Patent ID: 8900611

Claim:
A sustained release dispenser of sex pheromone substances comprising: first and second chambers, each made entirely of a sex pheromone-permeable polymer material, wherein the polymer material that the first and second chambers are made of is the same, and wherein said polymer material is selected from the group consisting of polyolefins, acrylic polymers, polyesters, polyamides, methacrylic polymers and olefin-vinyl alcohol ester copolymers; (i) one or more linear aliphatic aldehydes having 10 to 18 carbon atoms, and (ii) one or more aldehyde-free saturated or one double bond-containing linear aliphatic acetates having 12 to 20 carbon atoms contained in the first chamber; and one or more aldehyde-free conjugated diene or 1,4-pentadiene structure-containing linear aliphatic acetates having 12 to 20 carbon atoms contained in the second chamber.