Drug – bio-affecting and body treating compositions – Effervescent or pressurized fluid containing – Organic pressurized fluid
Reexamination Certificate
1997-02-21
2003-01-07
Dees, Jose″G. (Department: 1616)
Drug, bio-affecting and body treating compositions
Effervescent or pressurized fluid containing
Organic pressurized fluid
C424S047000, C424SDIG001, C424SDIG002, C424S070110, C424S070120, C514S063000, C514S957000
Reexamination Certificate
active
06503479
ABSTRACT:
The present invention relates to a cosmetic aerosol-pressurized composition for treating keratin substances, in particular the hair, comprising (a) a fluid comprising at least one fixing polymer and at least 5% by weight, relative to the total weight of the pressurized composition, of a non-volatile aryl silicone and (b) at least one propellant, as well as to a process for treating keratin substances using this composition.
In the cosmetics field, an aerosol-pressurized composition generally comprises a composition, known as the fluid, and a propellent agent.
Compositions for shaping or retaining the shape of the hair containing styling polymers (fixing polymers) in their formation generally have the drawback of making the disentangling, restyling or brushing of the hair difficult, in particular during blow-drying. Styling polymers also have a tendency to make the hair dull.
The combination of silicone derivatives with fixing polymers is known in cosmetic compositions for fixing and/or retaining the shape of the hairstyle. It has been observed that these silicone derivatives improve the disentangling, softness and sheen properties of hair treated with these compositions. However, on the one hand, silicone derivatives are not favorable to the styling properties of compositions containing fixing polymers, and, on the other hand, the sheen properties are still not satisfactory.
So-called “brilliant” products exist, which are applied as an end care product, that is to say on dried hair. These products are difficult to apply since if the amount applied is too large or poorly distributed, the head of hair generally has a greasy look and feel. Furthermore, these products provide no fixing.
Therefore,. the aim of the present invention is the preparation of compositions which allow the hairstyle to be fixed and/or shaped, these compositions having good hold properties over time and providing excellent sheen properties.
The present inventors have now discovered, surprisingly, that by using compositions containing a fixing polymer in combination with at least one non-volatile aryl silicone and at least one propellant in a cosmetically acceptable solvent, excellent sheen properties and a good drying time are obtained while at the same time having excellent styling and/or fixing properties.
The subject of the present invention is thus a cosmetic aerosol-pressurized composition comprising: (a) a fluid comprising, in a cosmetically acceptable medium, at least one fixing polymer and at least one non-volatile aryl silicone relative to the weight of the fluid; and (b) at least one propellant, wherein the concentration of the non-volatile aryl silicone is greater than or equal to 5% by weight relative to the total weight of the composition.
Surprisingly, despite the presence of a large amount of silicone, the decrease in fixing power of the compositions is limited. The styling properties are of the same degree as those of a composition containing only the fixing polymer. In particular, the fixing power, the hold over time and the volume of the head of hair are very good.
These compositions do not become powdery on the head of hair during brushing or combing (there are no white flakes) and are invisible on the hair. The treated hair has a non-greasy look and feel.
Furthermore, brushing and/or combing of the hair after application of the product further improves the sheen.
In the context of the present invention, the expression “cosmetic compositions for retaining the shape of the hairstyle” is understood to refer to any composition whose function is to fix the shape of the hairstyle temporarily, such as, for example, styling lacquers and sprays. The expression “fixing power of the composition” denotes that ability of the latter to give the hair a cohesion such that the initial shape of the hairstyle is conserved. The term “fixing polymer” is understood to refer to any polymer whose function is to fix the shape of the hairstyle temporarily.
According to the invention, any fixing polymer which is known per se can be used. In particular, fixing polymer selected from anionic, cationic, amphoteric and nonionic polymers and mixtures thereof can be used.
The fixing polymers may be used in solubilized form or in the form of dispersions of solid polymer particles.
The cationic fixing polymers which can be used according to the present invention are preferably selected from polymers containing primary, secondary, tertiary and/or quaternary amine groups forming part of the polymer chain or directly connected thereto, and having a molecular weight from 500 to about 5,000,000 and preferably from 1000 to 3,000,000.
Among these polymers, mention may preferably be made of the following cationic polymers:
(1) homopolymers or copolymers derived from acrylic or methacrylic esters or amides and containing at least one of the units of the following formulae:
in which:
R
3
denotes a hydrogen atom or a CH
3
radical;
A is a linear or branched alkyl group of 1 to 6 carbon atoms or a hydroxyalkyl group of 1 to 4 carbon atoms;
R
4
, R
5
and R
6
, which are identical or different, represent an alkyl group having from 1 to 18 carbon atoms or a benzyl radical;
R
1
and R
2
, which are indentical or different, represent hydrogen or an alkyl group having from 1 to 6 carbon atoms;
X denotes a methosulphate anion or a halide such as chloride or bromide; and
(2) the quaternized polysaccharides described more particularly in U.S. Pat. Nos. 3,589,578 and 4,031,307, the disclosures of which are incorporated herein by reference, such as the product marketed under the name JAGUAR C 13S by the company Meyhall;
(3) quaternized copolymers of vinylpyrrolidone and of vinylimidazole;
(4) Chitosans or salts thereof, in particular, chitosan acetate, lactate, glutamate, gluconate or pyrrolidonecarboxylate.
Among these compounds, mention may be made of chitosan having a degree of deacetylation of 90.5%, sold under the name KYTAN BRUT STANDARD by the company Aber Technologies and chitosan pyrrolidonecarboxylate sold under the name KYTAMER PC by the company Amerchol.
The copolymers of group (1) also contain one or more monomer units which may be selected from acrylamides, methacrylamides, diacetone acrylamides, acrylamides and methacrylamides substituted on the nitrogen with C
1
-C
6
lower alkyls, acrylic or methacrylic acids or esters thereof, vinyllactams, such as vinylpyrrolidone or vinylcaprolactam, and vinyl esters.
Thus, among these copolymers of group (1) mention may preferably be made of:
copolymers of acrylamide and of dimethylaminoethyl methacrylate quaternized with dimethyl sulphate or with a dimethyl halide, such as those sold under the name HERCOFLOC by the company Hercules;
copolymers of acrylamide and of methacryloyloxyethyltrimethylammonium chloride described, for example in European patent application EP-A-080,976, the disclosure of which is incorporated herein by reference, and sold under the name BINAQUAT P100 by the company Ciba Geigy;
the copolymer of acrylamide and of methacryloyloxyethyltrimethylammonium methosulphate sold under the name RETEN by the company Hercules;
quaternized or non-quaternized vinylpyrrolidone/dialkylaminoalkyl acrylate or methacrylate copolymers, such as the products sold under the name GAFQUAT by the company ISP, such as, for example GAFQUAT 734 or GAFQUAT 755 or the products known as COPOLYMER 845, 958 and 937. These polymers are described in detail in French patents 2,077,143 and 2,393,573, the disclosures of which are incorporated herein by reference;
dimethylaminoethyl methacrylate/vinylcaprolactam/vinylpyrrolidone terpolymers such as the product sold under the name GAFFIX VC 713 by the company ISP;
and the quaternized vinylpyrrolidone/dimethylaminopropyl methacrylamide copolymer, such as the product sold Under the name GAFQUAT HS 100 by the company ISP;
The anionic fixing polymers generally used are polymers containing groups derived from carboxylic, sulphonic or phosphoric acid and have a weight-average molecular weight of approximately from 500 to 5,000,000.
The carboxylic groups are prov
LesAulnier Claire-Marie
Sturla Jean-Michel
Dees Jose″G.
Finnegan Henderson Farabow Garrett & Dunner
L'Oreal
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