Verfahren zur Verminderung der Formaldehydabgabe von Holzspan- oder Faserplatten

Redn. in HCHO generation in aminoplast-bonded, pressed lignocellulose articles (esp. wood- or fibre-board) is effected by: (a) adding condensed tannin to the lignocellulose before, during or after applying the aminoplast; and (b) applying an HCHO-reactive material after pressing.

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Bibliographische Detailangaben
Hauptverfasser:	SCHMIDT, HEINZ, 93149 NITTENAU, DE, BEER, JOSEF, 93194 WALDERBACH, DE, BISTRAM, EBERHARD BARON VON, 92439 BODENWOEHR, DE
Format:	Patent
Sprache:	ger
Schlagworte:	MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUTORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTINGOF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL NAILING OR STAPLING MACHINES IN GENERAL PERFORMING OPERATIONS TRANSPORTING WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL
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Beschreibung
Zusammenfassung:	Redn. in HCHO generation in aminoplast-bonded, pressed lignocellulose articles (esp. wood- or fibre-board) is effected by: (a) adding condensed tannin to the lignocellulose before, during or after applying the aminoplast; and (b) applying an HCHO-reactive material after pressing.