A mixture of a polyester, such as poly(ethylene terephthalate) PET, and a suitable stabilizer selected from the group consisting of polyhydric alcohol-containing polymers and copolymers derived from 2-propenoic acid ester monomers, when extrusion compounded exhibits a lower residual acetaldehyde content than does PET alone when similarly treated. The invention pertains to any polyester used in the manufacture of bottles or containers which in turn are used to store consumer materials, especially food, beverages and most especially water.
一种由聚酯和适当的稳定剂混合而成的复合材料,聚酯可以是聚
对苯二甲酸乙二醇酯(PET),稳定剂可以是从2-
丙烯酸酯单体衍生的含多羟基醇的聚合物和共聚物。当挤出复合时,与单独使用PET相比,该复合材料表现出更低的残留
乙醛含量。该发明涉及用于制造瓶子或容器的任何聚酯,这些瓶子或容器用于存储消费品,特别是食品、饮料和尤其是
水。