Formulation comprising ester quats based on isopropanolamine
View Patent ↗Cosmetic formulations including specific ester quats based on isopropanolamine are provided, as well as the use of these ester quats in cosmetics.
1. A cosmetic formulation comprising:
0.2 to 25% by weight of at least one compound of general formula I)
where R 1 is an acyl radical of an at least monounsaturated fatty acid with a chain length of 18 to 24 carbon atoms or an acyl radical of isostearic acid or ricinoleic acid,
R 2 is an alkyl radical having 1 to 6 carbon atoms,
a=1 to 3, and
b=1 to 3, with the proviso that a+b=4,
2.0 to 7.0% by weight of a mixture of fatty alcohols having 16 and 18 carbon atoms,
0.1 to 7% by weight of at least one compound of general formula II
where R 4 —CO is selected from aliphatic, linear or branched acyl radical having 6 to 22 carbon atoms and 0, 1, 2 or 3 double bonds,
R 3 and R 5 are selected from identical or different alkyl radicals, which can optionally be substituted with polar groups,
n is an integer selected from 1 to 10; and the formulation further comprises
40 to 99.8% by weight of water,
where the percentages by weight refer to the total formulation.
2. The cosmetic formulation according to claim 1 , further comprising up to 8% by weight of a compound of general formula Ia)
where R 1a is an acyl radical of another carboxylic acid as defined for R 1 and
R 2b is an alkyl radical having 1 to 6 carbon atoms,
c=1 to 3, and
d=1 to 3, with the proviso that c+d=4,
where the percentages by weight refer to the total formulation, and wherein the at least one compound of general formula I) constitutes at least 30% by weight, based on all of the compounds of general formula I) and Ia) present in the formulation.
3. The cosmetic formulation according to claim 1 , wherein R 1 is selected from the acyl radicals of the acids selected from the group consisting of oleic acid, elaidic acid, vaccenic acid, gadoleic acid, icosenoic acid, cetoleic acid, erucic acid, nervonic acid, linoleic acid, alpha-linolenic acid, gamma-linolenic acid, calendula acid, punicic acid, alpha-elaeostearic acid, beta-elaeostearic acid, arachidonic acid, timnodonic acid, clupanodonic acid, and cervonic acid.
4. The cosmetic formulation according to claim 1 , wherein
a=b=2.
5. The cosmetic formulation according to claim 1 , wherein said formulation contains no fatty acids or fatty acid salts.
6. The cosmetic formulation according to claim 1 , wherein the fatty alcohol is selected from the group consisting of octanol, decanol, lauryl alcohol, isolauryl alcohol, anteisolauryl alcohol, myristyl alcohol, isomyristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol, anteisostearyl alcohol, eicosanol, petroselinyl alcohol, Guerbet alcohol, arachyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol, hectacosanol, octacosanol, melissyl alcohol, and mixtures thereof.
7. The cosmetic formulation according to claim 1 , further comprising at least one counterion to the compound of general formula I), wherein said at least one counteranion is selected from the group consisting of chloride, bromide, iodide, alkyl sulphate, alkylsulphonate, triflate, tosylate, phosphate, sulphate, hydrogensulphate, lactate, glycolate, acetate and citrate.
8. The cosmetic formulation according to claim 1 , wherein the compound of general formula I and compound of general formula II are present, respectively, in a weight ratio of 20:1 to 1:20.
9. The cosmetic formulation according to claim 1 , wherein the compound of general formula I and compound of general formula II are present, respectively, in a weight ratio of 10:1 to 1:10.
10. The cosmetic formulation according to claim 1 , wherein the compound of general formula I and compound of general formula II are present, respectively, in a weight ratio of 5:1 to 1:5.
11. The cosmetic formulation according to claim 1 , wherein the compound of general formula I and compound of general formula II are present, respectively, in a weight ratio of 3:1 to 1:3.
12. The cosmetic formulation according to claim 1 , wherein the mixture of fatty alcohols having 16 and 18 carbon atoms is a mixture of coconut or tallow fatty alcohols.
13. A method of treating keratin fibers, said method comprising applying a cosmetic formulation according to claim 1 to keratin fibers.