Bi-modal emulsions
View Patent ↗A process for preparing bi-modal water emulsions is disclosed comprising: I) forming a mixture comprising; A) 100 parts by weight of a hydrophobic oil, B) 1 to 1000 part by weight of a water continuous emulsion having at least one surfactant, II) admixing additional quantities of the water continuous emulsion and/or water to the mixture from step I) to form a bi-modal emulsion.
1. A process for making a bi-modal emulsion comprising:
I) forming a mixture comprising
A) 100 parts by weight of a hydrophobic oil, and
B) 1 to 1000 part by weight of a water continuous emulsion having at least one surfactant and
II) admixing additional quantities of the water continuous emulsion and/or water to the mixture from step I) to form a bi-modal emulsion, wherein the water continuous emulsion is a silicone emulsion and the bi-modal emulsion contains less than 1 weight cyclosiloxanes.
2. The process of claim 1 wherein the mixture of step I) consists essentially of components A) and B).
3. The process of claim 1 wherein the additional quantities of the water continuous emulsion and/or water added in step II to the mixture from step I is done in incremental portions, whereby each incremental portion comprises less than 50 weight % of the mixture from step I and each incremental portion of water continuous emulsion is added successively to the previous after the dispersion of the previous incremental portion of water continuous emulsion and/or water, wherein sufficient incremental portions of water continuous emulsion and/or water are added to form the bi-modal emulsion.
4. The process of claim 1 wherein the hydrophobic oil is a silicone.
5. The process of claim 1 wherein the hydrophobic oil is an organic oil.
6. The process of claim 1 where the quantity of the water continuous emulsion and/or water added to the mixture provides a bi-modal emulsion containing at least 75% by weight of components A) and B).
7. The process of claim 1 where the bi-modal emulsion has a viscosity less than 100,000 cP.
8. The process of claim 1 where the surfactant concentration in the bi-modal emulsion is less than 1 weight %.
9. The bi-modal emulsion produced by claim 1 .
10. The process of claim 4 where the bi-modal emulsion has a viscosity less than 100,000 cP.
11. The process of claim 3 wherein the hydrophobic oil is a silicone.
12. A process for making a bi-modal emulsion comprising:
I) forming a mixture comprising
A) 100 parts by weight of a hydrophobic oil, and
B) 1 to 1000 part by weight of a water continuous emulsion having at least one surfactant and
II) admixing additional quantities of the water continuous emulsion and/or water to the mixture from step I) to form a bi-modal emulsion, wherein the hydrophobic oil is a silicone and the bi-modal emulsion contains less than 1 weight % cyclosiloxanes.
13. The process of claim 12 wherein the water continuous emulsion is a silicone emulsion.
14. The process of claim 12 wherein the water continuous emulsion is an organic emulsion.
15. The process of claim 12 where the bi-modal emulsion has a viscosity less than 100,000 cP.
16. The process of claim 12 where the quantity of the water continuous emulsion and/or water added to the mixture provides a bi-modal emulsion containing at least 75% by weight of components A) and B).