초록 ▼

A transparent multilayer structure is disclosed such as a flexible self-supporting container for a flowable food product such as fruit juice. The transparent multilayer structure possesses superior barrier properties to oxygen, water vapor and aromatic gases. The multilayer structure may include an

A transparent multilayer structure is disclosed such as a flexible self-supporting container for a flowable food product such as fruit juice. The transparent multilayer structure possesses superior barrier properties to oxygen, water vapor and aromatic gases. The multilayer structure may include an exterior layer having a metal oxide deposition laminated to an interior layer through use of an adhesive. In one embodiment, the metal oxide is SiOx where x has a value between 1.5 and 2.2 thereby allowing for a transparent multilayer structure. The metal oxide may be deposited on the exterior layer through a number of various methods. An exemplary method is plasma-enhanced chemical vapor deposition. The exterior layer may be composed of a polymer material integrated with a clay mineral between 0.1% and 10% weight of the polymer material. The polymer material may be selected from the group consisting of polyamide, polyethylene terephthalate, copolymers of polyethylene terephthalate and mixtures thereof.

대표청구항 ▼

[ I claim as my invention the following:] [1.]1. A self-supporting transparent container for flowable materials, the self-supporting transparent container comprising:an exterior film composed of a polymer material integrated with a clay mineral between 0.1% and 10% weight of the polymer material, th

[ I claim as my invention the following:] [1.]1. A self-supporting transparent container for flowable materials, the self-supporting transparent container comprising:an exterior film composed of a polymer material integrated with a clay mineral between 0.1% and 10% weight of the polymer material, the polymer material selected from the group consisting of polyamide, polyethylene terephthalate, copolymers of polyethylene terephthalate and mixtures thereof;a metal oxide deposition on the exterior film having a thickness range of approximately 5 to approximately 500 nanometers and having a formula of MO.sub.x where x has a range of approximately 1.5 to approximately 2.5 and M is selected from the group consisting of silicon, aluminum and iron;an interior film juxtaposed to the metal oxide deposition; anda flexible gusseted panel secured to a marginal portion of a plurality of side walls of the container and folded inwardly therebetween.