interlayer film in laminated safety glass (automotive, architectural)
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Adhesive and coating applications for glass and metal
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Binder in ceramic and magnetic materials
Secondary Applications
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Protective coatings in electronics and packaging
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Used in paints, inks, and varnishes
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Component in optical films and laminates
End Industries Served: Automotive, Construction, Electronics, Packaging, Coatings, Optical Films
Safety & Handling Information
Hazard Class (GHS): Not classified as hazardous; may cause minor irritation
Hazard Statements (H-Codes):
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H319: Causes serious eye irritation (dust)
Precautionary Statements (P-Codes):
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P280: Wear protective gloves/eye protection
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P261: Avoid breathing dust
Storage Conditions
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Store in a cool, dry, ventilated place
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Keep container tightly closed
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Protect from moisture and contamination
Transport Information
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ADR/RID: Not classified as dangerous goods
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IMDG: Not classified as dangerous goods
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IATA: Not classified as dangerous goods