Freeze-thaw stable water-in-oil emulsifying detergent and / or abrasive composition

Abstract

To provide a furniture care, shoe care or car care product having freeze-thaw stability.SOLUTION: The product includes a W / O emulsion containing: water: at least one hydrocarbon solvent; at least one nonionic emulsifier; and at least one freeze-thaw stabilizer. The at least one freeze-thaw stabilizer 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. The at least one freeze-thaw stabilizer is selected from among glycerin, sorbitol, ethylene glycol, maltitol, sucrose, glucose, dimethyl sulfoxide and lauryl dimethyl amine oxide.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD

[0001] The present invention relates to a water-in-oil (W / O) type emulsion composition comprising water, at least one hydrocarbon solvent, at least one nonionic emulsifier, and at least one stabilizer, wherein the stabilizer provides freeze-thaw stability to the W / O type emulsion. When the W / O type emulsion composition is subjected to freeze-thaw cycles, the freeze-thaw stabilizer prevents the emulsion from breaking, or enables re-formation of the emulsion by simply shaking the container containing the emulsion composition. The stable W / O type emulsion composition of the present invention is particularly suitable for use as a cleaning and / or polishing composition, and more specifically, is useful in compositions for cleaning and / or polishing furniture, shoes and automobiles.

BACKGROUND ART

[0002] It is known that when a typical water-in-oil (W / O) type emulsion composition goes through a freeze-thaw cycle, the emulsion usually breaks, that is, the aqueous phase is no longer uniformly dispersed throughout the composition, and a large amount of water remains at the bottom of the container holding the composition. Freeze-thaw cycles typically occur during winter shipping or warehouse storage of products containing emulsion compositions. This is undesirable for consumer products because the composition will no longer be delivered in a form that provides the performance expected by consumers, regardless of whether the composition is delivered in aerosol or non-aerosol forms such as pump sprays, trigger sprays, pour bottles or squeeze bottles.

[0003] A freeze-thaw stable W / O type emulsion preferably can retain the same emulsified structure when the emulsion is subjected to freeze-thaw cycles, or can be re-formed after the emulsion breaks by simply shaking the container holding the emulsion composition. This allows the user to experience the expected and desirable performance of the composition.

[0004] One effort to provide a freeze-thaw stable W / O type emulsion is disclosed in Patent Document 1 relating to cookware lubricant products. A freeze-thaw stable W / O type lecithin emulsion is described, comprising adding a polyol to a W / O type lecithin emulsion system that maintains a critical acid value level by controlling both the components and concentrations in order to suppress or prevent “destructive” conversion to watery oil-in-water heterogenes despite repeated cycles in freeze-thaw conditions. Although a stable W / O type lecithin emulsion was obtained, the strict requirement of a “critical acid value level” as described significantly limits the application of the described method to other emulsion systems.

[0005] Another approach is disclosed in Patent Document 2 relating to cosmetic products. A freeze-thaw stable water-in-silicone emulsion is described. Glycerin was used as a freeze-thaw stabilizer to prevent the emulsion from breaking down after the freeze-thaw cycle. Other polyols, lower alcohols, organic acid salts, or inorganic salts were combined with glycerin to improve freeze-thaw stability. Although a freeze-thaw stable emulsion was obtained using this method, the unique water-in-silicone emulsion is costly and therefore difficult to use in other product categories.

[0006] In the food industry, many W / O (water-in-oil) emulsion processed foods (e.g., whipped toppings, table spreads, sauces) are frozen to improve long-term storage and then thawed for further processing or consumption. Non-patent document 1 evaluated factors affecting the stability of W / O emulsions during freeze-thaw cycles, namely interfacial and network crystallization, and the order of crystallization events (i.e., dispersed phase and continuous phase, or vice versa). Destabilization was reported to be most evident in liquid emulsifiers and in continuous oil phases that solidify before the dispersed phase. Emulsions stable against freeze-thaw cycles were obtained when the emulsifier crystallized at the oil-water interface, or when the continuous phase crystallized after the aqueous phase was dispersed. While this method may provide good guidance for food products, it may not be as effective for other product categories.

[0007] In furniture care products, shoe care products, and car care products, wax and methanol act as stabilizers to create freeze-thaw stable W / O emulsions. However, these freeze-thaw stabilizers usually cannot prevent the emulsion from breaking down, although it can be reformed by simply shaking the container holding such an emulsion. Disadvantages of using wax as a freeze-thaw stabilizer include the accumulation of wax remaining on the treated surface and the need for the user to make greater effort to completely wipe off the composition during application and use. Including methanol in the composition not only raises government regulatory issues in countries such as Russia, but also creates potential safety issues during product manufacturing.

[0008] Therefore, an emulsifying composition that prevents the breakdown of the emulsion or allows the emulsion to be reformed by simply shaking the emulsifying composition after the emulsion has broken down is advantageous in furniture care products, shoe care products, and car care products, as it is easy to wipe off while avoiding regulatory and potential safety issues. The present invention provides a novel W / O type emulsifying composition that is stable against freeze-thaw cycles and can address the problems of the prior art. Furthermore, the present invention provides a novel W / O type emulsifying composition that can be reformed by simply shaking the composition after the emulsion has broken down through a freeze-thaw cycle. [Prior art documents] [Patent Documents]

[0009] [Patent Document 1] U.S. Patent No. 4,073,411 [Patent Document 2] U.S. Patent Application Publication No. 2014 / 0135405 [Non-patent literature]

[0010] [Non-Patent Document 1] S. Ghosh and D. Rousseau, "Freeze-thaw stability of water-in-oil emulsions," Journal of Colloid and Interface Science, Vol. 339, No. 1, 2009, pp. 91-102. [Overview of the project] [Means for solving the problem]

[0011] The present invention relates to a water-in-oil (W / O) emulsion composition comprising water, at least one hydrocarbon solvent, at least one nonionic emulsifier, and at least one freeze-thaw stabilizer, wherein when the W / O emulsion composition is subjected to a freeze-thaw cycle, the breakdown of the emulsion is prevented, or once broken, the emulsion can be reformed by simply shaking the container containing the emulsion composition. Other components may be included in the emulsion composition as described below.

[0012] W / O emulsion compositions are prepared by dispersing an aqueous phase in an oil phase. The oil phase comprises at least one hydrocarbon solvent and at least one nonionic emulsifier. Suitable freeze-thaw stabilizers to be included in the composition are (1) polyols, e.g., glycerin, sorbitol, and maltitol; (2) sugars, e.g., glucose and sucrose; (3) polar aprotic solvents, e.g., dimethyl sulfoxide (DMSO); and (4) amphoteric compounds, e.g., lauryldimethylamine oxide. Depending on the type of freeze-thaw stabilizer used and the composition of the W / O emulsion, lower or higher concentrations of the freeze-thaw stabilizer are used. Generally, higher concentrations of freeze-thaw stabilizers are used to prevent the breakdown of the emulsion, while lower concentrations allow the emulsion to be reformed by simply shaking the container holding the emulsion composition. In the commercial world, such lower concentrations are usually preferred by businesses due to their lower cost. If the concentration of the freeze-thaw stabilizer is too low, the emulsified composition will lose its freeze-thaw stability and will not be able to reform the emulsion even with a simple shake.

[0013] The W / O type emulsion composition of the present invention is particularly useful in furniture care products, shoe care products, and car care products. Typical furniture care products, shoe care products, and car care products containing a W / O type emulsion as part thereof include water, at least one hydrocarbon solvent, at least one nonionic emulsifier, at least one freeze-thaw stabilizer, and optionally one or more of the following: a film-forming agent (e.g., silicone oil), a fragrance component, a preservative, or a conventional additive for inclusion in furniture care, shoe care, and car care cleaning and / or polishing compositions. [Brief explanation of the drawing]

[0014] [Figure 1] Figure 1 shows a W / O type emulsion composition before going through the freeze-thaw cycle, without a freeze-thaw stabilizer, i.e., in which the liquid phase is uniformly dispersed throughout the oil phase. [Figure 2] Figure 2 shows that after the W / O type emulsion composition of Figure 1 has gone through a freeze-thaw cycle, the emulsion has broken down, meaning that a portion of the aqueous phase has separated from the oil phase and can be seen at the bottom of the container. [Modes for carrying out the invention]

[0015] Freeze-thaw stable water-in-oil (W / O) emulsion compositions are described. These stable emulsions are provided using one of a type of functional ingredient called a “freeze-thaw stabilizer.” These freeze-thaw stabilizers either prevent the breakdown of the emulsion after exposure to freeze-thaw cycles, or, after breakdown, allow the emulsion to be reformed by simply shaking (i.e., manually or by hand) the container holding the broken emulsion. Figure 1 shows a W / O emulsion composition containing a hydrocarbon solvent, a nonionic emulsifier, and water, but without a freeze-thaw stabilizer, where the aqueous phase is uniformly dispersed in the oil phase, i.e., the emulsion is not broken. Figure 2 shows that after exposure to freeze-thaw cycles, the emulsion has broken, i.e., a portion of the aqueous phase has separated from the emulsion composition and is now present at the bottom of the container. When at least one of the freeze-thaw stabilizers of the present invention is included in a W / O type emulsion composition, depending on the concentration of the freeze-thaw stabilizer, the emulsion will either remain intact even when exposed to freeze-thaw cycles, as shown in Figure 1, or, even if it breaks, it can be reformed as the emulsion shown in Figure 1 by simply shaking the container that holds the emulsion composition, as shown in Figure 2. In either case, consumers can continue to experience the expected performance of the emulsion composition during use.

[0016] Emulsified compositions in which the freeze-thaw stabilizer of the present invention is particularly beneficial when used are furniture care products, shoe care products, and car care products, such as compositions for cleaning and / or polishing furniture, shoes, and automobiles. Furniture care products, shoe care products, and car care products based on W / O emulsions generally comprise water, a hydrocarbon solvent, a nonionic emulsifier, and optionally one or more of the following: film-forming agents, fragrance components, preservatives, and other additives conventionally included in products for cleaning and / or polishing furniture, shoes, and automobiles.

[0017] The freeze-thaw stabilizer of the present invention for inclusion in a W / O emulsion composition includes (a) a polyol (i.e., a compound having at least two hydroxyl groups), such as glycerin, ethylene glycol, sorbitol and maltitol, (b) a saccharide, such as glucose and sucrose, (c) a polar aprotic solvent, such as dimethyl sulfoxide (DMSO), and (d) an amphoteric compound, such as lauryldimethylamine oxide. In general, when a high concentration of the freeze-thaw stabilizer is included in the emulsion composition, the W / O emulsion can be prevented from breaking, while a low concentration of the stabilizer allows the broken emulsion to be reformed by simply shaking the container holding the emulsion composition. If the concentration of the freeze-thaw stabilizer is too low, the emulsion will not be freeze-thaw stable, that is, after the emulsion breaks in a freeze-thaw cycle, the emulsion cannot be reformed even with simple shaking. Accordingly, there is a minimum concentration necessary to enable freeze-thaw stability. The minimum concentration of the freeze-thaw stabilizer may vary depending on the emulsion system. A preferred concentration range for use is from about 0.01 to about 10% by weight of the freeze-thaw stabilizer, a more preferred concentration range is from about 0.1 to about 2% by weight, and the most preferred range is from about 0.1 to about 1% by weight. The freeze-thaw stabilizers may be used alone or in combination.

[0018] As used in the present specification and claims, the weight percent (% by weight) of the total W / O emulsion composition is based on 100% by weight. Unless otherwise specified, the % by weight of a given material is based on the % by weight of the active ingredient of the material.

[0019] Regarding hydrocarbon solvents suitable for use in W / O emulsion compositions, emulsion compositions useful particularly as products for cleaning and / or polishing furniture, shoes, and automobiles are those known to be commonly used in conventional furniture care compositions, shoe care compositions and car care compositions for removing solvent-soluble residues from substrate surfaces. Examples of hydrocarbon solvents useful alone or in combination include, but are not limited to, saturated hydrocarbon solvents (e.g., alkanes) and unsaturated hydrocarbon solvents (e.g., alkenes, alkynes and aromatics).

[0020] Various commercially available saturated hydrocarbon solvents, such as those marketed by ExxonMobil under the trade names "ISOPAR" or "EXXSOL", and the isoparaffinic hydrocarbon solvents marketed by Chevron Phillips under the trade name "SOLTROL", are currently preferred as they have almost no odor. Preferred solvents are those with shorter carbon lengths (i.e., C 10 and below)

[0021] Other suitable saturated hydrocarbon solvents include pentane, hexane, heptane, naphtha, petroleum spirits and mineral oil. Examples of unsaturated hydrocarbon solvents useful alone or in combination include, but are not limited to, turpentine, toluene and xylene.

[0022] Various saturated hydrocarbon solvents and unsaturated hydrocarbon solvents may be utilized alone or in combination. The one or more solvents are preferably present in an amount of from about 3 to about 40% by weight, more preferably from about 5 to about 20% by weight, and most preferably from about 8 to about 12% by weight.

[0023] The W / O type emulsion composition of the present invention, including products for cleaning and / or polishing furniture, shoes and automobiles, comprises at least one nonionic emulsifier for forming an emulsion. An emulsion comprises a stable mixture of two or more mutually immiscible liquids held in suspension by a small proportion of substances called emulsifiers. All W / O type emulsions are characterized by comprising a continuous oil phase and a discontinuous aqueous phase dispersed throughout the continuous oil phase.

[0024] Nonionic emulsifiers suitable for use generally include those used in furniture care products, shoe care products, and automotive care products. Such conventional emulsifiers may be used alone or in combination. Preferred emulsifiers for use have a hydrophilic-lipophilic balance (HLB) value of from about 2 to about 6.

[0025] Examples of nonionic emulsifiers useful alone or in combination include, but are not limited to, sorbitan esters of oleic acid and lauric acid, polyethoxylated sorbitan esters having 20 or fewer ethoxy units, monoglycerides and diglycerides of lipoforming fatty acids, and combinations thereof.

[0026] Examples of adding any commercially available nonionic emulsifiers include those currently marketed by Croda Corporation under the trade names "SPAN" and "TWEEN". Specific examples of such emulsifiers include sorbitan monooleate, sorbitan monolaurate, and sorbitan monopalmitate. Mixtures of the various emulsifiers mentioned above may also be used.

[0027] At least one nonionic emulsifier is present in an amount preferably about 0.01 to about 5% by weight, more preferably about 0.1 to about 2% by weight, and most preferably about 0.1 to about 1% by weight.

[0028] The water component constituting the liquid phase of the emulsion may be deionized water, reverse osmosis water, distilled water, tap water, etc. Water constitutes the remainder based on 100% by weight of the emulsion composition, and is preferably present in an amount of about 10 to less than 100% by weight, more preferably about 50 to about 95% by weight, and most preferably about 70 to about 90% by weight.

[0029] The emulsifying composition of the present invention may also contain one or more specific optional materials. Suitable film-forming agents for use in this invention include silicones and waxes. They can provide enhanced shine / gloss to the surface.

[0030] The silicone useful in this invention is approximately 5 to approximately 5,000 centistokes (cSt) (approximately 5 × 10⁻¹⁰). -6 ~Approx. 5×10 -3 m 2 ( / s), preferably about 100 to 1000 cSt (about 1 × 10⁻¹⁰ -4 ~1 × 10 -3 m 2It contains a low-viscosity silicone fluid having a viscosity of ( / s).

[0031] The silicone useful in the present invention may be substituted with any organic group known in silicone technology. Of particular interest is silicone gum. Silicone gum typically refers to high molecular weight linear polysiloxane or silicone that can be converted from its highly plastic state to a mainly elastic state by crosslinking.

[0032] The silicone component is preferably present in an amount of about 0.1 to about 20% by weight, more preferably about 1 to about 11% by weight, and most preferably about 3 to about 7% by weight. Conventional waxes suitable for use include, but are not limited to, certain synthetic waxes such as microcrystalline wax and petroleum wax, as well as certain natural waxes such as "carnauba" wax. The wax component is present in an amount of about 0.05 to about 2.0% by weight, preferably about 0.05 to about 0.5% by weight, based on the total weight of the emulsified composition.

[0033] The emulsifying composition may also contain, but is not limited to, one or more other known additives, including solvents, surfactants, fragrance components, preservatives, and colorants. A solvent may be added to enhance the cleaning power of the emulsion. Suitable solvents include, but are not limited to, oxygenated solvents such as ethyl alcohol.

[0034] Surfactants may be included to enhance the cleaning power of the emulsion. Examples of suitable surfactants include anionic surfactants, cationic surfactants, and amphoteric surfactants.

[0035] Useful anionic surfactants include, but are not limited to, certain alkali metal alkyl sulfates (e.g., sodium lauryl sulfate) and alkali metal alkyl ether sulfates, sulfosuccinates containing attached polyethylene glycol moieties, and alkylaryl sulfonates. Mixtures of these surfactants may also be used in the present invention.

[0036] Examples of cationic surfactants suitable for use include certain quaternary ammonium compounds such as quaternary ammonium halides and quaternary ammonium sulfate, so-called "fatty" amines that are ethoxylated and have about 2 to about 10 moles of ethylene oxide, and acetate or chloride salts of such amines. Various mixtures or combinations of the aforementioned surfactants may also be used.

[0037] Examples of suitable amphoteric surfactants include, but are not limited to, cocamidopropyl betaine. When an amphoteric surfactant is included in an emulsion, this amphoteric compound may also function as a freeze-thaw stabilizer. Additional freeze-thaw stabilizers may not be necessary to enable freeze-thaw stability.

[0038] Fragrance components are understood to include one of the fragrances or perfumes that impart a desired scent, or a mixture thereof. Conventional fragrance components suitable for use are well known to those skilled in the art and are therefore not described in detail herein. Fragrance components are typically present in an amount effective to impart a desired fragrance intensity, and may be, for example, preferably in the range of about 0.01 to about 10% by weight, more preferably about 0.01 to about 1% by weight, of the emulsified composition.

[0039] Commercially available preservatives may be included to extend the shelf life of the emulsified composition, such as bronopol (2-bromo-2-nitropropane-1,3-diol), which is sold, for example, under the trade names PROTECTOL BN by BASF and BIOBAN BP-PLUS by Dow Chemical Company. The preservative may preferably be present in an amount of about 0.001 to about 5% by weight.

[0040] A furniture care emulsified product, a shoe care emulsified product, or a car care emulsified product comprising at least one freeze-thaw stabilizer of the present invention is aerosol or non-aerosol, such as a pump spray, trigger spray, pour bottle or squeeze bottle.

[0041] Aerosol furniture care products, shoe care products, or car care products include an intermediate composition of a W / O type emulsion composition and a propellant. The propellant may be a compressed gas propellant such as nitrogen, air, carbon dioxide, nitrous oxide, argon, or a mixture thereof, or one or more conventionally known liquids or liquefied petroleum gas (LPG) such as hydrocarbons (e.g., butane, propane, isobutane, and mixtures thereof), dimethyl ether, methyl ethyl ether, etc. One or more propellants are present in the product in an amount of about 0.1 to about 25% by weight, based on the entire aerosol formulation composition. Compressed gas propellants are generally present in a lower range of about 0.1 to about 2% by weight, more preferably about 0.5 to about 1% by weight. LPG propellants are present in a higher range of about 4 to about 25% by weight, more preferably about 6 to about 15% by weight.

[0042] Several base formulations for W / O emulsions are shown below. These are commonly found in furniture care products, shoe care products, and car care products. These base formulations do not contain freeze-thaw stabilizers.

[0043] [Table 1]

[0044] [Table 2]

[0045] [Table 3]

[0046] [Table 4]

[0047] [Table 5]

[0048] The freeze-thaw stabilizer of the present invention was added to the above-mentioned formulation bases A to E at a selected concentration. These test samples were prepared by filling glass containers with the base formulations and the selected freeze-thaw stabilizer. Next, the test samples were stored in a freezer at -18°C for at least 12 hours. Next, the test samples were thawed at room temperature (i.e., about 22°C) for at least 6 hours, or until the temperature of the test samples reached room temperature. The test samples were examined. When the emulsion broke, it was checked whether the emulsion could be reformed by shaking the test sample by hand. The test results are summarized in Table 1 below.

[0049] [Table 6]

[0050] Test samples 1-8 were designed to demonstrate the effectiveness of the freeze-thaw stabilizer of the present invention. These test samples contained the formulation of base A. Base A contains all three essential components necessary for the formation of a W / O emulsion. Base A is not freeze-thaw stable. After base A went through a freeze-thaw cycle, the emulsion broke down and could not be reformed even by shaking the container. However, freeze-thaw stability was imparted to base A by adding one of the following freeze-thaw stabilizers: glycerin, ethylene glycol, D-sorbitol, sucrose, glucose, DMSO, and lauryldimethylamine oxide.

[0051] Test samples 9-19 were designed to demonstrate that the freeze-thaw stabilizer of the present invention can function in various emulsion systems containing any component. Test samples 9-10 contain formulation B. Formulation B contains 100 cSt silicone as an optional film-forming agent. Although base B is not stable to freeze-thaw cycles, when 1.0 wt% glycerin was added to base B, the emulsion could be reformed by shaking after it had broken down.

[0052] Test samples 11-12 contain formulation of base C. Formulation of base C contains sodium lauryl sulfate as an optional anionic surfactant. Although base C is not stable to freeze-thaw cycles, the addition of 2.0% by weight of glycerin to base C prevented the emulsion from breaking down after the freeze-thaw cycle in test sample 12.

[0053] Test samples 13-14 contain formulation of base D. Formulation of base D contains ethanol as an optional solvent. Although base D is not stable to freeze-thaw cycles, when 1.0 wt% glycerin was added, test sample 14 was able to reform the emulsion by shaking after the emulsion had been broken up.

[0054] Test samples 15-19 contain formulations of base E. Formulation of base E contains two or more hydrocarbon solvents and an optional fragrance. When 0.5 wt% glycerin was added to base E, the emulsion was still broken down after the freeze-thaw test. However, at this same concentration, glycerin enabled freeze-thaw stability for base A (see test number 2). After increasing the concentration of glycerin to 1.0 wt% in the formulation of base E, the emulsion was reformed by a gentle shake. This indicates that for each different emulsion system, the minimum concentration of stabilizer required to reform the emulsion after it has broken down in the freeze-thaw cycle may differ from one another. When the concentration of glycerin was further increased to 3.0 wt% in the formulation of base E, the emulsion was stable after the freeze-thaw cycle. This indicates that there is another critical concentration at which the stabilizer can prevent the breakdown of the emulsion. In test sample 19, two freeze-thaw stabilizers were used together. The solution contained 1.0% by weight of glycerin and 2.0% by weight of D-sorbitol. These freeze-thaw stabilizers prevented the emulsion from breaking down after the freeze-thaw cycle.

[0055] A preferred aerosol formulation example of the present invention is shown below.

[0056] [Table 7]

[0057] The exemplary embodiments disclosed herein are not intended to be exhaustive or to unnecessarily limit the scope of the invention. Exemplary embodiments have been selected and described to illustrate the principles of the invention so that those skilled in the art can carry it out. Various modifications can be made within the scope of the foregoing description, as will be apparent to those skilled in the art. Such modifications, which are within the capabilities of those skilled in the art, form part of the invention and are included in the appended claims.

[0058] This disclosure is also defined by the following section: Item 1. Water-in-oil (W / O) type emulsion composition, (a) at least one hydrocarbon solvent, (b) at least one freeze-thaw stabilizer comprising one or more of a polyol, sugar, polar aprotic solvent, and amphoteric compound, (c) at least one nonionic emulsifier, (d) Water and, (a), (b), (c), and (d) are present in sufficient quantities to form a W / O type emulsion composition in which the aqueous phase is uniformly dispersed in the oil phase. A w / o type emulsion composition wherein the at least one freeze-thaw stabilizer is present in an amount sufficient to (1) prevent the emulsion composition from breaking down when exposed to a freeze-thaw cycle, or (2) to reform the emulsion composition by shaking it after it has broken down in a freeze-thaw cycle.

[0059] Item 2. The W / O type emulsified composition according to Item 1, wherein the at least one freeze-thaw stabilizer is one or more of glycerin, sorbitol, ethylene glycol, maltitol, sucrose, glucose, dimethyl sulfoxide, and lauryldimethylamine oxide.

[0060] Item 3. The W / O type emulsion composition according to Item 1, wherein the hydrocarbon solvent is a saturated hydrocarbon solvent or an unsaturated hydrocarbon solvent. Item 4. The W / O type emulsifying composition according to Item 1, wherein the nonionic emulsifier has an HLB value of about 2 to about 6.

[0061] Item 5. The W / O type emulsion composition according to Item 1, wherein the at least one hydrocarbon solvent is present in an amount of about 3 to about 40% by weight, the at least one freeze-thaw stabilizer is present in an amount of about 0.01 to about 10% by weight, the at least one nonionic emulsifier is present in an amount of about 0.01 to about 5% by weight, and the water is the remainder up to 100% by weight of the composition.

[0062] Item 6. The W / O type emulsifying composition according to Item 1, wherein the composition is included in a furniture care product, a shoe care product, or a car care product. Item 7. Furniture care products, shoe care products, or car care products, (a) at least one hydrocarbon solvent, (b) at least one nonionic emulsifier, (c) At least one freeze-thaw stabilizer comprising one or more of a polyol, sugar, polar aprotic solvent, and amphoteric surfactant, (d) One or more of the following: film-forming agents, surfactants, solvents, fragrance components, preservatives, and colorants, (e) Water and, (a), (b), (c), (d), and (e) are present in sufficient quantities to form a W / O type emulsion composition in which the aqueous phase is uniformly dispersed in the oil phase. A product wherein the at least one freeze-thaw stabilizer is present in an amount sufficient to (1) prevent the emulsified composition from breaking down when exposed to a freeze-thaw cycle, or (2) to reform the emulsified composition by shaking it after it has broken down in a freeze-thaw cycle.

[0063] Item 8. The product according to Item 7, wherein the at least one freeze-thaw stabilizer is one or more of glycerin, sorbitol, ethylene glycol, maltitol, sucrose, glucose, dimethyl sulfoxide, and lauryldimethylamine oxide.

[0064] Item 9. The product according to item 7, wherein the hydrocarbon solvent is a saturated hydrocarbon solvent or an unsaturated hydrocarbon solvent. Item 10. The product according to item 7, wherein the nonionic emulsifier has an HLB value of about 2 to about 6.

[0065] Item 11. The product according to item 7, wherein the at least one hydrocarbon solvent is present in an amount of about 3 to about 40% by weight, the at least one freeze-thaw stabilizer is present in an amount of about 0.01 to about 10% by weight, the at least one nonionic emulsifier is present in an amount of about 0.01 to about 5% by weight, the component of (d) is present in an amount of about 0.001 to about 20% by weight, and the water is the remainder up to 100% by weight of the product.

[0066] Item 12. Aerosol furniture care products, shoe care products, or car care products, (a) A propellant containing compressed gas or LPG propellant, (b) Water in oil (W / O) emulsion, (1) at least one hydrocarbon solvent, (2) At least one nonionic emulsifier having an HLB value of approximately 2 to approximately 6, (3) At least one freeze-thaw stabilizer comprising one or more of polyols, sugars, polar aprotic solvents, and amphoteric surfactants, (4) Water and, (5) An emulsion containing one or more of the following: a film-forming agent, a solvent, a surfactant, a fragrance component, a preservative, and a coloring agent, The propellant and the W / O type emulsion are present in a total amount of 100% by weight. The freeze-thaw stabilizer is present in a sufficient amount to (1) prevent the emulsion from being destroyed when exposed to a freeze-thaw cycle, or (2) allow the W / O type emulsion to be reformed by shaking the W / O type emulsion after it has been destroyed in a freeze-thaw cycle.

[0067] Item 13. The product according to item 12, wherein the at least one freeze-thaw stabilizer is one or more of glycerin, ethylene glycol, sorbitol, maltitol, sucrose, glucose, dimethyl sulfoxide, and lauryldimethylamine oxide.

[0068] Item 14. The product according to item 12, wherein the hydrocarbon solvent is a saturated hydrocarbon solvent or an unsaturated hydrocarbon solvent. Item 15. The product according to item 12, wherein the propellant is present in an amount of about 0.1 to about 25% by weight, the at least one hydrocarbon solvent is present in an amount of about 3 to about 40% by weight, the at least one freeze-thaw stabilizer is present in an amount of about 0.01 to about 10% by weight, the at least one nonionic emulsifier is present in an amount of about 0.01 to about 5% by weight, the optional component of (5) is present in an amount of about 0.001 to about 20% by weight, and the water is the remainder up to 100% by weight of the product.

[0069] Item 16. Furniture care products, shoe care products, or car care products, (a) at least one compressed gas propellant, (b) Water in oil (W / O) emulsion, (1) at least one hydrocarbon solvent comprising at least one alkane hydrocarbon, (2) At least one film-forming component, (3) At least one nonionic emulsifier having an HLB value of approximately 2 to approximately 6, (4) At least one freeze-thaw stabilizer, which is one or more of a polyol, sugar, polar aprotic solvent, and amphoteric surfactant, (5) Water and, (6) A water-in-oil (W / O) emulsion containing optionally a fragrance component, a preservative, a solvent, a surfactant, a colorant, The propellant and the W / O type emulsion are present in an amount of 100% by weight. The W / O type emulsion is a product that does not break down when exposed to a freeze-thaw cycle, or, if a broken emulsion is formed, can be reformed as a W / O type emulsion by shaking the broken emulsion.

[0070] Item 17. The product according to Item 16, wherein the at least one freeze-thaw stabilizer is one or more of glycerin, ethylene glycol, maltitol, sucrose, glucose, dimethyl sulfoxide, and lauryldimethylamine oxide.

[0071] Item 18. The product according to item 16, wherein the at least one compressed gas propellant is present in an amount of about 0.01 to about 2% by weight, the at least one hydrocarbon solvent is present in an amount of about 3 to about 40% by weight, the at least one film-forming component is present in an amount of about 0.05 to about 20% by weight, the at least one freeze / thaw stabilizer is present in an amount of about 0.01 to about 10% by weight, the at least one nonionic emulsifier is present in an amount of about 0.01 to about 5% by weight, and the water is the remainder up to 100% by weight of the product.

Claims

1. A furniture care product, shoe care product, or car care product containing a water-in-oil (W / O) emulsion, wherein the W / O emulsion is (a) at least one hydrocarbon solvent comprising 3 to 40% by weight of at least one alkane hydrocarbon solvent, (b) At least one nonionic emulsifier having an HLB value of 2 to 6, comprising 0.01 to 5% by weight of at least one of sorbitan ester of oleic acid, sorbitan ester of lauric acid, polyethoxylated sorbitan ester having 20 or fewer ethoxy units, monoglycerides of fatty acids, and diglycerides of fatty acids, (c) 0.01 to 10% by weight of at least one freeze-thaw stabilizer selected from glycerin, sorbitol, ethylene glycol, maltitol, sucrose, glucose, dimethyl sulfoxide, and lauryldimethylamine oxide, (d) Optionally, 0.001 to 20% by weight of one or more of the following: a film-forming agent selected from waxes or silicones, an additional surfactant, an additional solvent, a fragrance component, a preservative, and a colorant. (e) water, which is the remainder up to 100% by weight of the W / O type emulsion, (a), (b), (c), (d), and (e) are present in sufficient quantities to form the W / O type emulsion in which the aqueous phase is uniformly dispersed in the oil phase. A product wherein the at least one freeze-thaw stabilizer is present in an amount sufficient to (1) prevent the breakdown of the W / O emulsion when exposed to a freeze-thaw cycle, or (2) to reform the W / O emulsion by shaking it after breakdown in a freeze-thaw cycle.

2. Aerosol furniture care products, shoe care products, or car care products, (a) A propellant containing compressed gas or LPG propellant, (b) Water in oil (W / O) emulsion, (1) At least one hydrocarbon solvent comprising 3 to 40% by weight of at least one alkane hydrocarbon solvent, (2) At least one nonionic emulsifier having an HLB value of 2 to 6, comprising 0.01 to 5% by weight of at least one of sorbitan ester of oleic acid, sorbitan ester of lauric acid, polyethoxylated sorbitan ester having 20 or fewer ethoxy units, monoglycerides of fatty acids, and diglycerides of fatty acids, (3) 0.01 to 10% by weight of at least one freeze-thaw stabilizer selected from glycerin, sorbitol, ethylene glycol, maltitol, sucrose, glucose, dimethyl sulfoxide, and lauryldimethylamine oxide, (4) Optionally, 0.001 to 20% by weight of one or more of the following: a film-forming agent selected from waxes or silicones, an additional solvent, an additional surfactant, a fragrance component, a preservative, and a colorant. (5) The W / O emulsion comprising water, which is the remainder up to 100% by weight of the W / O emulsion, The W / O type emulsion has an aqueous phase uniformly dispersed in the oil phase. The propellant and the W / O type emulsion are present in total in an amount of 100% by weight of the product. The freeze-thaw stabilizer is present in a sufficient amount to (1) prevent the breakdown of the emulsion when exposed to a freeze-thaw cycle, or (2) enable the reformation of the W / O type emulsion by shaking after breakdown in a freeze-thaw cycle.

3. The product according to claim 2, wherein the propellant is present in an amount of 0.1 to 25% by weight of the product.

4. Furniture care products, shoe care products, or car care products, (a) at least one compressed gas propellant, (b) Water in oil (W / O) emulsion, (1) At least one hydrocarbon solvent comprising 3 to 40% by weight of at least one alkane hydrocarbon solvent, (2) At least one film-forming agent selected from 0.05 to 2.0% by weight of wax and 0.1 to 20% by weight of silicone, (3) At least one nonionic emulsifier having an HLB value of 2 to 6, comprising 0.01 to 5% by weight of at least one of sorbitan ester of oleic acid, sorbitan ester of lauric acid, polyethoxylated sorbitan ester having 20 or fewer ethoxy units, monoglycerides of fatty acids, and diglycerides of fatty acids, (4) 0.01 to 10% by weight of at least one freeze-thaw stabilizer selected from glycerin, sorbitol, ethylene glycol, maltitol, sucrose, glucose, dimethyl sulfoxide, and lauryldimethylamine oxide, (5) Optionally, 0.001 to 20% by weight of one or more of the following: fragrance components, preservatives, additional solvents, additional surfactants, and colorants, (6) The W / O emulsion comprising water, which is the remainder up to 100% by weight of the W / O emulsion, The W / O type emulsion has an aqueous phase uniformly dispersed in the oil phase. The propellant and the W / O type emulsion are present in total in an amount of 100% by weight of the product. The freeze-thaw stabilizer is present in a sufficient amount to (1) prevent the breakdown of the emulsion when exposed to a freeze-thaw cycle, or (2) enable the reformation of the W / O type emulsion by shaking after breakdown in a freeze-thaw cycle.

5. The product according to claim 4, wherein the at least one compressed gas propellant is present in an amount of 0.01 to 2% by weight of the product.

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