A mixture of a polyester, such as poly(ethylene terephthalate) PET, and a second
polymer which is polyacrylamide, polymethacrylamide or copolymer of acrylamide
or methacrylamide 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.
