Containment device for vapor phase transfer materials
AssigneeAutopax, Inc.
InventorJohn T. Inglis
Life of this patent
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Abstract
A multi-layer package structure useful for vapor phase transfer in an ambient atmosphere, wherein said package protects sensitive contents placed therein such as a desiccant, deodorizer or perfumer by containing the product between a vapor impermeable backing layer, a vapor permeable flexible layer, and a vapor impermeable cover layer. The two outer layers of the package are impermeable to both the contents of the package and the exterior atmosphere, preventing the diffusion of the contents into the atmosphere and protecting the package contents from the outside atmosphere. Upon opening the package by separating the peelable impermeable front web from the permeable layer or membrane the vapors from the from the contents are now free to move through the permeable web into the atmosphere.
Claims9
An apparatus useful for vapor phase transfer in an ambient atmosphere comprising:
- a vapor impermeable backing layer of a material having an inner surface and an outer surface, said inner surface having a first adhering means;
- a vapor permeable flexible layer permanently adhered to said inner surface of said backing layer and forming a sealed compartment adapted to contain at least one vapor phase active material;
- a vapor impermeable cover layer having an outer surface and an inner surface, said inner surface having a second adhering means, said inner surface being removably adhered to said vapor permeable flexible layer;
- whereby separation of said cover layer from said vapor permeable flexible layer permits vapor phase transfer between said at least one vapor phase active material and said ambient atmosphere.
A process for producing an apparatus useful for vapor phase transfer in an ambient atmosphere comprising:
- providing a vapor impermeable backing layer of a material having an inner surface and an outer surface, said inner surface having a first adhering means;
- providing a vapor permeable flexible layer permanently adhered to said inner surface of said backing layer and forming a sealed compartment adapted to contain at least one vapor phase active material;
- and
- providing a vapor impermeable cover layer having an outer surface and an inner surface, said inner surface having a second adhering means, said inner surface being removably adhered to said vapor permeable flexible layer;
- wherein separation of said cover layer from said vapor permeable flexible layer permits vapor phase transfer between said at least one vapor phase active transfer material and said ambient atmosphere.
Dependencies are inferred from the claim text.