IN-SITU POLYMERIZATION OF BONDED FOAM ADHESIVES

Process for preparing rebonded, flexible foam articles is provided. The process includes mixing together a mass of flexible foam crumbs with a liquid reaction mixture comprising polyisocyanate having a free isocyanate group content of greater than 10 % by weight and polyfunctional organic isocynate-...

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Bibliographische Detailangaben
Hauptverfasser:	SAWITSKI, ROBERT, G., JR, LOCKWOOD, ROBERT, J, SHIDAKER, TRENT, A, FOGG, BRIAN
Format:	Patent
Sprache:	eng ; fre
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 WORKING-UP
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Beschreibung
Zusammenfassung:	Process for preparing rebonded, flexible foam articles is provided. The process includes mixing together a mass of flexible foam crumbs with a liquid reaction mixture comprising polyisocyanate having a free isocyanate group content of greater than 10 % by weight and polyfunctional organic isocynate-reactive material. The rebonded, flexible foam articles can be prepared in the absence of steam as a curative agent. L'invention porte sur un procédé de préparation d'articles souples de mousses recollées consistant à mélanger à une masse de miettes de mousse souple, un mélange réactif d'un polyisocyanate présentant plus de 10 % en poids d'un groupe libre d'isocyanate, et un matériau organique polyfonctionnel réagissant avec l'isocyanate. Lesdits articles peuvent se préparer sans nécessiter de vapeur comme durcisseur.