New sulfite- or hydroxymethanesulfonate-modified melamine resin composition for use as impregnating resin for paper laminating foils

Melamine resin mixture for impregnating laminating papers comprising a melamine-formaldehyde resin, a sulfite or hydroxymethanesulfonate, and optionally an elastifying agent. Melamine resin mixture comprising: (a) a melamine resin made from (a1) melamine (component a1) and (b1) per mol. melamine, 1....

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Bibliographische Detailangaben
Hauptverfasser:	SCHERR, GUENTER, BIEDERMANN, NORBERT, STAHL, STEFAN, JAECKH, CHRISTOF, DECHER, JAKOB
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	Melamine resin mixture for impregnating laminating papers comprising a melamine-formaldehyde resin, a sulfite or hydroxymethanesulfonate, and optionally an elastifying agent. Melamine resin mixture comprising: (a) a melamine resin made from (a1) melamine (component a1) and (b1) per mol. melamine, 1.45-1.90 mol. formaldehyde (component b1), with a clouding temperature of 10-30 deg C (component a); (b) per mol. melamine in the melamine resin (a), 0.2-0.4 mol of a sulfur compound selected from sulfite and hydroxymethanesulfonate (component b); and (c) optionally, per mol. melamine in melamine resin (a), 0.01-0.3 mol. of an elastifying agent (component c). Melaminharzmischung, enthaltend DOLLAR A a) ein Melaminharz aus DOLLAR A a1) Melamin (Komponente a1) und DOLLAR A b1) pro Mol Melamin 1,45 bis 1,90 Mol Formaldehyd (Komponente b1) DOLLAR A mit einer Trübungstemperatur von 10 bis 30 DEG C (Komponente a) DOLLAR A b) pro Mol Melamin im Melaminharz (a) 0,2 bis 0,4 Mol einer Schwefelverbindung, ausgewählt aus der Gruppe der Sulfite und der Hydroxymethansulfonate (Komponente b), und DOLLAR A c) gegebenenfalls pro Mol Melamin im Melaminharz (a) 0,01 bis 0,3 Mol eines Elastifizierungsmittels (Komponente c).