COMPOSITION FOR FLAME-RETARDANT FLEXIBLE POLYURETHANE FOAM

摘要

THE PRESENT INVENTION PROVIDES A COMPOSITION FOR A FLAME-RETARDANT FLEXIBLE POLYURETHANE FOAM COMPRISING: (A) 100 PARTS BY WEIGHT OF A POLYOL COMPONENT CONTAINING A POLYETHER POLYOL HAVING AT LEAST 2 HYDROXYL GROUPS AND A NUMBER AVERAGE MOLECULAR WEIGHT OF 2,000 TO 5,000; (B) 3 TO 50 PARTS BY WEIGHT OF A MELAMINE-BASED FLAME RETARDANT HAVING AN AVERAGE PARTICLE DIAMETER OF 30 TO 60 M; (C) 5 TO 35 PARTS BY WEIGHT OF AN ADDITIVE-TYPE PHOSPHORUS-CONTAINING FLAME RETARDANT; (D) 0.01 TO 2 PARTS BY WEIGHT OF A CATALYST; (E) 0.1 TO 10 PARTS BY WEIGHT OF A BLOWING AGENT; (F) 0.1 TO 3 PARTS BY WEIGHT OF A SILICONE FOAM STABILIZER; AND (G) A POLYISOCYANATE INDEX OF 90 TO 120. THE COMPOSITION OF THE PRESENT INVENTION ENABLES A HIGHLY FLAME-RETARDANT POLYURETHANE FOAM TO BE OBTAINED EVEN WITH THE USE OF A GENERAL-PURPOSE POLYOL.