公开(公告)号：US10954054B2

公开(公告)日：2021-03-23

申请号：US15980843

申请日：2018-05-16

申请人： DuPont Teijin Films U.S. Limited Partnership

发明人： Fenghua Deng ,  Peter N. Nugara ,  Stephen K. Franzyshen ,  Reps M. Haskins

IPC分类号： B65D81/34 ,  B32B27/08 ,  B32B27/36 ,  B32B27/30 ,  B32B27/34 ,  B32B1/02 ,  B65B1/02

摘要： A laminate includes the following substantially coextensive layers in the following order: (a) a non-sealable, self-supporting, thermoformable copolyester film layer having a first surface and a second surface, the second surface constituting an outermost, exposed surface of the laminate; (b) a laminating adhesive layer on the first surface of the thermoformable copolyester film layer; and (c) a self-supporting, thermoformable structural film layer having a first surface and a second surface, the first surface contacting the laminating adhesive layer. Polyethylene terephthalate constitutes at least 80% by weight of the self-supporting thermoformable copolyester film layer; the thermoformable structural film layer includes a polymer selected from the group consisting of polyamides, polypropylene, polyethylene, polyethylene terephthalate, ionomers, ethylene acrylic acid copolymers, ethylene vinyl acetate copolymers, polystyrene, ethylene vinyl alcohol copolymers and polyvinylidene chloride; the thermoformable copolyester film layer, the structural film layer and the laminate each shrink less than 5% in length and width upon exposure to boiling water for five seconds; and the laminate is thermoformable and its chloroform-soluble extractives meet the requirements of paragraph h(1) of 21 CFR § 177.1630 as defined herein.

公开(公告)号：US20210292076A1

公开(公告)日：2021-09-23

申请号：US17206357

申请日：2021-03-19

申请人： DuPont Teijin Films U.S. Limited Partnership

发明人： Fenghua Deng ,  Peter N. Nugara ,  Stephen K. Franzyshen ,  Reps M. Haskins

IPC分类号： B65D81/34 ,  B32B27/08 ,  B32B27/36 ,  B32B27/30 ,  B32B27/34 ,  B32B1/02 ,  B65B1/02

摘要： A laminate includes the following substantially coextensive layers in the following order:
(a) a non-sealable, self-supporting, thermoformable copolyester film layer having a first surface and a second surface, the second surface constituting an outermost, exposed surface of the laminate;
(b) a laminating adhesive layer on the first surface of the thermoformable copolyester film layer; and
(c) a self-supporting, thermoformable structural film layer having a first surface and a second surface, the first surface contacting the laminating adhesive layer.