Process for the production of shoe soles having a compact outer layer and a cellular core

The invention relates to a process for the production of mouldings having a compact outer layer and a cellular core, for example soft, flexible shoe soles, having a density of from 0.4 to 1.0 g/cm , by reacting a) organic and/or modified organic polyisocyanates with b) at least one high-molecular-we...

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Bibliographische Detailangaben
Hauptverfasser:	TINTELNOT, DIETER, REICH, ERHARD, VOLKERT, OTTO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHARACTERISTIC FEATURES OF FOOTWEAR CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS FOOTWEAR GENERAL PROCESSES OF COMPOUNDING HUMAN NECESSITIES MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PARTS OF FOOTWEAR THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	The invention relates to a process for the production of mouldings having a compact outer layer and a cellular core, for example soft, flexible shoe soles, having a density of from 0.4 to 1.0 g/cm , by reacting a) organic and/or modified organic polyisocyanates with b) at least one high-molecular-weight compound containing at least two reactive hydrogen atoms and, if desired, c) low-molecular-weight chain extenders and/or crosslinking agents, in the presence of d) low-boiling aliphatic and/or cycloaliphatic hydrocarbons having 4 to 8 carbon atoms in the molecule, preferably pentanes, as blowing agent, e) catalysts and, if desired, f) assistants and/or additives. l