METHODS FOR REDUCING SEEPAGE FROM WICK-BASED CONTROLLED RELEASE DEVICES, AND WICK-BASED DEVICES HAVING REDUCED SEEPAGE

摘要

Methods and devices include having a container (1) for holding a liquid with a viscosity µ, and a porous wick (5) with an average pore size of at least about 4 microns to about 50 microns and a porosity .epsilon. between about 0.20 to about 0.75, and having a length L and a total exposed surface area A exposed to the ambient air. The viscosity of the liquid and the dimensions of the wick are such that a quantity A/µL is in a range of about 4 x 10 -4 to about 18 cm/poise.