Structured soap compositions

• US 20090048139A1
• Filed: 08/15/2008
• Published: 02/19/2009
• Est. Priority Date: 08/17/2007
• Status: Active Grant

• Current Assignee: Rhodia Asia Pacific Pte., Ltd. (Syensqo SA)
• Original Assignee: Rhodia Asia Pacific Pte., Ltd. (Syensqo SA)
• Inventors: Chen, Xi, Seow, Swee-How, Futterer, Tobias
• Granted Patent: US 9,090,861 B2
• Time in Patent Office: Days
• US Class Current: 510/416
• CPC Class Codes: C11D 1/52 Carboxylic amides, alkylolamides or imides or their condensation products with alkylene oxides
• CPC Class Codes: C11D 1/667 Neutral esters, e.g. sorbitan esters
• CPC Class Codes: C11D 1/72 Ethers of polyoxyalkylene glycols
• CPC Class Codes: C11D 10/04 based on mixtures of surface-active non-soap compounds and soap
• CPC Class Codes: C11D 10/045 based on non-ionic surface-active compounds and soap
• CPC Class Codes: C11D 10/047 based on cationic surface-active compounds and soap
• CPC Class Codes: C11D 17/0026 Structured liquid compositions, e.g. liquid crystalline phases or network containing non-Newtonian phase
• CPC Class Codes: C11D 9/26 containing oxygen C11D9/225 takes precedence
• CPC Class Codes: C11D 9/267 containing free fatty acids

Abstract

A structured soap composition contains, based on 100 parts by weight of said composition,

• (i) from greater than 0 to about 27 parts by weight of a neutralized fatty acid,
• (ii) from greater than 0 to about 18 parts by weight of one or more structurant selected from alkanolamide surfactants, fatty alcohols, alkoxylated fatty alcohols, fatty acids, and fatty acid esters,
• (iii) from 0 to about 15 parts by weight of one or more compounds selected from amphoteric surfactants and zwitterionic surfactants,
  provided that the total amount of components (i), (ii), and (iii) is greater than or equal to 5 parts by weight,
• (iv) an amount of electrolyte effective to, in combination with components (i), (ii), and (iii) provide a structured soap composition having an opaque visual appearance and exhibiting a yield strength of greater than 0 Pascals, and
• (v) water.

Claims

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

(i) from greater than 0 to about 27 parts by weight of a neutralized fatty acid,

(ii) from greater than 0 to about 18 parts by weight of one or more structurant selected from alkanolamide surfactants, fatty alcohols, alkoxylated fatty alcohols, fatty acids, and fatty acid esters,

(iii) from 0 to about 15 parts by weight of one or more compounds selected from amphoteric surfactants and zwitterionic surfactants,

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

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

(v) water.

2. The composition of claim 1, wherein the composition comprises, based on 100 parts by weight of the composition, from about 2 to about 15 parts by weight of the neutralized fatty acid

3. The composition of claim 1, wherein the composition comprises, based on 100 parts by weight of the composition from about 4 to about 12 parts by weight of the neutralized fatty acid

4. The composition of claim 1, wherein the neutralized fatty acid component of the structured soap composition of the present invention comprises one or more compounds selected from:

(a) compounds according to structure (I) and compounds according to structure (II);

wherein;

R¹ is (C₆-C₃₀)alkyl or (C₆-C₃₀)alkenyl,

R² is (C₆-C₃₀)alkylene or (C₆-C₃₀)alkenylene, and

X⁺ is, in each case, a cation, and

(b) neutralized fatty acid oligomers.

5. The composition of claim 1, wherein the composition comprises, based on 100 parts by weight of the composition, from about 2 to about 18 parts by weight of the structurant.

6. The composition of claim 1, wherein the composition comprises, based on 100 parts by weight of the composition, from about 4 to about 10 parts by weight of the structurant.

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

wherein;

R³ is (C₅-C₂₄) saturated or unsaturated, straight chain or branched aliphatic group,

R⁴ and R⁵ are the same or different, C₂-C₄ straight chain or branched aliphatic groups,

x is an integer from 0 to 10, y is an integer from 1 to 10, and the sum of x and y is less than or equal to 10.

8. The composition of claim 1, wherein the composition comprises, based on 100 parts by weight of the structured soap composition, up to about 20 parts by weight of the electrolyte.

9. The composition of claim 1, wherein the composition comprises, based on 100 parts by weight of the structured soap composition from about 1 to about 12 parts by weight of the electrolyte.

10. The composition of claim 1, further comprising a zwitterionic surfactant, an amphoteric surfactant, or mixture thereof.

11. A structured soap composition, comprising, based on 100 parts by weight of said composition,

(i) from about 4 to about 12 parts by weight of a neutralized fatty acid comprising one or more compounds selected from compounds according to structure (I) and compounds according to structure (II):

wherein;

R¹ is (C₆-C₃₀)alkyl or (C₆-C₃₀)alkenyl,

R² is (C₆-C₃₀)alkylene or (C₆-C₃₀)alkenylene, and

X⁺ is, in each case, a cation,

(ii) from about 4 to about 10 parts by weight of one or more structurant selected from alkanolamide compounds according to structure (III);

wherein;

R³ is (C₅-C₂₄) saturated or unsaturated, straight chain or branched aliphatic group,

R⁴ and R⁵ are the same or different, C₂-C₄ straight chain or branched aliphatic groups,

x is an integer from 0 to 10, y is an integer from 1 to 10, and the sum of x and y is less than or equal to 10,

(iii) from 0 to about 15 parts by weight of one or more compounds selected from amphoteric surfactants and zwitterionic surfactants,

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

(iv) an amount, from about 1 to about 12 parts by weight, of electrolyte effective to, in combination with components (i), (ii), and (iii) provide a structured soap composition having an opaque visual appearance and exhibiting a yield strength of greater than 0 Pascals, and

(v) water.

12. The composition of claim 11, further comprising a zwitterionic surfactant, an amphoteric surfactant, or mixture thereof.

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

(a) from about 10 to less than 100 parts by weight of an aqueous structured soap phase, said structured soap phase comprising;

(i) from greater than 0 to about 27 parts by weight of a neutralized fatty acid,

(ii) from greater than 0 to about 18 parts by weight of one or more structurant selected from alkanolamide surfactants, fatty alcohols, alkoxylated fatty alcohols, fatty acids, and fatty acid esters,

(iii) from 0 to about 15 parts by weight of an amphoteric surfactant,

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

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

(v) water, and

(b) from greater than 0 to about 75 parts by weight of a discontinuous water insoluble or partially water soluble phase dispersed in the aqueous structured soap phase.

14. The composition of claim 13, wherein the water insoluble or partially water soluble phase comprises one or more benefit agents selected from emollients, moisturizers, conditioners, polymers, vitamins, abrasives, UV absorbers, antimicrobial agents, anti-dandruff agents, fragrances, and water insoluble or partially water soluble appearance modifying additives.

15. The composition of claim 13, wherein the water insoluble or partially water soluble phase comprises an oil.

16. The composition of claim 13, wherein the oil comprises one or more compounds 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, soybean oil, shea butter, avocado oil, rice bran oil, jojoba oil, grape seed oil, sweet almond oil, canola oil, apricot oil, walnut oil, wheat germ oil, mineral oils, and silicone oils.

17. A structured soap composition, comprising, based on 100 parts by weight of said composition,

(a) from about 10 to less than 100 parts by weight of an aqueous structured soap phase, said structured soap phase comprising:

(i) from about 4 to about 12 parts by weight of a neutralized fatty acid comprising one or more compounds selected from compounds according to structure (I) and compounds according to structure (II);

wherein;

R¹ is (C₆-C₃₀)alkyl or (C₆-C₃₀)alkenyl,

R² is (C₆-C₃₀)alkylene or (C₆-C₃₀)alkenylene, and

X⁺ is, in each case, a cation,

(ii) from about 4 to about 10 parts by weight of one or more structurant selected from alkanolamide compounds according to structure (III);

wherein;

R³ is (C₅-C₂₄) saturated or unsaturated, straight chain or branched aliphatic group,

R⁴ and R⁵ are the same or different, C₂-C₄ straight chain or branched aliphatic groups,

x is an integer from 0 to 10, y is an integer from 1 to 10, and the sum of x and y is less than or equal to 10,

(iii) from 0 to about 15 parts by weight of one or more compounds selected from amphoteric surfactants and zwitterionic surfactants,

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

(iv) an amount, from about 1 to about 12 parts by weight, of electrolyte effective to, in combination with components (i), (ii), and (iii) provide a structured soap composition having an opaque visual appearance and exhibiting a yield strength of greater than 0 Pascals, and

(v) water, and

(b) from 5 to about 30 parts by weight of a discontinuous water insoluble or partially water soluble phase dispersed in the aqueous structured soap phase comprising one or more one or more 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, soybean oil, shea butter, avocado oil, rice bran oil, jojoba oil, grape seed oil, sweet almond oil, canola oil, apricot oil, walnut oil, wheat germ oil, mineral oils, and silicone oils.

18. The composition of claim 17, further comprising a zwitterionic surfactant, an amphoteric surfactant, or mixture thereof.