Fluid sprinkling – spraying – and diffusing – Processes – Including mixing or combining with air – gas or steam
Patent
1980-06-18
1982-12-21
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Processes
Including mixing or combining with air, gas or steam
B05B 1104
Patent
active
043645151
ABSTRACT:
A water-in-air emulsion or suspension containing a dispensible material is formed by stabilization of small droplets of aqueous liquid with an interfacial barrier of very fine, hydrophobic metal oxide particles such as silane modified silica. As the droplets are subjected to shear such as during passage through an orifice, and/or rubbing on the surface of the target, the shear forces experienced at least partially destabilize the barrier allowing the droplets to coalsesce to form particles of controlled density and increased size and eventually can be totally destabilized into an elegant cream or lotion. At least 10% of the droplets may coalesce into particles after leaving the orifice. Active ingredients, such as antiperspirants may be added to either the aqueous liquid phase or to the powder phase as long as they do not destabilize the suspension. A non-pressurized system comprises a container suitable for dispensing the suspension having a compartment receiving the suspension, a valve having an outlet orifice of a dimension adapted to impart a preselected shear and destabilization to the suspension and the container being adapted to enable the suspension to be propelled through the outlet orifice. Other dispensing systems may be utilized such as a shaker top container.
REFERENCES:
patent: 3140052 (1964-07-01), McCuiston
patent: 3488002 (1970-01-01), Mina
patent: 4015753 (1977-04-01), Bennett
AE Development Corporation
Jacobs Marvin E.
Kashnikow Andres
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