| 摘要 |
PURPOSE:To obtain a molded precursor product suitable as fibers and films without fluidity at room temperature, by blending a specific polyamide ester with a solvent, extruding and molding the resultant blend through a spinneret in a short time and cooling the molded product. CONSTITUTION:(A) An aromatic diamine component, such as p-phenylenediamine or 3,4'-diaminodiphenyl ether, is mixed and stirred with (B) an aromatic tetracarboxylic acid dialkyl ester component, such as 2, 5-dicarbomethoxyte rephthalic acid, to provide a polyamide ester having >=1.0 intrinsic viscosity. A solvent, such as N,N-dimethylacetamide, is then added thereto so as to pro vide 30-80wt.% content of the polyamide ester and blended. The resultant blend is subsequently discharged through a spinneret part heated at 80-200 deg.C and cooled to afford the aimed molded product.
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