C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 163/00 (2006.01)
Patent
CA 2568290
The present invention relates to an epoxy adhesive composition comprising a) a first epoxy resin, b) a second epoxy resin modified with a copolymer based on a 1,3-diene and a polar, ethylenically unsaturated comonomer, c) a toughener and d) a polymer comprising a polyester segment, said polymer being at least partially crystalline at room temperature and having a softening temperature in the range of 40~ to 125~C. The invention further relates to the use of such an epoxy adhesive composition for bonding parts of a vehicle without prehardening of the epoxy adhesive composition and to a vehicle, parts of which are bonded by the epoxy adhesive composition.
L'invention concerne une composition époxy adhésive qui comprend : a) première résine époxy, b) seconde résine époxy modifiée par copolymère à base de 1,3-diène et de comonomère polaire éthylène insaturé, c) durcisseur et d) polymère à segment polyester, au moins partiellement cristallin à température ambiante et à température de ramollissement comprise entre 40?·¿ et 125 ?·¿C. L'invention concerne également l'utilisation de cette composition pour la liaison de pièces de véhicule sans prédurcissement de la composition, et un véhicule dont les parties sont liées par ladite composition.
Flueckiger Jeannine
Frick Karsten
Lutz Andreas
Dow Global Technologies Inc.
Dow Global Technologies Llc
Smart & Biggar
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