PROCESS FOR PRODUCING A MAINLY CLOSED CELL PHENOLIC FOAM

"Process for producing a mainly closed cell phenolic foam" The invention relates to a process for producing a mainly closed cell phenolic foam by curing a foam system comprising at least a phenolic resin and a blowing agent. This curing is effected in the presence of an either or not alkyl...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SPANHOVE, PETER, WALLAEYS, BART
Format:	Patent
Sprache:	eng ; fre
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:	"Process for producing a mainly closed cell phenolic foam" The invention relates to a process for producing a mainly closed cell phenolic foam by curing a foam system comprising at least a phenolic resin and a blowing agent. This curing is effected in the presence of an either or not alkylated morpholine which is fluorated whether completely or not and which corresponds to the following general structural formula : Cn HxFyNO wherein : n ? 4 x = 2n + 1 - y y = 2n + 1 - x. In this way, it is possible to obtain a phenolic foam having good insulation properties even if use is made of a blowing agent which is substantially free of CFC's or if the foam temperature is allowed to rise during the curing upto above 85.degree.C to obtain a better curing.