Hair treatment composition

Details Hair treatment composition Hair treatment composition

2000-12-15

2003-11-11

Gupta, Yogendra N. (Department: 1751)

Drug, bio-affecting and body treating compositions

Live hair or scalp treating compositions

Permanent waving or straightening

C424S070100, C424S070210, C510S122000, C510S328000

Reexamination Certificate

active

06645480

ABSTRACT:

TECHNICAL FIELD
The present invention relates to hair treatment compositions and more particularly to conditioning hair rinses, which have the effect of cleansing and conditioning.
BACKGROUND OF THE INVENTION
One of the principal components in most cleansing products is a surfactant. Surfactants are used to remove dirt and debris and also to impart a foaming characteristic to the cleansing product which gives the consumer a perceived indication that the product is functioning as a cleanser.
When washing the hair with conventional cleansing compositions, the natural oils are removed together with the dirt and unwanted oils. When too much of the natural oil is removed, for example by especially frequent washing, the hair becomes less easy to comb or style, and subject to static build-up causing “flyaway.” Furthermore, the use of such hair treatments as permanent waving, dyeing, teasing, and bleaching can adversely affect the physical condition of hair, as can atmospheric conditions, such as sunlight, which may cause photo-catalysed oxidation. These factors may result in hair with poor texture, which is difficult to manage and comb, whether wet or dry.
Hair conditioners have been developed to try to restore the condition of the hair. These compositions are normally applied to hair after shampooing, left on the hair for a period of time and rinsed off. Products which improve the appearance, feel, and manageability of hair have gained increasing acceptance and popularity with consumers.
Accordingly, compositions which “condition” hair generally improve the manageability, appearance and feel of hair, by reducing dry static and increasing the ease of combing both wet and dry hair. Such conditioning products are well known.
Many conditioning products contain long chain quaternary ammonium compounds combined with lipid materials, such as fatty alcohols. While such products have particularly good cosmetic in-use and rheologic characteristics, they may leave the hair greasy or oily, and subject to resoiling with dirt and sebum.
In recent years, there have been attempts to incorporate higher levels of hair conditioning benefit agents into a cleansing surfactant-based product formulation to give the consumer the benefit of having one product with dual functions, for example, a shampoo with conditioner. The object of such “2-in-1” products is to optimise the deposition of the hair conditioning benefit agent onto the hair surface while maintaining both the maximum cleaning and lathering properties of the formulation.
Problems arise when trying to combine a hair conditioning agent into a cleansing surfactant-based formulation, due to the competing functions of ingredients. For example, the use of one or more conditioning agents in a formulation may suppress the foaming characteristic of the surfactant. Also, reaction or complexation of the surfactant and the conditioning agent lowers the amount of surfactant available.
Thus, when a conditioning agent such as a silicone, or a mineral or vegetable oil, is used in a formulation, normally the amount of surfactant in the formulation is increased so that the formulation will provide a level of foaming and cleansing which is acceptable to the consumer. However, increasing the amount of surfactant used in the formulation lowers the amount of conditioning agent deposited onto a surface. Thus, at high levels of cleansing surfactant the beneficial effect of the conditioning agent is lost. Conversely, if the level of surfactant is maintained then the level of conditioning agent must be lowered and, again, the beneficial effect of the conditioning agent is lost.
It has now been discovered that hair conditioning formulations containing a particular combination of cationic surfactants, have improved hair care benefits while maintaining excellent in-use characteristics.
Surprisingly, although formulations of the invention are based principally on cationic surfactant, and generally contain no anionic or amphoteric surfactant, they provide an acceptable level of cleaning and lathering whilst still conveying the wet slippy feel desired by consumers in connection with conventional hair conditioners. Furthermore, formulations of the invention also provide improved styling benefits to the hair.
SUMMARY OF THE INVENTION
The present invention provides a hair treatment composition having cleansing and conditioning properties comprising, in an aqueous medium:
(i) a first cationic surfactant corresponding to the general formula (I):
[N(R
1
) (R
2
) (R
3
) (R
4
)]
+
(X)
−
in which R
1
is a hydrocarbyl chain having 16 or more carbon atoms, and R
2
, R
3
and R
4
are independently selected from hydrocarbyl chains of from 1 to about 30 carbon atoms and X is a salt-forming anion such as those selected from halogen, (e.g. chloride, bromide), acetate, citrate, lactate, glycolate, phosphate nitrate, sulphate, and alkylsulphate radicals;
(ii) a second cationic surfactant corresponding to the general formula (II) or the general formula (III);
general formula (II) being:
[N(R
1
) (R
2
) (R
3
) (R
4
)]
+
(X)
−
in which R
1
is a hydrocarbyl chain having from 8 to 20, preferably from 8 to 18, more preferably from 8 to 14 carbon atoms, and R
2
, R
3
and R
4
are independently selected from (a) hydrocarbyl chains of from 1 to about 30 carbon atoms, or (b) functionalised hydrocarbyl chains having from 1 to about 30 carbon atoms and containing one or more aromatic, ether, ester, amido or amino moieties present as substituents or as linkages in the radical chain, X is a salt-forming anion such as those selected from halogen, (e.g. chloride, bromide), acetate, citrate, lactate, glycolate, phosphate nitrate, sulphate, and alkylsulphate radicals, and at least one of the R
1
to R
4
radicals contains one or more hydrophilic moieties selected from alkoxy (preferably C
1
-C
3
alkoxy), polyoxyalkylene (preferably C
1
-C
3
polyoxyalkylene), alkylamido, hydroxyalkyl, alkylester, and combinations thereof,
and, general formula (III) being:
[N(R
1
) (R
2
) (R
3
) (R
4
)]
+
(X)
−
in which
R
1
is a linear or branched, preferably linear, saturated or unsaturated hydrocarbyl chain having from 5 to 30 carbon atoms, which is linked either directly to the quaternary nitrogen atom or via a functionalised link moiety such as an alkylester, alkylamido or an alkoxy, or combinations thereof;
R
2
is a linear or branched, preferably linear, saturated or unsaturated hydrocarbyl chain having from 1 to 30 carbon atoms, and is optionally substituted with one or more hydroxy groups;
R
3
is a linear or branched, preferably linear, saturated or unsaturated hydrocarbyl chain having from 1 to 30 carbon atoms, and optionally contains one or more groups selected from hydroxy, alkoxy and polyoxyalkylene groups, and combinations thereof, suitably present as either substituents on the hydrocarbyl chain or as linkages in the hydrocarbyl chain;
R
4
is a linear or branched saturated or unsaturated hydrocarbyl chain having from 1 to 30 carbon atoms, and which contains one or more groups selected from hydroxy, aromatic, ether, ester, amido and amino groups, and combinations thereof, suitably present as either substituents on the hydrocarbyl chain or as linkages in the hydrocarbyl chain.
and,
X is a salt-forming anion such as those selected from halogen, (e.g. chloride, bromide), acetate, citrate, lactate, glycolate, phosphate nitrate, sulphate, and alkylsulphate radicals;
(iii) a lipid material having at least one carbon chain of at least 12 carbon atoms in length.
and wherein the first cationic surfactant (i) and second cationic surfactant (ii) together amount to more than 2% by weight of the hair treatment composition.
DETAILED DESCRIPTION OF THE INVENTION
As used herein, the term hydrocarbyl chain means an alkyl or alkenyl chain.
Reference herein in the general formulas (II) to (VI) to the number of carbon atoms in the hydrocarbyl chain means the total number of carbon atoms, including, if present, those in any substituent groups on the hydrocarbyl chain

Affiliated with

Also associated with

Rating

Hair treatment composition does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hair treatment composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hair treatment composition will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3173207