High alcohol content foaming compositions with silicone-based surfactants
This invention relates to a “high lower alcohol content” (>40% v/v of a C 1-4 alcohol) liquid composition able to be dispensed as a stable foam with the use of non-propellant foam dispensing devices from non-pressurized containers. The liquid compositions comprise an alcohol, C 1-4 (>40% v/v), a silicone-based surfactant of at least 0.001% by weight to prepare a foamable composition, 0-10% w/w of additional minor components added to obtain the desired performance (a foamable composition), and the balance being purified water. The compositions may include emulsifier-emollients and moisturizers, secondary surfactants, foam stabilizers, fragrances, antimicrobial agents, other type of medicinal ingredients, and the like ingredients or additives or combinations thereof commonly added to alcohol gels or foams, aerosol compositions or to toiletries, cosmetics, pharmaceuticals and the like.
1. A foamable alcohol composition, comprising;
a) at least one C 1-4 alcohol, or mixtures thereof, present in an amount greater than 40% v/v of the total composition;
b) at least one effective physiologically acceptable silicone-based surface active agent, which includes a lipophilic chain containing a silicone backbone, for foaming present in an amount of at least 0.01% by weight of the total composition; and
c) water present in an amount to balance the total composition to 100% by weight, said alcohol composition optionally including no more than 1% by weight of at least one additional surfactant for adjusting properties of the foam produced from the composition, wherein the alcohol composition is mixed with air at low pressure to form a foam.
2. The composition according to claim 1 wherein the effective silicone-based surface active agent for foaming is physiologically compatible, and wherein the silicone-based surfactant is selected from the group consisting of silicone ethoxylates, silicone glycerol esters, silicone amine oxides, silicone acetylenic alcohol, silicone carboxylates, silicone sulphates, silicone phosphates, silicone imidazole quats, silicone amino quats, silicone phosphate esters, silicone carbohydrates, silicone isethionates, silicone sulfonates, silicone betaines, silicone alkyl quats, silicone amino propionates, silicone esters, silicone polyamides, and silicone hydrocarbon surfactants.
3. The composition according to claim 1 , wherein the effective silicone-based surface active agent is a physiologically acceptable silicone-based surface active agent selected from the group consisting of bis-PEG-[10-20] dimethicones, 3-(3-hydroxypropyl)-heptamethyltrisiloxane ethoxylated acetate, polyether-modified polysiloxanes, polysiloxane betaine and mixtures thereof from 0.01% to about 10.0% by weight of the total composition.
4. The composition according to claim 1 , wherein the silicone-based surface active agent is selected from the group consisting of PEG-8 dimethicone, PEG-17 dimethicone, bis-PEG-12 dimethicone, bis-PEG-17 dimethicone, bis-PEG/PPG 18/6 dimethicone, bis-PEG/PPG 15/15 dimethicone, bis-PEG-20 dimethicone and combinations thereof.
5. The composition according to claim 1 , wherein the silicone-based surfactant is a polyether-modified polysiloxane.
6. The composition according to claim 1 , further including said at least one additional surfactant for adjusting properties of the foam produced from the composition.
7. The composition according to claim 6 wherein the additional surfactant is selected from the group consisting of alkylglucosides, a poly(ethoxylated and/or propoxylated)alcohol, a poly(ethoxylated and/or propoxylated)ester, an alkenyl alcohol, an ester of a polyhydric alcohol, an ether of a polyhydric alcohol, an ester of a polyalkoxylated polyhydric alcohol, an ether of a polyalkoxylated polyhydric alcohol, a sorbitan fatty acid ester, a polyalkoxylated sorbitan fatty acid ester, a betaine, a sulfobetaine, an imidazoline, an amino acid, a lecithin, a phosphatide, an amine oxide, a sulfoxide and mixtures thereof.
8. The composition according to claim 7 wherein the additional surfactant is a betaine.
9. The composition according to claim 7 wherein the additional surfactant is an alkylglucoside.
10. The composition according to claim 1 further including a foam stabilizing agent present in an amount up to about 10% by weight of the total composition.
11. The composition according to claim 10 wherein the foam stabilizing agent is selected from the group consisting of
lactic acid esters of monoglycerides,
cationic emulsifiers,
quaternary ammonium compounds,
triquaternized stearic phospholipid complex,
hydroxystearamide propyltriamine salts,
lactic acid monoglycerides,
food emulsifiers selected from the group consisting of glyceryl monostearate, propylene glycol monostearate, and sodium stearoyl lactylate,
cetyl betaine,
glycolether,
butyleneglycol,
silicone wax,
an encapsulated oil,
microcapsule mineral oil,
and combinations thereof.
12. The composition according to claim 10 wherein the foam stabilizing agent is selected from the group consisting of glycolether, glycerine, butyleneglycol, behentrimonium chloride, cetrimonium chloride and combinations thereof.
13. The composition according to claim 1 further including one or more moisturizers, emollients, lipid layer enhancers or combinations thereof selected from the group consisting of
lanolin,
vinyl alcohol,
polyvinyl pyrrolidone,
polyols selected from the group consisting of glycerol, propylene glycol, butyleneglycol, glyceryl oleate and sorbitol,
cocoglucoside,
a fatty alcohol selected from the group consisting of cetyl alcohol, stearyl alcohol, lauryl alcohol, myristyl alcohol and palmityl alcohol,
ceteareth 20,
an alkylglucoside,
mixtures of alkylglucoside and glyceryl oleate,
PEG-200 hydrogenated glyceryl palmate,
dihydroxypropyl PEG-5 linoleammonium chloride,
PEG-7 glyceryl cocoate,
and combinations thereof, present in an amount up to about 5% by weight of the total composition.
14. The composition according to claim 1 further comprising an acid or a base to adjust a pH of the composition to a preselected pH present in an amount from about 0.05 to about 0.5% by weight of the total composition.
15. The composition according to claim 1 further including a preservative in an amount from about 0.01 to about 5% by weight of the total composition.
16. The composition according to claim 1 including an antimicrobial agent.
17. The composition according to claim 16 wherein the antimicrobial agent is selected from the group consisting of chlorhexidine salts, iodine, complexed forms of iodine, parachlorometaxylenol, triclosan, hexachlorophene, a phenol, a surfactant having a long chain hydrophobic group and a quaternary group, hydrogen peroxide, silver, a silver salt, silver oxide, behenyl alcohol, and mixtures thereof.
18. The composition claim 1 further comprising constituents selected from the group consisting of organic gums and colloids, lower alkanolamides of higher fatty acids, short chain diols and/or triols, fragrance, coloring matter, ultraviolet absorbers, buffers, conditioning agents, antioxidants, bactericides and medicinally active ingredients, and combinations thereof.
19. The composition according to claim 1 stored in an unpressurized dispenser having a dispenser pump for mixing the composition with air and dispensing foam therefrom.