The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 1981
Filed:
Apr. 13, 1979
Samuel B Prussin, Big Sur, CA (US);
AE Development Corporation, Minneapolis, MN (US);
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, the shear forces experienced partially destabilize the barrier allowing the droplets to coalesce to form particles of controlled density and increased size. At least 10% of the droplets 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.