Translucent gel system

• US 20160067153A1
• Filed: 04/23/2014
• Published: 03/10/2016
• Est. Priority Date: 04/30/2013
• Status: Active Grant

• Current Assignee: Specialty Operations France
• Original Assignee: Rhodia Operations (Solvac SA)
• Inventors: ZHANG, Hai Zhou, CHEN, Xi
• Granted Patent: US 9,937,110 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61K 2800/262 Transparent; Translucent
• CPC Class Codes: A61K 8/042 Gels
• CPC Class Codes: A61K 8/361 Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides thereof
• CPC Class Codes: A61K 8/416 Quaternary ammonium compounds A61K8/35 takes precedence
• CPC Class Codes: A61K 8/45 Derivatives containing from 2 to 10 oxyalkylene groups
• CPC Class Codes: A61Q 5/12 Preparations containing hair conditioners

Abstract

The present invention concerns a translucent gel system, notably a hair conditioner gel, comprising at least a carboxylic acid, an alkoxylated alkyl or alkenyl amine and a cationic surfactant. Such a translucent gel system provides an excellent conditioning effect for washing skin and/or hair and a high transmittance.

Claims

1. A gel system, comprising:

(1) from 1 to 10% by weight of a carboxylic acid having an alkyl or alkenyl chain comprising from 8 to 22 carbon atoms;

(2) from 1 to 10% by weight of an alkoxylated alkyl or alkenyl amine;

(3) from 0.5 to 5% by weight of a cationic surfactant; and

(4) water.

2. The gel system according to claim 1, wherein said gel exhibits an apparent viscosity between 1000 and 100000 cps.

3. The gel system according to claim 1, wherein carboxylic acids are chosen in the group consisting of:

myristic acid, caprylic acid, capric acid, lauric acid, palmitic acid, stearic acid, oleic acid, linoleic acid, arachidic acid, behenic acid, erucic acid, ricinoleic acid, elaidic acid, arichidonic acid, myristoleic acid, and mixtures thereof.

4. The gel system according to claim 1, wherein the alkoxylated alkyl or alkenyl amine compound also comprises at least one hydroxyl function.

5. The gel system according to claim 1, wherein alkoxylated alkyl or alkenyl amine compound is a compound according to formula (I):

R—

N—

[(X—

O)_y—

H]₂ 

 

(I)

wherein;

R is selected from alkyl and alkenyl groups, each comprising from 8 to 22 carbon atoms per group;

X is an alkyl group containing 1 to 4 carbon atoms; and

y is 1, 2, 3, 4 or 5.

6. The gel system according to claim 5, wherein R is an alkyl or alkenyl group that comprises from 12 to 22 carbon atoms per group.

7. The gel system according to claim 5, wherein X is ethyl.

8. The gel system according to claim 1, wherein y is 2.

9. The gel system according to claim 1, wherein alkoxylated alkyl or alkenyl amines are chosen in the group consisting of:

bis(2-hydroxyethyl) hydrogenated tallow amine, bis(2-hydroxyethyl) lauryl amine, bis(2-hydroxyethyl) coco amine, bis(2-hydroxyethyl) myristyl amine, bis(2-hydroxyethyl) palmitoyl amine, bis(2-hydroxyethyl) stearyl amine, bis(2-hydroxyethyl) palm amine, bis(2-hydroxyethyl) palm kernel amine, bis(2-hydroxyethyl) tallow amine, bis(2-hydroxyethyl) oleyl amine, and mixtures thereof.

10. The gel system according to claim 1, wherein the weight ratio of carboxylic acid/amine in the gel system is between 3:

1 and 1;

3.

11. The gel system according to claim 1, wherein the cationic surfactant is a quaternary ammonium material.

12. The gel system according to claim 1, wherein the weight ratio of carboxylic acid/cationic surfactant in the gel system is between 4:

1 and 1;

4.

13. The gel system according to claim 1, wherein the weight ratio of amine/cationic surfactant in the gel system is comprised 5:

1 and 1;

5.

14. The gel system according to claim 1, wherein it comprises a humectant.

15. The gel system according to claim 1, wherein said gel system is substantially free or completely free of silicone.

16. The gel system according to claim 1, wherein said gel system comprises an amidoamine.

17. The gel system according to claim 1, wherein said gel system comprises an amidoamine according to the general formula (II):

R¹—

CONH—

(CH₂)_mN(R²)(R³) 

 

(II)

wherein

R¹ is a hydrocarbyl chain comprising 10 or more carbon atoms,

R² and R³ are, independently from each other, selected from the group consisting of hydrogen and hydrocarbyl chains comprising from 1 to 10 carbon atoms per chain, and

m is an integer from 1 to about 10.

18. A process to produce a gel system according to claim 1, wherein at least the carboxylic acid, the amine and the cationic surfactant are mixed together under heating.

19. The process according to claim 18, wherein the gel system is obtained by:

heating the carboxylic acid and the amine until they are molten,

separately heating a cationic surfactant in water until it is dissolved or suspended, then

adding the molten carboxylic acid and the amine mix to the cationic surfactant.

21. The gel system of claim 1, wherein the gel system is a hair conditioning gel.

20. A gel system made by mixing at least the following components:

(1) from 1 to 10% by weight of a carboxylic acid having an alkyl or alkenyl chain comprising from 8 to 22 carbon atoms;

(2) from 1 to 10% by weight of an alkoxylated alkyl or alkenyl amine;

(3) from 0.5 to 5% by weight of a cationic surfactant; and

(4) water.