Epoxy adhesive composition

C - Chemistry – Metallurgy – 08 – G

Patent

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Details

C08G 59/18 (2006.01) C08G 59/42 (2006.01) C08L 63/00 (2006.01) C09J 163/00 (2006.01)

Patent

CA 2553251

The invention relates to an epoxy adhesive composition comprising a) a first epoxy resin, b) a second epoxy resin modified with an acrylonitrile~butadiene rubber, the latter comprising on average less than 25 wt% acrylonitrile, and c) a toughener. The total amount of component b) and component c) is higher than 30 % based on the total weight of the composition, and the weight ratio of component c) to component b) is greater than 1:1. The invention further relates to the use of said epoxy adhesive composition for the assembly of parts of a vehicle. It also relates to a vehicle, parts of which are assembled by said epoxy adhesive composition.

L'invention concerne une composition adhésive époxy comprenant: a) une première résine époxy, b) une seconde résine époxy modifiée au moyen d'un caoutchouc acrylonitrile-butadiène, ce dernier comprenant en moyenne moins de 25 % en poids d'acrylonitrile, et c) un durcisseur. La quantité totale du composant b) et du composant c) est supérieure à 30 %, en fonction du poids total de la composition, et le rapport pondéral du composant c) par rapport au composant b) est supérieur à 1:1. L'invention concerne également l'utilisation de cette composition adhésive époxy pour l'assemblage de pièces d'un véhicule. L'invention concerne encore un véhicule dont les parties sont assemblées au moyen de la composition adhésive époxy de l'invention.

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