| abstract |
The subject of the present invention is a composition comprising a) at least one epoxy resin, b) at least one cyclic amine of the formula (I) in the R 1 to R 4 are H or organic radical, with the proviso that at least one of R 1 , R 2 , R 3 and R 4 is H, and - X = - (Y 1 ) m - (A 1 ) n - (Y 2 ) o - (A 2 ) p - (Y 3 ) q - (A 3 ) r - (Y 4 ) s - (II) where independent of each other - m, n, o, p, q, r and s = 0 or 1, A 1 , A 2 , A 3 = alkylene or alkenylene radical and Y 1 , Y 2 , Y 3 , Y 4 = NR 5 , PR 5 , O or S, where R 5 independently of one another = organic radical, wherein in each case two organic radicals selected from R 1 to R 5 and optionally present radicals of the alkylene and / or alkenylene radicals A 1 , A 2 , A 3 can also form one or more further rings, - With the proviso that at least one of the radicals present selected from R 1 to R 5 and optionally present radicals of the alkylene and / or alkenylene radicals A 1 , A 2 , A 3 with at least one group -NHR 6 or -NH 2 substituted wherein R 6 = organic radical, and c) at least one salt of a strong Bronsted acid with a counter ion selected from metal ions, metal-containing ions, phosphonium ions and unsubstituted ammonium ions, wherein the ratio of the epoxy groups of the epoxy resin to the sum of all NH groups of all amines is 0.5: 1 to 1.5: 1 Process for their preparation and their use. |