MANUFACTURE OF FLAME-RETARDANT HARD URETHANE FOAM AND DEVICE FOR MANUFACTURING FLAME-RETARDANT HARD URETHANE FOAM

PROBLEM TO BE SOLVED: To provide a method for manufacturing a flame-retardant hard urethane foam constituted of substantially uniform closed calls with outstanding heat insulating properties and superb cell strength, using a flame-retarding foaming agent which contributes to solving issues such as t...

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Hauptverfasser:	OGOSHI RYOJI, TOMURO KOICHI, ITO KOJIRO, SHIMIZU TAKAYUKI, SAKATA YASUSHI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for manufacturing a flame-retardant hard urethane foam constituted of substantially uniform closed calls with outstanding heat insulating properties and superb cell strength, using a flame-retarding foaming agent which contributes to solving issues such as the destruction of an ozone layer in the stratosphere and a global temperature rise. SOLUTION: A flame-retardant foaming agent to be used contains a combustible component consisting of 3-6C hydrocarbons and/or a combustible hydrofluorocarbon, and an incombustible component selected from a carbon dioxide gas, nitrogen, helium and the like. A mixture is prepared by supplying a liquid incombustible component into a premix containing the combustible component and a polyol and uniformly mixing the described materials in a liquid fill state, and this mixture is mixed with an isocyanate and made to foam.