Overview
Monobutyltin Oxide is an amorphous white solid used primarily as an esterification and polycondensation catalyst. It is hydrolytically stable and performs efficiently at reaction temperatures between 210°C–240°C (stable up to 250°C), making it well suited for demanding polyester resin production.
Applications
- Catalyst for saturated polyester resins (powder coatings, coil coatings)
- Catalyst for unsaturated polyester resins (gel coat, sheet molding compounds, cast molding)
- Production of polymeric plasticizers
- Phase-transfer catalysis in polycondensation reactions
Key Benefits
- Solubilizes into the carboxylic acid reaction mixture at ~80°C and integrates into the final product without affecting quality
- No neutralization or filtration step required post-reaction
- Shortens esterification cycle times and reduces energy consumption through lower required reaction temperatures
Specifications
Appearance
White powder
Assay
55.0–56.5%
Information
Available in small-quantity samples through bulk/commercial volumes