S. C. Johnson Son, Inc.

Robert E Kendrick

Cary E Manderfield

Leon C Samuelson

Kevin J Moe

Richard S Valpey, Iii

Paul A Clark

Richard S Iii Valpey

An aerosol dispenser assembly () has a container () holding a liquid product and a liquefied gas propellant for propelling the liquid product from the container, the propellant being present in a quantity of at most about 25% by weight of the contents of the container (). A valve () is attached to the container () for selectively dispensing the liquid product from the container () as a mist. The assembly () is configured such that the mist has a small particle size, is dispensed at an expeditious rate, and very little product is retained in the container () when the propellant is depleted.

Aerosol dispenser assembly having low volatile organic compound (VOC) content

An aerosol dispenser assembly ( ) having a container ( ) that contains a liquid product, and a propellant for propelling the liquid product from the container ( ). The propellant is a dual phase hydrocarbon propellant, is free of normal butane, and is at most 25% by weight of the contents of the container. A valve ( ) is attached to the container ( ) for selectively dispensing the liquid product from the container ( ) as a mist, the mist having an average particle size of less than 35 &mgr;m (0.0014&Prime;), over at least 75% of the life of the dispenser assembly ( ). The dispenser assembly ( ) is capable of dispensing over 98% by weight of the liquid product from the container ( ). A vapor tap ( ) is formed in the valve ( ) to facilitate thorough mixing of the propellant and the liquid product prior to dispensing, and a valve stem ( ) is disposed in the valve ( ). The valve stem ( ) defines at least one stem orifice ( ) for flow of the product during dispensing. The vapor tap ( ) has a diameter of about 0.013&Prime; (0.330 mm) to about 0.019&Prime; (0.483 mm). A dispenser cap ( ) is mounted on the valve stem ( ) for actuating the valve ( ) to dispense the liquid product. The dispenser cap ( ) defines an exit path ( ), through which the liquid product can be dispensed. A breakup bar ( ) is positioned in the exit path ( ) of the dispenser cap ( ) to break up the liquid product in order to reduce the size of the particles before the liquid product is dispensed.

Aerosol dispenser assembly and method of reducing the particle size of a dispensed product

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Oak Creek, WI, United States of America

Robert E Kendrick