COPOLYIMIDES ARYLALIPHATIQUES A ENCHAINEMENTS ETHER, LEUR PREPARATION, LEURS MELANGES OU PRODUITS DE REACTION AVEC DES RESINES EPOXYDES ET LEUR UTILISATION POUR LA FABRICATION DE MATERIAUX COMPOSITES FLEXIBLES

摘要

1. Adhesive composition characterized in that it comprises a) at least an arylaliphatic copolyimide with ether chains resulting from the reaction of at least one aromatic compound of general formula see diagramm : EP0232655,P16,F1 with at least one primary diamine of formula H2 N-R-NH2 and at least one primary diamine of formula H2 N-R"1 -O-(-R'-O-)n -R"2 -NH2 the diamine of formula (1) representing from 90 to 30% by mole and the diamine of formula (2) from 10 to 70% by mole of the total amount of primary diamines ; Ar being a tetravalent aromatic radical made of one or more rings and whose four valences are on separate carbon atoms located two by two in ortho position in relation to each other ; X and Y each being a hydrogen atom or a hydrocarbon radical ; R, R', R" b) at least one epoxy resin possessing more than one epoxy group per molecule.