Composite polymer devices for controlled release of...

Details Composite polymer devices for controlled release of... Composite polymer devices for controlled release of...

A - Human Necessities

01

M

A01M 1/00 (2006.01)

Patent

CA 2147078

COMPOSITE POLYMER DEVICES FOR CONTROLLED RELEASE OF SEMIOCHEMICALS ABSTRACT OF THE DISCLOSURE Composite polymer dispensers capable of controlled release of semiochemicals have been developed. The dispensers make use of a solid elasomer matrix reservoir which is at least partially surrounded by release rate controlling polymer membrane. The matrix materials are polyurethanes compatible with many types of semiochemicals and additives. The release rates of semiochemicals from the dispensers can be varied over a wide range by manipulation of the reservoir conditions and by selection of the type of polymer membrane surrounding the device. The dispensers can have a variety of forms and can be produced by a simple process. The semiochemical devices produced by this method are useful for managing insect and other pests through attraction to traps, for population monitoring or for mass trapping. The devices may also be used to dispense anti-aggregation pheromones or repellents in addition to use for mating confusion or disruption.

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