High foaming high gloss tire shine

Abstract

This invention provides a tire brightener formulation comprising a water-in-water silicone emulsion, a foaming and wetting agent, a surfactant, a pH-dependent rheology modifier, and a solvent comprising the majority of the weight of the formulation. This sprayable tire brightener formulation provides tire cleaning and forms a uniform and high-gloss coating on the treated tire surface.

Description

[0001] Related applications This application is a non-provisional application and claims priority to U.S. Provisional Application Serial No. 63 / 778,628, filed March 27, 2025, the contents of which are incorporated herein by reference. Technical Field

[0002] This invention generally relates to tire dressing compositions and their uses, and more particularly to such compositions suitable for application to tires of various vehicles to provide a durable, high-gloss coating. Background Technology

[0003] Over time, tires can become dull, losing their original appeal and / or shine. The automotive care industry uses tire shine products to help restore tires to their original appearance and / or increase the desired gloss level. These tire shine products are typically solvent-based or water-based. Water-based tire shine products are more commonly used because they are easier to apply, easier to clean if sprayed on garage floors or driveways, and can add the desired shine to the tire surface. These tire shine products typically contain surfactants to remove road dirt and dust from tires, as well as silicone chemicals of varying viscosities to control gloss and durability. Some representative tire shine products in this category include atomizing foaming water-based products. When these products are applied to the tire, foam is sprayed onto the surface, initiating the cleaning process. Subsequently, silicone forms a layer on the surface, creating a glossy coating. However, when using this type of water-based product, the coating can quickly diminish due to the centrifugal motion of the tire, causing the product to sling from the tire surface onto the car body (or road surface). Once this happens, the tire often reverts to a dull, weathered appearance. Therefore, there is a need for a high-foaming, atomized water-based tire brightener product that can effectively clean tires and maintain the desired shine for a long time, while minimizing or eliminating splashing.

[0004] Typical tire brightener compositions are blends of a brightener component and a hydrocarbon solvent, or conventional oil-in-water emulsion systems based on the brightener component, to form a high-gloss coating. The most important design and performance characteristics observed in optimized spray-applied commonly used tire brightener compositions are high gloss and wettability on tires, forming a uniform, high-gloss coating on the treated tire surface.

[0005] For example, traditionally, dispersions of silicone fluids in petroleum distillates or conventional oil-in-water silicone emulsion systems with a milky or opaque appearance are typically used to restore the aesthetic, glossy, shiny, and like-new look of tire surfaces. Generally, conventional tire brightener formulations used for brightening and appearance applications have limited adhesion to tire rubber. Ideally, the product should possess long-term performance characteristics capable of resisting car wash agents and various weather conditions, such as rain and storms. Unfortunately, conventional products remain difficult for consumers to apply and fail to provide the desired performance balance. To date, tire brightener products have involved trade-offs in performance: low-viscosity film-forming polymers are susceptible to weather conditions, sagging and becoming sticky during drying; while high-molecular-weight film-forming polymers are prone to brittleness and delamination.

[0006] Therefore, there is a need for a tire brightener composition with a suitable consistency for application to the tire surface and durability against climate and detergents. There is also a need for a method of applying such a composition to provide a high-gloss, protective brightener coating on the tire surface. Summary of the Invention

[0007] This invention provides a tire brightener formulation comprising a water-in-water silicone emulsion, a foaming and wetting agent, a surfactant, a pH-dependent rheology modifier, and a solvent comprising the majority of the weight of the formulation. This sprayable tire brightener formulation provides tire cleaning and forms a uniform and high-gloss coating on the treated tire surface.

[0008] This formulation removes dirt from tire surfaces with little or no manual scrubbing, resulting in a high-gloss finish. Attached Figure Description

[0009] The invention will be described in more detail with reference to the following accompanying drawings, which depict exemplary aspects of the invention.

[0010] Figure 1A-1D It is a series of photos, namely: dry and dirty tires ( Figure 1A A tire in which the formulation of this invention is sprayed twice in a foam state onto the tire sidewall ( ), Figure 1B The foam burst a few minutes later. Figure 1C And the formation of a high-gloss coating on the tire sidewall one hour after application of the formulation of the present invention. Figure 1D ); Figure 2 yes Figure 1C The enlarged photo of the tire shown demonstrates that after a few minutes, the debris on the tire sidewall can be removed without manual wiping and is visible on top of the foam. Figure 3A A photograph of a tire before the application of the formulation of the present invention; and Figure 3B yes Figure 3A The photo shows the tires after they have been sprayed with foam and dried, revealing a glossy, high-gloss finish.

[0011] Detailed description of the preferred implementation scheme This invention relates to a novel atomized surfactant polymer water-based tire brightener composition. The unique atomized spraying allows the product to reach the different textured surfaces of the tire. The surfactant promotes the generation of abundant foam and ensures sufficient contact between the product and the tire, thereby achieving adequate tire cleaning. The surfactant / polymer combination helps the silicone adhere evenly and diffuse across the tire surface, thus limiting product splashing. This surfactant / polymer combination also allows the user to achieve the desired gloss level. Using such tire brighteners reduces product dripping from the tire surface, thereby reducing post-cleaning mess.

[0012] It should be understood that when a numerical range is provided, such as a range of weight percentages of the components of a composition, the range includes not only the endpoints of the range but also the intermediate values ​​of the range that are explicitly included within the range, and the intermediate values ​​are distinguished by the last significant digit of the number. For example, a range of 1 to 4 should include 1-2, 1-3, 2-4, 3-4, and 1-4.

[0013] Unless otherwise defined, all technical and scientific terms used herein have the meanings commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0014] Unless otherwise expressly stated or as the context suggests, the following terms are used herein.

[0015] The singular forms “a,” “an,” and “the” used in this specification and appended claims shall also include the plural forms, unless the context clearly specifies otherwise.

[0016] Furthermore, the use of “and / or” in this document refers to and covers any and all possible combinations of one or more related listed items, as well as cases where no combination is available in an alternative interpretation (“or”).

[0017] As used herein, “high gloss” in the case of the dry tire brightener of the present invention means a surface gloss of at least 55 gloss units (GU) at 20° according to ASTM D523.

[0018] As used herein, “high foam” in the case of applying the tire brightener of the present invention means a foam volume greater than or equal to 600 mL as measured by a laboratory foam beaker test.

[0019] The tire brightener of the present invention has the property of generating a large amount of foam, which adheres to the horizontal tire sidewall surface and has sufficient surface activity to remove road dirt and dust from the tire sidewall with only a small amount or no manual pressure, and provides a clean, high-gloss effect to the tire surface.

[0020] The tire brightener composition of the present invention achieves these properties by comprising a water-in-water silicone emulsion. The water-in-water silicone emulsions used herein can be readily formed using conventional techniques and are commercially available. Suitable water-in-water silicone emulsions used herein are described in detail, for example, US 4,221,688, US 4,504,549, and 4,535,109. According to the present invention, a typical water-in-water silicone emulsion has a viscosity of 50 to 3,000,000 cSt. In some embodiments of the invention, the silicone is an elastomer. The emulsion contains 1% to 90% silicone and contains a stabilizing surfactant and water as the main phase. Upon drying, a hydrophobic film is formed, which presents a wet appearance to the human eye under normal conditions without the aid of auxiliary equipment. Typically, the total content of the water-in-water silicone emulsion is 1% to 80%.

[0021] In the table below or in the appended claims, water used as a carrier for the emulsion or other components is not included in the total water content. The water-in-silicone emulsions used herein typically contain 0.5% to 20% by weight of a cationic or anionic emulsifier as the primary emulsifier, and the dispersed phase contains up to 90% by weight of silicone (here synonymous with siloxane). This siloxane is liquid at 25°C and has a unit according to formula (I): R 1 n SiO (4-n) / 2 (I) Where R 1 It is a C1-C6 alkyl or hydroxyl or C1-C6 alkylhydroxyl, with an n value of 0 to 3, and the cationic or anionic emulsifier does not contain halogenated counterions.

[0022] Other siloxanes used in reactive water-in-silicone emulsions include straight-chain siloxanes of general formula (II): R 2 —(SiO(R 2 )2) n —(SiO(R 3 ) a R 2 2−a ) z —SiR 2 3(II) Where R 2 For C1-C 20 Alkyl, C2-C 18 Alkyl or C6-C20 Alkyl, R 3 For siloxane side chains (III): -O-(SiO(R 2 )2) n SiR 2 3(III) Where n is an integer from 0 to 100,000; a is an integer from 0 to 2 (inclusive); and z is an integer from 0 to 100 (inclusive).

[0023] The reactive siloxane emulsion has a dynamic viscosity of 1 to 1,000,000 mPa·s at 25°C. Exemplary reactive siloxanes include polydialkylsiloxanes; polydimethylsiloxanes; polydimethylpolymethylphenylsiloxanes, such as cyclic polydimethylsiloxanes; linear siloxanes, such as α,ω-silanol-terminated polydimethylsiloxanes, α,ω-trimethylsilyl-terminated polydimethylsiloxanes, dimethylsiloxane-methylphenylsiloxane copolymers, and dimethylsiloxane-methylalkyl (C... 12-18 Siloxane copolymers; branched siloxane polymers; and vinyl dimethylsilyl-terminated polydimethylsiloxanes; or combinations thereof. Cyclic polydimethylsiloxanes as used herein include octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane.

[0024] Cationic surfactants are used to emulsify reactive siloxanes. Examples of suitable cationic surfactants include fatty acid methylammonium methosulphate, fatty acid methylammonium ethyl sulfate, and fatty acid methylammonium acetate. Other suitable surfactants used herein include, exemplarily, nonionic ethoxylated fluorinated surfactants, polyether-modified polydimethylsiloxanes, polyether-modified polymethylalkylsiloxanes, aralkyl-modified polymethylalkylsiloxanes, polyester-modified hydroxyl-functionalized polydimethylsiloxanes, acryloyl-functionalized polyester-modified polydimethylsiloxanes, polyether polyester-modified hydroxyl-functionalized polydimethylsiloxanes, polyacrylate solutions, fluorinated polyacrylate solutions, polymeric fluorinated ethoxylated alcohols, ethoxylated fatty acids, sorbitan esters, ethoxylated castor oil, alkyl polysaccharides, sorbitan monostearate, sorbitan monolaurate, sorbitan oleate, polyoxyethylene sorbitan, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbitan monooleate surfactants; or anionic phosphonic fluorinated phosphates, aliphatic phosphates; or cationic ethoxylated fatty ammonium ethyl sulfates, ethoxylated alkylamine surfactants. If a surfactant is present, its content is up to 5% of the total weight; in other embodiments, its content is from 0.05% to 1% of the total weight.

[0025] Pre-formed water-in-silicone emulsions of amino-functionalized silicones are also commercially available.

[0026] In some embodiments, the tire brightener composition of the present invention comprises a wetting agent in an amount that imparts a high gloss to the tire surface brightener coating produced by the composition. Examples of wetting agents used herein include amphoteric polyfluoroalkyl betaine surfactants, nonionic polymeric fluorinated surfactants, anionic phosphonic fluorinated surfactants, nonionic ethoxylated fluorinated surfactants, sodium lauryl ether sulfate, sodium dodecyl sulfate, and C. 8-28 Alkyl betaine and C 8-28 Alkylamidobetaine; Decyl glucoside, cocamidopropylamine oxide, sodium cocamidopropyl acetate, C 8-16 Alkyl polysaccharide glycosides, linear alcohol ethoxylates, or combinations thereof. Typically, the wetting agent comprises 0% to 40% of the total weight, while in some other embodiments, it comprises 0% to 60% of the total weight. In some embodiments of the invention, a wetting agent or combination of wetting agents is selected that also has foaming properties to form a thick foam layer on the tire sidewall after application. It is also recognized that these wetting agents impart a certain degree of surface activity to the formulation, aiding in the removal of dust, dirt, and common adhering substances from the tire sidewall. Once removed from the tire surface, these detached debris and dirt tend to adhere to the foam.

[0027] In addition to the aforementioned wetting agents, surfactants are also present, which primarily act as cleaning agents to enhance the cleanliness of the tire surface. According to the implementation scheme, the surfactants are selected from various anionic, cationic, nonionic, amphoteric surfactants and alcohol ethoxylated surfactants. According to the implementation plan, the surfactants used herein include, by example, nonionic ethoxylated fluorinated surfactants, polyether-modified polydimethylsiloxanes, polyether-modified polymethylalkylsiloxanes, aralkyl-modified polymethylalkylsiloxanes, polyester-modified hydroxyl-functionalized polydimethylsiloxanes, acryloyl-functionalized polyester-modified polydimethylsiloxanes, polyether polyester-modified hydroxyl-functionalized polydimethylsiloxanes, polyacrylate solutions, fluorinated polyacrylate solutions, polymeric fluorinated ethoxylated alcohols, ethoxylated fatty acids, sorbitan esters, ethoxylated castor oil, alkyl polysaccharides, sorbitan monostearate, sorbitan monolaurate, sorbitan oleate, polyoxyethylene sorbitan, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbitan monooleate surfactants; or anionic phosphonic fluorinated phosphates, aliphatic phosphates; or cationic ethoxylated fatty ammonium ethyl sulfate, ethoxylated alkylamines; or combinations of any of the above compounds. Specific nonionic surfactants used in this article include, for example, lauramidopropylamine oxide, myristamidopropylamine oxide, a mixture of lauramidopropylamine and myristamidopropylamine oxides, and C4O4 with an EO value of 2.5–9. 9-11Ethoxylated alcohols or combinations thereof. In some embodiments of the invention, the C4O value is 2.5. 9-11 Ethoxylated alcohols and one or more C64-hydroxyl groups with an EO value of 6-9 9-11 Ethoxylated alcohols are used in combination. C4 with an EO value of 2.5 and an EO value of 6-9. 9-11 The ratio of ethoxylated alcohol is 0.1-1:1. The content of the second surfactant is 0 to 40% of the total weight. According to some embodiments of the invention, the second surfactant is a C44 surfactant with an EO value of 2.5-12. 9-11 Ethoxylated alcohols, comprising 0 to 50% of the total weight.

[0028] Rheology modifiers typically comprise 0% to 20% of the total weight of the formulations of this invention. Examples of rheology modifiers used herein include carboxymethyl cellulose; or acrylic copolymers, such as alkali-swellable emulsions (ASE) or hydrophobically modified alkali-swellable emulsions (HASE); or high molecular weight starch; or polyvinyl alcohol. In this context, high molecular weight refers to an index-average molecular weight of 50,000 to 1,000,000 Daltons. For details on exemplary rheology modifiers, see U.S. Patent Nos. 5,874,495 and 5,916,967. The addition of rheology modifiers in this invention imparts pH-sensitive thickening properties to the formulations. Consequently, the adhesion of the formulations to vertical surfaces, such as tire sidewalls, is enhanced. This property is commonly referred to in the industry as a “low-splash” formulation. Low-splash tire brighteners refer to products and application techniques that minimize or prevent tire brightener splashing or “splashing” onto the vehicle body, wheels, or fender liners.

[0029] In some embodiments, the tire brightener compositions of the present invention comprise corrosion inhibitors. If a corrosion inhibitor is present, its content is up to 5% of the total weight, and in other embodiments it is from 0.1% to 3% of the total weight. Corrosion inhibitors used herein include, exemplarily, amines and alkali metal carboxylates, phosphate esters, borates, amphoteric compounds such as the betaine-type surfactants and imidazoline compounds described above, molybdates, mercaptobenzothiazoles, benzoates, thioureas, hydrazides, phenols, oxazines, or combinations thereof. If a previously described substance, such as a wetting agent, has corrosion resistance, its amount has been taken into account when calculating the weight percentage.

[0030] In some embodiments, the tire brightener composition of the present invention comprises a fragrance. If a fragrance is present, its content is up to 5% of the total weight, and in other embodiments it is 0.1% to 3% of the total weight. Exemplary fragrances include citrus, rosin, floral, musky, or fruity scents, such as cherry or lemon. Fragrances are generally associated with water-soluble terpenes, esters, and / or ketones.

[0031] In some embodiments, the tire brightener composition of the present invention comprises pigments, such as iron oxide, mica, titanium dioxide, tin oxide, metallic glitter particles, such as colored polyethylene terephthalate, cut metallized foil, such as aluminized PVC film, etc. If pigments are present, their content is up to 1% of the total weight; in other embodiments, it is 0 to 0.5% of the total weight.

[0032] In some embodiments, the tire brightener compositions of the present invention comprise a bactericide. Examples of bactericides used herein include 2-methyl-4-isothiazolin-3-one, methylchloroisothiazolinone / 2-methyl-4-isothiazolin-3-one, 1,2-benzisothiazolinone / dipropylene glycol, sodium hydroxymethylglycinate, polyhexamethylene biguanide hydrochloride, and octanediol / phenoxyethanol / hexanediol. If a bactericide is present, its content is up to 1% of the total weight, and in other embodiments, it is from 0.1% to 0.5% of the total weight.

[0033] In some embodiments, the tire brightener compositions of the present invention comprise ultraviolet (UV) light stabilizers. Examples of UV light stabilizers used herein include benzotriazoles, benzophenones, and organonickel compounds. If a UV light stabilizer is present, its content is up to 2% of the total weight, and in other embodiments, it is from 0.1% to 0.5% of the total weight.

[0034] The components of the tire brightener composition of the present invention are solvated to dissolve in a solvent, thereby obtaining a colored or transparent solution. The solvent of the present invention is ideally water, and in some embodiments, distilled water or even deionized water is used to provide batch consistency. The solvent constitutes a large portion of the weight of the formulation of the present invention. In some embodiments of the present invention, a co-solvent is used to improve solubility and storage stability. The co-solvents used herein are miscible with water and include C1-C6 alcohols, glycols, C3-C6 glycols, furans, acetone, acetonitrile, or combinations thereof. In some embodiments of the present invention, the co-solvent is classified as non-VOC by the U.S. Environmental Protection Agency.

[0035] Vehicle owners can easily apply the tire brightener composition of the present invention to the tire surface using traditional methods such as trigger spray application, aerosol spray, or wiping with a sponge or cloth.

[0036] The tire brightener composition of the present invention has a fully formulated viscosity of 150 to 550 cP measured at 20°C.

[0037] The formulations of the present invention optionally comprise halogenated hydrocarbons or hydrocarbon propellants for use in aerosol delivery systems requiring the compositions of the present invention. Examples of aerosol propellants used herein include difluoroethane, trifluoroethane; alkanes, such as butane, pentane, isobutane; propane; ethers, such as dimethyl ether and diethyl ether; nitrogen; carbon dioxide; and combinations thereof. The resulting compositions comprising the propellants are sealed in conventional metal aerosol cans and sprayed using methods conventional in the art.

[0038] Table 1 provides typical and preferred compositions according to the present invention.

[0039] Table 1. Water-based thickening tire brightener composition of the present invention (amount relative to total weight) The invention is further described in detail below with reference to the following non-limiting embodiments, which are used to further illustrate the preparation of the formulations of the invention and certain properties related to the coatings obtained on the tire surface. Detailed Implementation

[0040] Example 1 The following formulations were identified as capable of forming a durable, high-gloss, waterproof coating. The fully solvent-based formulation is an emulsion, and fragrance has been added to provide an artificial scent.

[0041] Formulation 1 of the present invention .

[0042] Formulation 2 of the present invention .

[0043] Formulation 3 of the present invention .

[0044] Formulation 4 of the present invention .

[0045] Example 2 The formulation 2 of this invention was uniformly sprayed onto various new and used car tires at 20°C and allowed to dry until it was tactile. Test results showed that: like Figure 1A-1D As shown, the foam adheres to all surfaces of the tire's sidewall; like Figure 1C As shown, the dust / road grime on the tire sidewalls has been removed, as evidenced by the brown residue in the foam. Figure 2 yes Figure 1C Enlarged image; Appearance refurbishment transforms tires from their original matte finish to a more natural look. Figure 3A ) becomes a high-gloss surface ( Figure 3B ).

[0046] The patents and publications mentioned in the specification demonstrate the skill of a person skilled in the art to which this invention pertains. These patents and publications are incorporated herein by reference, just as each individual patent or publication is specifically and separately incorporated herein by reference.

[0047] The above description is merely an example of a specific embodiment of the present invention and is not intended to limit its implementation. The following claims (including all their equivalents) are intended to define the scope of the invention.

Claims

1. A tire brightener formulation, comprising: Water-in-silicone emulsion; Foaming and wetting agents; Surfactants; pH-dependent rheology modifiers; and Solvents that constitute the majority of the weight of the preparation.

2. The tire brightener formulation of claim 1, wherein the water-in-silicone emulsion comprises 1% to 80% of the total weight.

3. The tire brightener formulation of claim 1, wherein the foaming and wetting agent accounts for 0 to 40% of the total weight.

4. The tire brightener formulation as described in claim 1, wherein the foaming and wetting agent is an amphoteric polyfluoroalkyl betaine surfactant, a nonionic polymer fluorinated surfactant, an anionic phosphonic fluorinated surfactant, a nonionic ethoxylated fluorinated surfactant, sodium lauryl ether sulfate, sodium dodecyl sulfate, or C. 8-28 Alkyl betaine, C 8-28 Alkylamidobetaine; Decyl glucoside, cocamidopropylamine oxide, sodium cocamidopropyl acetate, C 8-16 Alkyl polysaccharides, straight-chain alcohol ethoxylates, any amphoteric compound or combinations thereof.

5. The tire brightener formulation of claim 1, wherein the foaming and wetting agent comprises C 8-16 Alkyl polysaccharide.

6. The tire brightener formulation of claim 1, wherein the surfactant comprises C with an EO value of 2.5-9. 9-11 Ethoxylated alcohols.

7. The tire brightener formulation of claim 1, wherein the pH-dependent rheology modifier is 0 to 20% of the total weight.

8. The tire brightener formulation as described in claim 1, wherein the pH-dependent rheology modifier is carboxymethyl cellulose, alkali-swellable emulsion, hydrophobically modified alkali-swellable emulsion, high molecular weight starch, or high molecular weight polyvinyl alcohol.

9. The tire brightener formulation of claim 1, further comprising a corrosion inhibitor.

10. The tire brightener formulation of claim 9, wherein the corrosion inhibitor is 0.1% to 3% of the total weight.

11. The tire brightener formulation of claim 9, wherein the corrosion inhibitor is an amine or alkali metal carboxylate, phosphate ester, borate, imidazoline, molybdate, mercaptobenzothiazole, thiourea, hydrazine, phenol, oxazine, or a combination thereof.

12. The tire brightener formulation of claim 1, further comprising at least one bactericide, a UV light inhibitor, a fragrance, or a combination thereof.

13. The tire brightener formulation of claim 1, wherein the viscosity of the formulation measured at 20°C is 150 to 550 cP.

14. Tires, comprising: A coating formed from the dried formulation of claim 1; The coating is located on the tire surface and has a gloss level of up to 55 gloss units.

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