Moisture-proof resealable pouch and container

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS The pouches, closures and associated containers of the present invention have many uses, including food product packages, but are especially useful for packages containing continuous length moisture-curable products.
Such products are particularly sensitive to ambient moisture which tends to penetrate through known sealing devices used to dispense the product in bulk form, causing premature curing and waste of the product.
A number of alternative preferred embodiments of the magnetic closure system according to the present invention are described below.
In its simplest form, the magnetic closure system consists of two magnetic strips bonded to opposing sides of a package opening.
The magnetic strips seal the package due to the mutual attraction between the opposing magnetic strips along substantially their entire lengths.
The magnetic strips may both be magnets or one may be a magnet and the other may be a non-remanently magnetizable strip.
Magnetic strips useful in the invention include permanent magnet strips (referred to as "magnet strips") which are remanently magnetized with a relatively high remanent magnetization/saturation magnetization ratio and a high enough coercivity to prevent significant demagnetization, with magnetization (vector) components perpendicular to the long dimension of the strip, and/or magnetized with alternating polarity in adjacent subregions of the strip (e.
g.
zones or bands with dimensions small relative to the length of the strip).
Also included in the definition of magnetic strips for the purposes of the present invention are non-remanently magnetizable strips of ferromagnetic or ferrimagnetic material which are designated "non-remanently magnetizable" because their coercivity is too low to prevent substantial demagnetization when removed from the magnetizing fields of a magnetic strip.
Preferred closures of the invention utilize a first magnetic strip and a second magnetic strip, with a mutually attractive force acting between the first and second strips over substantially the entire length of the strips