US 12,460,348 B2
Polyester composition with improved dyeing properties
Robert Alton Usher, Jr., Charlotte, NC (US)
Assigned to Parkdale Incorporated, Gastonia, NC (US)
Filed by Parkdale Incorporated, Gastonia, NC (US)
Filed on Nov. 14, 2018, as Appl. No. 16/190,772.
Application 16/190,772 is a continuation of application No. 15/258,308, filed on Sep. 7, 2016, granted, now 10,174,454.
Claims priority of provisional application 62/324,467, filed on Apr. 19, 2016.
Claims priority of provisional application 62/217,268, filed on Sep. 11, 2015.
Prior Publication US 2019/0078256 A1, Mar. 14, 2019
This patent is subject to a terminal disclaimer.
Int. Cl. D06P 3/82 (2006.01); C08G 63/672 (2006.01); D01F 2/00 (2006.01); D01F 6/84 (2006.01); D01F 6/86 (2006.01); D06P 3/52 (2006.01); D06P 3/66 (2006.01)
CPC D06P 3/8228 (2013.01) [C08G 63/672 (2013.01); D01F 2/00 (2013.01); D01F 6/84 (2013.01); D01F 6/86 (2013.01); D06P 3/8223 (2013.01); D06P 3/8233 (2013.01); D06P 3/8238 (2013.01); D06P 3/8252 (2013.01); D06P 3/528 (2013.01); D06P 3/66 (2013.01); D10B 2201/02 (2013.01); D10B 2401/14 (2013.01); D10B 2501/00 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A filament comprising:
a polyester copolymer comprising about 4.5 and 5.5 percent adipic acid based on the total amount of polyester copolymer,
between about 630 and 770 parts per million (ppm) of pentaerythritol based on the total amount of polyester copolymer,
between about 3.4 and 4.2 percent polyethylene glycol based on the total amount of polyester copolymer, and
an amount of diethylene glycol that is less than 2 percent based on the total amount of polyester copolymer.