	US 12,251,909 B2
	Multilayer structures with enhanced adhesive bonding force and articles comprising the same
Gang Wang, Shanghai (CN); Lianjiang Zhao, Shanghai (CN); Jingyi Xu, Shanghai (CN); Xiaobing Yun, Shanghai (CN); Jianping Pan, Shanghai (CN); Gaobing Chen, Shanghai (CN); and Jianliang Zhu, Shanghai (CN)
Assigned to Dow Global Technologies LLC, Midland, MI (US); and Rohm and Haas Company, Collegeville, PA (US)
Appl. No. 18/003,521
Filed by DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US); and ROHM AND HAAS COMPANY, Collegeville, PA (US)
PCT Filed Aug. 27, 2020, PCT No. PCT/CN2020/111758 § 371(c)(1), (2) Date Dec. 28, 2022, PCT Pub. No. WO2022/041053, PCT Pub. Date Mar. 3, 2022.
Prior Publication US 2023/0241871 A1, Aug. 3, 2023
Int. Cl. B32B 27/08 (2006.01); B32B 7/03 (2019.01); B32B 7/12 (2006.01); B32B 27/32 (2006.01); B32B 37/12 (2006.01)

CPC B32B 27/08 (2013.01) [B32B 7/03 (2019.01); B32B 7/12 (2013.01); B32B 27/32 (2013.01); B32B 37/1207 (2013.01); B32B 2037/1223 (2013.01); B32B 2307/518 (2013.01)]

13 Claims

1. A multilayer structure comprising:

(a) a biaxially-oriented polyethylene film comprising a skin layer with a matte surface and a core, the core comprising one or more core layers;

(b) a sealant film; and

(c) an adhesive adhering the sealant film to the matte surface of the skin layer of the biaxially-oriented polyethylene film; wherein the skin layer comprises, based on the total weight of the skin layer, from 20 to 80 wt. % of an ethylene-based polymer and from 80 to 20 wt. % of a propylene-based polymer, each of the ethylene-based polymer and the propylene-based polymer having a storage modulus, with a difference between the storage modulus of the ethylene-based polymer and the propylene-based polymer of greater than 40 megaPascals (MPa) at 110° C. and greater than 18 MPa at 120° C.