Cosmetic compositions containing at least one anionic surfactant

Details Cosmetic compositions containing at least one anionic surfactant Cosmetic compositions containing at least one anionic surfactant

1995-11-28

1999-05-04

Gardner-Lane, Sally

Drug, bio-affecting and body treating compositions

Live hair or scalp treating compositions

Anionic surfactant containing

424 7013, 424 7017, 514846, 514847, A61K 748, A61K 700

Patent

active

059002328

DESCRIPTION:

BRIEF SUMMARY
The invention relates to cosmetic compositions containing at least one anionic surfactant of alkylgalactoside uronate type and at least one cationic polymer and to the use thereof in the treatment and washing of keratinous substances.
Compositions for washing the hair or the skin are generally formulated from anionic or nonionic surfactants or their mixtures, optionally in the presence of amphoteric surfactants.
Hair attacked by atmospheric agents such as light or chemical treatments and washed with conventional washing compositions is difficult to disentangle and this disadvantage is found to be further accentuated in the case of wet hair.
It has been proposed to add cationic polymers to such washing bases in order to improve the disentangling properties but the volume and the amount of the lathers, in particular their softness and their compactness, are not satisfactory.
Anionic surfactants of alkylgalactoside uronate type have already been recommended in washing compositions for the hair. They have been described in Patent Application EP-A-0,532,370.
Compositions for washing the hair which use these anionic or nonionic surfactants alone do not lead to good cosmetic properties; in particular, the disentangling of wet hair is difficult.
The Applicant Company has just surprisingly discovered that the combination, in washing and/or treating compositions for keratinous substances, of an anionic surfactant of alkylgalactoside uronate type and of a cationic polymer confer greatly improved disentangling properties, in particular for wet hair, on these compositions.
Moreover, the combination in accordance with the present invention makes it possible to obtain a copious, compact and very soft lather.
In addition, the Applicant Company has observed that the cosmetic compositions containing such a combination confer good cosmetic properties, such as softness and a pleasant feel, on keratinous substances.
The subject of the present invention is therefore cosmetic compositions containing at least one anionic surfactant of alkylgalactoside uronate type and at least one cationic polymer, with the exception of cationic cellulose ethers.
Another subject of the invention consists of the use of these compositions for treating and/or washing keratinous substances such as the hair or the skin.
Another subject relates to cosmetic treatment processes for the hair or for the skin by means of the compositions of the invention; washing and treatment processes for the hair being preferred.
The cosmetic compositions according to the invention contain, in a cosmetically acceptable aqueous medium, at least one alkylgalactoside uronate and at least one cationic polymer, with the exception of cationic celluloses such as cationic cellulose ethers or quaternized celluloses.
The alkylgalactoside uronates which can be used in accordance with the invention correspond to the following formula (I): ##STR2## in which: R.sub.1 denotes a linear or branched alkyl radical containing 8 to 22 carbon atoms. endocyclic oxygen atom; R.sub.2 being hydrogen, an alkali metal, an alkaline-earth metal or a quaternary ammonium group which is unsubstituted or substituted by alkyl or hydroxyalkyl radicals or derived from an amino acid.
The anionic surfactants of alkylgalactoside uronate type of formula (I) are known and can be prepared according to the processes described in Patent Application EP-A-0,532,370.
The alkali metal is in particular sodium or potassium and the alkaline-earth metal is preferably magnesium. Mention may be made, as quaternary ammonium salts, of the salts of ammonia, of triethanolamine, of monoethanolamine, of 2-amino-2-methyl-1,3-propanediol or of 2-amino-2-methyl-1-propanol; the amino acid is in particular histidine, arginine or lysine.
Use is preferably made of the compounds of formula (I) in which the R.sub.1 radical denotes a C.sub.8 -C.sub.14 alkyl and more particularly the decyl radical.
Use is in particular made of the following compounds: ##STR3## The cationic polymers which can be used in accordance with the invention are chose

REFERENCES:
patent: 3980769 (1976-09-01), Ghilardi et al.

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