Two-component adhesive

C - Chemistry – Metallurgy – 08 – G

Patent

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Details

C08G 18/10 (2006.01) C09J 175/00 (2006.01)

Patent

CA 2677156

Two-component adhesive for bonding wood materials, comprising an isocyanate-containing component A and an amine-containing component B, component A comprising an isocyanate-terminated prepolymer having an isocyanate functionality of >= 1.7, preferably of 1.7 < fNC0 < 3, more preferably in the range from 2 to 3; and component B comprising at least one diamine and/or polyamine, preferably a polyetherdiamine and/or polyether- polyamine. An adhesive of this kind permits not only surprisingly advantageous properties on the part of the resulting bond but also bonds which can be accomplished very rapidly.

La présente invention concerne un adhésif à deux composants permettant de coller des matériaux en bois, comprenant un composant A contenant de l'isocyanate et un composant B contenant de l'amine, le composant A comprenant un prépolymère terminé par un isocyanate ayant une fonctionnalité isocyanate >= 1,7, de préférence 1,7 < fNC0 < 3, de manière davantage préférée dans la plage de 2 à 3 ; et le composant B comprenant au moins une diamine et/ou une polyamine, de préférence une polyétherdiamine et/ou une polyéther-polyamine. Un adhésif de ce type permet de bénéficier non seulement des propriétés remarquablement avantageuses que présente le collage obtenu, mais également de collages qui peuvent être effectués très rapidement.

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