Search

WO-2026093325-A1 - PERSONAL CARE COMPOSITION

WO2026093325A1WO 2026093325 A1WO2026093325 A1WO 2026093325A1WO-2026093325-A1

Abstract

The present invention relates to personal care composition comprising: - at least one amphoteric surfactant, - at least one cationic conditioning polymer and - optionally, at least one anionic surfactant, provided that when said at least one anionic surfactant is present, the weight ratio of said at least one amphoteric surfactant to said at least one anionic surfactant is greater or equal to 1:1, wherein said composition comprises less than 3% by weight of salts, with respect to the total weight of the composition, and less than 20% by weight of said salts, with respect to the total weight of said at least one amphoteric surfactant.

Inventors

  • CAZETTE, Jennifer, Jessika
  • BON, Margot

Assignees

  • SPECIALTY OPERATIONS FRANCE

Dates

Publication Date
20260507
Application Date
20251028
Priority Date
20241031

Claims (12)

  1. 1. A personal care composition comprising: - at least one amphoteric surfactant, - at least one cationic conditioning polymer, - optionally, at least one anionic surfactant, provided that when said at least one anionic surfactant is present, the weight ratio of said at least one amphoteric surfactant to said at least one anionic surfactant is greater or equal to 1 : 1 , wherein said composition comprises less than 3% by weight of salts, with respect to the total weight of the composition, and less than 20% by weight of said salts, with respect to the total weight of said at least one amphoteric surfactant.
  2. 2. The personal care composition according to claim 1 , wherein the amphoteric surfactant is chosen from the group consisting of betaine surfactants, alkyl amphoacetate surfactants, alkyl amphodiacetate surfactants sultaines surfactants and mixtures thereof, preferably from alkyl dimethyl betaines, lauramidopropyl betaine, cocoamidopropyl betaine, and any combinations thereof, more preferably chosen from alkyl dimethyl betaines, even more preferably is coco betaine.
  3. 3. The personal care composition according to claim 1 or 2, comprising at least one anionic surfactant chosen from the group consisting of sodium, ammonium or potassium salts of isethionates; sodium, ammonium or potassium salts of sulfonates; sodium, ammonium or potassium salts of ether sulfonates; sodium, ammonium or potassium salts of sulfosuccinates; sodium, ammonium or potassium salts of sulfoacetates; sodium, ammonium or potassium salts of glycinates; sodium, ammonium or potassium salts of sarcosinates; sodium, ammonium or potassium salts of glutamates; sodium, ammonium or potassium salts of alaninates; sodium, ammonium or potassium salts of carboxylates; sodium, sodium, ammonium or potassium salts of taurates; sodium, ammonium or potassium salts of phosphate esters; and combinations thereof, preferably from sodium salts of taurates, more preferably from sodium methyl cocoyl taurate, sodium methyl oleyl taurate and combinations thereof.
  4. 4. The personal care composition according to any of the preceding claims, wherein the cationic conditioning polymer is chosen from cationic guar polymers, cationic non-guar galactomannan, synthetic cationic polymers, cationic cellulose polymers and combinations thereof, preferably is chosen from the group consisting of: guar hydroxypropyl trimonium chloride, hydroxypropyl guar hydroxypropyl trimonium chloride, polymethacrylamido-propyltrimonium halides, salts of hydroxyethyl cellulose reacted with trimethyl ammonium substituted epoxide, and combinations thereof.
  5. 5. The personal care composition according to any of the preceding claims, wherein weight ratio of said at least one amphoteric surfactant to said at least one anionic surfactant ranges from 1 :1 to 10:1 , preferably from 1 :1 to 5:1.
  6. 6. The personal care composition according to any of the preceding claims, comprising less than or equal to 2% by weight of salts, with respect to the total weight of the composition.
  7. 7. The personal care composition according to any of the preceding claims, wherein said salts are chosen from the group consisting of: ammonium and/or alkali and/or alkaline-earth halides, ammonium and/or alkali and/or alkaline-earth sulfates, ammonium and/or alkali and/or alkaline-earth sulfonates, ammonium and/or alkali and/or alkaline-earth phosphates, ammonium and/or alkali and/or alkaline-earth phosphonates, and any combinations thereof.
  8. 8. The personal care composition according to any of the preceding claims, comprising less than or equal to 20% by weight of surfactants, with respect to the total weight of the composition, preferably less than 15% by weight.
  9. 9. The personal care composition according to any of the preceding claims, having a pH value inferior or equal to 6.5, preferably ranging from 4.5 to 6.5.
  10. 10. The personal care composition according to any of the preceding claims, wherein the composition is a hair care composition, preferably a shampoo composition or a foaming composition for styling.
  11. 11. Use of a personal care composition according to any of the preceding claims for improving hair manageability.
  12. 12. Use according to claim 11 , for improving at least one of the following aspects of hair, preferably of curly and/or textured hair: - hair styling, notably curly and/or textured hair styling, - hair definition, notably curly and/or textured hair definition, - curl retention of hair, - frizz and fly-away control, - hair shine, and - hair volume control.

Description

PERSONAL CARE COMPOSITION FIELD OF THE INVENTION The present invention belongs to the technical field of personal care compositions, notably of hair care compositions. In particular, the invention relates to a personal care composition for improving hair manageability. The invention is particularly adapted for curly or textured hair, notably for improving hair styling, curl definition and curl retention. BACKGROUND OF THE INVENTION Many people are dissatisfied with the appearance of their hair, and desire to treat their hair to improve the appearance and/or feel thereof. Consumers primarily use hair care products formulated for their hair texture and style and expect to achieve their desired result. For instance, curly hair consumers may have concerns that the curls are not sufficiently defined. People having curly hair may desire to maintain the curls and may also desire to gain better curl definition and/or regularity, and to improve curl retention. Further, curly hair consumers willing to straighten their hair are usually concerned about the durability of their "styling" over humidity and over time, because of the tendency of curly hair to frizz. Increasingly, consumers also seek hair products that have a natural look and feel, while imparting good styling benefits to hair. Consumers also seek products that offer multiple benefits, for example, combining frizz reduction and style hold with softening (i.e. not “crunchy” feeling), elongation or lengthening effects while still providing good curl definition. As such, there is a need for new and improved products and methods for treating keratin fibers, in particular human keratin fibers such as curly or wavy hair, which may make it possible to deliver visible and/or lasting curl definition, and/or maintain curls while obtaining good curl definition and/or regularity, particularly under humid conditions, and at the same time impart one or more various additional properties to the hair such as better movement, good volume, frizz control, softness, smoothness, and/or natural shape, and which may be long- lasting, non-irritating, and/or non-toxic. The present disclosure addresses these concerns by providing personal care compositions, notably hair care compositions, specifically adapted to curly and/or textured hair and that deliver benefits such as improved curl definition and/or curl regularity, and additional caring and conditioning benefits, such as smoothness, frizz and fly-away control, volume control, shine and discipline. As residual by-products obtained during the synthesis of surfactants or intentionally added, salts (such as NaCI) are usually present in personal care compositions because of their ability to build viscosity. However, too much salt causes clarity & stability issues. This is especially evident when the formula incorporates cationic polymers to provide conditioning benefits, naturally-derived thickening polymers with limited salt tolerance or surfactants such as Sodium Cocoyl Isethionate, that can phase out in the presence of too much sodium chloride. To solve this problem, Ultra-Low Salt (ULS) grade surfactants have been developed. In particular, ULS grade are known to be used in sulfate-free formulations to improve clarity, viscosity and stability. In this respect, US 11 ,607,373 describes personal cleansing compositions comprising a cationic deposition polymer and a surfactant system, while having a level of salts inferior or equal to 1 wt%. Limiting the level of salts prevents undesired coacervate formations in product while on the shelf (before use). US 2004/186264 describes hair colorant compositions comprising amphoteric surfactants and comprising less than 15% by weight of sodium chloride, based on the weight of amphoteric surfactants. The low content of salts allows promoting the uptake of dye by hair. However, none of these documents is concerned with direct potential benefits for consumer. In particular, none of these documents is concerned with hair esthetic and/or visual and/or styling improvements. More particularly, none of these documents is concerned with improving the manageability of curly hair, notably the curl definition and/or frizz control of curly hair. The inventors have surprisingly discovered that the association in a personal care composition, notably in a hair care composition, of an amphoteric surfactant and a cationic conditioning polymer, while maintaining a low level of residual salts in the composition (typically less than 3% by weight, with respect to the total weight of the composition), allows improving hair styling and/or discipline and/or manageability. In particular, the composition of the invention allows improving curly hair styling, curly hair definition, anti-frizz effect but also curl retention of hair. The compositions of the invention are typically prepared (at least partially) from Ultra Low Salt grade surfactants. SUMMARY OF THE INVENTION The invention firstly relates to a personal car