	US 11,753,512 B2
	Flame-retardant polyester film
Wen-Cheng Yang, Taipei (TW); Te-Chao Liao, Taipei (TW); Chia-Yen Hsiao, Taipei (TW); and Hao-Sheng Chen, Taipei (TW)
Assigned to NAN YA PLASTICS CORPORATION, Taipei (TW)
Filed by NAN YA PLASTICS CORPORATION, Taipei (TW)
Filed on Mar. 12, 2021, as Appl. No. 17/199,451.
Claims priority of application No. 109123857 (TW), filed on Jul. 15, 2020.
Prior Publication US 2022/0017707 A1, Jan. 20, 2022
Int. Cl. C08J 5/18 (2006.01); B29C 48/00 (2019.01); C08G 63/183 (2006.01); C08G 63/692 (2006.01); C08J 3/12 (2006.01); C08K 3/04 (2006.01); C08K 3/22 (2006.01); C08K 3/26 (2006.01); C08K 3/30 (2006.01); C08K 3/36 (2006.01); C08K 5/00 (2006.01); C08K 5/098 (2006.01); C08L 25/06 (2006.01); C08L 33/08 (2006.01); C08L 67/02 (2006.01)

CPC C08J 5/18 (2013.01) [B29C 48/022 (2019.02); C08G 63/183 (2013.01); C08G 63/692 (2013.01); C08J 3/12 (2013.01); C08K 3/04 (2013.01); C08K 3/22 (2013.01); C08K 3/26 (2013.01); C08K 3/30 (2013.01); C08K 3/36 (2013.01); C08K 5/0066 (2013.01); C08K 5/098 (2013.01); C08L 25/06 (2013.01); C08L 33/08 (2013.01); C08L 67/02 (2013.01); C08K 2003/2203 (2013.01); C08K 2003/2227 (2013.01); C08K 2003/2241 (2013.01); C08K 2003/265 (2013.01); C08K 2003/3045 (2013.01); C08K 2201/005 (2013.01); C08L 2201/02 (2013.01); C08L 2201/10 (2013.01); C08L 2203/16 (2013.01); C08L 2203/30 (2013.01); C08L 2207/20 (2013.01)]

8 Claims

1. A flame-retardant polyester film, comprising:

a physically recycled polyester resin formed by a plurality of physically recycled polyester chips; and

a chemically recycled polyester resin formed by a plurality of chemically recycled polyester chips and mixed with the physically recycled polyester resin, wherein the plurality of chemically recycled polyester chips further include chemically recycled electrostatic pinning polyester chips, and wherein the chemically recycled electrostatic pinning polyester chips contain at least one kind of electrostatic pinning additives, and the electrostatic pinning additives are metal salts;

wherein, expressed in percent by weight based on a total weight of the polyester film, a content of the electrostatic pinning additives in the polyester film is between 0.005% and 0.1% by weight;

wherein the polyester film further includes a flame-retardant additive, and the flame-retardant additive is dispersed in at least one of the physically recycled polyester resin and the chemically recycled polyester resin;

wherein the flame-retardant polyester film further comprises a black additive, and the black additive is selected from the group consisting of carbon black and black coloring materials; wherein, expressed in percent by weight based on the total weight of the polyester film, an added amount of the black additive is between 5% and 40% by weight.