FLEXIBLE POLYURETHANE FOAM WITH HIGH DURABILITY

摘要

A FLEXIBLE POLYURETHANE FOAM PREPARED BY REACTING POLYISOCYANATE WITH POLYOL AND/OR POLYMER POLYOL CONTAINING DISPERSED POLYMER MICROPARTICLES OBTAINED BY POLYMERIZING AN UNSATURATED COMPOUND, WATER, CATALYST, SURFACTANT AND, WHEN NEEDED, CROSSLINKING AGENT AND OTHER AUXILIARY AGENTS, WHEREIN A PORTION OR THE WHOLE OF THE POLYOL AND/OR THE POLYMER POLYOL IS PREPARED IN THE PRESENCE OF A COMPOUND HAVING A NITROGEN- PHOSPHORUS DOUBLE BOND AS A CATALYST, HAVE EXCELLENT WET COMPRESSION SET, FATIGUE BY CONSTANT-LOAD POUNDING AND DYNAMIC DURABILITY.