METHOD FOR PRODUCTION OF MODIFIED UREA-MELAMINE-FORMALDEHYDE RESIN

FIELD: polymer production. SUBSTANCE: urea-melamine-formaldehyde resin applicable for manufacturing wood chipboards, composites, and as glues for plywood is prepared by condensation of urea-formaldehyde concentrate, obtained by oxidative dehydration of methanol on iron-molybdenum catalyst in tubular...

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Hauptverfasser:	AFANAS'EV S.V, MAKHLAJ V.N
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON 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:	FIELD: polymer production. SUBSTANCE: urea-melamine-formaldehyde resin applicable for manufacturing wood chipboards, composites, and as glues for plywood is prepared by condensation of urea-formaldehyde concentrate, obtained by oxidative dehydration of methanol on iron-molybdenum catalyst in tubular reactor followed by chemisorption of formaldehyde-containing gas with urea solution, with urea and melamine in presence of modifier, which is still residue of monoethanolamine purification in ammonia production. EFFECT: optimized and intensified synthesis and improved performance characteristics of resin. 2 cl, 1 tbl, 2 ex