公开(公告)号：WO2021126458A1

公开(公告)日：2021-06-24

申请号：PCT/US2020/061304

申请日：2020-11-19

申请人： EXXONMOBIL CHEMICAL PATENTS INC.

发明人： MEI, Yuan ,  SHEN, Zhi-Yi ,  MU, Jiao Xiao

IPC分类号： C08L23/08 ,  B32B27/08 ,  C08J5/18 ,  B32B2250/03 ,  B32B2250/246 ,  B32B2307/72 ,  B32B2307/732 ,  B32B27/32 ,  C08L2203/162 ,  C08L2205/025 ,  C08L23/0815 ,  C09J2301/122 ,  C09J2301/312 ,  C09J2423/04 ,  C09J7/29 ,  C09J7/35

摘要： Provided herein are films comprising a core layer sandwiched between an outer layer and a sealing layer. The film has a seal initiation temperature at 5 N/15 mm between about 82°C and about 88°C, a 1% secant modulus m MD between about 300 MPa and about 400 MPa, and plateau seal strength at between about 16 and about 17 N/15 mm. While the outer layer and core layers comprise polyethylene compositions, the sealing layer comprises a polyethylene blend. The polyethylene blend comprises a plastomer and a polyethylene composition in an amount equal to or less than 50 wt%.