Device for controlled release of vapors and scents
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United States of America Patent
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-
Dec 10, 1991
Grant Date -
N/A
app pub date -
Jun 13, 1990
filing date -
Jun 13, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A controlled release device useful for the release of vapors or liquids is described. The device is a multilayered laminate consisting of a reservoir layer which incorporates an active compound, such as a perfume or fragrance or insect repellant, an impermeable membrane layer adjacent the reservoir layer and a diffusion rate limiting membrane layer adjacent the reservoir layer. The device preferably includes an adhesive layer for adhering the device to skin or a surface and an ornamental decorative layer.
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Cited Art Landscape
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