Toilet – Methods – Hair treatment by application of specific chemical composition
Reexamination Certificate
2001-01-26
2003-02-18
Dawson, Robert (Department: 1712)
Toilet
Methods
Hair treatment by application of specific chemical composition
C132S202000, C132S210000, C222S335000, C222S394000, C222S395000, C424S045000, C424S070100, C424S070120, C424S070122, C424S070110, C424SDIG001, C524S588000, C524S838000, C525S452000, C525S453000, C525S474000, C528S028000, C528S038000, C514S772100
Reexamination Certificate
active
06520186
ABSTRACT:
The present invention relates to a reshapable hair styling composition.
Fixing the hairstyle is an important element in hair styling, and involves maintaining a shaping that has already been carried out, or simultaneously shaping and fixing the hair.
In accordance with the invention, the term “hair styling composition” relates to any kind of hair composition that can be used to effect hair styling, for example fixing compositions, shampoos, conditioners, permanent waving compositions, hair care products, and hair treatment products.
The most prevalent hair styling compositions on the cosmetic market for shaping and/or maintaining the hairstyle are spray compositions comprising a solution, usually alcohol- or water-based, and one or more materials, generally polymer resins. One of the functions of polymer resins is to form links between the hairs, these materials also being called fixatives, in a mixture with various cosmetic adjuvants. This solution is generally packaged either in an appropriate aerosol container, which is pressurized with the aid of a propellant, or in a pump flask.
Other known hair styling compositions include styling gels and mousses, which are generally applied to the wetted hair before brushing or setting it. In contrast to the conventional aerosol lacquers, these compositions have the disadvantage that they do not allow the hair to be fixed in a shape created before their application. In fact, these compositions are essentially aqueous and their application wets the hair and is therefore unable to maintain the initial shape of the hairstyle. In order to shape and fix the hairstyle, therefore, it is necessary to carry out subsequent brushing and/or drying.
Such hair styling compositions all have the same disadvantage that they do not allow the hairstyle to be later modified to a desired shape, which is other than that formed initially, without starting the styling and fixing operations again. Moreover, under various kinds of stress, the hairstyle has a tendency to take on an undesirable permanent set, which cannot easily be modified. Also in the styling process, one desires hair conditioning benefits, such as ease of combing and soft hair feel appearance.
A subject of the invention is a reshapable hair styling composition comprising at least one silicon-containing polycondensate chosen from polyurethanes, polyureas, and polyurethane-ureas, wherein said composition provides a reshapable effect.
Another subject of the invention is a reshapable hair styling composition comprising at least one silylated polycondensate chosen from polyurethanes, polyureas, and polyurethane-ureas, wherein said composition provides a reshapable effect.
Another subject of the invention is a reshapable hair styling composition comprising at least one siliconated polycondensate chosen from polyurethanes, polyureas, and polyurethane-ureas, wherein said composition provides a reshapable effect.
Another subject of the invention is a reshapable hair styling composition comprising at least one polycondensate that is functionalized with at least one group chosen from hydrolyzed silyl groups and hydrolyzable silyl groups, wherein said at least one polycondensate is the product of reactants comprising:
(a) at least one isocyanate terminated polycondensate prepolymer, which is the product of reactants comprising
(i) at least one polyisocyanate and
(ii) at least one polyol;
(b) at least one polyfunctional chain extender;
(c) at least one silyl containing component; and
(d) at least one hydrophilic component,
wherein said composition provides a reshapable effect.
Another subject of the invention is a reshapable hair styling composition comprising at least one silicon-containing polycondensate chosen from polyurethanes, polyureas, and polyurethane-ureas, such as a silylated polycondensate, a siliconated polycondensate, or a polycondensate that is functionalized with at least one group chosen from hydrolyzed silyl groups and hydrolyzable silyl groups, as described above, wherein said reshapable hair styling composition is in the form of a spray, aerosol, mousse, gel, stick, mud, or lotion.
Another subject of the invention is an aerosol device comprising a vessel, which comprises: (1) an aerosol composition, which provides a reshapable effect and comprises a liquid phase comprising at least one composition comprising at least one silicon-containing polycondensate chosen from polyurethanes, polyureas, and polyurethane-ureas, such as a silylated polycondensate, a siliconated polycondensate, or a polycondensate that is functionalized with at least one group chosen from hydrolyzed silyl groups and hydrolyzable silyl groups, as described above, and a propellant, and (2) a dispenser.
Another subject of the invention is a method of cosmetically treating hair, comprising applying to the hair before, during, or after shaping of a hairstyle of said hair a composition comprising at least one silicon-containing polycondensate chosen from polyurethanes, polyureas, and polyurethane-ureas, such as a silylated polycondensate, a siliconated polycondensate, or a polycondensate that is functionalized with at least one group chosen from hydrolyzed silyl groups and hydrolyzable silyl groups, as described above, wherein said composition provides a reshapable effect.
Another subject of the invention is a method of reshaping hair, comprising: (1) applying to the hair before, during, or after the initial shaping of the hairstyle, a composition comprising at least one silicon-containing polycondensate chosen from polyurethanes, polyureas, and polyurethane-ureas, such as a silylated polycondensate, a siliconated polycondensate, or a polycondensate that is functionalized with at least one group chosen from hydrolyzed silyl groups and hydrolyzable silyl groups, as described above, wherein said composition provides a reshapable effect, and (2) thereafter shaping the hairstyle at least once, wherein no additional composition or heat is added.
In one embodiment of the invention, such reshapable hair styling compositions may be in the form of a dispersion. The term “dispersion” means generally a two phase system where one phase contains discrete particles distributed throughout a bulk substance, the particles being the disperse or internal phase, and the bulk substance being the continuous or external phase. The continuous phase may be an aqueous phase and at least a portion of the polymer may exist as discrete particles. Dispersions are possible through the use of certain components that are insoluble in the aqueous system. By “dispersion,” it is also meant that not necessarily the entire polymer needs to be water insoluble; some of the polymer can be soluble in the water mixture. It may be desirable that a dispersion remains stable under ambient conditions. In one embodiment, dispersions are stable at room temperature for more than 30 days, such as for more than 90 days, for more than 180 days, and for more than 360 days.
The phrase “silicon-containing polycondensate” means a polycondensate with at least one silicon atom present anywhere within the polycondensate. The silicon atom can be joined to any other atom. The term “hydrolyzable silyl group” means generally a silicon atom substituted with at least one moiety that will react with water to give a hydrolyzed silyl group. The term “hydrolyzed silyl group” means generally a silicon atom substituted with at least one —OH moiety. The inventors recognize that at some time after formation of a polycondensate that is functionalized with at least one group chosen from hydrolyzed silyl groups and hydrolyzable silyl groups, such as during the drying of the polymer, one or more —OH moieties may react further, such as, for example, forming an ≡Si—O—Si≡ group. Such products are encompassed within the phrase “polycondensate that is functionalized with at least one group chosen from hydrolyzed silyl groups and hydrolyzable silyl groups.” A polycondensate that is functionalized with at least one silyl group, whether or not hydrolyzed or hydrolyzable, is also referred to as a
Rollat Isabelle
Samain Henri
Dawson Robert
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
L'Oreal
Robertson Jeffrey B.
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