Disclosed are colored polyester compositions comprising a polyester having reacted therewith or copolymerized therein at least one residue of an anthraquinone compound having the formula ##STR1## wherein AQ is the residue of a 9,10-anthraquinone radical; R.sup.1 and R.sup.2 are the same or different and are unsubstituted or substituted alkyl, cycloalkyl or aryl; X is a group reactive with at least one of the functional groups of the monomers from which the polyester is prepared; and n is 1 or 2. The described anthraquinone compounds possess improved thermal stability and thus are not decomposed at the high temperatures at which polyesters are prepared. Also disclosed are shaped articles, particularly containers, fabricated from the colored polyester compositions.
本发明涉及一种着色聚酯组合物,其中包括聚酯,其已与或共聚合了至少一种
蒽醌化合物的残基,该
蒽醌化合物具有以下式子:##STR1## 其中AQ是9,10-
蒽醌基团的残基;R1和R2相同或不同,是未取代或取代的烷基,环烷基或芳基;X是与用于制备聚酯的单体的功能基团之一反应的基团;n为1或2。所述的
蒽醌化合物具有改善的热稳定性,因此不会在制备聚酯的高温下分解。还公开了由着色聚酯组合物制成的成型品,特别是容器。