Multi-laminate fragrance release device

A multi-layered multi-laminate sustained release device capable of releasing fragrances at a controlled rate for a prolonged period of time comprising a first layer of a pressure and sensitive adhesive release liner for providing a protective peel strip for the device, a second layer of a silicone pressure sensitive adhesive for adhering the device to a substrate to which it is applied, a third layer of a fragrance impregnated matrix which is a silicone material selected from the group consisting of silicone elastomers, silicone elastomers having adhesive characteristics, and elastomeric silicone pressure sensitive adhesives, a fourth layer of a permeable facestock backing member on the surface of the device for controlling the rate of release of the fragrance from the impregnated matrix, the device including therein at least one impermeable backing member for preventing the fragrance of the impregnated matrix from interacting with the substrate to which it is applied, the fragrance in the impregnated matrix constituting of from about one-half of one percent to about forty percent by weight of the impregnated matrix, the matrix including a release rate modifying excipient for increasing the solubility of the fragrance in the matrix resulting in an increase in the release capability of the device.

A multi-layered multi-laminate sustained release device capable of releasing fragrances at a controlled rate for a prolonged period of time comprising a first layer of a pressure and sensitive adhesive release liner for providing a protective peel strip for the device, a second layer of a silicone pressure sensitive adhesive for adhering the device to a substrate to which it is applied, a third layer of a fragrance impregnated matrix which is a silicone material selected from the group consisting of tin catalyzed room temperature condensation cured liquid silicone rubbers, elevated temperature addition cured liquid silicone rubbers and silicone pressure sensitive adhesives, a fourth layer of a permeable facestock backing member on the surface of the device for controlling the rate of release of the fragrance from the impregnated matrix, the fragrance in the impregnated matrix constituting of from about one-half of one percent to about forty percent by weight of the impregnated matrix, the matrix including a release rate modifying excipient for increasing the solubility of the fragrance in the matrix resulting in an increase in the release capability of the device.

The device in claim 19 wherein the pressure and sensitive adhesive release liner is a polyester material.