US 12,312,441 B2
Thermoformed packaging and methods of forming the same
Wade Jackson Kammauff, Charlottesville, VA (US); Seth Thomas Stewart, Charlottesville, VA (US); and Carlos Daniel Stagnaro, Charlottesville, VA (US)
Assigned to Klöckner Pentaplast of America, Inc., Gordonsville, VA (US)
Filed by KLÖCKNER PENTAPLAST OF AMERICA, INC., Gordonsville, VA (US)
Filed on Dec. 21, 2023, as Appl. No. 18/392,861.
Application 18/392,861 is a continuation of application No. 18/168,238, filed on Feb. 13, 2023, granted, now 11,891,479.
Application 18/168,238 is a continuation of application No. 17/528,980, filed on Nov. 17, 2021, granted, now 11,603,432, issued on Mar. 14, 2023.
Claims priority of provisional application 63/115,297, filed on Nov. 18, 2020.
Prior Publication US 2024/0199799 A1, Jun. 20, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C08G 63/672 (2006.01); B29C 33/42 (2006.01); B29C 48/08 (2019.01); B29C 48/18 (2019.01); C08G 63/183 (2006.01); C08G 63/553 (2006.01); B29K 67/00 (2006.01); B29K 105/00 (2006.01); B29L 31/00 (2006.01)
CPC C08G 63/672 (2013.01) [B29C 33/42 (2013.01); B29C 48/08 (2019.02); B29C 48/18 (2019.02); C08G 63/183 (2013.01); C08G 63/553 (2013.01); B29K 2067/003 (2013.01); B29K 2105/256 (2013.01); B29L 2031/7164 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A recycle stream with thermoformed web comprising:
recycled flakes and/or pellets of polyethylene terephthalate; and
recycled flakes and/or pellets of a thermoformed web, the thermoformed web comprising a thermoformed polymer film comprising:
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; and
a crystallization time at 120° C. of at least 2.5 minutes as measured by differential scanning calorimetry (DSC).