138 results about "Antiperspirants" patented technology

A process is provided for the preparation of a novel polyaluminum calcium hydroxychloride composition of enhanced efficiency for water treatment, paper sizing, and antiperspirant applications. The polyaluminum calcium hydroxychloride compositions are prepared via the acidification of higher basicity reaction products to form mid-to-high basicity final products. Two methods are provided for the preparation of higher basicity products, contemplated in the first, and an aqueous acid solution, such as hydrochloric acid, aluminum chloride, or a mixture thereof, is mixed with a strong alkaline calcium salt such as calcium oxide or calcium carbonate and aluminum powder at temperatures greater than 60° C. In a second method, bauxite, aluminum hydrate, or aluminum metal, and calcium aluminate are mixed with hydrochloric acid and are reacted at high temperatures and / or elevated pressures for a certain period of time whereby, when the reaction is complete, the mixtures are filtered to obtain clear solutions. The final PAC-Ca solutions may be dried to powder to have a wide range of basicities from about 40% to about 80%. At lower basicities, the polyaluminum calcium hydroxychloride sales are used preferably as antiperspirants, while at higher basicities, the solutions are used preferably as water treatment chemicals.

A deodorant or antiperspirant soft solid composition is filled into dispensing containers by injection moulding, i.e. under pressure, preferably in the vicinity of its normal setting temperature. The deodorant or antiperspirant composition is preferably continuously produced in a screw extruder, especially a twin screw extruder, controlled to deliver the composition in a suitably viscous state under low shear and particularly for formulations in which a particulate antiperspirant is suspended in a fluid carrier. The pressure in the injection head at the point of injection is greater than 120 kPa and in many instances from 800 to 2000 kPa. The combined process offers benefits for controlled fill of dispensing containers, particularly for formulations incorporating sensitive ingredients and offers tolerance in composition temperature at the time of fill.

Antiperspirant actives that produce practically no visible white residue, even against a black background is provided by the reduction of the particle size, using a refractive index modifier, to a point where the antiperspirant active on application provides no discernible whiteness.When formulated into an antiperspirant stick, the antiperspirant actives produce an improved combination of functional properties, including excellent antiperspirancy, smooth skin feel, nontacky, quick drying and leave no visible residue.The exceptionally high surface area of the antiperspirant active results in rapid and efficient delivery of the active to the sweat glands and possible absorption. The absence or reduced quantity of suspending and flow enhancing agents, of gellant and surfactant, is believed to improve the antiperspirant active's ability to physically reach the sweat glands and improve efficacy.

Antiperspirant compositions for personal body care are produced as a non-aerosol, stick, soft solid, cream, gel, non-sprayable suspension, non-sprayable solution, or impregnated on a substrate and include at least one antiperspirant, at least one oil as a carrier, said oil being liquid in normal conditions, 0-7 percent by weight of free water relative to the weight of the composition, and at least one selected alkyl-modified polyether.

Cosmetic compositions in the form of soft solids having in combination an improved resistance to syneresis and retained efficacy and which contain a particulate antiperspirant suspended in a water-immiscible carrier liquid structured by a structurant system are obtainable by employing as carrier liquid a mixture of a hydrocarbon oil and an aromatic ester oil in a weight ratio of from 1:2 to 15:1 and as structurant system from 5.5 to 20% in total of a di or triblock alkylene / arylene block copolymer and an organic wax in a weight ratio to each other of from 5:1 to 30:1.

Apparatus is described for use with a container for dispensing a composition including a deodorant and / or an antiperspirant, the container including a movable platform. The apparatus includes a container holder, which includes: an upper portion, which includes one or more user input elements; and a lower portion, including a driving unit and a power source. The power source is operative to drive the driving unit to move the movable platform of the container, in response to actuation of the one or more user input elements. Other applications are also described.

An aerosol antiperspirant composition is provided. The aerosol antiperspirant composition includes a propellant and an antiperspirant composition. The antiperspirant composition includes one or more liquid materials, wherein the one or more liquid materials comprise one or more non-volatile silicone fluids having a concentration from 40% to about 70% by weight of the antiperspirant composition; antiperspirant active particulates having a concentration from about 16% to about 32% by weight of the antiperspirant composition; one or more non-antiperspirant active particulates that are substantially inert, wherein the one or more non-antiperspirant active particulates that are substantially inert have a concentration from 10% to 30% by weight of the antiperspirant composition; and wherein the antiperspirant composition has a total particulate concentration from 30% to about 60% by weight of the antiperspirant composition.

Cosmetic or dermatological compositions which comprise at least one piperidinium salt, preferably a 4-[(2-cyclopentyl-2-hydroxyphenylacetyl)oxy]-1,1-dimethyl-piperidinium salt, and the use thereof, particularly as antiperspirants. This Abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Spray compositions and particularly anhydrous aerosol compositions containing particulate antiperspirant actives exhibit a tendency for nozzle blockage, impeding discharge of the contents when a polyol humectant, such as glycerol, is blended into its base composition. The problem is overcome or at least ameliorated by preparation of a base composition, suitable for employment in conjunction with a propellant, that contains a low molecular weight (liquid) polyethylene glycol (PEG) as humectant, and particularly a PEG of molecular weight 150 to 500.

In some aspects a process for forming deodorant or antiperspirant soft solid in which a mobile deodorant or antiperspirant composition is filled into dispensing containers by injection moulding, i.e. a process in which the deodorant or antiperspirant composition is filled under pressure. The composition at the time of injection moulding is preferably in the vicinity of its normal setting temperature. The deodorant or antiperspirant composition is preferably continuously produced in a screw extruder, especially a twin screw extruder, which is controlled to deliver the composition in a suitably viscous state under low shear, at a temperature in the vicinity of its normal setting temperature. Use of the twin screw extruder is particularly advantageous for formulations in which a particulate antiperspirant is suspended in a fluid carrier. It is injected into the container at a head pressure at the point of injection that is greater than 120 kPa and in many instances from 800 to 2000 kPa in the injection head. The combined process offers benefits for controlled fill of dispensing containers, particularly for formulations incorporating sensitive ingredients and offers tolerance in composition temperature at the time of fill.

Hair removal, especially from armpits damages skin, for example by irritating it, and this can be exacerbated by the application of antiperspirants to control body odour generation. In the present invention, the deleterious effects of hair removal, eg shaving, and antiperspirancy can be ameliorated by employing antiperspirant compositions containing a natural oil and glycerol to a combined concentration of from 1.5 to 15% by weight and in a weight ratio of from 4:1 to 1:4.