Drug – bio-affecting and body treating compositions – Effervescent or pressurized fluid containing
Reexamination Certificate
2000-06-08
2002-03-19
Jones, Dameron L. (Department: 1619)
Drug, bio-affecting and body treating compositions
Effervescent or pressurized fluid containing
C424S401000, C424S493000, C424S070100, C424S070110, C424S700000, C514S024000, C514S881000, C514S944000
Reexamination Certificate
active
06358493
ABSTRACT:
BACKGROUND OF THE INVENTION
The subject matter of the present invention is the use of gasified particles for cosmetic treatments, especially for treating hair, in which the gasified particles contain at least one gas enclosed in a suitable enveloping material. The gas is released on contact of the enveloping material with moisture or water. The release of the gas can be accompanied by a special sensory, especially tactile or acoustic effect (pop effect). The subject matter of the present invention also includes an instant gel preparation made from a mixture of solid gel formers and a solid material producing an observable effect when contacted by moisture and a suitable cosmetic agent. In addition, the subject matter of the invention includes a method of using gasified particles as acoustic indicators for signaling the readiness of an instant preparation after addition to a liquid.
SUMMARY OF THE INVENTION
The basic purpose of the invention is to provide cosmetic compositions with new properties. One such property, for example, is a sensory effect, especially a tactile or acoustic effect, produced during use of the cosmetic composition. The conventional cosmetic action generally should not be impaired by these new properties, but ideally even improved because of them.
The instant preparations are characterized in that they contain solid, mostly powdery or granular materials, which when added to a liquid, especially water, dissolve with gentle stirring and produce a ready-to-use mixture. The consistence of the ready-to-use mixture for optimum application is reached so that it is not always easy for the user to detect the time point at which the desired consistency is reached.
These popping candies are described in various patent applications and patents including U.S. Pat. Nos. 3,012,893, 4,262,029, 4,275,083, EP 0 017 691, EP 0 326 692, EP 0 533 609 and WP 86/01376 as well as the references cited in the foregoing patents and patent applications. A description of the mechanism forming the basis for this pop effect and the parameters, which determine the extent, quality and time delay for the pop effect, are disclosed in EP 0 533 609. In the manufacture of popping candy usually sugar is melted and a gas, preferably carbon dioxide, is dispersed in the melt. When the melt has cooled, the sugar solidifies, the dispersed gas is enclosed and forms a solid foam. Granulates can be made, which contain gas bubbles in an envelope of solid sugar and in which the gas pressure in the bubbles is greater than the surrounding pressure. The gas can also be worked into the candy material under pressure in an autoclave. The solid enveloping material dissolves on contact with moisture until the stability of the envelope is reduced until it is overcome, or the surface tension is reduced until it is less than the force produced by the internal pressure. Then the enveloping material bursts and the gas escapes producing an observable acoustic or tactile effect.
It has been found that systems of this type can also be used in cosmetic applications, especially for hair treatment. The subject matter of the invention is thus the use of gasified particles, which contain at least one gas enclosed in a solid enveloping material. The enveloping material is selected so that the gas is released on contact of it with water or moisture during cosmetic treatments, especially treatment of hair. The subject matter of the invention thus includes a cosmetic composition with a content of at least one gas enclosed in a solid enveloping material or matrix. The solid material or matrix is selected so that the gas is released on contact with water or moisture.
The enclosed gas may be an inert gas or an appropriate gas mixture, and is preferably carbon dioxide, oxygen, nitrogen or air, of which carbon dioxide is especially preferred, since it provides an intense sound effect.
The enveloping material is preferably based on sugar, i.e. based on mono-, oligo- or polysaccharides. The sugar particularly can be sucrose, lactose, glucose, dextrose, maltose, fructose, disaccharides, trisaccharides, tetrasaccharides, pentasaccharides, hexasaccharides and higher oligo- or polysaccharides or sugar materials, such as sorbitol or their mixtures. The gas release is delayed when sorbitol or mixtures of it are used, because it dissolves more slowly in water. A delayed gas release or an extension of the effect connected with it can thus be achieved, since the gasified particles are combined with an aqueous, highly viscose, especially gel-form, preparation, with which they are mixed or contacted immediately prior to application. Preferably a mixture of different sugars, e.g. a mixture of sucrose, lactose and glucose, is used. The content of enclosed gas preferably amounts to from 0.05 to 15, especially preferably from 0.3 to 2.0 cm
3
per gram of total mass. The particle size amounts to preferably from 0.1 to 5 mm, especially preferably from 0.5 to 4.5 mm. The particles can be coated with a suitable material, e.g. with fats, shellac, gelatin or cellulose derivative compounds, such as hydroxyalkylcellulose, especially hydroxymethylcellulose, hydroxyethylcellulose or hydroxypropylcellulose. The coating material is preferably hydrophobic. The preparation of suitable granulates containing gases enclosed in a sugar envelope or matrix is disclosed in U.S. Pat. Nos. 3,012,893, 4,262,029, EP 0 533 609, EP 0 017 691 and the literature cited in those references. Suitable granulates are obtainable commercially, for example the popping candy of Zeta, Espacial S. A., Rubi, Spain. The manufacture of coated gasified particles is described in U.S. Pat. No. 4,275,083.
Cosmetic compositions according to the invention preferably comprise two components separate from each other prior to application. A first component contains at least one cosmetic effective ingredient in an aqueous cosmetic base and can be a conventional cosmetic preparation, e.g. a shampoo, a hair care composition, a hair styling gel or a hair styling foam. The second component comprises or contains particles, which contain at least one gas in a solid envelope. The two components can be either packaged in a two-component package, e.g. a commercial two-compartment package or in a set comprising two separate packages.
The cosmetic composition according to the invention contains preferably from 1 to 75, especially preferably from 3 to 30, percent by weight of the gasified particles. In principle the gasified particles can be used in combination with any arbitrarily selected cosmetic agent with an aqueous base to provide a sensory, especially acoustic and/or tactile, effect. The cosmetic agent can be present in the form of a hair or body cleansing agent, a hair care agent, a hair fixing agent, a hair dyeing or tinting agent, a bleaching agent or a permanent wave agent. The cosmetic composition can be applied in the form of a lotion, a foam, a milk, a gel, a cream or gel foam or in the form of an emulsion-forming hair care agent (hair rinse, conditioner).
The sugar matrix or enveloping material is dissolved on contact with water or moisture and the gas enclosed is released. For example, this is the case when the aqueous cosmetic preparation such as a shampoo, a care composition, a styling gel or a styling foam, comes into contact with moist hair. Because the sugar enveloping material has a high affinity for hair, after a suitable hair treatment and after washing the shampoo or care composition out, the treated hair has a positive volumetric effect.
The composition according to the invention can also be in the form of a substantially water-free single component composition. If present in the form of a dry shampoo, it also contains a water-active surfactant or surfactant mixture.
The composition according to the invention can contain conventional additive ingredients suitable for hair treatment compositions. These conventional additive ingredients include, for example, solvents, such as water and lower aliphatic alcohols, for example ethanol, propanol and isopropanol, or glycols, such as glycerol and
Birkel Susanne
Maurer Wolfgang
Steinbrecht Karin
Wendel Harald
Jones Dameron L.
Striker Michael J.
Wella Aktiengesellschaft
Wells Lauren Q.
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