Device for controlled release of vapors and scents

Details Device for controlled release of vapors and scents Device for controlled release of vapors and scents

1990-06-13

1991-12-10

Lesmes, George F.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

428905, 424448, 424449, A61L 1546

Patent

active

050717049

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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