Emulsifier-free bio mineral structured emulsion
A process for creating cold emulsions for cosmetic use involves creating a gel component by exfoliating silicate compounds with catalysts and organic materials under pressure and mixing the resulting components with water, mixing an oil phase with additional powdered components as desired, and mixing the gel component with the oil phase in a high shear mixer until a Pickering emulsion is created. The resulting emulsion is simple to manufacture, stable for long periods of time, and has a desirable texture for cosmetic use.
1. A gel composition comprising a structuring agent mixed with water, the structuring agent comprising:
at least one silicate selected from the group consisting of phyllosilicate, inosilicate, cyclosilicate, tectosilicate, neosilicate and sorosilicate,
a polymer selected from the group consisting of xanthan gum, guar gum, tapioca starch, corn starch, potato starch, methyl cellulose, hydroxypropyl cellulose, carboxy cellulose, chitin, pectin and arabinoxylans, and
an acid,
wherein the structuring agent comprises layers of the silicate with the polymer disposed there between, and wherein structuring agent is created by extruding the silicate, polymer and acid together in a pressurized environment such that the silicate is exfoliated by the acid so that the silicate has a modified surface charge, and is intercalated by the polymer so that the polymer is disposed between the layers of the silicate.
2. The gel composition according to claim 1 , wherein the silicate is a phyllosilicate selected from the group consisting of Pelagite, vermiculite, zeolite, montmorillonite, sodium magnesium silicate, yofortierite, calcium silicate, lithium sodium magnesium silicate, smectite, bentonite, illite, kaolin and Canadian colloidal clay.
3. The gel composition according to claim 1 , wherein the acid is selected from the group consisting of citric acid, lactic acid, glycolic acid, hydrochloric acid and phosphoric acid.
4. The gel composition according to claim 1 , wherein the structuring agent is present in an amount between 0.1-10% by weight.
5. The gel composition according to claim 1 , further comprising a mineral salt and a preservative.
6. An emulsion comprising a mixture of the gel composition according to claim 1 with an oil component, the emulsion being created by mixing the gel composition with the oil component in a high shear mixture to create a Pickering emulsion.
7. The emulsion according to claim 6 , wherein the oil component contains at least one component selected from the group consisting of vegetable oils, butters, waxes, and silicones.
8. A process for creating a gel composition that comprises structuring agent and water, comprising the following steps:
mixing under pressure at least one component from each of the following groups:
a silicate selected from the group consisting of phyllosilicate, inosilicate, cyclosilicate, tectosilicate, neosilicate and sorosilicate,
a polymer selected from the group consisting of xanthan gum, guar gum, tapioca starch, corn starch, potato starch, methyl cellulose, hydroxypropyl cellulose, carboxy cellulose, chitin, pectin and arabinoxylans, and
an acid, said step of mixing taking place in an extruder at elevated pressure such that the at least one silicate is exfoliated and is intercalated by the polymer, so that the structuring agent comprises layers of the silicate with the polymer disposed between the layers of the silicate.
9. The process according to claim 8 , further comprising adding a stabilizer and preservative to the gel.
10. The process according to claim 8 , wherein the structuring agent is mixed with water in a high shear mixer.
11. The process according to claim 8 , further comprising forming a Pickering emulsion by mixing the gel with an oil in a high shear mixer.
12. The process according to claim 11 , further comprising adding powdered components to the oil and gel prior to mixing.
13. The process according to claim 11 , further comprising adjusting the pH of the emulsion by adding a buffer.