METHOD FOR MAKING PHENOL-FORMALDEHYDE RESINS FLAME-RESISTANT

In the method described, one or more halogen-free phosphorus compounds are incorporated in the pre-condensed resins before the final resin-curing stage. During final curing, the phosphorus compounds are bound by covalent bonds into the resin structure and/or are trapped in the resin structure as suc...

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Bibliographische Detailangaben
Hauptverfasser:	NAEGERL, HANS-DIETER, DORN, KARLHEINZ, SOMMER, KLAUS, FRANKENFELD, KLAUS
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	In the method described, one or more halogen-free phosphorus compounds are incorporated in the pre-condensed resins before the final resin-curing stage. During final curing, the phosphorus compounds are bound by covalent bonds into the resin structure and/or are trapped in the resin structure as such or in the form of aggregates or condensates. On décrit un procédé pour l'ignifugation de résines phénol-formol selon lequel on incorpore aux résines précondensées, avant le durcissement définitif, un ou plusieurs composés phosphorés sans halogènes qui sont liés à la structure de la résine par des liaisons covalentes lors du traitement ultérieur (durcissement) et/ou qui sont incluses dans la structure de la résine en tant que telles ou sous forme d'agrégates ou de condensats.