METHOD FOR PRODUCING THERMALLY CURABLE PHENOL RESINS AND PHENOL RESIN OBTAINABLE BY THE METHOD

• Main Authors: Mortato, Mariangela, Badoux, François, Ghorbani, Masoumeh, Frei, Reto, Krawielitzki, Stefan, Holmes, Christopher, Sanglard, Marion
• Format: Patent
• Language: English; French; German
• Published: 29.08.2018
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; 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; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NAILING OR STAPLING MACHINES IN GENERAL; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PERFORMING OPERATIONS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF MATERIALS AS ADHESIVES; WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL

Die Erfindung betrifft ein Verfahren zur Herstellung von thermisch härtbaren Phenolharzen enthaltend den Schritt der Umsetzung einer polykondensationsfähigen phenolischen Verbindung mit 5-Hydroxymethylfurfural (HMF) unter zur Bildung von Polykondensationsprodukten führenden Bedingungen, und ist dadurch gekennzeichnet, dass das HMF mindestens ein HMF-Oligomer umfasst, und der Umsetzungsschritt bei pH-Werten von über 7 für mehr als 60 Minuten durchgeführt wird. Die Erfindung betrifft ferner thermisch härtbare Phenolharze sowie die Verwendung der Phenolharze zur Herstellung eines Holzverbundwerkstoffs. A method for producing thermosetting phenolic resins includes the step of reacting a polycondensable phenolic compound with 5-hydroxymethylfurfural (HMF) under conditions leading to the formation of polycondensation products. The HMF includes at least one HMF oligomer, and the reaction step is carried out at pH values greater than 7 for more than 60 minutes. Further, thermosetting phenolic resins may be used for producing a wood composite material.