Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
1999-11-12
2002-06-25
Boyer, Charles (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, C510S122000, C510S126000, C510S398000, C510S434000, C510S466000, C510S504000, C510S533000
Reexamination Certificate
active
06410493
ABSTRACT:
The present invention relates to cosmetic conditioning and detergent compositions, and the use of such compositions, for the simultaneous care and washing of keratinous substances.
For the cleansing and/or washing of the hair and/or skin, the use of detergent compositions (shampoo or shower gel) based essentially on conventional surfactants of, in particular, anionic, nonionic and/or amphoteric type, but more particularly of anionic type, is common. These compositions are applied to wetted hair or skin and the foam generated by massaging or rubbing with the hands makes it possible, after rinsing with water, to remove the various types of dirt initially present on the hair or skin.
These base compositions can have good washing power, but their attendant intrinsic cosmetic properties, however, are fairly weak. The relatively aggressive nature of cleansing treatments using those conventional surfactants may, in the long term, result in more or less marked damage to the keratinous substances. The damage is associated, in particular, with the gradual removal of the lipids or proteins present in or on the surface of these substances.
In order to improve the cosmetic properties of the above detergent compositions, and more particularly those detergent compositions which are required to be applied to sensitized hair (i.e. hair which is damaged or embrittled under the chemical effect, in particular, of atmospheric agents and/or hair treatments, such as permanent-waving, dyeing or bleaching), it is now customary to introduce into these compositions additional cosmetic agents, known as conditioners, which are intended primarily to repair or limit the harmful or undesirable effects brought about by the various treatments or attacks to which the hair fibers are more or less repeatedly subjected. These conditioners may of course also improve the cosmetic comportment of natural hair.
Conditioners most commonly used in shampoos are cationic polymers, silicones and/or silicone derivatives that impart to the washed, dry, or wetted hair, increased ease in disentangling, softness, and smoothing relative to corresponding cleansing compositions without these conditioners.
Despite the progress recently achieved in the field of shampoos based on cationic polymers, in particular the cationic derivatives of cellulose or of guar gum and of silicone, these conditioners do not provide complete satisfaction, so that a need still exists for products exhibiting better performance levels in terms of one or more of the abovementioned cosmetic properties.
According to British patent application GB-A-1513672, strongly cationic polymers can be used in compositions for the washing or care of hair in order to facilitate disentangling of the hair and to impart softness and manageability to it. The use of these cationic polymers for that purpose, however, presents a variety of disadvantages. These polymers undergo significant deposition in the course of repeated use because of their strong affinity for the hair, leading to undesirable effects such as an unpleasant feel, a tautening of the hair, and an inter-fiber adhesion which affects styling. These disadvantages are more marked in the case of fine hair, which lacks shape retention, vitality and body.
An object of the present invention is to overcome the abovementioned disadvantages by providing conditioning and detergent compositions which have sufficient foaming properties and exhibit good conditioning properties, for example disentangling, softness and sheen properties, without conferring greasiness, heaviness or an unpleasant feel.
Following much research carried out into this matter, the inventor has now discovered, entirely unexpectedly and surprisingly, that by combining a non-amido functional silicone and a specific cationic polymer with an anionic surfactant of carboxylic type it is possible to obtain detergent compositions that can have excellent cosmetic properties, for example disentangling, softness, sheen and volume properties for the keratinous substances treated, while retaining the good intrinsic washing power and foaming power of the compositions.
These new compositions make it possible to deposit a large quantity of silicone on the keratinous substances (e.g., hair) without a greasy feel or appearance.
The compositions in accordance with the invention can impart to keratinous substances, especially hair, a notable treatment effect which is manifested, for example, in ease of disentangling as well as providing body, lightness, smoothing, softness and manageability without any heaviness.
These effects-are entirely unexpected. The inventor has in fact found that the addition of the cationic polymers described below to shampoo compositions based on sulphate surfactant and silicone did not improve the cosmetic properties of the composition and that, on the contrary, load effects appeared.
The present invention relates to new cosmetic conditioning and detergent compositions comprising, in an aqueous medium,
(A) at least one anionic surfactant of carboxylic type which does not include a sulphate or sulphonate function,
(B) at least one silicone which does not include an amide function, and
(C) at least one cationic polymer which contains quaternary ammonium groups in the main chain.
The present invention additionally relates to the use of the composition according to the invention for the simultaneous care and washing of keratinous substances such as the hair and skin.
The present invention will now be described in detail.
Examples of the anionic surfactants of carboxylic type, i.e., anionic surfactants derived from a carboxylic acid and which do not include a sulphate or sulphonate function, that can be used in compositions according to this invention include: alkyl-D-galactoside-uronic acids and their salts; polyalkoxylated C
6
-C
24
-alkyl ether carboxylic acids; polyalkoxylated (C
6
-C
24
-alkyl)aryl ether carboxylic acids; polyalkoxylated C
6
-C
24
-alkylamido ether carboxylic acids and their salts; including those containing from 2 to 50 alkylene oxide groups such as ethylene oxide groups; (C
6
-C
24
-acyl)sarcosinates; (C
6
-C
24
-acyl)- glutamates; and the esters of carboxylic (C
6
-C
24
-alkyl)polyglycosides, such as alkylglucoside citrates and alkylpolyglycoside tartrates. The esters of carboxylic polyglycosides are sold, for example, under the names EUCAROL APG/EC and EUCAROL APG/ET by the LAMBERTI company.
It is also possible to use mixtures of these surfactants. Accordingly, the term “chosen from” as it is used hereinafter implies that mixtures of the listed elements may be chosen, in addition to the individual elements.
In one embodiment of the invention, the anionic surfactants of carboxylic type are chosen from polyalkoxylated C
6
-C
24
-alkyl ether carboxylic acids; polyalkoxylated C
6
-C
24
-alkylamido ether carboxylic acids, for example, those containing from 2 to 15 alkylene oxide groups; and (C
6
-C
24
-alkyl)polyglycoside-carboxylic esters.
Silicones that can be used in accordance with the invention may be soluble or insoluble in water or in the final composition. They may be volatile or nonvolatile.
Examples of silicones that can be used in accordance with the invention include organopolysiloxanes which are insoluble in the composition and which may be in the form of oils, waxes, resins or gums.
Organopolysiloxanes are defined in greater detail in the work by Walter NOLL entitled “Chemistry and Technology of Silicones” (1968, Academic Press), the disclosure of which is hereby incorporated by reference. They may be volatile or nonvolatile.
When volatile, the silicones can be chosen from silicones having a boiling point ranging from 60° C. to 260° C., including, but not limited to the cyclic and linear volatile silicones listed below at (i) and (ii), respectively:
(I) Cyclic silicones containing 3 to 7 silicon atoms. In one embodiment of the invention, the cyclic silicones contain from 4 to 5 silicon atoms. Such a silicone is, for example, the octamethylcyclotetrasiloxane sold under the name “VOLATILE SILICONE 7207” by UNION CARBIDE
Boyer Charles
Finnegan Henderson Farabow Garrett & Dunner LLP
L'Oreal (S.A.)
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