Tenside composition containing gemini tensides and co-amphiphiles and production and use thereof
The subject invention relates to surfactant compositions of gemini surfactants and co-amphiphile(s), to a process for preparing such compositions, and to their uses, especially as emulsifiers and dispersants.
1 . (canceled)
2 . The surfactant composition of claim 49 , characterized in that the surfactant composition comprises
(A) 5 to 60 wt %, referring to components (A) and (B), of said gemini surfactant.
3 . The surfactant composition according to claim 49 , further comprising
(C) at least 0.1 wt % water, referring to the total composition.
4 . A surfactant composition according to claim 49 , further comprising
(D) at least 0.1 wt % of one or more oil component(s), referring to the total composition.
5 . A surfactant composition according to claim 49 , wherein the co-amphiphile is selected from the group consisting of
a C 6 - to C 40 -alcohol,
a C 6 - to C 24 -carboxylic acid,
a sorbitan(C 6 - to C 22 -)ester,
a methylglucoside(C 6 - to C 22 -)ester,
a sugar(C 6 - to C 22 -)ester,
a mono-, di-, or triglyceride of a C 6 - to C 22 -carboxylic acid,
a lactic acid- or citric acid-esterified derivative of the mono- or diglycerides of a C 6 - to C 22 -carboxylic acid,
a polyglycerol(C 6 - to C 22 -)ester,
a propyleneglycol(C 6 - to C 22 -)ester,
a vitamin ester,
salicylic acid,
benzoic acid,
lecithin, and
mixtures thereof.
6 . A surfactant composition according to claim 49 in the form of an emulsion, characterized in that the co-amphiphiles is present in solid form at 25° C.
7 . A surfactant composition according to claim 49 in the form of a dispersion, characterized in that the co-amphiphiles is present in liquid form at 25° C.
8 . A surfactant composition according to any one of claims 5 or 49 , characterized in that at least two different co-amphiphiles are employed.
9 . A surfactant composition according to claim 49 , wherein at least one co-amphiphiles is
a C 6 - to C 40 -alcohol,
a mono-, di-, and triglyceride of C 6 - to C 22 -carboxylic acid, and
mixtures thereof.
10 . A surfactant composition according to claim 9 , characterized in that the surfactant composition comprises
30 to 50 wt % of C 6 - to C 40 -alcohol,
30 to 50 wt % of a mono-, di-, and triglyceride of a C 6 - to C 22 -carboxylic acid, and
mixtures thereof,
each referring to the gemini surfactant/co-amphiphile(s) composition.
11 . A surfactant composition according to claim 49 in the form of an emulsion, characterized in that the surfactant composition can be produced by a method (phase transfer temperature (PTT) method), which includes at least the following step: combining
(a) a composition (a) comprising the gemini surfactant (A) wherein the composition has a temperature X, with
(b) a composition (b) comprising the co-amphiphile (B) wherein the composition has a temperature Y,
the temperature Y being greater than temperature X.
12 . The surfactant composition of claim 11 , characterized in that the temperature Y is not more than 15° C. higher than the critical phase transfer temperature of the surfactant in composition (b).
13 . Surfactant compositions according to claim 12 , characterized in that the temperatures X and Y are different by at least 3° C.
14 - 15 . (canceled)
16 . A surfactant composition according to claim 14 , characterized in that the hydrophobic double group comprises a C 6 - to C 24 -hydrocarbon residue each and/or the hydrophilic double (head) group comprises an at least monoalkoxylated residue with a sulfonic acid-, carboxylic acid-, phosphonic acid-, polyalcohol-, or polyalkylene oxide group, or salt thereof.
17 . A surfactant composition according to claim 49 characterized in that the surfactant composition comprises 0.01 to 30 wt % of the components (A) and (B), referring to the total composition.
18 - 31 . (canceled)
32 . The surfactant composition of claim 49 wherein said gemini surfactants is present in an amount of from 10 to 60 wt %.
33 . The surfactant composition of claim 49 wherein said gemini surfactants is present in an amount of from 10 to 50 wt %.
34 . The surfactant composition of claim 5 wherein said alcohol is a C 8 - to C 24 -alcohol.
35 . The surfactant composition of claim 5 wherein said carboxylic acid is a C 8 - to C 22 -carboxylic acid.
36 . The surfactant composition of claim 5 wherein 3 to 5 different co-amphiphiles are employed.
37 . The surfactant composition of claim 9 wherein said alcohol is a C 8 - to C 24 -alcohol.
38 . The surfactant composition of claim 10 wherein said alcohol is a C 8 - to C 24 -alcohol.
39 . The surfactant composition of claim 11 wherein said composition (a) contains water.
40 . The surfactant composition of claim 11 wherein said composition (b) contains an oil component.
41 . The surfactant composition of claim 12 wherein the temperatures X and Y are different by at least 5° C.
42 . The surfactant composition of claim 17 wherein the surfactant composition comprises 0.1 to 6 wt % of the components (A) and (B), referring to the total composition.
43 - 48 . (canceled)
49 . A surfactant composition comprising
(A) 1 to 70 wt %, referring to components (A) and (B), of a gemini surfactant having the general formula (A.II).
wherein
R 1 , R 3 are C 5 - to C 25 -alkyl group that can be branched, unbranched, saturated, or unsaturated as far as not adjacently diunsaturated;
R 2 is C 1 - to C 12 -alkylene;
X, Y are (C 2 H 4 O—) x (C 3 H 6 O—) y —FR; x+y≧1, x: 0-15, y: 0-10; and
FR is —SO 3 M, —CH 2 —CO 2 M, —P(O)(OM) 2 , H, —C 3 H 6 SO 3 M, —CH 2 (CHOH) 4 CH 2 OH, insofar as x+y=0,
wherein M=alkali, (alkyl)ammonium, alkanol ammonium, H, or ½ alkaline earth.
(B) referring to the remainder, based on the total of components (A) and (B), one or more co-amphiphile(s) having an HLB value of less than or equal to 6.