THERMALLY STABLE FLAME RESISTANT FLEXIBLE POLYURETHANE FOAM

• Main Author: PLAVER F. MICHAEL
• Format: Patent
• Language: English; Korean
• Published: 09.04.2014
• 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 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

The present invention relates to a reactive formulation used to make a flame resistant flexible polyurethane foam which is particularly suited for use in under the hood vehicle applications. In particular, the flame resistant flexible polyurethane foam is made from a reactive formulation comprising an A side comprising (i) an organic isocyanate and a B side comprising (ii) an isocyanate-reactive component, (iii) a flame retardant component comprising a combination of red phosphorus, expandable graphite, and optionally sodium citrate wherein the resulting foam achieves after heat aging at 150° C. for seven days a V-0 rating at 0.5 inch according to Underwriters' Laboratories Standard 94 Flammability Test.