Composition containing a hydrophobized cationic polymer

Abstract

To provide a composition comprising a cationic polymer, wherein the composition is stable even when comprising a relatively large amount of oil.SOLUTION: The present invention relates to a composition comprising: (a-1) at least one cationic polymer, (a-2) at least one monovalent non-polymeric acid or a salt thereof, (a-3) water, (b-1) at least one oil, and (b-2) at least one fatty acid. The inventive composition is stable even when comprising a relatively large amount of oil, such as up to 40 mass% relative to total weight of the composition.SELECTED DRAWING: Figure 1C

Claims

1. (a-1) At least one cationic polymer selected from chitosan, (a-2) Lactic acid or its salt, (a-3) Water, (b-1) at least one type of oil, and (b-2) At least one C4-C22 fatty acid A composition comprising, The amount of the (a-1) cationic polymer in the composition is 0.01% by mass to 15% by mass relative to the total mass of the composition. The amount of (a-2) lactic acid or its salt in the composition is 0.01% by mass to 20% by mass relative to the total mass of the composition. The amount of (a-3) water in the composition is 40% to 90% by mass relative to the total mass of the composition. The amount of the (b-1) oil in the composition is 10% by mass to 45% by mass of the total mass of the composition. A composition in which the amount of the (b-2) C4-C22 fatty acid in the composition is 0.01% by mass to 15% by mass, relative to the total mass of the composition.

2. The composition according to claim 1, wherein the (a-1) cationic polymer is hydrophobized by the (b-2) C4-C22 fatty acid.

3. The composition according to claim 1 or 2, wherein the amount of the (a-1) cationic polymer in the composition is 0.05% by mass to 10% by mass with respect to the total mass of the composition.

4. The composition according to any one of claims 1 to 3, wherein the amount of (a-2) lactic acid or a salt thereof in the composition is 0.05% by mass to 15% by mass with respect to the total mass of the composition.

5. The composition according to any one of claims 1 to 4, wherein the amount of (a-3) water in the composition is 45% by mass to 85% by mass with respect to the total mass of the composition.

6. The composition according to any one of claims 1 to 5, wherein the (b-1) oil is selected from vegetable oils, synthetic ester oils, and mixtures thereof.

7. The composition according to any one of claims 1 to 6, wherein the amount of the (b-1) oil in the composition is 20% by mass to 40% by mass with respect to the total mass of the composition.

8. The above (b-2) C4 to C22 fatty acids are C 4 ~C 22 A composition according to any one of claims 1 to 7, selected from saturated and unsaturated linear or branched fatty acids.

9. The composition according to any one of claims 1 to 8, wherein the amount of the (b-2)C4 to C22 fatty acids in the composition is 0.05% to 10% by mass with respect to the total mass of the composition.

10. The composition according to any one of claims 1 to 9, comprising (a-1) a cationic polymer, (a-2) lactic acid or a salt thereof, and (a-3) an aqueous phase comprising water.

11. The composition according to any one of claims 1 to 10, comprising (b-1) oil and (b-2) a fatty phase containing C4 to C22 fatty acids.

12. A cosmetic method for keratin substances, A step of applying the composition according to any one of claims 1 to 11 to the keratin substance, A step of drying the composition to form a cosmetic film on the keratin material. A method that includes this.

13. (a-1) At least one cationic polymer selected from chitosan, (a-2) Lactic acid or its salt, (a-3) Water, (b-1) At least one type of oil A composition comprising, For stabilizing a composition in which the amount of the (b-1) oil in the composition is 10% by mass to 45% by mass relative to the total mass of the composition, (b-2) Use of at least one C4-C22 fatty acid in the above composition.

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