PRODUCTION OF AMINOFORMALDEHYDE RESIN

PURPOSE:To obtain an amino resin from normally liquid alcohol, formaldehyde, melamine, etc., by efficiently discharging the formed water out of the system and effecting the shortening of a reaction time and the stabilization of the resin quality by separating and removing the water in the vapor gene...

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Bibliographische Detailangaben
Hauptverfasser:	AKAMATSU SHIHO, KAMATA KAZUNORI, OOSHIRO HIROTOSHI, FUKUDA HIROSHI, DOMOTO KAZUMI, YAMAZAKI MASAFUMI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain an amino resin from normally liquid alcohol, formaldehyde, melamine, etc., by efficiently discharging the formed water out of the system and effecting the shortening of a reaction time and the stabilization of the resin quality by separating and removing the water in the vapor generated in the reactor in a specified manner. CONSTITUTION:A process for producing an amino resin by reacting under heating a normally liquid alcohol (e.g. methanol) with formaldehyde and melamine and/or urea and/or benzoguanamine in the presence of an acid catalyst, wherein the water in the vapor generated in a reactor 1 is separated and removed by using a polymer membrane 5.