Structured surfactant compositions

• US 20080233061A1
• Filed: 03/21/2008
• Published: 09/25/2008
• Est. Priority Date: 03/23/2007
• Status: Active Grant

• Current Assignee: Specialty Operations France
• Original Assignee: Rhodia Operations (Solvac SA)
• Inventors: Hough, Larry, Futterer, Tobias, Gates, Ericka
• Granted Patent: US 8,828,364 B2
• Time in Patent Office: Days
• US Class Current: 424/59
• CPC Class Codes: A01N 25/30 characterised by the surfactants
• CPC Class Codes: A61K 2800/596 Mixtures of surface active compounds
• CPC Class Codes: A61K 8/0295 Liquid crystals
• CPC Class Codes: A61K 8/19 containing inorganic ingredients
• CPC Class Codes: A61K 8/20 Halogens; Compounds thereof
• CPC Class Codes: A61K 8/42 Amides
• CPC Class Codes: A61K 8/442 substituted by amido group(s)
• CPC Class Codes: A61K 8/45 Derivatives containing from 2 to 10 oxyalkylene groups
• CPC Class Codes: A61K 8/466 containing sulfonic acid derivatives; Salts
• CPC Class Codes: A61Q 19/10 Washing or bathing preparations
• CPC Class Codes: A61Q 5/02 Preparations for cleaning the hair
• CPC Class Codes: C08K 5/20 Carboxylic acid amides
• CPC Class Codes: C08K 5/41 Compounds containing sulfur bound to oxygen
• CPC Class Codes: C11D 1/146 Sulfuric acid esters
• CPC Class Codes: C11D 1/29 Sulfates of polyoxyalkylene ethers
• CPC Class Codes: C11D 1/523 Carboxylic alkylolamides, or dialkylolamides, or hydroxycarboxylic amides (R1-CO-NR2R3), where R1, R2 or R3 contain one hydroxy group per alkyl group
• CPC Class Codes: C11D 1/528 Carboxylic amides (R1-CO-NR2R3), where at least one of the chains R1, R2 or R3 is interrupted by a functional group, e.g. a -NH-, -NR-, -CO-, or -CON- group ethers C11D1/526
• CPC Class Codes: C11D 1/652 Mixtures of anionic compounds with carboxylic amides or alkylol amides
• CPC Class Codes: C11D 1/88 Ampholytes; Electroneutral compounds C11D1/002, C11D1/004, C11D1/008 take precedence
• CPC Class Codes: C11D 1/94 Mixtures with anionic, cationic or non-ionic compounds
• CPC Class Codes: C11D 17/0026 : Structured liquid compositions, e.g. liquid crystalline phases or network containing non-Newtonian phase
• CPC Class Codes: C11D 3/046 : Salts

Abstract

A structured surfactant composition, comprising, based on 100 parts by weight of said composition,

• (i) from greater than 0 to about 15 parts by weight of an alkyl ether sulfate surfactant,
• (ii) from greater than 0 to about 15 parts by weight of an alkyl sulfate surfactant,
• (iii) from greater than 0 to about 8 parts by weight of an alkanolamide surfactant,
• (iv) from 0 to about 10 parts by weight of an amphoteric surfactant, provided that the total amount of components (i), (ii), (iii), and (iv) is greater than or equal to 5 parts by weight,
• (v) an amount of electrolyte effective to, in combination with components (i), (ii), (ii), and (iv), provide a structured surfactant composition having an opaque visual appearance and exhibiting a yield strength of greater than 0 Pascals, and
• (vi) water.

Claims

1. A structured surfactant composition, comprising, based on 100 parts by weight of said composition,

(i) from greater than 0 to about 15 pbw of an alkyl ether sulfate surfactant,

(ii) from greater than 0 to about 15 pbw of an alkyl sulfate surfactant,

(iii) from greater than 0 to about 8 pbw of an alkanolamide surfactant,

(iv) from 0 to about 10 pbw of an amphoteric surfactant,

provided that the total amount of components (i), (ii), (iii), and (iv) is greater than or equal to 5 pbw,

(v) an amount of electrolyte effective to, in combination with components (i), (ii), (ii), and (iv), provide a structured surfactant composition having an opaque visual appearance and exhibiting a yield strength of greater than 0 Pascals, and

(vi) water.

2. The composition of claim 1, wherein the composition comprises from about 0.5 to about 10 parts by weight of the alkyl ether sulfate surfactant.

3. The composition of claim 1, wherein the alkyl ether sulfate surfactant comprises one or more compounds according to structure (I):

R¹—

O—

(C_mH_2mO)_n—

So₃⁻

X⁺ 

 

(I)

wherein

R¹ is (C₈-C₁₈)alkyl or (C₈-C₁₈)alkenyl,

m is 2, 3, or 4,

n is an integer of from 1 to about 7, and

X⁺ is a cation.

4. The composition of claim 1, wherein the composition comprises from about 1.5 to about 12 parts by weight of the alkyl sulfate surfactant.

5. The composition of claim 1, wherein alkyl sulfate surfactant comprises one or more compounds according to structure (II):

R²—

O—

SO₃⁻

_X+ 

 

(II)

wherein;

R² is (C₈-C₁₈)alkyl or (C₈-C₁₈)alkenyl, and

X⁺ is a cation.

6. The composition of claim 1, wherein the composition comprises, from about 0.5 to about 6 parts by weight of the alkanolamide.

7. The composition of claim 1, wherein the alkanolamide comprises one or more compounds according to structure (III):

8. The composition of claim 1, wherein composition comprises from about 0.1 to about 15 parts by weight of an electrolyte.

9. The composition of claim 1, wherein electrolytes comprises one or more of organic salts and inorganic salts.

10. The composition of claim 1, wherein the electrolyte comprises NH₄Cl.

11. The composition of claim 1, wherein composition comprises from about 1 to about 8 parts by weight of an amphoteric surfactant.

12. The composition of claim 11, wherein the amphoteric surfactant comprises one or more compounds selected from compounds according to structures (IV) and (V):

13. A structured surfactant composition, comprising, based on 100 parts by weight of said composition:

(i) from about 0.5 to about 10 parts by weight of an alkyl ether sulfate surfactant comprising one or more compounds according to structure (I);

R¹—

O—

(C_mH_2mO)_n—

So₃⁻

X⁺ 

 

(I)

wherein

R¹ is (C₈-C₁₈)alkyl,

m is 2 or 3,

n is an integer of from 1 to about 5 and

X⁺ is a cation,

(ii) from about 1.5 to about 12 parts by weight of an alkyl sulfate surfactant comprising one or more compounds according to structure (II);

R²—

O—

SO₃⁻

_X+ 

 

(II)

wherein;

R² is (C₈-C₁₈)alkyl, and

X⁺ is a cation,

(iii) from about 0.5 to about 6 parts by weight of an alkanolamide surfactant comprising one or more compounds according to structure (III);

14. The composition of claim 13, wherein the composition is a personal care composition.

15. The composition of claim 13, wherein the composition further comprises a personal care benefit agent.

16. The composition of claim 15, wherein the benefit agent comprises one or more of oils, emollients, moisturizers, humectants, conditioners, polymers, vitamins, abrasives, UV absorbers, antimicrobial agents, anti-dandruff agents, fragrances, and appearance modifying additives.

17. The composition of claim 16, wherein the benefit agent comprises a humectant.

18. The composition of claim 17, wherein the composition further comprises one or more polymeric thickeners.

19. The composition of claim 17, wherein the composition further comprises one or more oils.

20. A composition, comprising, in each case based on 100 parts by weight of the composition:

(a) from about 50 to about 99 parts by weight of an aqueous structured surfactant phase, said structured surfactant phase comprising;

(i) from greater than 0 to about 15 parts by weight of an alkyl ether sulfate surfactant,

(ii) from greater than 0 to about 15 parts by weight of an alkyl sulfate surfactant,

(iii) from greater than 0 to about 8 parts by weight of an alkanolamide surfactant,

(iv) from 0 to about 10 parts by weight of an amphoteric surfactant,

provided that the total amount of components (i), (ii), (iii), and (iv) is greater than or equal to 5 parts by weight

(v) an amount of electrolyte effective to, in combination with components (i), (ii), (ii), and (iv), provide a structured surfactant composition having an opaque visual appearance and exhibiting a yield strength of greater than 0 Pascals, and

(vi) water, and

(b) from about 1 to about 50 parts by weight of a discontinuous water insoluble or partially water soluble phase dispersed in the aqueous structured surfactant phase.

21. The composition of claim 20, wherein the water insoluble or partially water soluble phase comprises an oil.

22. The composition of claim 21, wherein water insoluble or partially water soluble phase comprises one or more of vegetable oils, mineral oils, and silicone oils.

23. The composition of claim 22, wherein water insoluble or partially water soluble phase comprises one or more vegetable oils selected from arachis oil, castor oil, cocoa butter, coconut oil, corn oil, cotton seed oil, olive oil, palm kernel oil, rapeseed oil, sunflower oil, safflower seed oil, sesame seed oil, and soybean oil, shea butter, avocado oil, rice bran oil, jojoba oil, grape seed oil, sweet almond oil, canola oil, apricot oil, walnut oil, and wheat germ oil.

24. The composition of claim 22, wherein water insoluble or partially water soluble phase comprises petrolatum.