FLEXIBLE FOAMS WITH LOW BULK DENSITIES AND COMPRESSIVE STRENGTHS

The present invention provides flexible polyurethane foams with bulk densities less than about 15 kg/m3 and compressive strengths less than about 1.5 kPa and a process for producing these foams. The inventive foams are produced where polyisocyanates are reacted with special polyol mixtures in combin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	KLAUS STEINBORN
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON 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 WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention provides flexible polyurethane foams with bulk densities less than about 15 kg/m3 and compressive strengths less than about 1.5 kPa and a process for producing these foams. The inventive foams are produced where polyisocyanates are reacted with special polyol mixtures in combination with high amounts of water and carbon dioxide dissolved under elevated pressure as the blowing agent. La presente invencion se refiere a espumas de poliuretano blandas y elasticas con densidades aparentes inferiores a 15 kg/m3 y durezas a la composicion inferiores a 1,5 kPa, asi como a un procedimiento para su fabricacion.