Abstract: A container of toothpaste comprises two portions, one containing a stabilized alkali metal bicarbonate and the other containing an acid or acid salt which is reactive with the bicarbonate to produce carbon dioxide upon simultaneous dispensing of both portions of the toothpaste. Reaction of the bicarbonate and the acidic material, and resulting effervescence are avoided during storage by maintaining the two portions of the toothpaste in separated sections of the toothpaste container, from which they may be dispensed together. Upon dispensing, as by extrusion of both portions from a collapsible tube, they contact each other with little or no effervescent reaction at the interface of the two phases, but effervesce strongly during intimate mixing of the portions during toothbrushing. Preferably the toothpaste is extruded from the tube as an attractive plural-colored striped or variegated ribbon, with the different portions being differently colored to produce the striped or other plural-colored appearance.

Abstract: A dental cream of desirable rheological properties containing a hydrated alumina polishing material and high viscosity hydroxyethyl cellulose gelling agent.

Abstract: A substantially anhydrous oral composition is disclosed which is substantially devoid of normally staining antibacterial antiplaque agents and which contains an effective anticalculus amount of a bis(o-carboxyphenyl) ester of a C.sub.2-8 aliphatic dicarboxylic acid such as bis(o-carboxyphenyl) succinate.

Abstract: A method for stabilizing a cosmetic composition containing carrageenan, specifically, a toothpaste, wherein microwave radiation, preferably in the 0.8 to 3 gigahertz frequency range, is directed onto the toothpaste so as to raise its temperature to at least the gel-sol transition temperature of the carrageenan, after which the toothpaste is quiescently cooled to room temperature. The use of microwave radiation facilitates an even heating of the toothpaste, so that temperature sensitive components thereof are not adversely affected, and promotes excellent control of temperature regulation. Heating of the dentifrice, with improved thickening and stabilization thereof, is obtainable by passing it through a conduit while directing microwave radiation onto it and then filling it into suitable dispensing containers, or by filling the dentifrice into such containers and then subjecting them to microwave radiation.

Abstract: A method for stabilizing a cosmetic composition containing carrageenan, specifically, a toothpaste, wherein microwave radiation, preferably in the 0.8 to 3 gigahertz frequency range, is directed onto the toothpaste so as to raise its temperature to at least the gel-sol transition temperature of the carrageenan, after which the toothpaste is quiescently cooled to room temperature. The use of microwave radiation facilitates an even heating of the toothpaste, so that temperature sensitive components thereof are not adversely affected, and promotes excellent control of temperature regulation. Heating of the dentifrice, with improved thickening and stabilization thereof, is obtainable by passing it through a conduit while directing microwave radiation onto it and then filling it into suitable dispensing containers, or by filling the dentifrice into such containers and then subjecting them to microwave radiation.

Abstract: A visually clear dentifrice comprising sodium monofluorophosphate, an amorphous siliceous silica containing combined alumina polishing material and about 5-40 ppm of calcium ion to stabilize the dentifrice in an unlined aluminium tube. When a water-soluble dyestuff is present, the calcium ion stabilizes it against dye fading.

Abstract: Dentifrices containing chloroform and a siliceous agent have been found to cause instability and corrosion in unlined aluminium tubes. A chloroform/siliceous agent dentifrice formulation is disclosed wherein an additive comprising a mixture of phosphate esters is used to reduce or prevent corrosion and thus provide stability.

Abstract: A method for stabilizing a cosmetic composition containing carrageenan, specifically, a toothpaste, wherein microwave radiation, preferably in the 0.8 to 3 gigahertz frequency range, is directed onto the toothpaste so as to raise its temperature to at least the gel-sol transition temperature of the carrageenan, after which the toothpaste is quiescently cooled to room temperature. The use of microwave radiation facilitates an even heating of the toothpaste, so that temperature sensitive components thereof are not adversely affected, and promotes excellent control of temperature regulation. Heating of the dentifrice, with improved thickening and stabilization thereof, is obtainable by passing it through a conduit while directing microwave radiation onto it and then filling it into suitable dispensing containers, or by filling the dentifrice into such containers and then subjecting them to microwave radiation.

Abstract: A visually clear pigmented dentifrice in which a color-intensive conjugated pigment, such as a phthalocyanine is dispersed homogeneously throughout the clear dentifrice. The dentifrice is characterized as retaining color without substantial fading and with retention of clarity.

Abstract: There is disclosed a dentifrice formulation which is stable in the sense of not producing gassing as evidenced by visually discernable distention over a period of 168 days at 43.degree. C. in an unlined aluminum tube.The formulation comprises an aqueous dentally acceptable oral vehicle at least 27.5% by weight of the dentifrice comprising water and dispersed in the said oral vehicle from 10 to 40% by weight of the dentifrice of a neutral siliceous polishing agent having a stirred slurry pH (as herein defined) in the range from 5 to less than 6.5, and a stabilizing amount of monofluorophosphate ion, the dentifrice having a stirred slurry pH in the range from 5.5 to 8.

Abstract: There is disclosed a dentifrice formulation which is stable in the sense of not producing gassing as evidenced by visually discernable distention over a period of 168 days at 43.degree. C. in an unlined aluminium tube.The formulation comprises an aqueous dentally acceptable oral vehicle at least 27.5% by weight of the dentifrice comprising water and dispersed in the said oral vehicle from 10 to 40% by weight of the dentifrice of a neutral siliceous polishing agent having a stirred slurry pH (as herein defined) in the range from 6.5 to 7.5, and a stabilizing amount of monofluorophosphate ion, the dentifrice having a stirred slurry pH in the range from 5.5 to 8.

Abstract: A dentifrice composition containing a water-soluble monofluorophosphate and a calcium salt polishing agent, principally dicalcium phosphate, and a surface active agent containing an anionic phosphate mono- and di-ester mixture. An alkali metal fluoride may be present in minor amount to the monofluorophosphate. The phosphate ester mixture improves retention of soluble fluoride.

Abstract: There is disclosed a visually clear colored dentifrice comprising a liquid vehicle having a refractive index between about 1.36 and 1.47, up to about 10% by weight of a gelling agent, about 5-50% by weight of a polishing material having a refractive index similar to that of that of the said liquid vehicle, such that the said dentifrice is visually clear in appearance when the said polishing material is dispersed in the said liquid vehicle and about 0.004-1% by weight of a lake pigment insoluble in water and in the said liquid vehicle, the said lake pigment containing an inherently colorless substrate.

Abstract: Functional agglomerated speckles, for incorporation in dentifrices, include agglomerates of a water insoluble powdered functional material and water insoluble, ethanol soluble ethyl cellulose. Such speckles satisfactorily maintain their integrity and identity during processing of the dentifrice after addition of the speckles to the main dentifrice body but on storage, after packaging of the dentifrice in dispensing tubes, soften sufficiently so as to become essentially impalpable to one utilizing the dentifrice in brushing his teeth. Despite such softening the speckles continue to maintain their identity as speckles in the dentifrice. The speckles are especially useful in translucent or transparent gel dentifrices which contain components, such as flavoring and surface active agents, which may controllably soften the speckles on storage.

Abstract: A dental cream of desirable rheological properties containing a hydrated alumina polishing material and high viscosity hydroxyethyl cellulose gelling agent.

Abstract: Functional agglomerated speckles, for incorporation in dentifrices, include agglomerates of a water insoluble powdered functional material and a mixture of a water insoluble, ethanol soluble ethyl cellulose binder and a suitable water soluble binder, such as polyvinyl pyrrolidone. Such speckles, while more "soluble" or disintegrable in a flavored dentifrice than those based on ethyl cellulose binders without PVP, still can satisfactorily maintain their integrity and identity during processing of the dentifrice after addition of the speckles to the main dentifrice body, but on storage, after packaging of the dentifrice in dispensing tubes, they will soften sufficiently so as then to be essentially impalpable to one utilizing the dentifrice in brushing his teeth. Despite such softening the speckles continue to maintain their identity as separate small bodies in the dentifrice.

Abstract: There is disclosed a stable cosmetic stick deodorant comprising a polyhydric alcohol solidified by a fatty acid soap and containing about 0.1 to 70% alkali metal bicarbonate without the use of bacteriostats, and the method of making said stick deodorants.

Abstract: There is disclosed a stable cosmetic stick deodorant comprising a polyhydric alcohol solidified by a fatty acid soap and containing about 0.1 to 70% alkali metal bicarbonate without the use of bacteriostats, and the method of making said stick deodorants.

Abstract: Functional agglomerated speckles, for incorporation in dentifrices, include agglomerates of a water insoluble powdered functional material and a mixture of a water insoluble, ethanol soluble ethyl cellulose binder and a suitable water soluble binder, such as polyvinyl pyrrolidone. Such speckles, while more "soluble" or disintegrable in a flavored dentifrice than those based on ethyl cellulose binders without PVP, still can satisfactorily maintain their integrity and identity during processing of the dentifrice after addition of the speckles to the main dentifrice body, but on storage, after packaging of the dentifrice in dispensing tubes, they will soften sufficiently so as then to be essentially impalpable to one utilizing the dentifrice in brushing his teeth. Despite such softening the speckles continue to maintain their identity as separate small bodies in the dentifrice.

Abstract: Apparatus for recovering heat comprising an encapsulating outer wrapping having near opposite ends an air discharge opening and an opening adapted to receive an air intake blowing device; an inner corrugated galvanized sheet metal flue core; and two semi-circular baffles mounted in valleys of the inner core corrugations.