Process for the production of synthetic resins

In a process for the production of synthetic foamed resins, a mono-, di- or trimethylol ketone or a mixture thereof is first precondensed by the method described in the patent Specification and then foamed and/or hardened by the addition of catalytic amounts of a 10 to 60% aqueous solution of sodium...

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Bibliographische Detailangaben
Hauptverfasser:	THEODOR WAAG, GERHARD WOLTER
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 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 USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING-UP
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Beschreibung
Zusammenfassung:	In a process for the production of synthetic foamed resins, a mono-, di- or trimethylol ketone or a mixture thereof is first precondensed by the method described in the patent Specification and then foamed and/or hardened by the addition of catalytic amounts of a 10 to 60% aqueous solution of sodium or potassium hydroxide; 1.5 to 5.0 parts by weight of pure sodium or potassium hydroxide are used, in the form of a 10 to 60% aqueous solution, per 100 parts by weight of precondensate.