FLEXIBLE POLYURETHANE FOAM WITH HIGH DURABILITY

• Main Authors: MASAHIRO ISOBE, SATOSHI YAMASAKI, SEIJIRO SAKAI, USAJI TAKAKI, TADAHITO NOBORI, KAZUHIKO OHKUBO, TSUKURU IZUKAWA
• Format: Patent
• Language: English
• Published: 30.03.2007
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

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.