초록 ▼

A film includes a core layer having an amorphous polyamide; two intermediate layers, disposed on opposite surfaces of the core layer, including a semicrystalline polyamide; two adhesive layers, each disposed on a surface of the respective intermediate layer, including a polymeric adhesive; and two o

A film includes a core layer having an amorphous polyamide; two intermediate layers, disposed on opposite surfaces of the core layer, including a semicrystalline polyamide; two adhesive layers, each disposed on a surface of the respective intermediate layer, including a polymeric adhesive; and two outer layers, each disposed on a surface of a respective adhesive layer, including an ethylene/alpha olefin copolymer, propylene homopolymer, or propylene/alpha olefin copolymer; and a second outer layer, disposed on a surface of a respective adhesive layer, including amorphous polyamide, semicrystalline polyamide, ethylene/alpha olefin copolymer, propylene homopolymer, or propylene/alpha olefin copolymer. The film can alternatively have a core layer including a polymeric adhesive, and two intermediate layers each having an amorphous polyamide. A method of packaging a product using these films, and a package, are also disclosed.

대표청구항 ▼

1. A multilayer film comprising:a) a core layer consisting essentially of an amorphous polyamide; b) two intermediate layers, disposed on opposite surfaces of the core layer, comprising a semicrystalline polyamide; c) two adhesive layers, each disposed on a surface of the respective intermediate lay

1. A multilayer film comprising:a) a core layer consisting essentially of an amorphous polyamide; b) two intermediate layers, disposed on opposite surfaces of the core layer, comprising a semicrystalline polyamide; c) two adhesive layers, each disposed on a surface of the respective intermediate layer, comprising a polymeric adhesive; and d) two outer layers, each disposed on a surface of a respective adhesive layer, comprising a material selected from the group consisting of amorphous polyamide, semicrystalline polyamide, ethylene/alpha olefin copolymer, propylene homopolymer, and propylene/alpha olefin copolymer; wherein the film has a total thickness of between 0.5 and 10 mils; andwherein the film exhibits a free shrink of less than 5% in the longitudinal direction, and less than 5% in the transverse direction, at 180.degree. F.