Polyurethane foam with coarsening microcellular structure

The following are described: (a) a process for producing polyurethane foam through reaction of one or more polyol components with one or more isocyanate components, where wax with a freezing point in the range from 40 DEG C to 90 DEG C is used as additive, (b) a polyurethane foam obtainable by this...

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Bibliographische Detailangaben
Hauptverfasser:	ALTHOFF RALF, MODRO HARALD, EMMRICH-SMOLCZYK EVA, ZIEGLER RAINER
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	The following are described: (a) a process for producing polyurethane foam through reaction of one or more polyol components with one or more isocyanate components, where wax with a freezing point in the range from 40 DEG C to 90 DEG C is used as additive, (b) a polyurethane foam obtainable by this process, (c) the use of waxes with a freezing point in the range from 40 DEG C to 90 DEG C as additive in the production of polyurethane foams for coarsening the foam structure, and also (d) a composition which comprises a wax with a freezing point in the range from 40 DEG C to 90 DEG C and which is intended for producing polyurethane foam.