Compositions for removing or lightening hair color

Details Compositions for removing or lightening hair color Compositions for removing or lightening hair color

2000-02-03

2002-04-02

Dees, Jose′ G. (Department: 1616)

Drug, bio-affecting and body treating compositions

Bleach for live hair or skin

C008S101000, C008S102000, C008S111000, C008S405000, C008S406000, C008S527000, C008S528000, C424S401000, C424SDIG003

Reexamination Certificate

active

06365136

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a composition for removing or lightening (bleaching) hair color, especially of human hair, which is obtainable from two components.
2. Prior Art
Usually oxidizing preparations are used for decolorizing or bleaching hair, which are obtained by dissolving a so-called bleaching powder (powder mixture of alkali salts and inorganic persalts, such as sodium or ammonium persulfate) in an aqueous hydrogen peroxide solution.
The use of this kind of bleaching powder, which necessarily comprises a plurality of ingredients, has many disadvantages. The different powder ingredients thus have a tendency to separate during storage or transport because of the use of raw materials having different densities. The heavier ingredients of the powder collect in the lower portion of the powder's container, while the lighter ingredients collect in the upper portion. This un-mixing or separation has the consequence that equal portions of powder taken from different parts of the container have different chemical compositions and thus can have a different decolorizing or bleaching action. In order to prevent this separation it is necessary to shake the powder thoroughly before taking it from the container, which however the user does not usually do. A separation can also be prevented by the use of mixed powders with very small grain size. This however has the disadvantage that those powder mixtures are inclined to generate dust, which lead to irritation of the lungs, especially when the container is opened and the powder removed and mixed with hydrogen peroxide. Furthermore this sort of powder mixture has a large surface area because of its reduced grain size, so that an up-take of moisture occurs on opening and closing of the container and thus a reduction of the decolorizing or hair color lightening action is promoted on account of the deactivation of the oxygen carrier.
The preparation of the ready-to-use mixture occurs by stirring the ingredients in a vessel or by mixing them together in a shaking flask. Especially shaking often involves a troublesome dust development on filling the ingredients into the shaking flask.
There already have been numerous attempts to solve this problem.
Thus, in German Patent Document DE-OS 40 26 235 a mixture comprising a persulfate granulate and a granulate of conventional ingredients of a bleaching agent is described instead of a bleaching powder. Of course the problem of dust generation can be eliminated by use of a granulate, but the problem of separation cannot be solved in this way since it is exceptionally difficult to prepare an individual granulate with identical and constant grain size and batch weight. Furthermore the bleaching or decolorizing action can be impaired because of the differing solubilities of the individual granulate. From an economic standpoint it does not make sense to produce a mixture of several granulates instead of an individual granulate. In EP-PS 0560 088 a powdery agent for lightening or decolorizing the hair is described in which an oil or a liquid wax is added to prevent dust formation. However dust generation cannot be eliminated in this manner. Furthermore a deactivation of the oxygen carrier occurs because of the water content of the powdery raw material employed, whereby the product is unstable and its decolorizing or bleaching action is lost. Furthermore bleaching agents of this type are unsuitable for use in an applicator flask because of their specific gravity and their hydrophobic character, since the powder does not sink to the bottom of the hydrogen peroxide solution and is not sufficiently wet, whereby a non-uniform mixture with a high percentage of undissolved powder is obtained, which clogs the outlet of the applicator flask. The addition of surfactants, which improve the solubility of the powder is similarly problematical, since the storability of the powder is impaired by that.
Pasty two component preparations for making a ready-to-apply pasty preparation for bleaching of human hair are described in DE-OS 38 14 356 and U.S. Pat. 4,170,637. In these preparations the powdery ingredients are worked into a hydrophobic base, comprising oil and wax, so that a paste results. This suspension has the disadvantage that is somewhat inclined toward phase separation, which is noticeable as oil separation. In order to prevent this an absorbing agent, for example silicic acid, is added, whereby the paste again is very solid. In DE-PS 197 23 538 pasty two component preparations were described for making a ready-to-use pasty preparation for bleaching of human hair. This preparation, besides the usual ingredients for bleaching contains a certain thickener combination. This thickener combination comprises an acrylic acid polymer and at least one polymer made from cellulose, alginate and polysaccharide, at least one mineral oil, at least one liquid, long-chain, hydrophobic fatty acid ester and at least one waxy, long-chain, hydrophobic fatty acid ester and/or synthetic beeswax substitutes. These agents are however not satisfactory in every aspect or regard in relation to their behavior at high temperatures.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a storage-stable, non-dust generating composition for decolorizing hair or lightening or brightening hair color, which is mixed immediately prior to use by simply shaking or stirring with an oxidizing agent preparation and, besides its absolutely dust-free administration and application form, also guarantees very good bleaching action with simultaneously good storage stability between 5 and 45° C., without loosing its outstanding creamy consistency and thus its outstanding decolorizing or bleaching properties when it is cooled and/or heated.
Surprisingly it has now been found that the above-described objects can be attained by using of a pasty decolorizing or hair color lightening composition based on a new special combination of thickening agents and in which addition of emulsifiers is not required.
According to the present invention the composition for removing or brightening or lightening hair color from hair, especially human hair, which is mixed with an aqueous oxidizing agent immediately prior to use and thus present in the form of a hair color lightening or brightening suspension, contains or comprises a combination of
(a) from 0.1 to 80 percent by weight of at least one organic lipophilic compound selected from the group consisting of vegetable and animal fats, oils and waxes, paraffin hydrocarbons, higher alcohols and ethers, aliphatic and aromatic esters and silicone oils;.
(b) from 0.1 to 40 percent by weight of at least one inorganic or organic thickener having lipophilic character, that forms an oleogel and/or lipogel with the at least one lipophilic compound;
(c) from 0.1 to 40 percent by weight of at least one inorganic or organic thickener with hydrophilic character;
(d) from 10 to 65 percent by weight of at least one inorganic persalt;
(e) from 10 to 45 percent by weight of at least one alkaline reacting salt; as well as auxiliary substances and additive ingredients as needed.
The suitable organic lipophilic ingredients include, especially, vegetable oils, for example, jojoba oil; petrolatum (Vaseline©);liquid paraffins, especially paraffinum perliquidum and parafiinum subliquidum; silicone oils; liquid, long-chain, hydropobic fatty acid esters, especially octyl palmitate, isocetyl palmitate, isopropyl palmitate and octyl stearate; waxy, long-chain, hydrophobic fatty acid esters and/or synthetic wax replacing substances, such as natural or synthetic beeswax (for example lipowax 6138G® of Lipo Chemicals), C
18
- to C
36
-fatty acids(for example, synchrowax AW1C® of Croda Chemicals Ltd.), C
10
- to C
36
-fatty acid triglycerides, such as octanoic acid/dodecanoic acid-triglycerides, hydrated coconut oil fatty acid glycerides (for example Softisan 100® of Hüls AG), glyceryltribehenate (for example Synchrowax HRC® of Croda ChemicalsLtd.), mixed fatty acid est

Affiliated with

Also associated with

Rating

Compositions for removing or lightening hair color does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compositions for removing or lightening hair color, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compositions for removing or lightening hair color will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2910501