초록 ▼

An aerosol dispensing system includes a container having a valve-controlled opening for dispensing the container contents, which include hydrocarbon-adsorbent solids such as silica, hydrocarbon propellant adsorbed on such solids, and a weight ratio of hydrocarbon propellant to adsorbent solids rangi

An aerosol dispensing system includes a container having a valve-controlled opening for dispensing the container contents, which include hydrocarbon-adsorbent solids such as silica, hydrocarbon propellant adsorbed on such solids, and a weight ratio of hydrocarbon propellant to adsorbent solids ranging up to about 65 parts by weight of the contents, and a liquid composition that may include water, organic oils, alcohols, dispersed and dissolved metals, and metal salts. Water-encapsulating silica permits use of water in aerosol compositions, but prevents mixing of water with other substances in the composition until the composition is dispensed as an aerosol. Aerosol systems including containers with a valve-controlled opening and a valve for dispensing the container contents benefit from the addition of a capillary dip tube extending from the valve into the container contents where the contents are highly viscous. The capillary dip tube increases the velocity of the contents, and keeps them cohesive during movement through the tube. Aerosol system containers having a valve-controlled opening and a vapor tap valve for dispensing the container contents permit the aerosol dispensing of flammable compositions at controlled rates with acceptable flame extensions by dispersing vapor in the product emerging from the valve opening.

대표청구항 ▼

In an aerosol system for dispensing an antiperspirant where the system includes a metal container having a valve-controlled spray, a valve for dispensing the contents thereof, and a dip tube extending from said valve to said container contents, a propellant for said system, and wherein said contents

In an aerosol system for dispensing an antiperspirant where the system includes a metal container having a valve-controlled spray, a valve for dispensing the contents thereof, and a dip tube extending from said valve to said container contents, a propellant for said system, and wherein said contents includes an anti-perspirant material such as the astringent salts of multi-valent cations, divalent astringent salts, trivalent astringent salts, tetravalent astringent salts and aluminum astringent salts, wherein said anti-perspirant material if dissolved in water forms a material corrosive with respect to the exposed metal of said container, the improvement comprising: a super-hydrophobic powdered fumed silica having a particle size of between 0.007 microns and 15 nm, a surface area of from 120 m2/g to 225 m2/g as measured by the nitrogen adsorption, B.E.T., a bulk density of from 3 to 10 lbs./ft3, said super-hydrophobic silica being present in an amount of up to about 5.5% by weight of the container contents, water in an amount sufficient to increase the effectiveness of said anti-perspirant material, and said super-hydrophobic fumed silica encapsulating at least said water to form a multiplicity of encapsulated drops whose outer surface is the fumed silica and whose contents include at least said water, thereby to prevent contact between said water and any exposed metal of said metal container.