Surfactant free silicone emulsion
A silicone emulsion free of a surfactant and an emulsifier is disclosed. The emulsion includes a dispersed oil phase having a polyorganosiloxane with one or more hydroxyl groups in a continuous aqueous or anhydrous organic diol phase including an anionic polymer.
1. A silicone emulsion comprising a dispersed oil phase comprising a hydroxyl terminated or hydroxyalkyl terminated polyorganosiloxane in a continuous phase comprising an aqueous or organic diol medium including an anionic polymer having carboxyl groups-, wherein the silicone emulsion is free of a surfactant or an emulsifier, and wherein stability of said silicone emulsion is achieved by hydrogen bonding interactions and steric stabilization between the hydroxyl terminated or hydroxyalkyl terminated polyorganosiloxane and the anionic polymer having carboxyl groups, wherein said silicone emulsion is free of fillers.
2. The emulsion according to claim 1 , wherein the anionic polymer is a polyacrylic acid polymer.
3. The emulsion according to claim 1 , wherein the oil phase further comprises one or more organic based oil, hydrocarbon based oil, or an oil containing silicon atoms.
4. The emulsion according to claim 1 , wherein the emulsion further comprises one or more active agents.
5. The emulsion according to claim 1 , wherein the emulsion has a viscosity greater than about 10,000 centipoise (cP).
6. The emulsion according to claim 1 , wherein the emulsion is included in a topical cosmetic composition.
7. The emulsion according to claim 4 , wherein one or more active agents includes a water soluble or oil soluble pharmaceutical active.
8. The emulsion according to claim 7 , wherein the water soluble or oil soluble pharmaceutical active is selected from the group consisting of hydrocortisone, ketoprofen, timolol, pilocarpine, adriamycin, mitomycin C, morphine, hydromorphone, diltiazem, theophylline, doxorubicin, daunorubicin, heparin, penicillin G, carbenicillin, cephalothin, cefoxitin, cefotaxime, 5-fluorouracil, cytarabine, 6-azauridine, 6-thioguanine, vinblastine, vincristine, bleomycin sulfate, aurothioglucose, suramin, mebendazole clonidine, scopolamine, propranolol, phenylpropanolamine hydrochloride, ouabain, atropine, haloperidol, isosorbide, nitroglycerin, ibuprofen, ubiquinones, indomethacin, prostaglandins, naproxen, salbutamol, guanabenz, labetalol, pheniramine, metrifonate, and steroids.
9. The emulsion according to claim 4 , wherein one or more active agents includes vitamins, vitamin derivatives, or pro-vitamins.
10. The emulsion according to claim 9 , wherein the vitamins, vitamin derivatives, or pro-vitamins are selected from the group consisting of Vitamin A1, retinol, C 2 -C 18 esters of retinol, vitamin E, tocopherol, esters of vitamin E, trans-retinol, 1,3-cis-retinol, 11-cis-retinol, 9-cis-retinol, 3,4-didehydro-retinol, Vitamin C and its derivatives, Vitamin B1, Vitamin B2, Pro Vitamin B5, panthenol, Vitamin B6, Vitamin B12, niacin, folic acid, biotin, pantothenic acid, ascorbyl dipalmitate, ascorbyl methylsilanol pectinate, ascorbyl palmitate, ascorbyl stearate, ascorbyl glucocide, sodium ascorbyl phosphate, sodium ascorbate, disodium ascorbyl sulfate, and potassium (ascorbyl/tocopheryl) phosphate.
11. The emulsion according to claim 4 , wherein one or more active agents includes proteins or enzymes.
12. The emulsion according to claim 4 , wherein one or more active agents includes a sunscreen ingredient.
13. The emulsion according to claim 1 , wherein the hydroxyl terminated polyorganosiloxane is dimethiconol.
14. The emulsion according to claim 1 , wherein the silicone emulsion is free of amodimethicone.