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EP0002518A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Condensation product of epsilon-caprolactam, formaldehyde and formamide, aminoplast modified by this condensation product and process for the preparation of the aminoplast

Assignee: Sanofi Aventis Deutschland GmbH
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Filing: 1978-12-12
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Granted: —
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Expires: 1998-12-12
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Abstract

Abstract Translated from German Kondensationsprodukte von ε-Caprolactam, Formaldehyd und Formamid, insbesondere N-(Formylaminomethyl)-ε-caprolactam und N-(N'-Formyl-N'-hydroxymethyl-aminomethyl)-ε-caprolactam werden hergestellt durch Umsetzung von Formamid und Formaldehyd in Gegenwart einer Base und gegebenenfalls von ε-Caprolactam bei Temperaturen von 70 bis 90°C während 4 bis 15 Stunden und anschließendes Sauerstellen des Reaktionsansatzes und, sofern noch kein ε-Caprolactam vorhanden ist, Hinzufügen von ε-Caprolactam und Abdestillation von Wasser bei 100 bis 135°C. Die Kondensationsprodukte sind wertvolle Modifizierungsmittel bei der Herstellung von Aminoplastharzen, die zur Imprägnierung von Papier und Geweben verwendet werden, die zur Herstellung beschichteter Holzwerkstoffe und Schichtstoffe dienen. Condensation products of ε-caprolactam, formaldehyde and formamide, in particular N- (formylaminomethyl) -ε-caprolactam and N- (N'-formyl-N'-hydroxymethyl-aminomethyl) -ε-caprolactam are prepared by reacting formamide and formaldehyde in the presence a base and optionally ε-caprolactam at temperatures of 70 to 90 ° C for 4 to 15 hours and then acidifying the reaction mixture and, if no ε-caprolactam is present, adding ε-caprolactam and distilling off water at 100 to 135 ° C. The condensation products are valuable modifiers in the production of aminoplast resins, which are used to impregnate paper and fabrics, which are used to produce coated wood-based materials and laminates.

Inventors

  • 👤 Steffen Dr. Piesch
  • 👤 Peter Dörries
  • 👤 Alfons Wolf
  • 👤 Herbert Dr. Wille

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-26 09:08
CPC Classifications
C; C07; C07D; C07D223/00; C07D223/02; C07D223/06; C07D223/08; C07D223/10; C08; C08G; C08G12/00; C08G12/02; C08G12/04; C08G12/043; C08G12/40; D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/47; D21H17/49

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