초록 ▼

A method of forming a non-foil barrier laminate structure which can be made into a container using radio-frequency heat-sealing techniques. The structure incorporates radio-frequency sealable ethyl acrylates which, in combination with additional thermoplastic material layers, produce a structure tha

A method of forming a non-foil barrier laminate structure which can be made into a container using radio-frequency heat-sealing techniques. The structure incorporates radio-frequency sealable ethyl acrylates which, in combination with additional thermoplastic material layers, produce a structure that can be formed, filled and sealed into cartons on commercially available form-fill-seal-machinery fitted with a radio frequency generator and sealing tool.

대표청구항 ▼

[ What is claimed is:] [1.] A process for forming a non-foil packaging structure, comprising the steps of:a) forming a laminate comprising:a paperboard substrate having a first surface and a second surface corresponding to two sides of said substrate;a radio-frequency sealable polymer layer selected

[ What is claimed is:] [1.] A process for forming a non-foil packaging structure, comprising the steps of:a) forming a laminate comprising:a paperboard substrate having a first surface and a second surface corresponding to two sides of said substrate;a radio-frequency sealable polymer layer selected from a group consisting of ethylene methylacrylate copolymer, ethylene butylacrylate copolymer, and ethylene ethylacrylate copolymer located on said first surface of said substrate; andat least one layer of thermoplastic material disposed on said radio-frequency sealable polymer layer;b) sealing said laminate to itself using a radio-frequency in a range of 1 to 300 MHz.