US 11,655,317 B2
Ethylene-vinyl alcohol copolymer resin composition, ethylene-vinyl alcohol copolymer film formed therefrom, and multilayer structure containing the same
Chih Chieh Liang, Taipei (TW); and Wen Hsin Lin, Taipei (TW)
Assigned to CHANG CHUN PETROCHEMICAL CO., LTD., Taipei (TW)
Filed by CHANG CHUN PETROCHEMICAL CO., LTD., Taipei (TW)
Filed on Mar. 22, 2022, as Appl. No. 17/701,219.
Claims priority of application No. 202110666690.4 (CN), filed on Jun. 16, 2021; and application No. 110121920 (TW), filed on Jun. 16, 2021.
Prior Publication US 2022/0403076 A1, Dec. 22, 2022
Int. Cl. C08F 216/04 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01)
CPC C08F 216/04 (2013.01) [B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/306 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 2250/24 (2013.01); B32B 2307/538 (2013.01)] 12 Claims
 
1. An ethylene-vinyl alcohol copolymer resin composition in the form of pellet comprising an ethylene-vinyl alcohol copolymer resin, wherein the ethylene-vinyl alcohol copolymer resin composition has a surface with a root mean square gradient (Sdq) ranging from 0.0005 to 13 and its largest outer diameter or long axis is 1.5 to 5.0 mm.