Inventors:
Frederick W. Gander - Kennett Square PA
Erhard F. Hoegger - Wilmington DE
William P. Kane - Bon Air VA
Assignee:
E. I. Du Pont de Nemours and Company - Wilmington DE
International Classification:
C08G 3910
Abstract:
Blends are provided including: 99 to 95% polyethylene terephthalate and 1 to 5% of a terpolymer of at least 65% ethylene with (a) at least 5% by weight of a vinyl ester of a lower (1-6 carbon) saturated monobasic aliphatic carboxylic acid and (b) 0. 5 to 10% by weight of an acid of the group consisting of acrylic and methacrylic acids, said terpolymer having been made by a free-radical initiated polymerization of a mixture of ethylene, said ester and said acid. Articles, such as cooking containers or trays, are provided made using such polyethylene terephthalate/terpolymer blends or made using sheets made from such blends. Such trays may be used for cooking food at temperatures up to about 400. degree. F. Methods are provided of making such trays including thermoforming such sheets made from such blends.
