Emulsifier combination, emulsion containing the emulsifier combination, and a process for its production
The invention relates to an emulsifier combination which is free from ethoxylated emulsifiers, contains less than 20% by weight water and comprises C 8-14 alkyl oligoglycoside, polyol polyhydroxystearate and C 6-22 acyl glutamate. The emulsifier is suitable for the production of nanoemulsions by conventional cold/cold or hot/hot processes. The invention also relates to a process for the production of the emulsifier combination and to wipes coated with the nanoemulsions.
1 - 26 . (cancelled).
27 . A composition comprising:
(a) a C 8-14 alkyl oligoglycoside;
(b) a polyol hydroxystearate;
(c) a C 6-22 acyl glutamate;
(d) water; and
(e) optionally, at least one auxiliary component,
and wherein the composition is ethoxylate-free.
28 . The composition of claim 27 wherein (a) is lauryl glucoside, (b) is polyglycerol polyhydroxystearate, (c) is a coconut oil fatty acid glutamate, and (e) is sorbitan stearate.
29 . The composition of claim 27 wherein (c) is present in an amount of from about 1 to 50% by weight, based on the weight of the concentrate.
30 . The composition of claim 27 wherein (c) is present in an amount of from about 5 to 11% by weight, based on the weight of the concentrate.
31 . The composition of claim 27 wherein (a) and (b) are present in a ratio by weight of from about 5:1 to 1:5.
32 . The composition of claim 27 wherein (a) and (b) are present in a ratio by weight of about 1:1.
33 . The composition of claim 27 wherein (e) is present in a ratio by weight of (e):(a)+(b) of from about 1:1 to 1:10.
34 . The composition of claim 27 wherein (e) is present in a ratio by weight of (e):(a)+(b) of from about 1:2 to 1:5.
35 . The composition of claim 27 further comprising at least one oil component selected from the group consisting of fatty acid esters of C 6-22 fatty acids with C 6-22 fatty alcohols, C 6-22 dialkyl carbonates, silicone oils, 1,3-dialkyl cyclohexanes and C 6-22 dialkyl ethers, the oil component being present in an amount of from about 1 to 50% by weight, based on the weight of the composition.
36 . The composition of claim 27 wherein (e) is glycerol.
37 . The composition of claim 27 wherein (e) is a C 16-22 fatty alcohol, present in an amount of from about 1 to 10% by weight, based on the weight of the composition.
38 . A nanoemulsion comprising:
(a) from about 0.5 to 5% by weight of a C 8-12 alkyl oligoglycoside;
(b) from about 0.5 to 5% by weight of a polyglycerol polyhydroxystearate;
(c) from about 0.5 to 5% by weight of a C 12-18 acyl glutamate;
(d) from about 0.5 to 5% by weight of a sorbitan ester of a C 6-20 fatty acid;
(e) from about 5.0 to 20% by weight of fatty acid ester of a C 6-20 fatty acid with a C 6-20 fatty alcohol;
(f) from about 1.0 to 10% by weight of a C 6-12 dialkyl carbonate;
(g) from about 0.1 to 5% by weight of a cyclomethicone;
(h) from about 1 to 10% by weight of glycerol; and
(i) remainder, to 100% by weight, water.
39 . A personal care article comprising:
(a) a substrate made from a substance selected from the group consisting of a paper material, a nonwoven material, and a woven material; and
(b) an ethoxylate-free composition impregnated into the substrate, the composition containing:
(i) a C 8-14 alkyl oligoglycoside;
(ii) a polyol hydroxystearate;
(iii) a C 6-22 acyl glutamate;
(iv) optionally, water; and
(v) optionally, at least one auxiliary component.
40 . The article of claim 39 wherein (i) is lauryl glucoside, (ii) is polyglycerol polyhydroxystearate, (iii) is a coconut oil fatty acid glutamate, and (v) is sorbitan stearate.
41 . The article of claim 39 wherein (iii) is present in an amount of from about 1 to 50% by weight, based on the weight of the concentrate.
42 . The article of claim 39 wherein (iii) is present in an amount of from about 5 to 11% by weight, based on the weight of the concentrate.
43 . The article of claim 39 wherein (i) and (ii) are present in a ratio by weight of from about 5:1 to 1:5.
44 . The article of claim 39 wherein (i) and (ii) are present in a ratio by weight of about 1:1.
45 . The article of claim 39 wherein (v) is present in a ratio by weight of (v):(i)+(ii) of from about 1:1 to 1:10.
46 . The article of claim 39 wherein (v) is present in a ratio by weight of (v):(i)+(ii) of from about 1:2 to 1:5.
47 . The article of claim 39 further comprising at least one oil component selected from the group consisting of fatty acid esters of C 6-22 fatty acids with C 6-22 fatty alcohols, C 6-22 dialkyl carbonates, silicone oils, 1,3-dialkyl cyclohexanes and C 6-22 dialkyl ethers, the oil component being present in an amount of from about 1 to 50% by weight, based on the weight of the composition.
48 . The article of claim 39 wherein (v) is glycerol.
49 . The article of claim 39 wherein (v) is a C 16-22 fatty alcohol, present in an amount of from about 1 to 10% by weight, based on the weight of the composition.
50 . A personal care article comprising a substrate made from a substance selected from the group consisting of a paper material, a nonwoven material and a woven material, the substrate being impregnated with an ethoxylate-free nanoemulsion containing:
(a) from about 0.5 to 5% by weight of a C 8-12 alkyl oligoglycoside;
(b) from about 0.5 to 5% by weight of a polyglycerol polyhydroxystearate;
(c) from about 0.5 to 5% by weight of a C 12-18 acyl glutamate;
(d) from about 0.5 to 5% by weight of a sorbitan ester of a C 6-20 fatty acid;
(e) from about 5.0 to 20% by weight of fatty acid ester of a C 6-20 fatty acid with a C 6-20 fatty alcohol;
(f) from about 1.0 to 10% by weight of a C 6-12 dialkyl carbonate;
(g) from about 0.1 to 5% by weight of a cyclomethicone;
(h) from about 1 to 10% by weight of glycerol; and
(i) optionally, water.