Esb Incorporated

Thomas E Hankin

A process for making a porous dip tube for use in a pressurized container dispensing liquid material in which a mixture of polymers, one insoluble in the liquid material and a second soluble in a solvent, is extruded to form a tube and thereafter the second polymer is removed from the extruded tube to provide porosity in the wall of the tube. In use, the bulk of liquid material is forced from the bottom of the pressurized container through the tube longitudinally while gaseous matter passes through the wall of the tube to provide means to atomize the liquid material as it passes into the atmosphere.

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Morrisville, PA, United States of America

Thomas E Hankin