COMPOSITION FOR PRODUCTION OF POLYISOCYANURATES FOR HEAT AND THERMAL RESISTANT MATERIALS Russian patent published in 1996 - IPC

FIELD: machine building and other branches of industry. SUBSTANCE: 100 mass parts of aromatic diisocyanate are mixed with 2.0-16.0 mass parts of low molecular weight carbon chain polymer. Then 0.1-0.4 mass parts of hardening catalyst and 4.0-20.0 mass parts of α-oxide are added. Thus prepared mixture is placed into form and affected by hardening. Desired polymer material has tensile strength up to 120 MPa, its specific impact viscosity being 14-24 kJ/m.sq, heat and thermal resistance is more 320 C. EFFECT: improves quality of desired product.