PROCEDIMENTO PER LA PRODUZIONE DI ESPANSI DI RESINE DI POLIMERI ETILENICI RETICOLATI CON IMMIDI E PRODOTTO OTTENUTO

Resin foam products which are infusible and insoluble in usual solvents and resist ignition and burning in air are prepared from unsaturated imides such as 4,4 min -methylenedianiline- bis-maleimide, unsaturated amic acids such as bis-maleamic acid and mixtures of unsaturated anhydrides such as male...

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Bibliographische Detailangaben
Hauptverfasser:	RICHARD ERNEST SKOCHDOPOLE, JERRY DEAN DE VRIEZE, JOHN MARVIN CORBETT
Format:	Patent
Sprache:	ita
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:	Resin foam products which are infusible and insoluble in usual solvents and resist ignition and burning in air are prepared from unsaturated imides such as 4,4 min -methylenedianiline- bis-maleimide, unsaturated amic acids such as bis-maleamic acid and mixtures of unsaturated anhydrides such as maleic anhydride and poly(primary amines). The resin foams are made by heating to resin-forming- foaming temperature a reaction mixture containing such starting material, surfactant and blowing agent.