Freeze-thaw stable water-in-oil emulsion cleaner and/or polish compositions
Water-in-oil (W/O) emulsion compositions having freeze-thaw stability are provided which include water, at least one hydrocarbon solvent, at least one nonionic emulsifier, and at least one freeze-thaw stabilizer which either prevents breaking of the emulsion after a freeze-thaw cycle or enables the emulsion to be re-formed following breaking after a freeze-thaw cycle by simple shaking of the emulsion composition. Preferred freeze-thaw stabilizers are polyols (e.g., glycerin), sugars (e.g., sucrose), polar aprotic solvents (e.g., dimethyl sulfoxide) and amphoteric compounds (e.g., lauryl dimethyl amine oxide). The freeze-thaw stabilizers are particularly useful in furniture care, shoe care and auto care cleaning and/or polishing products including therein water, hydrocarbon solvent(s), nonionic emulsifier(s) and additives, such as film former(s), surfactant(s), fragrance component(s) and preservative(s).
1 . A freeze-thaw stable, water-in-oil (W/O) emulsion cleaning and/or polish composition comprising
(a) at least one hydrocarbon solvent including at least one alkane hydrocarbon,
(b) about 0.01 to about 1 wt. % of at least one freeze-thaw stabilizer including one or more of a polyol, sugar, polar aprotic solvent, and amphoteric compound,
(c) at least one nonionic emulsifier having an HLB value of about 2 to about 6, and
(d) water,
wherein (a), (b), (c) and (d) are present in sufficient amounts to form a W/O emulsion composition in which a water phase is uniformly dispersed in an oil phase,
wherein said at least one freeze-thaw stabilizer is present in an amount sufficient to provide freeze-thaw stability to said composition by either (1) preventing said emulsion composition from breaking upon being subjected to a freeze-thaw cycle or (2) providing by shaking of the emulsion composition re-formation of the emulsion composition following breaking in a freeze-thaw cycle, and
wherein said cleaning and/or polish composition has an easier wipeout as compared to said cleaning and/or polish composition in absence of said freeze-thaw stabilizer.
2 . The W/O emulsion cleaning and/or polish composition of claim 1 , wherein said at least one freeze-thaw stabilizer is one or more of glycerin, sorbitol, ethylene glycol, maltitol, sucrose, glucose, dimethyl sulfoxide and lauryl dimethyl amine oxide.
3 . The W/O emulsion cleaning and/or polish composition of claim 1 , wherein said hydrocarbon solvent is a saturated or unsaturated hydrocarbon solvent.
4 . The W/O emulsion cleaning and/or polish composition of claim 1 , wherein said at least one hydrocarbon solvent is present in an amount of about 3 to about 40 wt. %; said at least one nonionic emulsifier is present in an amount of about 0.01 to about 5 wt. %; said water is present in a balance for said composition to equal 100 wt. %.
5 . The W/O emulsion cleaning and/or polish composition of claim 1 , wherein said composition is included in a furniture care product, a shoe care product or an auto care product.
6 . A freeze-thaw stable furniture care, shoe care or auto care product comprising
(a) at least one hydrocarbon solvent including at least one alkane hydrocarbon;
(b) at least one nonionic emulsifier having an HLB value of about 2 to about 6;
(c) about 0.01 to about 1 wt. % of at least one freeze-thaw stabilizer including one or more of a polyol, sugar, polar aprotic solvent, and amphoteric surfactant;
(d) at least one film-former component selected from silicones and waxes;
(e) one or more of a film-former component, surfactant, solvent, fragrance component, preservative, and colorant; and
(f) water;
wherein (a), (b), (c), (d), and (e) and (f) are present in sufficient amounts to form a W/O emulsion composition in which a water phase is uniformly dispersed in an oil phase;
wherein said at least one freeze-thaw stabilizer is present in an amount sufficient to provide freeze-thaw stability to said product by either (1) preventing said emulsion composition from breaking upon being subjected to a freeze-thaw cycle or (2) providing by shaking of the emulsion composition re-formation of the emulsion composition following breaking in a freeze-thaw cycle; and
wherein said product has an easier wipeout as compared to said product in absence of said freeze-thaw stabilizer.
7 . The product of claim 6 , wherein said at least one freeze-thaw stabilizer is one or more of glycerin, sorbitol, ethylene glycol, maltitol, sucrose, glucose, dimethyl sulfoxide, and lauryl dimethyl amine oxide.
8 . The product of claim 6 , wherein said hydrocarbon solvent is a saturated or unsaturated hydrocarbon solvent.
9 . The product of claim 6 , wherein said at least one hydrocarbon solvent is present in an amount of about 3 to about 40 wt. %; said at least one nonionic emulsifier is present in an amount of about 0.01 to about 5 wt. %; component of (e) is present in an amount of about 0.001 to about 20 wt. %; and said water is present in a balance for said product to equal 100 wt. %.
10 . A freeze-thaw stable aerosol furniture care, shoe care or auto care product consisting of
(a) a propellant including compressed gas or LPG propellant;
(b) a freeze-thaw stable water-in-oil (W/O) emulsion composed of
(1) at least one hydrocarbon solvent including at least one alkane hydrocarbon;
(2) at least one nonionic emulsifier having an HLB value of about 2 to about 6;
(3) about 0.01 to about 1 wt. % of at least one freeze-thaw stabilizer including one or more of a polyol, sugar, polar aprotic solvent and amphoteric surfactant;
(4) water; and
(5) optionally, one or more of a film-former, solvent, surfactant, fragrance component, preservative, and colorant;
wherein said propellant and said W/O emulsion are present in amounts to total 100 wt. %;
wherein said freeze-thaw stabilizer is present in a sufficient amount to provide freeze-thaw stability to said product by either (1) preventing said emulsion from breaking upon being subjected to a freeze-thaw cycle, or (2) enabling said W/O emulsion to be re-formed by shaking following breaking in a freeze-thaw cycle; and
wherein said product has an easier wipeout as compared to said product in absence of said freeze-thaw stabilizer.
11 . The product of claim 10 , wherein said at least one freeze-thaw stabilizer is one or more of a glycerin, ethylene glycol, sorbitol, maltitol, sucrose, glucose, dimethyl sulfoxide and lauryl dimethyl amine oxide.
12 . The product of claim 10 , wherein said hydrocarbon solvent is a saturated or unsaturated hydrocarbon solvent.
13 . The product of claim 10 , wherein said propellant is present in an amount of about 0.1 to about 25 wt. %; said at least one hydrocarbon solvent is present in an amount of about 3 to about 40 wt. %; said at least one nonionic emulsifier is present in an amount of about 0.01 to about 5 wt. %; optional component of (5) is present in an amount of about 0.001 to about 20 wt. %; and said water is present in a balance for said product to equal 100 wt. %.