Use of ester-modified organopolysiloxanes for producing cosmetic or pharmaceutical compositions
View Patent ↗The invention relates to emulsifier systems containing ester-modified, polyether-free organopolysiloxanes, to their use, in particular the production of cosmetic, dermatological or pharmaceutical formulations and also of care and cleaning compositions, and also the products themselves produced with the help of the emulsifier systems.
1. An emulsifier system comprising a modified siloxane of general formula (I)
where
N is a+b+c+d+e+f+2=20 to 250,
a is 1 to 230,
b is 1 to 100,
c is 1 to 100,
d is 0 to 50,
e is 0 to 10,
f is 0 to 10,
R 1 independently of the others is identical or different and is selected from the group consisting of saturated or unsaturated alkyl groups having 1 to 30 carbon atoms, alkaryl radicals having 7 to 30 carbon atoms, and aryl radicals having 6 to 30 carbon atoms,
R 2 independently of the others is identical or different and is selected from the group R 1 , R 3 , R 4 or R 5 ,
R 3 independently of the others is identical or different ester radicals of general formula (Ia)
where
m is 1 to 4,
n is 0 or 1,
p is 0 or 1,
R 7 is the acyl radicals of monobasic, saturated or unsaturated, linear or branched fatty acids having 6 to 30 carbon atoms,
R 8 is hydrogen or R 7 ,
R 4 is the radicals of the general formula (Ib)
where
q is 1 to 20,
Y and Z, independently of one another, are identical or different radicals selected from the group —H, —OH, —CH 3 , —CH 2 CH 3 or —CH 2 OH, where at least one radical must be from the group —OH or —CH 2 OH,
R 5 independently of the others is saturated or unsaturated alkyl groups having 1 to 30 carbon atoms or alkaryl radicals having 7 to 30 carbon atoms,
R 6 independently of the others is identical or different radicals of the general formula (Ic)
where a, b, c, d, e, f, R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are as defined above.
2. The emulsifier system according to claim 1
where
N a+b+c+d+e+f+2=50 to 150,
a is 10 to 130,
b is 5 to 30,
c is 5to 30,
d is 0,
e is 0,
f is 0,
R 1 is alkyl groups having 1 to 4 carbon atoms,
R 2 is R 1 ,
m is 1 or 4,
n is 0 or 1,
p is 0 or 1,
R 7 is the acyl radicals of monobasic, saturated or unsaturated, linear or branched fatty acids having 8 to 22 carbon atoms,
R 8 is hydrogen,
q is 1,
Y is —OH and
Z is —H.
3. A water-in-oil emulsion comprising at least one emulsifier system according to claim 1 .
4. An oil-in-water emulsion comprising at least one emulsifier system according to claim 1 .
5. A water-in-silicon emulsion comprising at least one emulsifier system according to claim 1 .
6. A dispersion comprising at least the emulsifier system of claim 1 .
7. A formulation comprising at least the emulsifier system of claim 1 .
8. The formulation of claim 7 which is a cosmetic formulation.
9. The formulation of claim 7 which is a dermatological formulation.
10. The formulation of claim 7 which is a pharmaceutical formulation.
11. A composition comprising at least said emulsifier system of claim 1 .
12. The composition of claim 11 which is a care composition.
13. The composition of claim 11 which is a cleaning composition.
14. The emulsifier system of claim 1 wherein said modified siloxane is polyether-free.
15. The emulsifier system of claim 1 wherein
N is 80 to 120,
a is 60 to 100,
b is 10 to 30,
c is 5 to 20,
d=e=f is 0,
R 1 ═R 2 is CH 3 ,
m is 1,
n is 1,
p is 0,
R 7 is the acyl radical of a fatty acid having 8 to 18 carbon atoms,
q is 1,
Y is OH, and
Z is H.
16. The emulsifier system of claim 1 wherein
N is 80 to 20,
a is 6 to 100,
b is 1 to 30,
c is 5 to 20,
d=e=f is 0,
R 1 ═R 2 is CH 3 ,
m is 1,
n is 1,
p is 1,
R 7 is the acyl radical of a fatty acid having 8 to 18 carbon atoms,
R 8 is H,
q is 1,
Y is OH,
Z is H.
17. The emulsifier system of claim 1 wherein
N is 80 to 120,
a is 60 to 100,
b is 10 to 30,
c is 5 to 20,
d=e=f is 0,
R 1 ═R 2 is CH 3 ,
m is 4,
n is 0,
p is 0,
R 7 is the acyl radical of a fatty acid having 8 to 18 carbon atoms,
q is 1,
Y is OH, and
Z is H.