公开(公告)号：US12290974B2

公开(公告)日：2025-05-06

申请号：US17285218

申请日：2019-10-17

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Ling Fan ,  Hongtao Shi ,  Maria Soliman ,  Shan Qin ,  Shengming Cui ,  Priya Garg ,  Jacobus Christinus Josephus Franciscus Tacx

IPC: B29C48/21 ,  B29C48/00 ,  B29C48/08 ,  B29K23/00

Abstract: The present invention related to a film comprising multiple co-extruded film layers, the film having a length and a width, and a thickness defined as the dimension of the film perpendicular to the plane defined by the length and the width, wherein the film is a bi-axially oriented film comprising at least a core layer A, having a first and a second surface, and one or two sealing layer(s) B, wherein the core layer A comprises a polypropylene, and wherein the sealing layer B comprises >50.0 wt % of a polyethylene comprising moieties derived from ethylene and moieties derived from an α-olefin comprising 4 to 10 carbon atoms, the polyethylene having a density of ≥870 and ≤920 kg/m3 as determined in accordance with ASTM D1505 (2010), with regard to the total weight of the sealing layer B, wherein the sealing layer B directly adheres to one of the first or second surface of the core layer A. Such film allows for the production of a sealed package having a sufficiently high sealing strength at reduced sealing temperatures, also referred to as the seal initiation temperature.

公开(公告)号：US20190308360A1

公开(公告)日：2019-10-10

申请号：US16463106

申请日：2017-12-28

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Chao Liu ,  Ying Na ,  Shuailei Ma ,  Yonglei Xu ,  Kapil Chandrakant Sheth ,  Shan Qin

IPC: B29C48/154 ,  B29C48/00 ,  B29C48/05 ,  B29C48/28 ,  B29C48/88

Abstract: A method of making a wire with multiple coating layers can comprise: preheating a wire to a temperature Tpreheat to form a pre-heated wire; using a first extruder to coat the pre-heated wire with the first coating material to form a first coated wire; passing the first coated wire to a second extruder without storing the first coated wire, coating the first coated wire with a second coating material to form a second coated wire; and cooling the second coated wire.