Surfactant thickened systems comprising microfibrous cellulose and methods of making same
View Patent ↗Surfactant systems are provided using microfibrous cellulose to suspend particulates. In one embodiment the surfactant system includes a microfibrous cellulose at a concentration from about 0.05% to about 1.0% (w/w), a surfactant at a concentration of about 51% to about 99% (w/w active surfactant), and a suspended particulate. Also provided herein are methods for preparing surfactant systems including microfibrous cellulose.
1. An aqueous composition comprising a high surfactant system consisting essentially of water, a microfibrous cellulose present in the aqueous composition at a concentration from about 0.05% to about 0.155% (w/w), a surfactant present in the aqueous composition at a concentration from about 51% to about 99% (w/w active surfactant), and a suspended particulate, wherein the aqueous composition is clear.
2. The aqueous composition according to claim 1 , wherein the microfibrous cellulose is present in the aqueous composition at a concentration from about 0.06% to about 0.125%.
3. The aqueous composition according to claim 2 , wherein the surfactant is present in the aqueous composition at a concentration from about 80% (w/w active surfactant) to about 99%.
4. The aqueous composition according to claim 3 , wherein the suspended particulate comprises air bubbles.
5. The aqueous composition of claim 3 , wherein the pH is from about 3 to about 11.
6. The aqueous composition according to claim 1 , wherein the microfibrous cellulose is present in the aqueous composition at a concentration from about 0.075% to about 0.125%.
7. The aqueous composition according to claim 1 , wherein the microfibrous cellulose is present in the aqueous composition at a concentration of about 0.125%.
8. The aqueous composition of claim 1 , wherein the surfactant comprises a non-ionic surfactant, an anionic surfactant, or a combination thereof.
9. The aqueous composition of claim 1 , wherein the microfibrous cellulose comprises a blend of a microfibrous cellulose, xanthan gum, and carboxymethylcellulose in a ratio of 6:3:1.
10. The aqueous composition of claim 1 , wherein the microfibrous cellulose comprises a blend of a microfibrous cellulose, guar gum, and carboxymethylcellulose in a ratio of 3:1:1.
11. A surfactant system comprising a microfibrous cellulose, a surfactant, and a suspended particulate, wherein the microfibrous cellulose is present at a concentration of about 0.125% and the surfactant is present at a concentration of about 99% (w/w active surfactant).
12. The surfactant system of claim 11 , wherein the pH is from about 3 to about 11.
13. Method of preparing a surfactant system comprising:
combining a microfibrous cellulose with water and mixing with high shear,
adding a surfactant and then mixing, and
adding particulates followed by mixing,
wherein the microfibrous cellulose is present at a concentration from about 0.05% to about 0.15% (w/w), the surfactant is present at a concentration from about 51% to about 99% (w/w active surfactant), and the resulting system is clear and the particulates are suspended therein.
14. The method of claim 13 wherein the microfibrous cellulose is present at a concentration from about 0.06% to about 0.125%.
15. The method of claim 13 , wherein the microfibrous cellulose is present at a concentration from about 0.075% to about 0.125%.
16. The method of claim 13 , wherein the microfibrous cellulose is present at a concentration of about 0.125%.
17. The method of claim 13 , wherein the surfactant is present at a concentration from about 80% (w/w active surfactant) to about 99%.
18. The method of claim 13 , wherein the surfactant comprises a non-ionic surfactant, an anionic surfactant, or a combination thereof.
19. The method of claim 13 , wherein the microfibrous cellulose comprises a blend of a microfibrous cellulose, xanthan gum, and carboxymethylcellulose in a ratio of 6:3:1.
20. The method of claim 13 , wherein the microfibrous cellulose comprises a blend of a microfibrous cellulose, guar gum, and carboxymethylcellulose in a ratio of 3:1:1.
21. Method of preparing a surfactant system comprising a microfibrous cellulose, a surfactant, and particulates comprising:
combining a microfibrous cellulose with water and mixing,
adding a surfactant and then mixing, and
adding particulates followed by mixing,
wherein the microfibrous cellulose is present at a concentration of about 0.05% to about 1.0% (w/w) and the surfactant is present at a concentration of about 99% (w/w active surfactant); and
wherein the resulting system is clear and the particulates are suspended therein.