FIELD OF THE INVENTION

The present invention relates to a shampoo composition with superior conditioning attributes, and more particularly, relates to a synergistic combination of a fatty acid ester and amidoamine which when present in selective levels in combination with pre-emulsified silicones in a surfactant based shampoo composition significantly enhances the conditioning performance of said pre-emulsified silicones in a mix of surfactants such that the shampoo composition is adapted to deliver superior conditioning benefits to hair. Advantageously thus, the present invention is directed to such conditioning shampoo compositions adapted to deliver superior conditioning benefits, combability, softness and shine to the hair.

BACKGROUND OF THE INVENTION

The use of silicones as conditioning agents in cosmetic composition is widely documented in patent literature. Generally the silicones are dispersed /suspended in the composition which is then applied to the hair to deposit silicones. The prior art literature suggests that steps have to be taken to prevent creaming of the emulsified droplets of the silicones present in the composition during storage. To prevent such a situation, in the prior art, certain materials such as certain gums and/ or crystalline materials like ethylene glycol distearate are incorporated in the composition. Prior art also teaches incorporating silicones as micro-emulsion. In such a process high viscosity emulsion is used. It is known that such a composition does not give sufficient conditioning benefit for people.

To overcome this problem it has been suggested to use microemulsions of silicone wherein the silicone is very slightly cross linked in the emulsion form and in addition, use of specific type of cationic guar gum derivative has also been recommended. However the conditioning delivered by the compositions using these silicones are not always acceptable to the consumers as the conditioning performance may be insufficient for many people particularly in regions such as Japan, South East Asia, India and China where consumers desire high level of conditioning. The prior art literature suggests, to overcome these problems, the combination of non-functionalized silicone and amino functionalized silicone in shampoo formulations.

Reference is drawn to US patent 4438096 (HeleneCurtis) discloses a shampoo composition containing Myristyl myristate as a pearlising agent along with water dispersible alkyl and hydroxy alkyl substituted polysaccharide to give good break stress, break elongation and break strain in addition to good combability.

In W02009/072027 (Proctor& Gamble) a shampoo composition is disclosed which is claimed to comprise of one or more of detersive surfactants, and a gel network phase comprising a first component containing one or more fatty acids, and a second component containing one or more additional fatty amphiphiles and water wherein the ratio of first component to second component Is 10:1 to about 1:5 as a requirement for formation gel network which delivers smoothfeel, manageability and long lasting moisturized feel on a dry hair.

However, the conditioning delivered involving such available formulations are not always acceptable to the consumers as the conditioning performance may be insufficient for many people who desire high level of conditioning.

Therefore it is clearly apparent that in spite of the presence of such wide varieties of shampoo compositions, there still remains a continuing need in the art to provide for new, improved and stable shampoo compositions to impart superior benefits to hair by way of delivering higher level of conditioning such as improved shine and softness along with superior combability.

OBJECTS OF THE INVENTION

It is therefore the basic object of the present invention to provide for a conditioning cosmetic compositions such as shampoos that would be adapted to deliver superior conditioning benefits by suitably enhancing the conditioning performance of pre-emulsified particles of silicones in surfactant based shampoo compositions.

Another object of the present invention is to provide for the said cosmetic composition preferably shampoo compositions adapted to deliver superior conditioning benefits, combability, softness and shine to the hair.

Further object of the present invention is directed to provide for shampoo/like compositions with superior conditioning benefits, combability, softness and shine to the hair.

SUMMARY OF THE INVENTION

Thus according to a basic aspect of the present invention there is provided a shampoo composition with superior conditioning attributes comprising ingredients in addition to water (i) pre-emulsified silicones, (ii) atleast one fatty acid ester, (iii) atleast one amidoamine wherein the ratio of fatty acid ester to amidoamine is in the range of from 2:0.5 to 0.5:2; (iv) at least one cationic polymer, and (v) atleast one surfactant selected from anionic, nonionic, zwitterionic or amphoteric surfactants or mixtures thereof.

According to another preferred aspect of the present invention there is provided said shampoo composition wherein the fatty acid chain of said fatty acid ester comprises at least 12 carbon atoms (C12) and are selected from myrsityl myristate, myristylpalmitate, lauryl laurate or mixtures thereof.

Importantly, it is thus a surprising finding by way of the present invention that when selective levels of fatty acid ester and amidoamine are present in combination with the pre-emulsified silicones in a surfactant based shampoo composition the same is found to unexpectedly enhance the conditioning performance of said pre-emulsified silicones in a mix of surfactants such that the shampoo composition advantageously delivers superior conditioning benefits, combability, softness and shine to the hair.

According to yet another preferred aspect of the present invention there is provided said
shampoo composition wherein said amidoamine are selected from behenamidoethyldimethylamine, behenamidoethyldiethylamine, behenamidoethyl
dimethylamine, arachidamidopropyldimethylamine, Arachidamidoethyldiethylamine, steramidopropyldimethylamine or mixtures thereof.

According to another preferred aspect of the present invention there is provided said shampoo composition wherein the pre-emulsified silicones is pre-dispersed emulsion of silicones present in the range of 0.5% to 3 % and are selected from dimethicone or dimethiconol or trimethysilylamodimethicone or mixtures thereof.

According to yet another preferred aspect of the present invention there is provided said shampoo composition wherein said cationic polymers are present in the range of 0.01% to 0.5% and are selected from copolymers of vinylmonomers having cationic amine or quaternary ammonium functionalities with water soluble spacer monomers such as (meth) acylamide, alkyl and dialkyi (meth) acrylamides, Alkyl (meth) acrylate, vinyl caprolactone and vinyl pyrrolidone wherein said alkyl and dialkyi substituted monomers preferably have C1-C7 alkyl groups, more preferably Cl-3 alkyl groups wherein suitable spacers include vinyl esters, vinyl alcohol, maleic anhydride, propylene glycol and ethylene glycol, Polyquaternium-10, Polyquaternium-7, Polyquaternium-6, Polyquaternium-16, Polyquaternium-11 and terpolymers of acrylic acid with dimethyldiallylammonium chloride and acrylamide (referred to in the industry by PCPC as Polyquaternium 39), and terpolymers of acrylic acid with methacrylamidopropyl trimethylammonium chloride and methyl acrylate (referred to in the industry by PCPC as Polyquaternium 47); and are also preferably selected from a class of cationic polymers formed from methacrylamidopropyl trimonium chloride and/or acrylamidopropyl trimonium chloride and copolymers of these monomers with acrylamide (Specific examples of these materials include polymethyacrylamidopropyl trimonium chloride, available under the trade name Polycare 133, from Rhone-Poulenc, and acrylamidopyltrimonium chloride/acrylamide copolymer which is available under the trade name of Salcare SC60 from Ciba); and are also preferably selected from the class of Hydrophobically modified hydroxyethyl cellulose (Example of these material is Softcat SL polymer series from Amerchol); or are selected from the class of cationic polysaccharides including cationic guar gum derivative, especially guar hydroxypropyltrimethylammonium chloride.

Preferably said cationic polysaccharides include cationic cellulose derivatives such as those salts of hydroxyethyl cellulose reacted with trimethyl ammonium substituted epoxide, referred to in the industry (Cosmetic, Toiletry and Fragrance Association - usually referred to as CTFA) as Polyquaternium 10. Specific examples of these materials include those polymers available from Amerchol Corporation in their Polymer JR series of polymers, such as Polymer JR125, Polymer JR400 and Polymer JR30M. Other suitable types of cationic cellulose include the polymeric quaternary ammonium salts of hydroxyethyl cellulose reacted with laury! dimethyl ammonium-substituted epoxide referred to in the industry (CTFA) as Polyquaternium 24. Yet another preferred class of cationic polysaccharide include cationic guar gum derivative, especially guar hydroxypropyltrimethylammonium chloride. Specific examples of these materials include those polymers available from Rhodia in their JAGUAR series of polymers, such as JAGUAR C13S and JAGUAR CI7.

According to another preferred aspect of the present invention there is provided said shampoo composition wherein said atleast one surfactant selected from anionic, nonionic, zwitterionic or amphoteric surfactants or mixtures thereof includes alkyl sulphates, alkylether sulphates, alkaryl sulphonates,alkanoyl isethionates, alkyl succinates, alkyl sulfosucclnates, N-alkyI sarcosinates, alkyl phosphates, alkyl ether phosphates, alkyl ether carboxylates, Alpha-olefin sulfonates especially their sodium. Magnesium and Ammonium and mono-, di-, and triethanolamine salts, wherein the alkyl and acyl groups generally contains from 8 to 18 carbon atoms and may be unsaturated, and wherein the alkyl ether sulphates and alkyl ether phosphates and alkyl ether carboxylates may contain from 1 to 10 ethylene oxide or propylene oxide units per molecule, wherein typical anionic cleansing surfactants includes sodium oleyl succinate. Ammonium Lauryl sulphosuccinate, ammonium lauryl sulphate, sodium dodecyl benzene sulphonate, triethanolamine dodecyl benzene sulphonate, sodium cocoyi isethionate, sodium lauryl isethionate and Sodium N-Lauryl sarcosinate. More preferably the anionic surfactants include sodium lauryl sulphate, sodium lauryl ether sulphate(n) EO(where n ranges from 1 to 3) Ammonium lauryl sulphate. Ammonium lauryl ether sulphate(n) EO(where n ranges from 1 to 3) and mixtures thereof. The co-surfactants according to the composition of the present invention are amphoteric or zwitterionic surfactants including alkylamine oxides, alkyl betains, alkyl amidopropyl betains, alkyl sulpho betains, (sultaines), alkyl giycinates, alkylcarboxy glycinates, alkylamidopropylglycinates, alkylamidopropylhydroxy sultaines, acyl taurates, and acyl glutamates, where in the alkyl and acyl groups have from 8 to 19 carbon atoms. Typical amphoteric and zwitterionic surfactants for use in shampoos of the invention include lauryl amine oxide, cocodimethylsulphopropyibetaine and preferably lauryl betaine, cocoamidopropylbetains and sodium cocoamphopropionate.

Non ionic surfactants can be included in the shampoo composition of the invention include condensation products of aliphatic (C8-C18) primary or secondary linear or branched chain alcohols or phenols with alkylene oxides, usually ethylene oxide and generally having from 6 to 30 ethylene groups. Other representative nonionic surfactants Include mono-or di-alkyi alkanolamides. Examples include cocomono- or di- ethanolamide and coco mono-isopropanolamide.

Further non ionic surfactants that which can be included in shampoo compositions of the invention are the alkylpolyglucosides (APG). Suitable APGs suitable for invention are commercially available and include for examples those materials identified as OramixNSlO (Seppic), Plantarenl200 and Plantaren ex Henkel, Plantacare series ex Cognis. Other sugar derived non-ionics that can be included in the composition of invention included the ClO-18 N-alkyI (C1-C6) polyhydroxy fattyacid amides, such as the C12-C18 N-methyl glucamides, N-hydroxypolyoxyfattyacidamides, such as C10-C18-IM-(3-methoxypropyl) glucamide.

According to another aspect of the present invention there is provided a process for
manufacturing said shampoo composition comprising the steps of

(i) adding at least one or more surfactants selected from anionic, amphoteric/ zwitterionic and non-ionic surfactants or the mixtures thereof along with the required quantity of amidoamine and fatty acid ester in deionized water followed by heating the mixture to a temperature in the range of 70-90 Deg C and mixing well until a homogenous solution is obtained;

(ii) dispersing the cationic depositing polymers followed by adding deionized water equal to or greater than about 10 times the quantity of cationic polymer and mixing under stirring conditions until the cationic polymer is dispersed;

(iii)adding the dispersed cationic depositing polymer solution obtained in step (ii) to the
composition obtained in step (i);

(iv)adding pre-emulsified silicone mixture to the solution obtained in step (iii) above and
mixing the resulting mixture thoroughly until a homogenous solution is obtained;

(v) optionally, adding other hair benefiting ingredients under stirring conditions with moderate agitation to prevent heavy aeration until the composition is uniform to obtain said shampoo composition therefrom.

DETAILED DESCRIPTION OF THE INVENTION

As discussed hereinbefore the present invention thus provides for an improved conditioning cosmetic composition such as shampoo composition with superior conditioning attributes involving a synergistic combination of a fatty acid ester and amidoamine which when present in selective levels in combination with pre-emulsified silicones and surfactants of a shampoo composition significantly enhances the conditioning performance of said pre-emulsified silicones such that the shampoo composition is adapted to deliver superior conditioning benefits to hair.

It is thus a surprising finding of the present invention that when pre-emulsified silicone in a surfactant based shampoo composition is present in synergistic combination with selective levels of fatty acid ester and an amidoamine, an unexpected and significant boost of the conditioning performance of said pre-emulsified silicones in the shampoo composition could be thus achieved.

Accordingly the invention provides for an improved conditioning shampoo composition with superior conditioning attributes comprising ingredients in addition to water (i) pre-emulsified silicones, (ii) atleast one fatty acid ester, (iii) atleast one amidoamine wherein the ratio of fatty acid ester to amidoamine is in the range of from 2:0.5 to 0.5:2; (iv) at least one cationic polymer, and (v) atleast one surfactant selected from anionic, nonionic, zwitterionic or amphoteric surfactants or mixtures thereof for enhancing the conditioning performance of said pre-emulsified silicones in said shampoo composition.

According to another preferred aspect of the present invention there is thus provided a shampoo composition wherein the fatty acid chain of the fatty acid ester involves at least 12 carbon atoms (C12) present in said selective levels in the shampoo composition.

According to a further aspect of the invention there is provided a process for manufacturing a shampoo composition comprising the steps of

(i) adding at least one or more surfactants selected from anionic, amphoteric/ zwitterionic and non-ionic surfactants or the mixtures thereof along with the required quantity of amidoamine and fatty acid ester in deionized water followed by heating the mixture to a temperature in the range of 70-90 Deg C and mixing well until a homogenous solution is obtained;

(ii) dispersing the cationic depositing polymers followed by adding deionized water equal to or greater than about 10 times the quantity of cationic polymer and mixing under stirring conditions until the cationic polymer is dispersed;

(iii)adding the dispersed cationic depositing polymer solution obtained in step (ii) to the composition obtained in step (i);

(iv)adding pre-emulsified silicone mixture to the solution obtained in step (iii) above and mixing the resulting mixture thoroughly until a homogenous solution is obtained; (v) optionally, adding other hair benefiting ingredients under stirring conditions with moderate agitation to prevent heavy aeration until the composition is uniform to obtain said shampoo composition therefrom.

The shampoo composition obtained as above is adapted to deliver superior conditioning benefits, compatibility, softness and shine to the hair by way of significantly boosting the conditioning performance of pre-emulsified silicones in a surfactant in the said composition.

The invention is illustrated hereunder in greater detail in relation to the following non-limiting exemplary illustrations as per the following examples:

Example 1: Control shampoo composition

Name of the ingredient Example 1 ( % weight)

Sodium laureth sulphate 12

EDTA 0,05

Cocomonoethanolamide 2

Cocoamidopropylbetaine 1,2

Alkylpolyglucoside 0.75

Silicone emulsion (1) 2

AquaSF-l(2) 0,75

JaquarC13s (3) 0,2

Kathon CG (4) OA

Sodium chloride 0,5

Fragrance 0,5

Colour 0.005

Deminerlaised water To 100

(1) Silicone emulsion included is pre-dispersed emulsion of dimethicone or dimethiconol or trimethysilylamodimethicone or mixtures, which are commercially supplied by DowCorning, l^omentive, Wacker etc.

(2) Aqua SF-1 is a cross linked acrylate copolymer from Lubrizol

(3) Jaguar C13S is Guar hydroxypropyltriammoniumchloride from Rhodia

(4) Kathon CG is a preservative available from Rohm & Haas

Example 2: Shampoo composition (comparative)

Name of the ingredient Example 2 ( % weight)

Sodium laureth sulphate 12

EDTA 0,05

Cocomonoethanolamide 2

Amidoamine (1) 0,5

Cocoamidopropylbetaine 1,2

Alkylpolyglucoside 0.75

Silicone emulsion (2) 2

AquaSF-l(4) 0,75

JaguarC13s (5) 0,2

Kathon CG (6) OA

Sodium chloride I 0.5

Fragrance _ CL5

Colour 0.005

Deminerlaised water To 100

l)Amidoamine included is Stearamidopropyldimethylamine from Croda Inc.

2)Silicone emulsion included is pre-dispersed emulsion of dimethicone or dimethiconol
or trimethysilyiamodimethicone or mixtures, which are commercially supplied by DowCorning, Momentive, Wacker etc

(3) Aqua SF-1 is a cross linked acrylate copolymer from Lubrizol

(4) Jaguar C13S is Guar hydroxypropyltriammoniumchloride from Rhodia

(5) Kathon CG is a preservative available from Rohm & Haas

Example 3: Shampoo composition (comparative)

Name of the ingredient Example 3 ( % weight)
Sodium laureth sulphate 12

EDTA q

Cocomonoethanolamide 2

Fattyacid ester(l) OA

Cocoamidopropylbetaine 12

Alkylpolyglucoside 0.75

Silicone emulsion (2) 2

AquaSF-l(4) 0,75

JaguarC13s(5) 0,2

Kathon CG (6) OJ

Sodium chloride 0,5

Fragrance 0,5

Colour 0.005

Deminerlaised water I To 100

(1) Fattyacid ester included is Myristylmyristate from Croda Inc. (2) Silicone Emulsion included is pre-dispersed emulsion of dimethicone or dimethiconol or
trimethysilyiamodimethicone or mixtures, which are commercially supplied by DowCorning, Momentive, Wacker etc.

(2) Aqua SF-1 is a cross linked acrylate copolymer from Lubrizol

(3) Jaguar C13S is Guar hydroxypropyitrlammoniumchloride from Rhodia

(4) Kathon CG is a preservative available from Rohm & Haas

Example 4: Shampoo Composition of the present invention under Examples 4A and 4B, 4C; comparative shampoo compositions under Examples 4D and 4E; and control shampoo composition under Example 1

Name of the I Example Example I Example Example Example Example 1
ingredient 4A 4B 4C 4D 4E (control (%wt) (%wt) (%wt) (%wt) (%wt) composition above,

(1) Amidoamine included is Stearamidopropyidimethylamine from Croda Inc.

(2) Fattyacid ester (1) included is Myristylmyristate from Croda Inc.

(3) Fatty acid ester (2) included is Isopropyl palmitate from Croda Inc.

(4) Silicone emulsion included is pre-dispersed emulsion of dimethicone or dimethiconol or trimethysilylamodimethicone or mixtures, which are commercially supplied by DowCorning, Momentive, Wacker etc

(5) Aqua SF-1 is a cross linked acrylate copolymer from Lubrizol

(6) Jaguar C13S is Guar hydroxypropyltriammoniumchloride from Rhodia

(7) Kathon CG is a preservative available from Rohm & Haas Performance evaluation of Formulations under Example 2 and Example 3 against Example 1 illustrated above:

Performance and comparisons of the composition of the present invention illustrated in Example 2 and Example 3 against composition of example 1 which is Control shampoo composition was done using paired comparison salon tests for foam, cleansing, softness of washed hair while wet, softness of hair after drying, ease of combing of dried hair and making hair manageable. The evaluations were performed by a trained, licensed cosmetologist.

Following use of the compositions, the consumers were asked to assess their hair for the above said attributes. The findings are illustrated hereunder:

Composition illustrated in Example 2 and Example 3 and Example 1 were assessed by a panel of volunteers in salon by half head method which is known to the person skilled in the art. Following use, the consumers were asked to assess on their own hair on foam, cleansing, softness of washed hair while wet. Softness of hair after drying, ease of combing of dried hair and making hair manageable. Composition illustrated in Example 2 and Example 3, were rated parity softness of washed hair while wet, softness of hair after drying, ease of detangling and combing of dried hair and making hair manageable and shine compared to the composition described in Example 1.

Performance evaluation of Formulations under Example 1 and Examples 4A, 4B, 4C, 4D above:

Performance and comparisons of the composition of the present invention illustrated in Example 4A and 4B against composition of example 1 which is Control shampoo composition was done using paired comparison salon tests for foam, cleansing, softness of washed hair while wet, softness of hair after drying, ease of combing of dried hair and making hair manageable. The evaluations were performed by a trained, licensed cosmetologist.

Following use of the compositions, the consumers were asked to assess their hair for the above said attributes. The findings are illustrated hereunder:

Composition of the present invention illustrated in Example 4A, 4B, 4C and 4D and Example 1 were assessed by a panel of volunteers in salon by half head method which is known to the person skilled in the art. Following use, the consumers were asked to assess on their own hair on foam, cleansing, softness of washed hair while wet. Softness of hair after drying, ease of combing of dried hair and making hair manageable. Composition of the present invention-illustrated in Examples 4A, 4B, 4C was preferred on softness of washed hair while wet, softness of hair after drying, ease of detangling and combing of dried hair and making hair manageable and shine compared to the composition described in Example 1. Composition of the present invention-illustrated in Examples 4D where in the weight ratio of fattyacid ester and amidoamine is beyond the specified ratio is rated parity on softness of washed hair while wet, softness of hair after drying, ease of detangling and combing of dried hair and making hair manageable and shine compared to the composition described in Example 1.

Though there is a clear involvement of both fatty acid ester and amidoamine in the composition described under Example 4D, the same could not provide for the desired end conditioning effect like Example 4A, 4B &4C composition as assessed by a panel of volunteers as the fatty acid ester and the amidoamine were present beyond the selective levels in the said composition thereby failing to synergize with pre-emulsified silicones and other actives in the surfactant based shampoo composition to provide for the desired enhancement of the conditioning performance of pre-emulsified silicones therein. The abovesaid thus further goes to establish the importance of the selective levels of fatty acid ester and the amidoamine in said shampoo composition which when not maintained at the desired levels fails to impart the desired conditioning benefits.

Hence, it is evident from the above compositions illustrated under control example 1 including only the silicone and the compositions as per examples 2, and 3 whose performance were at par with the control example 1. However, the synergistic combination of the amidoamine and the fatty acid ester with the silicone emulsion in the composition under Examples 4A, 4B and 4C at the desired levels unexpectedly boosted the conditioning performance especially the softness of the pre-emulsified silicone in surfactants present in the shampoo composition of Example 4A, 4B and 4C significantly thereby delivering superior conditioning benefits.

Performance evaluation of Formulations under Example 1; Examples 4A, 4B and 4C and Example 4E:

Performance and comparisons of the composition of the present Invention illustrated in Example 4E against composition of example 1 which is Control shampoo composition was done using paired comparison salon tests for foam, cleansing, softness of washed hair while wet, softness of hair after drying, ease of combing of dried hair and making hair manageable. The evaluations were performed by a trained, licensed cosmetologist.

Following use of the compositions, the consumers were asked to assess their hair for the above said attributes. The findings are illustrated hereunder:

Composition of the present invention illustrated in Example 4E and Example 1 were assessed by a panel of volunteers in salon by half head method which is known to the person skilled in the art. Following use, the consumers were asked to assess on their own hair on foam, cleansing, softness of washed hair while wet. Softness of hair after drying, ease of combing of dried hair and making hair manageable. Shampoo composition illustrated in Example 4E was found to be preferable with respect to Example 1 composition as regards the softness of washed hair while wet, softness of hair after drying, ease of detangling and combing of dried hair and making hair manageable and shine being obtained of the select levels of fatty acid esters and amidoamine combination, but the performance of Example 4E composition was not at par with the performance of compositions of Examples 4A, 4B and 4C. This difference in performance was mainly because the composition illustrated in Example 4E involved fattyacid chain length in the fattyacid ester of less than C12 as compared to Examples 4A, 4B and 4C with the fatty acid chain length of at least C12, the most preferred fatty acid chain length for the purposes of the present advancement.

Hence, it would be clear from the above that though there is a clear involvement of both fatty acid ester and amidoamine in the composition described under Example 4E in selective levels, the conditioning effect of 4E was not at par with the conditioning effect of the compositions of Examples 4A, 4B & 4C as assessed by a panel of volunteers because the fatty acid chain length in the fatty acid ester in being less than C12 could not provide for the maximum synergistic benefit as obtained for the compositions 4A, 4B & 4C to effectively synergize with pre-emulsified silicones and other actives in the surfactant based shampoo composition to provide for the desired enhancement of the conditioning performance of pre-emulsified silicones therein. The abovesaid thus further goes to establish that in addition to the selective levels of the fatty acid ester to amidoamine to be present in combination with the pre-emulsified silicones in a surfactant based shampoo composition to provide for the most preferred (maximum synergy) conditioning effect, there lies an additional importance on the selective chain length of the fatty acid of the fatty acid ester in said shampoo composition which when goes below 12C does not provide for the maximum synergistic benefit like that achieved for compositions of Examples 4A, 4B & 4C as discussed above and involving the fatty acid ester with carbon chain at least C12.

It is thus possible by way of the made in the present invention to provide for a cosmetic composition such as a shampoo composition with superior conditioning attributes involving a synergistic combination of a fatty acid ester and amidoamine which when present in selective levels in combination with pre-emulsified silicones and surfactants of a shampoo composition significantly and surprisingly boosts the conditioning performance of said pre-emulsified silicones in a mix of surfactants such that the shampoo composition is adapted to deliver superior conditioning benefits, combability, softness and shine to the hair. Additionally, it was also found that maximum condition benefits could be achieved by the compositions of the present invention when the chain length of the fatty acid of said fatty acid ester is atleast C12 as illustrated above.

We Claim:

1. A shampoo composition with superior conditioning attributes comprising ingredients in addition to water

(i) pre-emulsified silicones, (ii) atleast one fatty acid ester, (iii) atleast one amidoamine wherein the ratio of fatty acid ester to amidoamine is in the range of from 2:0.5 to 0.5:2; (iv) at least one cationic polymer, and (v) atleast one surfactant selected from anionic, nonionic, zwitterionic or amphoteric surfactants or mixtures thereof.

2. A shampoo composition as claimed in claim 1 wherein the fatty acid chain of said fatty acid ester comprises at least 12 carbon atoms (C12) and are selected from myrsityl myristate, myristylpalmitate, lauryl laurate or mixtures thereof.

3. A shampoo composition as claimed in anyone of claim 1 or 2 wherein said amidoamine are selected from behenamidoethyldimethylamine, behenamidoethyl diethylamine, behenamidoethyldimethylamine, arachidamidopropyldimethylamine, Arachidamidoethyldiethylamine, stearamidopropyldimethylamine or mixtures thereof.

4. A shampoo composition as claimed in anyone of the preceding claims wherein the pre-emulsified silicones is pre-dispersed emulsion of silicones present in the range of 0.5% to 3% and are selected from dimethicone or dimethiconol or trimethysilylamodimethicone or mixtures thereof.

5. A shampoo composition as claimed in anyone of the preceding claims wherein said cationic polymers are present in the range of 0.01% to 0.5% and are selected from cationic acrylamide copolymers selected from the copolymers of vinylmonomers having cationic amine or quaternary ammonium functionalities with water soluble spacer monomers such as (meth) acylamide, alkyl and dialkyl(meth)acrylamides, AikyI (meth) acrylate, vinyl caprolactone and vinyl pyrrolidone, wherein said alkyl and dialkyi substituted monomers preferably have C1-C7 alkyl groups, more preferably Cl-3 alkyl groups, wherein suitable spacers include vinyl esters, vinyl alcohol, maleic anhydride, propylene glycol and ethylene glycol, Polyquaternium-10, Polyquaternium-7, Polyquaternium-6, Polyquaternium-16, Polyquaternium-11 and terpolymers of acrylic acid with dimethyldiallylammonium chloride and acrylamide, and terpolymers of acrylic acid with methacrylamidopropyl trimethylammonium chloride and methyl actylate; also selected from a class of cationic polymers formed from methacrylamidopropyl trimonlum chloride and/or acrylamidopropyl trimonlum chloride and copolymers of these monomers with acrylamide; also selected from the class of Hydrophobically modified hydroxyethyl cellulose and are also preferably selected from a class of cationic polysaccharide including cationic guar gum derivative, especially guar hydroxypropyitrimethyiammonium chloride.

6. A shampoo composition as claimed in anyone of the preceding claims wherein said atleast one surfactant selected from anionic, nonionic, zwitterionic or amphoteric surfactants or mixtures thereof includes alkyl sulphates, alkylether sulphates, alkaryl sulphonates, alkanoyl isethionates, alkyl succinates, alkyl suifosuccinates, N-alkyI sarcosinates, alkyl phosphates, alkyl ether phosphates, alkyl ether carboxylates, Alpha-olefin sulfonates, alkylamine oxides, alkyl betains, alkyl amidopropyl betains, alkyl sulpho beatins, (sultaines), alkyl glycinates, alkylcarboxy glycinates, alkylamidopropylglycinates, alkylamidopropylhydroxy sultaines, acyl taurates, and acyl glutamates, alkylpolyglucosides (APG), aliphatic (C8-C18) primary or secondary linear or branched chain alcohols or phenols with alkylene oxides, mono-or di-alkyi alkanolamides.

7. A process for manufacturing the shampoo composition as claimed in claims 1-6 comprising the steps of

(i) adding at least one or more surfactants selected from anionic, amphoteric/ zwitterionic and non-ionic surfactants or the mixtures thereof along with the required quantity of amidoamine and fatty acid ester in deionized water followed by heating the mixture to a temperature in the range of 70-90 Deg C and mixing well until a homogenous solution is obtained;

(ii) dispersing the cationic depositing polymers followed by adding deionized water equal to or greater than about 10 times the quantity of cationic polymer and mixing under stirring conditions until the cationic polymer is dispersed;

(iii)adding the dispersed cationic depositing polymer solution obtained in step (ii) to the
composition obtained in step (i);

(iv)adding pre-emulsified silicone mixture to the solution obtained in step (ill) above and
mixing the resulting mixture thoroughly until a homogenous solution is obtained;

(v) optionally, adding other hair benefiting ingredients under stirring conditions with moderate agitation to prevent heavy aeration until the composition is uniform to obtain said shampoo composition therefrom.

8. A shampoo composition obtained thereof and a process for preparing the same as herein described and illustrated in relation to the accompanying examples.