| 摘要 |
K-16873/= Curable compositions of polyether sulfone or. Polyether ketone copolymers and unsaturated imides The invention relates to curable compositions comprising a) a copolyether resin having end groups -OR1 linked direct to phenyl nuclei and containing 1 to 50 mol% of repeating structural units of formula I (I), and 99 to 50 mol% of repeating structural units of formula II ( II), wherein Rl is hydrogen, a phenylene radical substituted by amino groups or ethylenically unsaturated radicals or is a 2,3-epoxypropyl radical, R2 is a direct C-C bond or a group of formula -CRH2R-,-O-,-S-,-CO-or -SO2-, r is 1 to 20, R3 is hydrogen or methyl, R4, R5 and R7 are inert substituents, m, n and o are each independently 0, 1 or 2, p is 1 or 2, R6.is a radical of a bisphenol, X and Y are -SO2-or -C0-, and b) at least one compound of formula VIII, IX or X (VIII), (IX), (x), wherein A forms a maleimidyl nadicimidyl, allylnadicimidyl or methallylnadicimidyl system, and Rl4 and Rl5 are mono- or divalent aliphatic, cycloaliphatic, aromatic or heterocyclic radicals, and Rl6 is an aromatic radical of valency t and t is an integer from 3 to 12. The compounds can be used as matrix resins for the preparation of fibrous composite structures. |
