Drug – bio-affecting and body treating compositions – Effervescent or pressurized fluid containing – Organic pressurized fluid
Reexamination Certificate
2001-10-01
2003-06-24
Dees, Jose′ G. (Department: 4616)
Drug, bio-affecting and body treating compositions
Effervescent or pressurized fluid containing
Organic pressurized fluid
C424S070100, C424S070310, C424S400000, C424S401000, C424SDIG001, C514S945000
Reexamination Certificate
active
06582679
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The subject matter of the present invention is a wax product for treatment of or setting up a human hairstyle. The wax product of the present invention contains a composition comprising a wax or wax-like substance, a non-volatile hydrophobic oil that is a liquid at room temperature and an easily volatilized hydrophobic substance that is a liquid or gaseous material at room temperature.
2. Description of Related Art
Styling wax compositions are known products for hair treatment. They particularly find application in putting short to medium length hair in a fashionable hairstyle and impart hold and luster as well as stabilize, condition and fix the hairstyle. They provide the hairstyle with shape and luster. Conventional hair wax is usually provided in cups or other vessels and its action is based on the following principle: Product is removed with the fingers. The wax is distributed on the surface of the hand and then melted or at least considerably softened by the heat of the hand. It is possible to work the otherwise too hard wax into the hair because of this softening or melting. The wax is worked into the hair in a softened or more or less liquid state. Then it cools and again reaches its original consistency. It hardens and the hairdo obtained has stability and hold and frequently a slightly wet look. The limits of the product performance of conventional styling wax products are established by this action principle. So that the wax may be worked into the hair to a sufficient extent, it must not be too hard to be removed with the hand, and the melting or softening point must be near the body temperature. On the other hand, only moderate product performance is attained regarding hair conditioning and hold and volume of the hairdo. In addition, the load on the hair is comparatively high. Of course an improved fixing and improved hold may be obtained with a harder wax composition, however the harder the wax, the harder is the product mass and the more difficult it is to process it and work it in the hair.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a hair wax product, which improves the hold of the hairstyle and conditions the hair. At the same time the product mass should be easily and satisfactorily processed and worked in the hair.
It is also an object of the present invention to provide a hair wax product that is not removed from its cup or other container with the fingers, which can lead to impurities in the residual product remaining in the cup, and, which avoids contamination of the product mass.
It has now been found that these requirements were fulfilled by a wax product for treatment or preparation of a hairdo of a person, which contains a composition comprising a wax or wax-like substance, non-volatile hydrophobic oil that is a liquid at room temperature and an easily volatilized hydrophobic substance that is a gas or liquid at room temperature. The wax product according to the invention can either be a cup product with a waxy or wax-like consistency or it can be a non-aerosol spray product from which a spray or foam is generated from the wax-containing composition. This latter composition is preferably a liquid and contains a comparatively high proportion of especially easily volatilized substances, such as pentane. The hair wax product according to the invention can also be an aerosol spray product. The wax material is preferably dissolved or suspended in a liquid hydrophobic propellant gas in the case of the aerosol spray product.
By using easily volatilized substances, such as pentane, isododecane or others, a soft easily processed and easily worked-into-the-hair wax can be obtained, which hardens on the hair by evaporation of the easily volatilized ingredient. The hair wax product according to the invention provides improved conditioning, more volume and lesser load on the treated hair in comparison to the conventional hair wax. Tough wax-like compositions (cup or pan waxes) to sprayable liquid compositions (spray waxes) are obtained by variation of the type and amount of the easily volatilized substances in the composition according to the invention. Waxes having especially large surface areas (wax snows) can be made by using gaseous substances (propellant gases, such as propane, butane, and the like). These wax snows are easily processed and gently worked into the hair in spite of the stronger fixing effect.
The hair wax product according to the invention for treatment or preparation of a human hairstyle comprises a waxy-like composition comprising
(A) at least one wax or wax-like substance;
(B) at least one non-volatile hydrophobic oil that is liquid at room temperature; and
(C) at least one easily volatilized, hydrophobic substance that is liquid or gaseous at room temperature.
The term “room temperature”, as usual, means a temperature of 20° C., or about 20° C.
The “wax-like, waxy or wax-form substances” are those which fall under the definition of “wax” in Ullmanns' Encyclopedia for Industrial Chemistry, 4th Edition, Volume 24, page 3. According to this definition these substances are plastic at 20° C., solid to brittle, gross to fine crystalline, transparent to opaque, but not glassy, melting over 40° C. without decomposition. They have a comparatively low viscosity above their melting point, have a consistency and solubility that is comparatively temperature dependent and are polishable with a gentle pressure.
In the hair wax product according to the invention that is provided in a cup or pan the wax-like or waxy composition has a needle penetration number (measurement unit, 0.1 mm, test weight 100 g, test duration 5 c, test temperature of 25° C., according to DIN 51 579) of greater than or equal to 10, preferably 20. The wax or wax-like substances (A) are preferably contained in the composition in an amount of from 20 to 60 percent by weight, especially preferably from 30 to 50 percent by weight. The liquid hydrophobic oil (B) is preferably contained in an amount of from 10 to 35 percent by weight, especially preferably from 15 to 30 percent by weight. The easily volatilized, hydrophobic substance (C) that is liquid or gaseous at room temperature is preferably contained in an amount of from 10 to 35 percent by weight, especially preferably from 15 to 30 percent by weight. A portion of the non-volatile oils is replaced by the easily-volatilized hydrophobic materials in comparison to the conventional hair wax products. The ratio of non-volatile oils (B) to easily-volatilized substances (C) amounts preferably to from 1:2 to 2:1, especially preferably from 1:1 to 1:1.5. The term “easily-volatilized substance” means a substance, which evaporates when applied to the hair. The boiling points of these substances are typically around 250° C. and thereunder.
The easily-volatilized hydrocarbon substance (C) for the hair wax product preferably is liquid at room temperature and has a boiling point in a range from 30 to 250° C., especially preferably from 60 to 220° C. Liquid hydrocarbons, liquid cyclic or linear silicones (dimethylpolysiloxanes), or mixtures of the foregoing substances, are suitable, for example. Suitable hydrocarbons include paraffins or isoparaffins with 5 to 14 carbon atoms, especially preferably with 8 to 12 carbon atoms, especially dodecanes or isododecane. Suitable liquid, easily volatilized silicones include cyclic dimethylsiloxanes with 3 to 8, preferably 4 to 6, silicon atoms, especially cyclotetradimethylsiloxane, cyclopentadimethylsiloxane or cyclohexadimethylsiloxanes. Dimethylsiloxane/methylalkylsiloxane cyclocopolymers, for example, silicone FZ 3109 of Union Carbide, which is a dimethylsiloxane/methyloctylsiloxane cyclocopolymer. Suitable volatile linear silicones have 2 to 9 silicon atoms. Alkyltrisiloxanes, such as hexylheptamethyltrisiloxane or octylheptamethyltrisiloxane, are especially suitable.
A non-aerosol spray wax product is also part of the subject matter according to the invention. The non-aerosol spray wax article consists of a co
Baecker Sabine
Franzke Michael
Stein Bernd
Dees Jose′ G.
Lamm Marina
Striker Michael J.
Wella AG
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