| 摘要 |
Wholly aromatic mesomorphic polyether ester imides which form a liquid-crystalline fiber-forming melt below 320 DEG C. and are composed of (a) from 5 to 35 mol % of repeat units of the formula I <IMAGE> (I) (b) from 5 to 35 mol % of repeat units of the formula II <IMAGE> (II) <IMAGE> where X is a chemical bond, -O-, -S-, -SO2-, -CO-, -Ch2- or =C(CH3)2, and n is 0 or 1, (c) from 15 to 30 mol % of repeat units of the formula III <IMAGE> (III) (d) a molar amount corresponding to the total amount of (b) plus (c) minus (a) of repeat units of the formulae IV and/or V <IMAGE> (IV) <IMAGE> (V) (e) repeat units of the formula VI <IMAGE> (VI) the mole percentages of components a, b, c, d and e adding up to a 100 mol % in each case, the preparation thereof and fibers, films and molding prepared therefrom.
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