Drug – bio-affecting and body treating compositions – Live hair or scalp treating compositions
Reexamination Certificate
2001-06-22
2003-11-11
Dees, Jose′ G. (Department: 1616)
Drug, bio-affecting and body treating compositions
Live hair or scalp treating compositions
C424S401000, C424S070110, C424S070160
Reexamination Certificate
active
06645478
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.
Some 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, some types of these other known hair styling compositions disadvantageously are not designed to 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; hence these compositions are not designed 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 with these types of compositions.
Thus, many hair styling compositions exist that have the same disadvantage: they are not designed to 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 (meth)acrylic copolymer comprising: (a) optional units derived from at least one monomer chosen from (meth)acrylate esters of branched and straight chain alkyl alcohols, (b) optional units derived from at least one monomer chosen from (meth)acrylate esters of saturated and unsaturated cyclic alcohols containing 6 to 20 carbon atoms, (c) optional units derived from at least one monomer chosen from hydrophilic monomers, or (d) optional units derived from at least one monomer other than said (a), (b), and (c) monomers, wherein said at least one (meth)acrylic copolymer comprises units derived from at least four different monomers, wherein said at least one (meth)acrylic copolymer comprises at least one unit derived from monomers recited in either (a) or (b), and wherein said composition provides a reshapable effect.
Another subject of the invention is a reshapable hair styling composition comprising at least one (meth)acrylic copolymer comprising: (a) units derived from at least one monomer chosen from (meth)acrylate esters of branched and straight chain alkyl alcohols, (b) units derived from at least one monomer chosen from (meth)acrylate esters of saturated and unsaturated cyclic alcohols containing 6 to 20 carbon atoms, (c) optional units derived from at least one monomer chosen from hydrophilic monomers, and (d) optional units derived from at least one monomer other than said (a), (b), and (c) monomers, wherein said at least one (meth)acrylic copolymer comprises units derived from at least four different monomers and wherein said composition provides a reshapable effect.
Another subject of the invention is a reshapable hair styling composition comprising at least one (meth)acrylic copolymer comprising: (a) from about 10 to about 85 weight percent of units derived from at least one monomer chosen from (meth)acrylate esters of branched and straight chain alkyl alcohols, (b) from about 5 to about 70 weight percent of units derived from at least one monomer chosen from (meth)acrylate esters of saturated and unsaturated cyclic alcohols containing 6 to 20 carbon atoms, (c) from 0 to about 20 weight percent of units derived from at least one monomer chosen from hydrophilic monomers, and (d) from 0 to about 20 weight percent of units derived from at least one monomer other than said (a), (b), and (c) monomers, wherein said at least one (meth)acrylic copolymer comprises units derived from at least four different monomers and wherein said composition provides a reshapable effect.
Another subject of the invention is a reshapable hair styling composition comprising at least one (meth)acrylic copolymer comprising: (a) from about 20 to about 80 weight percent of units derived from ethyl hexyl (meth)acrylate, (b) from about 5 to about 65 weight percent of units derived from isobornyl (meth)acrylate, (c) from about 1 to about 15 weight percent of units derived from acrylic acid, and (d) from about 1 to about 15 weight percent of units derived from methacrylic acid, wherein the ratio of ethyl hexyl (meth)acrylate derived units to isobornyl acrylate derived units ranges from about 0.5:1 to about 6:1, wherein said composition provides a reshapable effect.
The weight percentages of the (a), (b), (c), and (d) units may be based on the total weight of each monomer type used compared to the total weight of all monomers used.
Another subject of the invention is a reshapable hair styling composition comprising at least one (meth)acrylic copolymer, 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 (meth)acrylic copolymer, 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 (meth)acrylic copolymer, 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 (meth)acrylic copolymer, 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.
Another subject of the invention is a method of manufacturing a reshapable hair styling composition comprising including in a hair styling composition at least one (meth)acrylic copolymer, as described above, wherein said at least one (meth)acrylic copolymer is present in an amount effective to provide a reshapable effect.
In one embodiment of the invention, such reshapable hair styling compositions may be in the form of an aqueous emulsion or dispersion. All emulsions comprise a continuous phase and at least one dispersed phase. The term “dispersion” means generally a multi-phase system where at least one phase contains discrete particles distributed throughout a bulk substance. A portion of the copolymer may exist as the discrete particle in an aqueous phase. 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 copolymer needs to be water insoluble; some of the copolymer can be soluble in the aqueous
Morel Olivier
Rollat Isabelle
Samain Henri
Dees Jose′ G.
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
George Konata M.
L'Oreal (S.A.)
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