Dispenser for the controlled release of volatile substances

Details Dispenser for the controlled release of volatile substances Dispenser for the controlled release of volatile substances

A - Human Necessities

61

L

A61L 9/12 (2006.01) A01M 1/20 (2006.01) A61L 9/04 (2006.01)

Patent

CA 2504242

The invention relates to a dispenser for a volatile substance (4), which contains a reservoir (1) and two control elements. The first control element (6) exerts a control function that is dependent on the substance characteristics of the volatile substance (4) and the material characteristics of the constituents of said first control element (6). However, the second control element (7) exerts a control function that is independent of the substance characteristics of the volatile substance (4) and the material characteristics of the constituents of said first control element (6). The first control element (6) is located between the reservoir (1) and the second control element (7) and is permeable to at least one volatile substance (4). The second control element (7) consists of a material that is impermeable to the volatile substance and contains defined material cavities (8). Perfumes, crop protection agents, pheromones and repellents, which can be released in a controlled manner, constitute the volatile substances.

L'invention concerne un diffuseur servant à diffuser une substance volatile (4), ce diffuseur comprenant un réservoir (1) et deux éléments de contrôle. Le premier élément de contrôle (6) exerce une fonction de contrôle dépendante des propriétés de la ou des substances volatiles (4) et des propriétés des constituants dudit premier élément de contrôle (6). Le second élément de contrôle (7) exerce en revanche une fonction de contrôle indépendante des propriétés de la ou des substances volatiles (4) et des propriétés des constituants du premier élément de contrôle (6). Le premier élément de contrôle (6) est disposé entre le réservoir (1) et le second élément de contrôle (7) et il est perméable à au moins une substance volatile (4). Le second élément de contrôle (7) est constitué d'une matière imperméable à la substance volatile et il comporte des évidements définis (8). Lesdites substances volatiles sont notamment des parfums, des produits phytosanitaires, des phéromones et des répulsifs qui peuvent être libérés de façon contrôlée.

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