Wellmark International

Robin Rudolph

Min Xie

Stephanie Ponder

Eric Duffey

The present invention provides an insecticidal emulsion cleansing system comprising a clear oil-in-water (o/w) emulsion wherein the oil phase contains an ionic surfactant and an insecticide suspended together as nanometer sized particles in the water phase; and wherein the water phase contains an oppositely charged polymer. The insecticide is preferably a pyrethroid such as a natural pyrethrin or a synthetic pyrethroid. Suitable pyrethroids include pyrethroid esters and pyrethroid ethers.

High deposition cleansing system

Insect control through the use of an insect growth regulators is achieved by volatilization of the active compound from a point source in a spatial region such as a room, to diffuse through the air in the region toward objects in the region such as a carpet or a piece of furniture. The ability of the insect growth regulator to retain its activity when applied in this manner, even after periods of time in excess of one month following volatilization, is surprising in view of pre-existing methods of application that involved application of the insect growth regulator directly to the surface or object of interest in liquid form.

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Grand Prairie, TX, United States of America

Robin Rudolph