METHOD OF STABILIZING A POLYSILOXANE EMULSION AND COMPOSITIONS CONTAINING STABILIZED EMULSIONS
A method of stabilizing an emulsion containing a polysiloxane and one or more surfactants comprising adding an effective amount of dispersion containing a DADMAC/acrylamide copolymer and one or more sulfate salts into said emulsion is disclosed. An emulsion/cosmetically acceptable emulsion comprising a polysiloxane, at least one surfactant, and a dispersion containing DADMAC/acrylamide copolymer and one or more sulfate salts is also disclosed.
1 . A method of stabilizing an emulsion containing a polysiloxane and one or more surfactants comprising adding an effective amount of dispersion containing a DADMAC/acrylamide copolymer and one or more sulfate salts into said emulsion.
2 . The method of claim 1 wherein said copolymer has from about 70% moles of acrylamide and about 30% moles of DADMAC.
3 . The method of claim 1 wherein said DADMAC/acrylamide copolymer has a weight average molecular weight of from about 1,000,000 to about 4,000,000
4 . The method of claim 1 wherein said effective amount is from about 0.01% to about 1% weight based upon the amount of polymer actives in the composition.
5 . The method of claim 1 wherein the ratio between surfactant and copolymer is about 18:1 to about 50:1.
6 . The method of claim 1 wherein the surfactant is selected from the group consisting of: sodium lauryl ether sulfate, sodium lauryl ether sulfate, sodium lauryl sulfate, cocamidopropyl betaine, and a combination thereof.
7 . The method of claim 1 wherein said sulfate salts are ammonium sulfate, sodium sulfate, or a combination thereof.
8 . The method of claim 1 wherein said emulsion is used to treat hair, skin and other external body treatments.
9 . The method of claim 1 wherein said polysiloxane is a polydimethylsiloxane.
10 . A cosmetically acceptable emulsion comprising a polysiloxane, at least one surfactant, and a dispersion containing DADMAC/acrylamide copolymer and one or more sulfate salts.
11 . The cosmetically acceptable emulsion of claim 10 further comprising one or more cosmetically acceptable excipients.
12 . The cosmetically acceptable emulsion of claim 11 wherein the excipients are selected from the group consisting of: water, saccharides, surface active agents, humectants, petrolatum, mineral oil, fatty alcohols, fatty ester emollients, waxes and silicone-containing waxes, silicone oil, silicone fluid, silicone surfactants, volatile hydrocarbon oils, quaternary nitrogen compounds, amine functionalized silicones, conditioning polymers, rheology modifiers, antioxidants, sunscreen active agents, di-long chain amines from about C 10 to C 22 , long chain fatty amines from about C 10 to C 22 , fatty alcohols, ethoxylated fatty alcohols, and di-tail phospholipids.
13 . The cosmetically acceptable emulsion of claim 10 is a hair cleaner.
14 . The cosmetically acceptable emulsion of claim 10 wherein said copolymer has from about 70% moles of acrylamide and about 30% moles of DADMAC.
15 . The cosmetically acceptable emulsion of claim 10 wherein said DADMAC/acrylamide copolymer has a weight average molecular weight of from about 1,000,000 to about 4,000,000
16 . The cosmetically acceptable emulsion of claim 10 wherein said effective amount is about 0.01% to about 1% weight based upon the amount of polymer actives in the composition.
17 . The cosmetically acceptable emulsion of claim 10 wherein the ratio between surfactant and copolymer is from about 18:1 to about 50:1.
18 . The cosmetically acceptable emulsion of claim 10 wherein the surfactant is selected from the group consisting of: sodium lauryl ether sulfate, sodium lauryl ether sulfate, sodium lauryl sulfate, cocamidopropyl betaine, and a combination thereof.
19 . The cosmetically acceptable emulsion of claim 10 wherein said sulfate salts are ammonium sulfate, sodium sulfate, or a combination thereof.
20 . The cosmetically acceptable emulsion of claim 10 wherein said polysiloxane is a polydimethylsiloxane.
21 . An emulsion comprising a polysiloxane, at least one surfactant, and a dispersion containing DADMAC/acrylamide copolymer and one or more sulfate salts.