Drug – bio-affecting and body treating compositions – Live hair or scalp treating compositions – Anionic surfactant containing
Reexamination Certificate
2001-03-08
2002-12-24
Page, Thurman K. (Department: 1615)
Drug, bio-affecting and body treating compositions
Live hair or scalp treating compositions
Anionic surfactant containing
C424S070100, C424S070190, C424S070220, C424S070310
Reexamination Certificate
active
06497866
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The subject matter of the present invention is a method of treating hair with a foam made from a single-phase, foam-forming hair treatment composition to produce a pomade effect, especially a fixing effect and luster in the treated hair.
2. Prior Art
Research in the field of hair treatment compositions has included study of preparations in the form of pomades for many years. These pomades facilitate hair shaping and increase the luster and hold of a hairstyle. Pomades are usually applied as non-transparent masses in the form of creamy emulsions or gels. However the emulsions or gels are difficult to distribute evenly on the hair, so that hair styling is difficult, especially when only small sections of the hair are treated with this agent.
The products conventionally employed to produce a pomade effect, which means to simultaneously produce an intense luster and hold, have a high proportion of water-insoluble materials, such as fatty bodies. Because of these fatty bodies however the hair is strongly loaded and the product is removed only with difficulty by means of a shampoo to the extent that the hair does not have a residue. Furthermore this type of product suffers from the problem of undesirable separation of water and fat phase.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a method with which an intense pomade effect can be obtained, whereby the typically negative or poor properties of the prior art compositions, such as poor distributability on the hair, strong load of the hair, poor washability from the hair and phase separation of the product are avoided.
Pomade in the form of foam that breaks up when worked into the hair or on styling the hair offers a better possibility for application to hair.
Low or average viscosity masses with pomade properties can be applied with the help of aerosol foam. The advantage of a propellant aerosol product is that it is very easy to produce foam with it, even with small amounts of only poorly foaming contents. It is however a disadvantageously difficult problem to stabilize the propellant gas in the aqueous phase for packing the composition as a single-phase product. Phase separation can change the properties important to the composition's action as a pomade as well as its aesthetic properties. If the aerosol product should be packaged in a transparent container, only glass is considered for use as a packaging material. The packaging of an aerosol product in a glass container however results in a potential safety problem or a risk.
Foaming without propellant gas occurs in a simple way by the use of a strongly foaming surfactant compound selected from the classes of anionic surfactants, amphoteric surfactants or nonionic surfactants. The disadvantage of using these surfactants in concentrations which are required so that the pomade composition will be in the form of a foam is that when the foam composition is applied to the hair it does not break up. Furthermore an after-foaming occurs on the hair, as it does similarly with a shampoo, which is undesirable for application of a pomade. Furthermore pomade masses, which contain large proportions of these surfactants are too viscose to guarantee that good foaming action can be obtained without the help of a propellant gas. Dilution with organic solvent leads of course to a reduction in viscosity, however a drastic reduction in foamability also occurs because of the dilution. If the pomade composition is diluted with water until it reaches a viscosity at which it is easy to form foam, this leads to a reduction in the pomade effect.
According to the invention these difficulties are overcome by providing a product or article of manufacture for hair treatment consisting of
A) single-phase composition containing
a1) at least one anionic, carboxylate-group-containing surfactant compound, and
a2) at least one nonionic emulsifier; in combination with
B) an apparatus for making a foam from the single-phase composition (A).
The composition provides outstanding foam without the use of a propellant gas and can be worked into the hair satisfactorily without a disturbing after-foam formation. It imparts good shapability, a long-lasting luster and a long-lasting soft feel to the hair.
The carboxylate-group-containing surfactant compound or compounds is or are preferably present in the composition in an amount of from 0.1 to 30 percent by weight, especially preferably in an amount of from 1 to 10 percent by weight. The preferred carboxylate-group-containing surfactant compound or compounds is or are sulfosuccinate or sulfosuccinates, sulfosuccinamate or sulfosuccinamates, carboxylated fatty alcohol ethoxylate or ethoxylates, carboxylated fatty acid amide ethoxylate or ethoxylates or their mixtures.
Preferably the surfactant compound (al) has the general formula (I):
R
1
—X—(CHR
2
—CHR
3
—O)
n
—Y—CO
2
−
1/m M
m+
(I),
wherein —X—represents —COO—, —CONH—, —O— or —NH—; —Y— represents an alkylene group, preferably with 1 to 4 carbon atoms, especially a methylene group or —Y—CO
2
−
represents a sulfosuccinate group; R
1
represents an unsaturated or saturated, branched or non-branch hydrocarbon group, preferably with 5 to 20 carbon atoms, which can be substituted with at least one hydroxy group, or R
1
—X— represents an alkoxylated or non-alkoxylated alkyl citrate group; R
2
and R
3
, independently of each other, represent hydrogen or a methyl group; n is the degree of alkoxylation and is between 0 and 20, preferably between 0 and 10; M represents one or more counter ions which neutralize the negative charge on the anion, for example a metal ion or a quaternary ammonium cation, and m is the valence of the counter ion M. If —Y—CO
2
−
stands for a sulfosuccinate group, it is preferably in the form —C(O)—CHR
4
—CHR
5
—CO
2
−
, wherein one of the R
4
and R
5
is hydrogen and the other is SO
3
−
. When R
1
—X represents an alkoxylated or non-alkoxylated alkyl citrate group, it is preferably in the form
R
6
O—(CH
2
CH
2
O)
n1
—CO—CH
2
—C(OH)(CO—(OCH
2
CH
2
)
n2
OH)—CH
2
—COO
−
,
wherein R
6
represents a saturated or unsaturated, branched or non-branched hydrocarbon group preferably with 5 to 20 carbon atoms, which can be substituted with at least one hydroxy group, and nl and n2 are the degrees of alkoxylation, each of which is between 0 to 10, preferably between 0 and 5.
As carboxylate-group-containing surfactant compound or compounds the following are particularly suitable for ingredient al:
compounds of the formula (II)
R
1
—X—(CHR
2
—CHR
3
—O)
n
—C(O)—CHR
2
—CHR
3
—CO
2
−
1/m M
m+
(II),
wherein R
2
, R
3
, n, m and M have the same significance as above and wherein at least one of the groups R
2
and R
3
represents hydrogen; R
1
represents a saturated or unsaturated, branched or non-branched hydrocarbon group, preferably with 5 to 20 carbon atoms, which can be substituted with at least one hydroxy group; —X—represents —COO—, —CONH—or —NH— and the groups R
4
and R
5
, independently of each other, represent hydrogen or SO
3
−
, but at least one of the groups must be hydrogen.
Suitable sulfosuccinates are, for example, known under the following INCI names disodium ricinol amido MEA sulfosuccinate, disodium cocamido MIPA sulfosuccinate, disodium PEG-4 cocamido MIPA-sulfosuccinate, disodium PEG-5 lauryl citrate sulfosuccinate, disodium cocamido PEG-3 sulfosuccionate, disodium laneth-5 sulfosuccinate or disodium undecylene amido MEA-sulfosuccinate. A suitable sulfosuccinamate is for example disodium tallow sulfosuccinamate (INCI name).
alkyl citrates of the formula (III),
R
6
O—(CH
2
CH
2
O)
n1
—CO—CH
2
—C(OH)(CO—(OCH
2
CH
2
)
n2
OH)—CH
2
—CO—(OCH
2
CH
2
)
n3
—O—C(O)—CHR
4
—CHR
5
—CO
2
−
1/m M
m+
(III),
wherein m and M have the significance as defined above; R
6
represents a saturated or unsaturated, branched or non-branched hydrocarbon group preferably with 5 to 20 carbon atoms, which can be substituted with at least
Irrgang Bernhard
Karlen Thomas
Page Thurman K.
Sheikh Humera N.
Wella Aktiengesellschaft
LandOfFree
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