The present disclosure relates to masterbatch compositions used for preparing articles, preforms or containers comprising a base polyester, a transition metal-based oxidation catalyst, an alkali metal compound, and an alkaline earth metal compound. The masterbatch compositions have desirable viscosity characteristics and the prepared articles, preforms or containers using these masterbatch compositions have desirable mechanical, visual and gas barrier properties.
本公开涉及用于制备物品、预制件或容器的母料组合物,该母料组合物由基础聚酯、过渡
金属基氧化催化剂、碱
金属化合物和碱土
金属化合物组成。母料组合物具有理想的粘度特性,使用这些母料组合物制备的制品、预制件或容器具有理想的机械、视觉和气体阻隔特性。