Cellular isocyanurate containing polymers

摘要: HIGH TEMPERATURE RESISTANT, LOW FLAME SPREAD CELLULAR POLYMERS ARE DISCLOSED. THESE OBTAINED BY POLYMERIZING POLYMETHYLENE POLYPHENYL ISOCYANATES CONTAINING 35 TO 85 PERCENT WEIGHT OF METHYLENEBIS(PHENYL ISOCYANATE) IN THE PRESENCE A TERTIARY AMINE AND MONOMERIC HOMOCYCLIC POLYEPOXIDE AND/OR POLYOL. AMOUNT EMPLOYED IS FROM ABOUT 0.01 EQUIVALENT 0.25 PER POLYISOCYANATE. 0.0045 0.5 POLYOL 0.3 NOVEL FOAMS USEFUL THERMAL INSULATION LIKE APPLICATIONS WHERE RESISTANCE EXTREME TEMPERATURES REQUIREMENTS MUST BE MET.