Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Reexamination Certificate
2001-04-18
2002-08-13
Douyon, Lorna M. (Department: 1751)
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
C008S406000, C008S407000, C008S410000, C008S581000
Reexamination Certificate
active
06432145
ABSTRACT:
CROSS-REFERENCE TO RELATED APPLICATIONS
Not applicable.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not applicable.
REFERENCE TO A MICROFICHE APPENDIX
Not applicable.
FIELD OF THE INVENTION
This invention is directed to an oxidation hair dyeing agent composition containing silicones, and more specifically relates to oxidation hair dyeing agent compositions of superior washing resistance containing a cyclic silicone and a silicone elastomer.
BACKGROUND OF THE INVENTION
Oxidation hair dyeing agents are most widely used as permanent hair dyeing agents. Oxidation dye precursors in such hair dyeing agents penetrate into hair, and chemically impart a color to the hair by means of color formation resulting from oxidative polymerization under the action of an oxidation agent. The process is generally one characterized by permanency in the dyeing effect.
As far as the forms of such oxidation hair dyeing agents are concerned, numerous two-component type products are known. They are used by mixing, at the time of hair dyeing, a first agent containing an oxidation dye precursor, and a second agent containing an oxidation agent. There are also single-component products which are powder-like. These products are used by mixing the one component with water at the time of hair dyeing. Multi-component products containing three or more agents are also known.
Hair dyeing agents containing silicones are known, and reference may be had, for example, to Japanese Kokai Patent Application Publication No. Sho 59[1984]-190910/British Patent 2138845 (October 1984), which describes a process for dyeing hair using a hair dyeing agent composition containing a silicone derivative obtained by introducing tertiary amino groups or quaternary ammonium groups into the side chain of polydiorganosiloxanes to produce deep color tones. Japanese Kokai Patent Application Publication No. Hei 08[1996]-040851 also discloses an oxidation hair dyeing agent composition, but it contains a saccharide derivative and a silicone. The silicone is exemplified by dimethylpolysiloxane, amino-modified polysiloxane, epoxy-modified polysiloxane, and a polyether-modified polysiloxane.
However, the problem with such compositions is that even if hair is dyed with such hair dyeing agent compositions, the color tone of the dyed hair tends to fade when hair is repeatedly washed with cold and hot water containing shampoo and soap.
BRIEF SUMMARY OF THE INVENTION
It is therefore an object of the invention to eliminate the disadvantages of previously known oxidation hair dyeing agent compositions, and provide an oxidation hair dyeing agent composition in which color tones of dyed hair are not easily affected by repeated washing with cold and hot water containing shampoo and soap, and which has superior wash resistance.
Accordingly, it was unexpectedly discovered that an oxidation hair dyeing agent composition containing a cyclic silicone and a silicone elastomer had superior hair dyeing ability, it produced no dye color irregularities, and it possessed superior washing resistance.
These and other features of the invention will become apparent from a consideration of the detailed description.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING
Not applicable.
DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to an oxidation hair dyeing agent composition, and it is generally characterized by the fact that it contains a cyclic silicone and a silicone elastomer. More particularly, a two-component type oxidation hair dyeing agent composition is provided, and it contains as a first agent or component a mixture of an oxidation dye precursor, a cyclic silicone, a silicone elastomer, an emulsifying agent, and water. This mixture is emulsified in water using the emulsifying agent. The second agent or component of the composition is an aqueous hydrogen peroxide solution.
The cyclic silicones used in the oxidation hair dyeing agent compositions of the invention are known in the cosmetic industry under The Cosmetic, Toiletry, and Fragrance Association (CTFA) name CYCLOMETHICONE. Reference may be had to the CTFA's International Cosmetic Ingredient Dictionary. Some representative examples are octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane. These cyclic polydimethylsiloxanes generally have a degree of polymerization of 3 to 7. In addition, it is also possible to use cyclic polymethylhydrogensiloxanes, cyclic polymethylvinylsiloxanes, and cyclic polymethylphenylsiloxanes, with low degree of polymerization. Such other cyclic silicones are also known in the cosmetic and silicone industry.
The silicone elastomer used in the oxidation hair dyeing agent composition of this invention is also a material known in the cosmetic industry generally referred to for example as Dimethicone Crosspolymer. Some representative examples are elastomeric polymethylsiloxanes obtained by crosslinking, and which contain alkyl groups with 3-20 carbon atoms. Again, reference may be had to the CTFA's International Cosmetic Ingredient Dictionary. Some other suitable silicone elastomers which can be used include materials obtained by crosslinking polymethylvinylsiloxane and polymethylhydrogensiloxane in the presence of a platinum catalyst; materials obtained by crosslinking &agr;,&ohgr;-dihydroxypolydimethylsiloxane with an hydrolyzable group-containing organosilane; and materials obtained by crosslinking polymethylvinylsiloxane in the presence of an organic peroxide. Representative silicone elastomers are also described in U.S. Pat. Nos. 5,654,362, 5,811,487, 5,880,210, and 5,969,035.
If desired, the cyclic silicone can be included as a separate component, or in a mixture with the silicone elastomer. Its content in a mixture with the silicone elastomer is preferably at least about 87 percent by weight, but its content may vary above or below this amount depending on the type and properties of the particular cyclic silicone used, as well as on the type and properties of the silicone elastomer. The cyclic silicone should, however, be readily miscible with other oily like ingredients included in the oxidation hair dyeing agent, and it should be easily emulsifiable in water under influence of an emulsifying agent. Thus, the mixture should exhibit a paste-like or soft gel-like consistency.
If there is too small an amount of the cyclic silicone, the mixture will not exhibit a paste-like or soft gel-like consistency. If there is too small an amount of silicone elastomer, then the corresponding amount of silicone elastomer available to adhere to the hair will be too small, with the result that it will be difficult to impart gloss and smoothness. Thus, the amount of cyclic silicone present can vary from 15-95 percent by weight, the remainder being the silicone elastomer.
The content of cyclic silicone and silicone elastomer in hair dyeing agent compositions of the invention is most preferably about 1.25 percent by weight, based on the total weight of the hair dyeing agent composition. If the amount is too large, then emulsification in water is difficult. If the content is too small, it is difficult to obtain any meaningful hair treatment effect. However, for most purposes, it has been found that the content can vary between 0.1-10 percent by weight. In addition, because the combination of cyclic silicone and silicone elastomer is oil-soluble, the combination is preferably emulsified in water using an emulsifying agent.
The hair dyeing component of the composition of this invention is an oxidation dye precursor, and it can be an indole or indoline such as are described in Japanese Kokai Patent Application Publication No. 08[1996]-040857/U.S. Pat. No. 5,690,697 (November 1997). In addition, some examples of other types of oxidation dye precursors useful in the present invention include compounds such as p-phenylenediamine, p-nitro-o-phenylenediamine, p-chlor-o-phenylenediamine, p-nitro-m-phenylenediamine sulfate, and other phenylenediamines; toluene-2,5-diamine, toluene-3,4-di
De Cesare Jim L.
Douyon Lorna M.
Dow Corning Corporation
Elhilo Eisa
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