US 12,454,613 B2
Biodegradable resin and film prepared thereby
Zongyan Gui, Shanghai (CN); Ruxu Wang, Shanghai (CN); Ke Wang, Shanghai (CN); Takashi Arai, Shanghai (CN); and Isao Manabe, Shanghai (CN)
Assigned to Toray Industries, Inc., Tokyo (JP)
Appl. No. 17/910,907
Filed by Toray Industries, Inc., Tokyo (JP)
PCT Filed Mar. 19, 2021, PCT No. PCT/CN2021/081672
§ 371(c)(1), (2) Date Sep. 12, 2022,
PCT Pub. No. WO2021/185339, PCT Pub. Date Sep. 23, 2021.
Claims priority of application No. 202010199536.6 (CN), filed on Mar. 19, 2020; application No. 202010200049.7 (CN), filed on Mar. 19, 2020; application No. 202011293825.9 (CN), filed on Nov. 18, 2020; and application No. 202011297029.2 (CN), filed on Nov. 18, 2020.
Prior Publication US 2023/0193021 A1, Jun. 22, 2023
Int. Cl. C08L 67/04 (2006.01); B65D 65/40 (2006.01); B65D 65/46 (2006.01); C08J 5/18 (2006.01); C08K 5/092 (2006.01); C08K 5/1545 (2006.01); C09J 7/29 (2018.01)
CPC C08L 67/04 (2013.01) [B65D 65/40 (2013.01); B65D 65/466 (2013.01); C08J 5/18 (2013.01); C08K 5/092 (2013.01); C08K 5/1545 (2013.01); C09J 7/29 (2018.01); C08J 2367/04 (2013.01); C08J 2467/04 (2013.01); C08L 2201/06 (2013.01); C08L 2205/025 (2013.01); C08L 2205/03 (2013.01); C09J 2467/006 (2013.01)] 40 Claims
 
1. A biodegradable resin, having an intrinsic viscosity of 1.0 dL/g or more, and having a loss rate of intrinsic viscosity of 10% or more after treatment at 70° C. and 85% RH for 6 hr.