IPDI/IPDA
IPDI/IPDA
Isophorone Diisocyanate (IPDI) is an organic compound with the molecular formula C12H18N2O2. It is a colorless to slightly yellow liquid, known for its pungent odor. IPDI is insoluble in water but decomposes upon contact with it, while being miscible with various organic solvents, including hydrocarbons, esters, and ketones.
Production
IPDI is produced through a multi-step process involving the phosgenation of isophorone diamine. Despite its wide applications, it accounts for a relatively small portion of the global diisocyanate market, along with Hexamethylene Diisocyanate (HDI), contributing approximately 5%.
Applications
IPDI is utilized in the creation of specialty polyurethanes, particularly where stability, weather resistance, and durability are critical. Some common applications include:
- Polyurethane resins (PUR): Used in coatings, inks, elastomers, and thermoplastic polyurethanes (TPU).
- Aqueous dispersible polyurethane polymers (PUD): Offering exceptional resistance to environmental degradation, particularly from weather exposure.