公开(公告)号：US11904576B2

公开(公告)日：2024-02-20

申请号：US16614037

申请日：2018-03-15

Applicant: JIAPU INNOVATIVE FILM (KUNSHAN) CO., LTD.

Inventor： Jialiang Xia ,  Xuewen Gao ,  Yu Xia ,  Minyan Tang

IPC: B32B27/36 ,  B32B27/32 ,  B65D65/40 ,  B32B27/08 ,  B32B27/30 ,  B32B27/34

CPC classification number: B32B27/08 ,  B32B27/306 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B65D65/40 ,  B32B2250/05 ,  B32B2250/24 ,  B32B2307/518 ,  B32B2307/72 ,  B32B2553/00

Abstract: A high-performance multilayer films for packaging and the structure of the multilayer film is as follows: PO2/POY/PO1/POX/PO3 and PO2/POY/PO1/TIE2/PO3. The multilayer film is obtained by multilayer coextrusion and biaxial stretching. The total thickness of the multilayer film is 8 to 100 micrometers; the absolute values of the differences of the solubility parameters between the PO1 layer and the PO2 layer and between the PO2 layer and PO3 layer is greater than 0.5 (J·cm−3)1/2, and the absolute value of the difference of the cohesive energy density is greater than 5 J/cm3.

公开(公告)号：US11772371B2

公开(公告)日：2023-10-03

申请号：US17856540

申请日：2022-07-01

Applicant: JIAPU INNOVATIVE FILM (KUNSHAN) CO., LTD.

Inventor： Jialiang Xia ,  Xuewen Gao ,  Yu Xia ,  Minyan Tang

IPC: B32B27/08 ,  B32B7/12 ,  B32B27/30 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B65D65/40

CPC classification number: B32B27/08 ,  B32B7/12 ,  B32B27/306 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B65D65/40 ,  B32B2250/05 ,  B32B2250/24 ,  B32B2307/518 ,  B32B2307/72 ,  B32B2439/70 ,  B32B2553/00

Abstract: A high-performance multilayer film for packaging, the structure being: BL/TIE/PO1/POX/PO3, obtained once by multilayer coextrusion and biaxial stretching, wherein: the total thickness of the multilayer film is 8 to 100 micrometers; the absolute value of the difference of the solubility parameters between the PO1 and PO3 layer materials is ≥0.1 and ≤0.5, and the absolute value of the difference of the cohesive energy density is ≥3, and ≤5; the solubility parameter and cohesive energy density of the POX bridge material are based on one of the PO1 and PO3 layer materials, and it's transitioned to the other in a gradient way; the absolute value of the difference of the solubility parameters between adjacent layers from the PO1 layer to the POX bridge and the PO3 layer is ≤0.1 (J·cm−3)1/2, and the absolute value of the difference of the cohesive energy density is ≤3 J/cm3).