Polyaphron dispersions containing a complex internal phase
A polyaphron dispersion comprising an external phase and polyaphrons having an internal phase, the internal phase comprising (i) a first phase which is liquid and (ii) a second phase which is liquid or gaseous.
1. A polyaphron dispersion comprising:
from about 5% to about 30% by weight based on the total weight of the polyaphron dispersion of an external phase; and
from about 70% to about 95% by weight based on the total weight of the polyaphron dispersion of polyaphrons having an internal phase, the internal phase comprising:
(i) a first phase which is liquid, and
(ii) a second phase which is liquid or gaseous;
wherein when the internal phase comprises at least two liquid phases, each of the liquid phases is a liquid at room temperature.
2. The polyaphron dispersion according to claim 1 , wherein the internal phase comprises at least two liquid phases.
3. The polyaphron dispersion according to claim 1 , wherein the internal phase comprises an aqueous phase and a non-aqueous phase.
4. The polyaphron dispersion according to claim 3 , wherein the internal phase comprises a single aqueous phase and a single non-aqueous phase.
5. The polyaphron dispersion according to claim 1 , wherein the internal phase comprises an emulsion.
6. The polyaphron dispersion according to claim 1 wherein the internal phase comprises polyaphrons.
7. The polyaphron dispersion according to claim 1 , wherein the internal phase additionally comprises a solid phase.
8. The polyaphron dispersion according to claim 1 , wherein the internal phase comprises at least 60 wt. % of an aqueous phase.
9. The polyaphron dispersion according to claim 1 , wherein a component of the external phase is capable of reacting with a component of the internal phase upon the polyaphrons being disrupted or destroyed.
10. A process for preparing a polyaphron dispersion as defined in claim 1 , which comprises:
a. forming the internal phase; and
b. forming a polyaphron dispersion comprising an external phase and the internal phase prepared in step a.
11. The polyaphron dispersion according to claim 1 , wherein the external phase is aqueous.
12. The polyaphron dispersion according to claim 1 , wherein the second phase is gaseous and the internal phase additionally comprises a solid phase.
13. A polyaphron dispersion comprising:
from about 5% to about 30% by weight based on the total weight of the polyaphron dispersion of an external phase; and
from about 70% to about 95% by weight based on the total weight of the polyaphron dispersion of polyaphrons having an internal phase, the internal phase comprising:
(i) a first phase which is liquid, and
(ii) a second phase which is liquid or gaseous;
wherein when the internal phase comprises at least two liquid phases, each of the liquid phases is a liquid at room temperature,
wherein the internal phase comprises polyaphrons.
14. The polyaphron dispersion according to claim 13 , wherein the external phase is aqueous.
15. The polyaphron dispersion according to claim 13 , wherein the internal phase comprises at least two liquid phases.
16. The polyaphron dispersion according to claim 13 , wherein the internal phase comprises an aqueous phase and a non-aqueous phase.
17. A polyaphron dispersion comprising:
from about 5% to about 30% by weight based on the total weight of the polyaphron dispersion of an external phase; and
from about 70% to about 95% by weight based on the total weight of the polyaphron dispersion of polyaphrons having an internal phase, the internal phase comprising:
(i) a first phase which is liquid, and
(ii) a second phase which is liquid or gaseous;
wherein when the internal phase comprises at least two liquid phases, each of the liquid phases is a liquid at room temperature,
wherein the internal phase comprises at least 60 wt. % of an aqueous phase.
18. The polyaphron dispersion according to claim 17 , wherein the external phase is aqueous.
19. The polyaphron dispersion according to claim 17 , wherein the internal phase comprises at least two liquid phases.