Patent ID: 7501175
Filing Date: 2009-03-10
Classification: B29C,B29K,B65D,C08J,Y02P,Y10T

Abstract:
1. A two-part foamed polyethylene terephthalate (PET) container, comprising: an upper foamed polyethylene terephthalate (PET) part having a first integral skin and a first density, wherein the first integral skin has a first surface weight percent crystallinity; and a lower foamed polyethylene terephthalate (PET) part connected to the upper foamed polyethylene terephthalate (PET) part, wherein the lower part has a second integral skin and a second density, and wherein the second integral skin has second surface weight percent crystallinity; and wherein the second density is greater than the first density, and wherein the second surface weight percent crystallinity is greater than the first surface weight percent crystallinity.