Patent ID: 6773735
Filing Date: 2004-08-10
Classification: B32B,B65D,C08L,Y10T

Abstract:
A multi-layered thermoformed food tray comprising first, second, and third layers heat-set into a rigid, dimensionally stable article having a bottom portion and a flange portion, wherein the first, second, and third layers comprise:a first polymeric layer comprising a polymer selected from the group consisting of PET, PEN, PETG, PCT, PCTA, PTT, and mixtures thereof; a second intermediate layer comprising a grafted or backbone co-polymer or ter-polymer of ethylene, a glycidyl acrylate, and optionally an acrylate selected from the group consisting of methacrylate, ethylacrylate, propylacrylate, butylacrylate, ethylhexylacrylate, and mixtures thereof; and a third polymeric layer comprising high density polyethylene, low density polyethylene, linear low density polyethylene, or a blend thereof; wherein the first layer comprises a blend of (i) virgin polymer and (ii) reprocessed polymeric materials from the first, second, and third layers.