| 摘要 |
<p>- 12 - O.Z. 0050/38136 Wholly aromatic polyester carbamides which form a liquid-crystalline fiber-forming melt below 300.degree.C and are composed of a) not less than 20 mol % of repeat units of the formula I I b) from 5 to 15 mol % of repeat units of the formula II II c) from 5 to 15 mol % of repeat units of the formula III III d) from 1 to 10 mol % of units of the formula IV IV e) a molar amount corresponding to the total amount of components b), c) and d) of repeat units of the formula V V the molar proportions of components a), b), c), d) and e) adding up to 100 mol % in each case, the preparation thereof and fibers, films, moldings and coatings prepared therefrom.</p> |
