Patent ID: 7282196

Claim:
An antiperspirant product, comprising: (a) an oil-in water microemulsion comprising an oil phase and a water phase and being substantially free of alcohol, the microemulsion further comprising: one or more oil-in-water emulsifiers selected from polyethoxylated oil-in-water emulsifiers, polypropoxylated oil-in-water emulsifiers and polyethoxylated and polypropoxylated oil-in-water emulsifiers, wherein said microemulsion has a total emulsifier content of less than 20% by weight, based on a total weight of the microemulsion, and one or more antiperspirants, having a total content of 5% to 40% by weight, based on the total weight of the microemulsion, wherein said microemulsion is prepared by bringing a mixture comprising the water phase, the oil phase, and the one or more oil-in-water emulsifiers to a temperature within or above the phase-inversion temperature range, and subsequently cooling it to room temperature, and (b) a pump atomizer, comprising: a container, and an atomizer pump comprising a riser tube, a cylindrical chamber which is placed under pressure by depressing a piston, a pump valve which closes the cylindrical chamber and opens under a pressure of at least 0.7 MPa, and two or more turbulence channels radiating to a nozzle opening, said channels causing a flowing liquid to rotate relative to a flow axis.