POLYESTER COMPOSITIONS OF LOW RESIDUAL ALDEHYDE CONTENT

摘要

A mixture of a polyester, such as poly(ethylene terephthalate) PET, and a second polymer which is selected from the group consisting of poly(vinyl alcohol), ethylene/vinyl alcohol copolymer and a suitable polyhydric alcohol when extrusion compounded exhibits a lower residual acetaldehyde content tha n does PET alone when similarly treated. The invention pertains to any polyest er used in the manufacture of bottles or containers which in turn are used to store consumer materials, especially food, beverages and most especially wat er.