| 摘要 |
<p>An aromatic polyester amide having improved durability at high temperatures is formed by reacting together: [I] an alkanolamine represented by the general formula: NH2-R1-OH (A) (in which R1 is an aliphatic or alicyclic divalent radical having 2 to 12 carbon atoms), [II] an aromatic dicarboxylic acid or an ester-forming derivative thereof, and [III] an aliphatic glycol, an aromatic alcohol having an aromatic diol group or an ester-forming derivative of the said glycol or alcohol the reaction being conducted by heating the components I to III in the presence of a catalyst so as to effect amidation as well as esterification or transesterification, followed by polycondensation while distilling out excess monomers and eliminated components under reduced pressure.</p> |
