Drug – bio-affecting and body treating compositions – Live hair or scalp treating compositions – Two or more designated surfactant containing
Reexamination Certificate
1999-10-26
2002-07-23
Page, Thurman K. (Department: 1615)
Drug, bio-affecting and body treating compositions
Live hair or scalp treating compositions
Two or more designated surfactant containing
C424S047000, C424S070100, C424S070110, C510S119000
Reexamination Certificate
active
06423305
ABSTRACT:
The present invention relates to a cosmetic or dermatological composition comprising, in a cosmetically or dermatologically acceptable medium, at least one amido ether carboxylic acid surfactant and at least one combination of at least one noncrosslinked anionic polymer and of at least one cationic polymer.
Compositions, in particular leave-in hair compositions, comprising an anionic polymer and a cationic polymer are known in the state of the art. These compositions exhibit good styling properties. However, when these polymer combinations are used in rinse-out compositions, such as shampoos, the styling properties of these compositions are not satisfactory. Thus, an alkyl ether carboxylate surfactant has already been combined, in Patent FR 2,383,660, with a cationic polymer and an anionic polymer. On one hand, the styling properties are not satisfactory and, on the other hand, the foaming power of such a composition is insufficient.
The target is to obtain cosmetic compositions which are capable of contributing, to the hair, properties of styling, of body, of shaping and of hold while having good cosmetic properties, such as softness, feel or disentangling, as well as a sufficient foaming power for them to be used as a shampoo composition.
The Applicant Company has discovered, surprisingly, that, by combining at least one alkylamido ether carboxylic acid surfactant or its salts with at least one combination of an anionic polymer and of a cationic polymer, the styling, body, shaping and hold properties of the hair were substantially superior to those obtained with the surfactants of the prior art used in combination with the anionic polymer and the cationic polymer.
The composition according to the invention is therefore essentially characterized in that it comprises, in a cosmetically or dermatologically acceptable medium, at least one amido ether carboxylic acid surfactant or its salts and at least one combination of at least one noncrosslinked anionic polymer and of at least one cationic polymer.
Another subject-matter of the invention is the use of the composition described above for the styling or the shaping of the hair.
The amido ether carboxylic acid surfactant generally exhibits the following formula (I):
in which R
1
denotes a linear or branched, alkyl or alkenyl radical having from 5 to 23 carbon atoms or a phenyl radical substituted by an alkyl radical having from 6 to 10 carbon atoms. R
1
preferably denotes an alkyl radical having from 8 to 18 carbon atoms and more particularly from 10 to 16 carbon atoms. R
2
denotes a hydrogen atom, an alkyl radical having from 1 to 3 carbon atoms, a —(CH
2
CH
2
O)
n
CH
2
COOM radical or a —(CH
2
CH
2
O)
m
radical and preferably a hydrogen atom; n and m, which are identical or different, represent a number between 1 and 20, preferably between 1 and 10 and more particularly between 1 and 5. M denotes a hydrogen atom, an alkali metal (for example Na
+
or K
+
), NH
4
+
or ammoniums comprising a residue chosen from basic amino acids, such as lysine, arginine, sarcosine, ornithine or citrulline, or else from aminoalcohols, such as monoethanolamine, diethanolamine, triethanolamine, glucamine, N-methylglucamine or 3-amino-1,2-propanediol.
These amido ether carboxylic acid compounds are described in particular in Patent Applications EP-A-699,435 and EP-A-102,118.
A particularly preferred amido ether carboxylic acid surfactant is the sodium salt of formula:
in which n has a mean value of 3.
Such a compound is, for example, sold under the name Akypofoam 30 BV by the company Chem Y.
According to the invention, use may be made of any noncrosslinked anionic polymer or of any cationic polymer known per se. These polymers can be used in dissolved form or in the form of dispersions of solid polymer particles.
The noncrosslinked anionic polymers generally used are polymers comprising groups derived from carboxylic, sulphonic or phosphoric acid and have a weight-average molecular weight of between approximately 500 and 5,000,000.
1) The carboxyl groups are contributed by unsaturated mono- or dicarboxylic acid monomers such as those corresponding to the formula:
in which n is an integer from 0 to 10, A denotes a methylene group, optionally bonded to the carbon atom of the unsaturated group or to the neighbouring methylene group when n is greater than 1 via a heteroatom, such as oxygen or sulphur, R
5
denotes a hydrogen atom or a phenyl or benzyl group, R
3
denotes a hydrogen atom or a lower alkyl or carboxyl group, and R
4
denotes a hydrogen atom, a lower alkyl group or a —CH
2
—COOH, phenyl or benzyl group. In the abovementioned formula, a lower alkyl radical preferably denotes a group having 1 to 4 carbon atoms and in particular methyl and ethyl.
The preferred anionic polymers comprising carboxyl groups according to the invention are:
A) homo- or copolymers of acrylic or methacrylic acid or their salts and in particular the products sold under the names Versicol E or K by the company Allied Colloid and Ultrahold by the company BASF, the copolymers of acrylic acid and of acrylamide sold in the form of their sodium salt under the names Reten 421, 423 or 425 by the Company Hercules or the sodium salts of polyhydroxycarboxylic acids.
B) copolymers of acrylic or methacrylic acid with a monoethylenic monomer, such as ethylene, styrene, vinyl esters or esters of acrylic or methacrylic acid. These copolymers can be grafted onto a polyalkylene glycol, such as polyethylene glycol. Such polymers are disclosed in particular in French Patent 1,222,944 and German Application 2,330,956. Mention may in particular be made of the copolymers comprising, in their chain, an optionally N-alkylated and/or -hydroxyalkylated acrylamide unit, such as disclosed in particular in Luxembourgian Patent Applications 75370 and 75371 or provided under the name Quadramer by the Company American Cyanamid. Mention may also be made of copolymers of acrylic acid and of C
1
-C
4
alkyl methacrylate and terpolymers of vinylpyrrolidone, of (meth)acrylic acid and of C
1
-C
20
alkyl (meth)acrylate, for example lauryl (meth)acrylate (such as that sold by the company ISP under the name Acrylidone LM), tert-butyl (meth)acrylate (Luviflex VBM 70, sold by BASF) or methyl (meth)acrylate (Stepanhold Extra, sold by Stepan), and methacrylic acid/ethyl acrylate/tert-butyl acrylate terpolymers, such as the product sold under the name Luvimer 100 P by the company BASF.
C) copolymers derived from crotonic acid, such as those comprising, in their chain, vinyl acetate or propionate units and optionally other monomers, such as allyl or methallyl esters, vinyl ether or vinyl ester of a linear or branched saturated carboxylic acid comprising a long hydrocarbon chain, such as those comprising at least 5 carbon atoms, it optionally being possible for these polymers to be grafted, or alternatively a vinyl, allyl or methallyl ester of an &agr;- or &bgr;-cyclic carboxylic acid. Such polymers are disclosed, inter alia, in French Patents 1,222,944, 1,580,545, 2,265,782, 2,265,781, 1,564,110 and 2,439,798. Commercial products coming within this class are the Resins 28-29-30, 26-13-14 and 28-13-10 sold by the company National Starch.
D) copolymers derived from C
4
-C
8
monounsaturated carboxylic acids or anhydrides chosen from:
copolymers comprising (i) one or more maleic, fumaric or itaconic acids or anhydrides and (ii) at least one monomer chosen from vinyl esters, vinyl ethers, vinyl halides, phenylvinyl derivatives, or acrylic acid and its esters, the anhydride functional groups of these copolymers optionally being monoesterified or monoamidated; such polymers are disclosed in particular in U.S. Pat. Nos. 2,047,398, 2,723,248 and 2,102,113 and Patent GB 839,805 and in particular those sold under the names Gantrez AN or ES, or Avantage CP by the company ISP.
copolymers comprising (i) one or more maleic, citraconic or itaconic anhydrides and (ii) one or more monomers chosen from allyl or methallyl esters, optionally comprising one or more acrylamide, methacrylamide or &agr;-olefin gro
Cauwet-Martin Daniele
Garnier Nathalie
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
L'Oreal (S.A.)
Page Thurman K.
Seidleck Brian K.
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