LOW PRESSURE PROCESS FOR FROTHING POLYURETHANE OR POLYISOCYANURATE

A process of making a polyurethane or polyisocyanurate foam comprises the step of mixing under low pressure: (A) An isocyanate; (B) A compound reactive with the isocyanate, e.g., a polyol; (C) A liquid blowing agent; and (D) Carbon dioxide. L'invention concerne un procédé de fabrication d'...

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Bibliographische Detailangaben
Hauptverfasser:	REXRODE, ERIC, M, VAIRO, GIUSEPPE, PIGNAGNOLI, FRANCESCA, FLAHERTY, KELLY, R
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON 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:	A process of making a polyurethane or polyisocyanurate foam comprises the step of mixing under low pressure: (A) An isocyanate; (B) A compound reactive with the isocyanate, e.g., a polyol; (C) A liquid blowing agent; and (D) Carbon dioxide. L'invention concerne un procédé de fabrication d'une mousse de polyuréthane ou de polyisocyanurate qui comprend l'étape de mélange sous basse pression de :(A) un isocyanate; (B) un composé capable de réagir avec l'isocyanate, par exemple un polyol; (C) un agent d'expansion liquide; et (D) du dioxyde de carbone.