Patent
Patent US7718199B1 & EP1736167A2
|
|
|
|
% by wt |
|---|---|---|---|
|
A
|
Water deionised |
– |
Qsp 100 |
|
Carbomer |
– |
0.45 |
|
|
B
|
Glycerin |
– |
2.00 |
|
Phenoxyethanol |
– |
qs |
|
|
C
|
Pripure 3759 [Squalane] |
Croda |
3.00 |
|
Crodamol AB-LQ-(RB) [C12-15 Alkyl Benzoate] |
Croda |
2.00 |
|
|
Optasense G82 [Acrylates/C10-30 Alkyl Acrylate Crosspolymer] |
Croda |
0.20 |
|
|
D
|
Potassium Sorbate |
– |
1.00 |
|
Sodium Sulfite |
– |
0.01 |
|
|
E
|
Water deionised |
– |
2.20 |
|
Sodium Hydroxide 30% |
– |
0.22 |
|
|
F
|
Water deionised |
– |
0.50 |
|
Active ingredient Sebuless™ |
Sederma |
0.50 |
|
|
G
|
Tween 20-LQ-(RB) |
Croda |
1.00 |
|
Fragrance |
– |
0.10 |
Method
Part A: Sprinkle the carbomer in the water and allow swelling for 60 minutes without stirring. Weigh and mix Part B. Weigh and mix Part C. Pour Part B into Part A with Staro stirring (s=500 rpm). Pour Part C into Part A+B with Staro stirring (s=1000 rpm). Extemporaneously, add Part D to Part A+B+C with Staro stirring (s=1000 rpm). Neutralize with Part E with Staro stirring (s=5000 rpm), mix well. Weigh and mix Part F and add it to the compound. Mix well. Add Part G. Mix well.