Thermoformed packaging and methods of forming the same
AssigneeKlöckner Pentaplast of America, Inc.
InventorsWade Jackson Kammauff, Seth Thomas Stewart, Carlos Daniel Stagnaro
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AssigneeKlöckner Pentaplast of America, Inc.
InventorsWade Jackson Kammauff, Seth Thomas Stewart, Carlos Daniel Stagnaro
Estimating the term…
In various aspects, the present disclosure pertains to thermoformed webs that comprise polymer films having one or more thermoformed cavities contained therein, the polymer films comprising a polymer blend of amorphous polyethylene terephthalate (APET) and a copolyester that comprises (a) dicarboxylic acid residues (e.g., dicarboxylic acid residues that comprise terephthalic acid residues and, optionally, one or more additional dicarboxylic acid residues) and (b) diol residues (e.g., diol residues comprising ethylene glycol residues and, optionally, one or more additional diol monomer residues). Other aspects of the disclosure pertain to methods of forming such thermoformed webs, packaged products comprising such thermoformed webs, and methods of recycling such thermoformed webs.
A thermoformed article comprising a polymer film and having one or more thermoformed cavities contained therein, wherein the polymer film comprises a polymer blend of 50 wt % to 95 wt % of amorphous polyethylene terephthalate (APET) and 5 wt % to 50 wt % of a copolyester that comprises (a) dicarboxylic acid residues comprising polyethylene terephthalate residues and (b) diol residues comprising (i) ethylene glycol residues and (ii) one or more additional diol monomer residues selected from neopentyl glycol residues, 1,4-cyclohexanedimethanol residues, or diethylene glycol residues, wherein the polymer film exhibits a crystallization time at 120° C. of at least 2.5 minutes as measured by differential scanning calorimetry (DSC).
Dependencies are inferred from the claim text.