Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2001-09-19
2003-09-09
Ogden, Necholus (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S121000, C510S123000, C510S125000, C510S126000, C510S508000
Reexamination Certificate
active
06617292
ABSTRACT:
The present invention relates to a composition for washing keratinous materials comprising particles essentially consisting of aluminium oxide, at least one anionic surfactant and at least one amphoteric or nonionic surfactant, to a method for the cosmetic treatment of keratinous fibres and to a use of the composition as a shampoo.
U.S. Pat. No. 3,819,827 by WELLA describes in particular hair-setting products comprising from 0.2 to 6% by weight of particles of aluminium oxide having a particle size of about 30 m&mgr;, and from 1 to 4% by weight of polymers such as gum tragacanth, agar, pectin, vinyl polymers and basic polymers.
The applicant has found, surprisingly, that the use of particles essentially consisting of aluminium oxide and having a mean primary size in numerical terms of less than 200 nm, with a particular surfactant base comprising an anionic surfactant and an amphoteric or nonionic surfactant in washing compositions, made it possible to obtain good retention and a certain volume of the hair, that is to say a hairstyling effect. It is observed, moreover, that the keratinous fibres are hardened and straightened.
The subject of the present invention is therefore a washing composition comprising, in a cosmetically acceptable aqueous medium, particles essentially consisting of aluminium oxide and having a mean primary size in numerical terms of less than 200 nm, at least one anionic surfactant and at least one amphoteric or nonionic surfactant.
Another subject of the invention consists in a method for the cosmetic treatment of keratinous fibres using the composition according to the invention.
The subject of the invention is also a use of the composition according to the invention as a shampoo.
Other objectives, characteristics, aspects and advantages of the invention will emerge more clearly on reading the description and the various examples which follow.
According to the invention, the composition for washing keratinous materials comprises, in a cosmetically acceptable aqueous medium, particles essentially consisting of aluminium oxide and having a mean primary size in numerical terms of less than 200 nm, at least one anionic surfactant and at least one amphoteric or nonionic surfactant.
The expression “cosmetically acceptable aqueous medium” is understood to mean an aqueous medium which is compatible with keratinous materials such as the skin and the hair.
The expression “particles essentially consisting of aluminium oxide” is understood to mean particles consisting, at more than 90% by weight, of aluminium oxide.
For the purposes of the present invention, the expression “primary size of a particle” is understood to mean the maximum size which it is possible to measure between two diametrically opposite points of an individual particle. The size may be determined by transmission electron microscopy or from the measurement of the specific surface area by the BET method.
The mean primary size in numerical terms of the particles is preferably between 5 and 50 nm.
The particles of aluminium oxide according to the invention essentially consist of any optionally hydrated alumina such as, for example, boehmite.
The particles may have any shape such as, for example, the shape of a sphere, of flakes, of needles or of plates. Preferably, they are substantially spherical.
The particles of aluminium oxide may be used in the composition according to the invention in a quantity ranging from 0.01 to 20% by weight, preferably from 0.1 to 5% by weight, relative to the total weight of the washing composition of the invention.
As anionic surfactants which can be used in the present invention, there may be mentioned in particular salts, in particular alkali metal salts such as sodium salts, ammonium salts, amine salts, salts of amino alcohols or salts of alkaline-earth metals, for example, of magnesium, of the following types: alkyl sulphates, alkyl ether sulphates, alkyl amidoether sulphates, alkyl aryl polyether sulphates, monoglyceride sulphates; alkyl sulphonates, alkyl amide sulphonates, alkyl aryl sulphonates, &agr;-olefin sulphonates, paraffin sulphonates; alkyl sulphosuccinates, alkyl ether sulphosuccinates, alkyl amide sulphosuccinates; alkyl sulphoacetates; acyl sarcosinates; and acyl glutamates, the alkyl and acyl groups of all these compounds comprising from 6 to 24 carbon atoms and the aryl group preferably denoting a phenyl or benzyl group. It is also possible to use esters of C
6
-C
24
alkyl and of polyglycosidecarboxylic acids such as alkyl glucoside citrates, alkyl polyglycoside tartrates, alkyl polyglycoside sulphosuccinates; alkyl sulphosuccinamates, acyl isethionates and N-acyltaurates, the alkyl or acyl group of all these compounds comprising from 12 to 20 carbon atoms. Among the anionic surfactants which may be further used, there may also be mentioned acyl lactylates in which the acyl group comprises from 8 to 20 carbon atoms.
In addition, there may be further mentioned alkyl D-galactoside uronic acids and their salts such as polyoxyalkylenated (C
6
-C
24
)alkyl ether carboxylic acids, polyoxyalkylenated (C
6
-C
24
) alkyl (C
6
-C
24
) aryl ether carboxylic acids, polyoxyalkylenated (C
6
-C
24
)alkyl amido-ether carboxylic acids and their salts, in particular those comprising from 2 to 50 ethylene oxide groups, and mixtures thereof.
The anionic surfactants described above may be used alone or in the form of a mixture. The alkyl sulphates, alkyl ether sulphates and alkyl ether carboxylates and mixtures thereof are preferably used, in particular in the form of their alkali or alkaline-earth metal, ammonium, amine or amino alcohol salts.
The amphoteric surfactants which are suitable in the present invention may be in particular secondary or tertiary aliphatic amine derivatives in which the aliphatic group is a linear or branched chain comprising from 8 to 22 carbon atoms and containing at least one water-solubilizing anionic group such as, for example, a carboxylate, sulphonate, sulphate, phosphate or phosphonate group; there may also be mentioned (C
8
-C
20
)alkyl betaines, sulphobetaines, (C
8
-C
20
)alkyl amido (C
6
-C
8
)alkyl betaines or (C
8
-C
20
)alkyl amido (C
6
-C
8
)alkyl sulphobetaines; and mixtures thereof.
Among the amine derivatives, there may be mentioned the products marketed under the name MIRANOL®, as described in U.S. Pat. Nos. 2,528,378 and 2,781,354 and classified in the CTFA dictionary, 3rd edition, 1982, under the names Amphocarboxyglycinate and Amphocarboxypropionate having the respective structures (1) and (2).
R
a
—CONHCH
2
CH
2
—N(R
b
)(R
c
)(CH
2
COO
−
) (1)
in which:
R
a
represents an alkyl group derived from an acid R
a
-COOH present in hydrolysed copra oil, a heptyl, nonyl or undecyl group,
R
b
represents a &bgr;-hydroxyethyl group, and
R
c
represents a carboxymethyl group; and
R
a′
—CONHCH
2
CH
2
—N(B)(C) (2)
in which:
B represents —CH
2
CH
2
OX′,
C represents —(CH
2
)
z
—Y′, with z=1 or 2,
X′ represents the group —CH
2
CH
2
—COOH or a hydrogen atom,
Y′ represents —COOH or the group —CH
2
—CHOH—SO
3
H, R
a′
represents an alkyl group of an acid R
a′
—COOH present in copra oil or in hydrolysed linseed oil, an alkyl group, in particular as C
17
and its isoform, or an unsaturated C
17
group.
These compounds are classified in the CTFA dictionary, 5th edition, 1993, under the names disodium cocoamphodiacetate, disodium lauroamphodiacetate, disodium caprylamphodiacetate, disodium capryloamphodiacetate, disodium cocoamphodipropionate, disodium lauroamphodipropionate, disodium caprylamphodipropionate, disodium capryloamphodipropionate, lauroamphodipropionic acid or cocoamphodipropionic acid.
By way of example, there may be mentioned the cocoamphodiacetate marketed under the trade name MIRANOL® C2M concentrated by the company RHODIA.
The nonionic surfactants which are suitable in the invention are compounds well known per se (see in particular in this regard <<Handbook of Surfactants>> by M. R. PORTER, Blackie & Son publishers (Glasgow and Lo
Giroud Franck
Perron Béatrice
Restle Serge
Samain Henri
L'Oreal
Ogden Necholus
Price D. Douglas
Steptoe & Johnson LLP
LandOfFree
Keratinous washing composition comprising particles of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Keratinous washing composition comprising particles of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Keratinous washing composition comprising particles of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3084706