KR20160086354A - Mesitylene sulfonate compositions and methods thereof - Google Patents

Abstract

The present invention relates to a composition comprising a soluble salt of hypohalite or hypochlorous acid and 2,4,6 mesitylenesulfonate. The composition may comprise a surfactant, a buffer, or a combination thereof. Other adjuvants may also be present. Such a composition may contain, if desired, sodium hydroxide or other soluble hydroxide salt, but it may also contain a high concentration of sodium hydroxide or other soluble < RTI ID = 0.0 > It does not require the inclusion of a hydroxide salt.

Description

METHYLENE SULFONATE COMPOSITIONS AND METHODS THEREOF FIELD OF THE INVENTION < RTI ID = 0.0 >

The present invention relates to a liquid composition comprising hypohalite species, for example, as used in bleaching, cleaning or otherwise treating surfaces. In addition to such compositions, the present invention relates to methods of using such compositions.

Sodium hypochlorite is a highly effective cleaning, bleaching and hygiene treatment formulation widely used in cleaning and sanitizing various hard and soft surfaces in laundry care and the like. While highly effective, sodium hypochlorite tends to degrade over time, and a significant fraction of hypochlorite is lost relatively quickly (e.g., over a period of a few days or weeks). In addition, a number of adjuvants which are desired to be added tend to react rapidly with hypochlorite, further reducing the stability of the formulation, while limiting the choice among other desirable adjuvants.

Due to such inherent stability problems, efforts have been made to increase the stability of hypochlorite-containing compositions by the inclusion of various additives such as sodium hydroxide, phosphate stabilizers and the like. While these efforts have been shown to increase the stability of the resulting liquid compositions, these efforts also often exhibit negative or unwanted side effects. For example, the addition of sodium hydroxide or other soluble strong base hydroxyls to such aqueous liquid compositions greatly increases the pH of aqueous liquid compositions. At such very high pH values, the liquid composition is highly corrosive and can cause damage to the surface to which the liquid composition comes into contact. In addition, the inclusion of such components does not solve the problem of hypochlorite reactivity with other desirable adjuvants.

Thus, it is possible to reduce or minimize unwanted side effects associated with liquid compositions comprising hypohalite active species exhibiting improved stability, particularly with alternative stabilized hypochlorite compositions, and / There remains a need for compositions that can broaden the range of choices available.

One aspect of the invention relates to a liquid composition comprising a soluble salt of at least one of hypohalite or hypohalous acid bleaching components and 2,4,6 mesitylenesulfonate. The inclusion of the soluble salt of 2,4,6 mesitylenesulfonate surprisingly increases the stability of the hypohalite or hypohalous acid bleaching component well beyond the stabilizing effect provided by other previously recognized aryl sulfonate stabilizers .

In another aspect, the invention relates to a liquid composition comprising at least one of a hypohalite or hypohalous acid bleaching component, a soluble salt of a 2,4,6 mesitylenesulfonate, and a buffer.

In another aspect, the invention relates to a liquid composition comprising at least one of a hypohalite or hypohalous acid bleaching component, a soluble salt of 2,4, 6 mesitylenesulfonate, and a surfactant.

Additional features and advantages of the present invention will become apparent to those skilled in the art in view of the detailed description of the preferred embodiments below.

I. Definition

Before describing the present invention in detail, it is to be understood that the invention is not limited to the specifically illustrated system or process parameters, and that the system or process parameters may, of course, vary. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments of the invention only and is not intended to limit the scope of the invention in any way.

All publications, patents, and patent applications cited herein, either individually or in combination, are hereby incorporated by reference in their entirety to the same extent as if each individual publication, patent or patent application was specifically and individually indicated to be incorporated by reference. .

The word "comprising " and " comprising ", as well as " comprising" and " comprising ", are inclusive or non-restrictive and do not exclude additional elements or method steps not listed.

The term " consisting essentially of "limits the scope of the claims to the specified substance or step and to the substance or step that does not materially affect the" underlying novel feature (s) " of the claimed invention.

As used herein, the term "consisting of" excludes any element, step or component not explicitly recited in the claims.

It should be noted that, as used in this specification and the appended claims, the singular forms "a", "an" and "the" include plural referents unless the content clearly dictates otherwise. Thus, for example, reference to "a surfactant" includes one or more of such surfactants.

As used herein, the term "sanitize" means to reduce pollutants in an inanimate environment to a level considered safe in accordance with public health legislation, or to reduce a significant number of bacterial populations for which public health requirements have not been established will be. At least a 99% reduction in the bacterial population within a 24-hour period is considered "significant". The term "disinfecting" can generally refer to the removal of many or all of the pathogenic microorganisms on the surface except for the endogenous spores of the bacteria. The term "sterilization" refers to the complete removal or destruction of all forms of microbial life, and is authorized under applicable regulatory laws that have legal claims as "sanitizers" or have sterilization characteristics or quality.

The term "substrate" as used herein is intended to include any material used to clean the article or surface. Examples of cleaning substrates include, but are not limited to, nonwoven fabrics, sponges, films, and similar materials that may be attached to cleaning tools such as floor mops, handles, or small cleaning tools such as toilet cleaners in some embodiments . In one embodiment, the substrate may be a towel.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although a number of methods and materials similar or equivalent to those described herein can be used in the practice of the present invention, the preferred materials and methods are described herein.

In the present application, an effective amount is generally such amount that is listed as a range or level of component in the following description. Unless otherwise stated, the amounts listed in percent ("wt%") are expressed as weight percentages of specific material present in the reference composition (based on 100 wt% activity) and, unless otherwise noted, Percentages are sufficient water or aqueous carrier to make up 100% of the composition. Note that for very low weight percentages, the term "ppm ", which corresponds to one million parts by weight / weight, may be used and 1.0 wt% corresponds to 10,000 ppm.

II. Introduction

The inventors have surprisingly found that the inclusion of a soluble salt of 2,4,6 mesitylenesulfonate in a liquid composition comprising at least one of hypohalite or hypohalous acid bleaching components comprises a hypohalite or hypohalous acid bleaching component To increase the stability of the cells. The increase in such stability caused by the inclusion of soluble salts of 2,4,6-mesitylenesulfonates surprisingly far exceeds the stabilizing effects provided by other previously used aryl sulfonate stabilizers.

Hypohalite or hypohalous acid bleaching components are typically less stable at lower pH values than at higher pH values. As such, conventional practice has increased the pH of the composition to greater than 12, for example, by adding significant amounts of sodium hydroxide or other strong hydroxide bases to the composition. While these compositions advantageously exhibit increased stability due to higher pHs, these compositions can also cause damage to the surface of certain household articles due to high corrosive pH, as well as damage caused by contact with the tissues of the user or other living organism , Equipment that is used in health care facilities, and negative features that damage the surface of equipment. As a result, it would be highly desirable if a method could be provided to stabilize the hypohalite or hypohalous acid bleaching component without increasing the pH of the composition to such a significant extent. Such stabilization would also be an additional advantage if the reactivity between the adjuvant and hypochlorite could mitigate the reactivity between hypochlorite and various adjuvants not normally included in the hypochlorite-containing liquid composition.

While it is recognized that various aryl sulfonates can provide stabilization benefits to hypohalite bleaching compositions, it is believed that by the soluble salts of 2,4,6 mesitylenesulfonate in such hypohalite or hypohalous acid liquid compositions No one has yet recognized the very good stabilizing effect provided. The stabilizing characteristics of the soluble salts of the described 2,4,6-mesitylenesulfonates far exceed the stabilizing effects of the aryl sulfonates, such as sodium xylene sulfonate, studied above. In other words, although the arylsulfonate can be identified as a class of materials that can act as a hypohalite stabilizer, the soluble salt of 2,4,6-mesitylenesulfonate is present in the liquid composition as hypohalite and hypohalous acid whitening ≪ / RTI > than other aryl sulfonates that have been used to stabilize the < RTI ID = 0.0 >

III. Exemplary liquid compositions

The benefits of using hypohalite or hypohalous acid-containing compositions include, but are not limited to, cleaning, disinfection, sterilization, stain removal, deodorization, fungal removal, toxin and / or allergen treatment, and / . Compositions include, but are not limited to, antimicrobial compositions suitable for contact with food, antimicrobial compositions for treating hard surfaces, antimicrobial compositions for treating articles or other surfaces, versatile detergents, compositions for cleaning dishes, (For example, a cleaning agent for a self-flushing toilet bowl and a hand washing flush toilet), a laundry detergent, and a laundry additive. The compositions may be provided in a variety of forms including, but not limited to, aerosolized forms, concentrated forms, pouches, ready-to-use forms, ready-to-use gels, ready-to-use sprays, .

The present invention also relates to a method of use. In one embodiment, a method of treating a surface includes providing a liquid composition, and contacting the surface with the composition to treat the surface with the composition. In another embodiment, a method of cleaning a surface includes providing a liquid composition, and contacting the surface with the composition to clean the surface with the composition. In another embodiment, a method of bleaching a surface comprises providing a liquid composition, and contacting the surface with the composition to bleach the surface with the composition.

a. Soluble salts of 2,4,6-mesitylenesulfonate

The soluble salt of 2,4,6 mesitylenesulfonate has the formula C ₉ H ₁₁ S0 ₃ ^- M ⁺ , where M ⁺ is a soluble metal ion such as sodium. The soluble salt of 2,4,6 mesitylenesulfonate has the following structure:

The structure of the 2,4,6 mesitylenesulfonate is characterized by a symmetrical substitution pattern around the aromatic ring. Addition of a sulfonate group to 1,3,5-trimethylbenzene (also known as mesitylene) to form 2,4,6 mesylenesulfonate, and formation of a soluble salt of 2,4,6-mesitylenesulfonate Can be achieved by any suitable means.

In one embodiment, the soluble salt of 2,4,6 mesitylenesulfonate is selected from the group consisting of alkali metal salts (e.g. sodium, potassium, lithium, etc.), alkaline earth metal salts (e.g. calcium, Other soluble salts of 4,6 mesitylenesulfonate, or a combination thereof. A particularly preferred example includes sodium 2,4,6 mesitylenesulfonate (2,4,6 SMS). Other alkali metal salts of 2,4,6 mesitylenesulfonates, such as potassium 2,4,6-mesitylene sulfonate, lithium 2,4,6-mesitylene sulfonate, or combinations thereof, may also be suitable for use have.

In one embodiment, the composition comprises from about 0.01% to about 20% by weight of the composition, from about 0.05% to about 10% by weight of the composition, from about 0.1% by weight of the composition of a soluble salt of 2,4,6- To about 8 wt%, or from about 0.1 wt% to about 5 wt% of the composition.

As will be shown in the examples hereafter, surprisingly, the addition of other isomers of mesitylene sulphonate, such as 2,3,5 SMS or 2,4,5 SMS results in the formation of specific isomers 2,4,6 in the liquid hypochlorite- It provides a level of marginality to the same level of bleach retention that appears when adding SMS. Applicants do not wish to be bound by any particular theory, but, as will be described by the following examples, it is believed that the specific interaction of 2,4,6 SMS with surfactant micelles is stronger in the repulsion of hypochlorite from the micelle surface , Leading to a decrease in the rate of reaction of hypochlorite with a wide variety of surfactant types.

Although the aromatic sulfonates (aka aryl sulfonates), and in particular those of aromatic sulfonates other than 2,4,6-SMS, have been described in the art as providing stabilizing effects against hypochlorite solutions, 4,6 SMS has been found to be far superior to the specific stabilizing species of aromatic sulfonates disclosed above. Applicants do not wish to be bound by any particular theory, but it is believed that the net benefit to the stability of hypochlorite through the addition of 2,4,6 SMS to formulations containing hypochlorite, , 4,6 and the intrinsic stability of 2,4,6 SMS itself on interaction between SMS and surfactant micelle. Such interactions can be characterized as chaotropic behavior, which obviously results in the association of 2,4,6, and 6,7 SMS with micelles resulting in the regulation of net charge on the micelle.

In aqueous solutions, chaotropic ions, such as 2,4,6 SMS, are characterized by the ability of the chaotropic ion to associate with the interface, e.g., the air-water interface, the solid-water interface, or the surface of the micelle or lipid bilayer. It is believed that the combination of various forces, including so-called hydrophobic and dispersive forces, is responsible for the association of these interfaces with the chaotropic ions. Combinations of these forces can result, for example, in association of negatively charged chaotropic ions and negatively charged surfaces. In other words, the electrostatic repulsion between the negatively charged structures can be overcome by a combination of other forces. Chaotropic ions, such as 2,4,6 SMS, are not surfactants in the conventional sense. They do not show abrupt changes in concentration in the self-agglomeration, that is they do not show critical micelle concentration in aqueous solution.

The Applicant believes that the association of 2,4,6SMS and all types of micelles produces charges that are more negative near the surface of the micelle, which in turn leads to motion repulsion of hypochlorite anions from the micelles, which in turn leads to hypochlorite and micelles Resulting in a significant reduction in the rate of reaction of the surfactant molecules involved. Surprisingly and unexpectedly, the chaotropic behavior of 2,4,6 SMS combined with intrinsic stability as regards the reaction with hypochlorite involves the incorporation of aromatic sulfonates and surfactants already known in the art for hypochlorite stability Resulting in a mechanism that can be controlled and improved over other systems.

b. Hypohalite and hypochlorite bleaching components

The compositions advantageously include hypohalites, hypohalous acid, or combinations thereof. Hypohalite and hypohalous acid are powerful oxidants having a wide range of uses, including bleaching and antibacterial action of stains from soil, inks, food, and other other sources common to household and other environmental surfaces . Such compositions can be used in a wide range of surfaces (e.g., laundry), including hard and soft surfaces.

Hypoholite is a salt of hypohalous acid. Other hypohalites and hypohalous acids (e.g., hypobromite, hypobromic acid, etc.) may also be suitable for use, but hypochlorite and hypochlorous acid may be particularly preferred. The salt may be an alkali metal or alkaline earth metal salt of a hypohalous acid (e.g., hypochlorous acid), including a combination of salts, or a combination of salts and acids. Specific examples of hypohalites include sodium hypochlorite, potassium hypochlorite, calcium hypochlorite, magnesium hypochlorite, lithium hypochlorite, and combinations thereof. Similar hypobromites and other hypohalites may also be suitable for use.

In one embodiment, the hypohalite and / or hypohalous acid component comprises from greater than 0 weight percent to about 10 weight percent of the composition, from about 0.01 weight percent to about 10 weight percent of the composition, from about 0.05 weight percent to about 8 weight percent of the composition %, From about 0.1% to about 5%, or from about 1% to about 5%, by weight of the composition.

c. Buffer

Suitable buffers include materials which are capable of controlling the pH of the ultimate solution and which are themselves maintained at a sufficient concentration to withstand the reaction with the oxidizing agent and to control the pH. Suitable buffers further include buffers that are non-consumable for action by the oxidizing agent. In addition, suitable buffering agents may have an acid dissociation constant (Ka) at 20 캜 of from about 1 x 10 ^-2 to about 1 x 10 ^-12 , from about 1 x 10 ^-3 to about 1 x 10 ^-11 , from about 1 x 10 ^-3 to about 1 x 10 ^-8 , or from about 1 x 10 ^-8 to about 1 x 10 ^-12 .

Suitable buffers include, but are not limited to, carbonates, bicarbonates, silicates, boric acid and borates, dibasic and monobasic phosphates or phosphoric acids, monocarboxylic or polycarboxylic acids such as acetic acid, succinic acid, octanoic acid, A salt of a substance of the same class as the combination and / or the corresponding acid and its base, and derivatives thereof. Sodium carbonate is a concrete example of this.

In one embodiment, the buffering agent, if present, is present in an amount of from about 0.01% to about 10%, from about 0.05% to about 8%, from about 0.1% to about 5%, or from about 1% Lt; / RTI >

d. Surfactants

Surfactants may be added to improve wetting or spreading ability of the formulation on the surface through reduction of surface tension. Additionally, surfactants help solubilize greasy speckles, which can drive the cleaning process. Surfactants can also be used to help solubilize esthetic components, such as perfumes, which can have a profound effect on consumer preferences between formulations having similar cleaning performance. A wide variety of mixtures of surfactants and surfactants can be used, including anionic, nonionic, cationic, amphoteric, zwitterionic surfactants, and mixtures thereof. Mixtures of different classes of surfactants may be used.

Examples of cationic surfactants include, but are not limited to, monomeric quaternary ammonium compounds. Exemplary suitable quaternary ammonium compounds are available from Stepan Co. under the trade names BTC ^® (eg, BTC ^® 1010, BTC ^® 1210, BTC ^® 818, BTC ^® 8358). Any other suitable suitable monomeric quaternary ammonium compounds may also be utilized. BTC ^® 1010 and BTC ^® 1210 are respectively described as a mixture of didecyldimethylammonium chloride and n-alkyldimethylbenzylammonium chloride with didecyldimethylammonium chloride. Cetyl (C16) trimethylammonium chloride (AMMONYX ^® CETAC) and pentyl (C5) trimethylammonium chloride are specific examples of cationic quaternary ammonium surfactants.

Additional exemplary cationic surfactants include alkyltrimethylammonium, alkylpyridinium, and alkylethylmorpholinium salts wherein the alkyl group has from 4 to 18 carbon atoms, alternatively from 12 to 16 carbon atoms . The alkyl chain may be linear or branched or may comprise an aryl group. The counterion may be, but is not limited to, chloride, sulfate, methylsulfate, ethylsulfate, or toluene sulfonate. Other suitable cationic surfactants include dialkyldimethylammonium salts in which the alkyl groups each contain from 4 to 12 carbon atoms, such as dioctyldimethylammonium chloride. Other suitable cationic surfactants may have two quaternary ammonium groups linked by an alkyl short chain, such as N-alkylpentamethylpropanediammonium chloride. In the cationic surfactants, the methyl substituent may be completely or partially replaced by other alkyl or aryl substituents such as ethyl, propyl, butyl, benzyl, and ethylbenzyl groups, for example octyldimethylbenzylammonium chloride and tetrabutyl Ammonium chloride.

Examples of anionic surfactants include, but are not limited to, alkyl sulfates (e.g., C8-C18 linear or branched alkyl sulfates such as sodium lauryl sulfate (SLS), and sodium tetradecyl sulfate), alkyl sulfonates For example, C6-C18 linear or branched alkyl sulfonates such as sodium octane sulfonate and sodium secondary alkanesulfonates, alkyl ethoxy sulfates, fatty acids and fatty acid salts (e.g. C6-C16 fatty acid soaps such as sodium Other examples include sulfate derivatives of alkyl ethoxylate propoxylates, alkyl ethoxylate sulfates, alpha olefin sulfonates, C6-C16 acyl isethionates (e.g., C6-C18 alkyl, aryl, or alkylaryl ether sulfates, C6-C18 alkyl, aryl, or alkylaryl ether methyl -Sulfonates, C6-C18 alkyl, aryl, or alkylaryl ether carboxylates, sulfonated alkyldiphenyl oxides (e.g., sodium dodecyldiphenyl oxide disulfonate), and combinations thereof. sodium lauryl sulfate (SLS) is a suitable alkyl sulfate is one example of the surface active ^{agent. Steol ® CS-230 (Stepan} Co.) is an example of the alkyl ethoxy ^{sulfate. BIO-SOFT ® S-101} (Stepan Co.) alkyl Benzene sulfonate surfactant.

Other nitrogen-containing surfactants may also be used. These may be benign or amphoteric. These include amine oxides, sarcosinates, taurates and betaines. Examples include C8-C18 alkyldimethylamine oxides (e.g., octyldimethylamine oxide, lauryldimethylamine oxide, and cetyldimethylamine oxide), C4-C16 dialkylmethylamine oxides (such as didecylmethylamine oxide ), C8-C18 alkyl morpholine oxides (e.g., lauryl morpholine oxide), tetra-alkyldiamine dioxides (e.g., tetramethylhexaneanediamine dioxide, lauryltrimethylpropanediamine dioxide), C8- C18 acyl C1-C6 alkyltaurate (e. G., Cetyl betaine and cetyl betaine), C8-C18 acyl sarcosinate (e.g. sodium lauroyl sarcosinate), C8- For example sodium cocoyl methyl taurate, C8-C18 alkyliminodipropionate (e.g., sodium lauryliminodipropionate), and combinations thereof. Lauryl dimethyl amine oxide (AMMONYX ^® LO) and myristyl dimethyl amine oxide (AMMONYX ^® MO) are examples of suitable amphoteric surfactants available from Stepan Co.

Examples of nonionic surfactants include, but are not limited to, mono or alkyl amine oxides, alkyl phosphine oxides, alkyl glucosides and alkyl pentoses, alkyl glycerol esters, alkyl ethoxylates, C6-C12 linear or branched alkylphenols, C6-C22 linear or branched aliphatic primary or secondary alcohols, and C2-C8 linear or branched (for example, ethoxylated or propoxylated) Aliphatic glycols. Blocks or random copolymers of C2-C6 linear or branched alkylene oxides may also be suitable non-ionic surfactants. Capped nonionic surfactants wherein the terminal hydroxyl groups are replaced by halides, i.e. C1-C8 linear, branched or cyclic aliphatic ethers; C1-C8 linear, branched, or cyclic aliphatic esters; Phenyl, benzyl or C1-C4 alkyl aryl ethers; Or phenyl, benzyl or C1-C4 alkylaryl esters may also be used. Sorbitan esters and ethoxylated sorbitan esters can also be useful nonionic surfactants. Other suitable nonionic surfactants can include mono or polyalkoxylated amides of the formula R ¹ CONR ² R ³ and amines of the formula R ¹ NR ² R ³ wherein R ¹ is a C5-C31 linear or branched alkyl group And R ² and R ³ are alkoxylated with C1-C4 alkyl, C1-C4 hydroxyalkyl, or 1 to 3 moles of linear or branched alkylene oxide. ^{BIO-SOFT ® N91-6 (Stepan Co.} ) is an example of including the ethoxylation of average 6 mol of acrylate (or alcohol ethoxylate) ethoxylate of a methylene chain length of C9 to C11 alkyl.

Linear or branched alkyl, alkylphenyl, hydroxyalkyl, or hydroxyalkylphenyl groups containing from 6 to 30 carbon atoms, which may be suitable for use herein, and polysaccharides such as poly Glycosides, alkylpolysaccharides having hydrophilic groups containing from 1.3 to 10 saccharide units are disclosed in US Patent 4,565,647 (Llenado). Suitable saccharides include, but are not limited to, glucosides, galactosides, lactosides, and fructosides. Alkyl poly glycoside has the formula R ² 0 (CnH _2n O) may have a _t (glycosyl) _x, where R ² is alkyl, alkylphenyl, hydroxyalkyl, hydroxy alkylphenyl, and mixtures thereof And wherein said alkyl group comprises from 10 to 18 carbon atoms; n is 2 or 3; t is from 0 to 10, and x is from 1.3 to 10.

Fatty acid saccharide esters and alkoxylated fatty acid saccharide esters may also be suitable for use in the present invention. Examples include, but are not limited to, sucrose esters such as sucrose cocoate; And sorbitan esters such as polyoxyethylene (20) sorbitan monooleate and polyoxyethylene (20) sorbitan monolaurate.

A wide variety of phosphate ester surfactants may also be suitable. These include mono, di and triesters of phosphoric acids having C4-C18 alkyl, aryl, alkylaryl, alkyl ethers, aryl ethers, and alkylaryl ether alcohols such as disodium octylphosphate.

In one embodiment, the surfactant can be selected based on environmentally friendly or nature friendly criteria. For example, there is an increasing need to use naturally derived, naturally processed, and biodegradable components, rather than simply being recognized as safe. Such "natural surfactants" can be produced using processes that are perceived as more natural or ecological, such as distillation, condensation, extraction, steam distillation, pressurization and hydrolysis.

A common list of anionic, amphoteric, and amphoteric classes of these surfactants is provided in U.S. Patent No. 3,929,678 (Laughlin and Heuring). A list of suitable cationic surfactants is provided in U.S. Patent No. 4,259,217 (Murphy). Additional details of various surfactants that may be suitable for use can be found in U.S. Publication No. 2013/0028990. Each of these patents and applications is incorporated herein by reference in its entirety.

e. Other auxiliaries

A wide range of optional adjuvants may be present. (For example, but not limited to, EDTA salts, GLDA, gluconate, 2-hydroxy acids (such as hydrochloric acid, nitric acid, phosphoric acid and the like), oils, fragrances, solvents, pH adjusting agents such as acids or bases, builders, silicates, And derivatives, glutamic acid and derivatives, trimethylglycine, and the like).

Dyes and coloring agents may be present. A thickener may be present.

Enzymes may be present, particularly when the formulations are modified for use as laundry detergents or as detergents for kitchen and restaurant surfaces, or for use as a drain cleaner or drain line repairer.

A water-miscible solvent may be present in some embodiments. Lower alcohol (e. G., Ethanol), ethylene glycol, propylene glycol, glycol ethers, and mixtures thereof having water miscibility at 25 占 폚 may be present in some embodiments. Other embodiments will not include any lower alcohol or glycol ether solvent. When such a solvent is present, some embodiments may contain the solvent in only small amounts, for example, in amounts of up to 5 wt%, up to 3 wt%, or up to 2 wt%.

Water-miscible oils or solvents may be present which solubilize into the surfactant micelles. Among these, oils include those added as fragrances. Preferred oils are from natural sources, including a wide variety of so-called essential oils derived from a variety of plant sources. Formulations intended to provide an antibacterial benefit in combination with generally improved persistence may advantageously include a quaternary ammonium compound in combination with an essential oil, such as thymol, preferably in the absence of a water-miscible alcohol.

Silicates, builders, chelating agents, preservatives, fragrances, and any other adjuvant may be included in a suitable effective amount. In some implementations, such levels may be from 0.1 wt% to 10 wt%, or from about 0.1 wt% to 5 wt%, or from about 0.1 wt% to 1 wt%.

A concentrated form of the formulation that can be diluted by the consumer to provide a solution to be used later can be developed. Concentrates may be diluted with water or a concentrated form suitable for dilution through an automated system in which the two solutions are combined in the desired ratio to provide an end use formulation.

The composition is a liquid (as opposed to, for example, a solid composition). In one embodiment, the composition includes other aryl sulfonates that are substantially included as stabilizers, such as sodium xylene sulfonate, para-toluene sulfonic acid (PTSA), naphthalene sulfonate, benzene sulfonate, and chlorobenzene sulfonate It may be absent. The composition may be substantially free of the isomers of the 2,4,6 mesitylenesulfonate salts contained therein. For example, the composition may be substantially free of sodium 2,4,5 mesitylenesulfonate, 2,3,5 mesylenesulfonate, or combinations thereof. In compositions that are substantially free of sodium 2,4,5 mesitylenesulfonate, 2,3,5 mesylenesulfonate, or a combination thereof, these isomers are present in a concentration of less than 10% of the concentration of the 2,4,6 mesitylenesulfonate salt present, Lt; / RTI > concentration.

IV. Example

The stability of hypochlorite in formulations containing surfactants, 2,4,6 SMS and other additives was monitored via standard titrations of hypochlorite after aging of the formulations. Various formulations were prepared and then stored in a glass test tube sealed with a Teflon-lined cap. The test tube was placed in a water bath set at 49 캜 to provide a reproducible temperature history of the formulation to be compared. The source of hypochlorite was a commercially available Clorox ^® Germicidal Bleach. The hypochlorite level of the bleach source was determined just prior to preparation of the various formulations.

A cleaning formulation comprising hypochlorite exhibiting stability such that at least about 50% of the initial hypochlorite concentration is retained after 28 days of aging at < RTI ID = 0.0 > 49 C < / RTI > Although a retention rate of 50% or more is one reference point, even if the retention rate is lower or higher than 50%, any significant improvement may be very advantageous. For example, if only 0% to about 10% of hypochlorite is retained after 28 days in the control scenario (or scenarios based on existing technologies), even a value of 25%, 30%, or 40% Increased hypochlorite retention is a significant benefit. Of course, an increase in retention of greater than about 50% represents a much greater improvement.

Example  One

Anionic  Bleach retention rate of formulations comprising surfactant micelles and additives

Table 1 shows composition and bleach stability data in Formulations 1-1 to 1-6. Formulation 1-1 did not contain any stability additive (e. G., Control). Formulation 1-2 contained 1.36% sodium xylene sulfonate (SXS). Formulations 1-3 contained 1.5% sodium para-toluene sulfonate (Na-PTSA). Formulations 1-4 contained 4% sodium nitrate. Formulations 1-5 contained 1% of 2,3,5 sodium mesitylene sulfonate (2,3,5 SMS). Formulations 1-6 contained 1% 2,4,6 sodium mesitylene sulfonate (2,4,6 SMS). Each formulation contained 1% Stepanol ^® WA-Extra HP, sodium lauryl sulfate surfactant, 1% sodium hypochlorite (Clorox ^® Germicidal Bleach sodium hypochlorite solution), and 2.5% anhydrous reagent grade sodium carbohydrate Nate buffer.

[Table 1]

Table 1 shows the stability of hypochlorite in various formulations including anionic surfactant, sodium lauryl sulfate. "Bleach retention" is expressed as a percentage of the initial hypochlorite concentration remaining after 28 days at 49 ° C. All formulations of Example 1 initially contained 1% sodium hypochlorite. Thus, Formulation 1, the control formulation, showed a retention of only 11% of the initial sodium hypochlorite after 28 days.

The results of Formulations 1-2 and 1-3 in Table 1 indicate that the addition of sodium xylene sulfonate ("SXS") or sodium para-toluene sulfonate ("Na-PTSA" It is possible to provide an increase in bleach retention in formulations containing anionic surfactants compared to the formulation (Formulation 1-1). The use of these specific aromatic sulfonates in formulations with hypochlorites is well known in the art. However, the bleach retention after 28 days at 49 占 폚 is still relatively low (36% and 33%, respectively).

The results of Formulations 1-5 in Table 1 show that the addition of 2,3,5 SMS also results in an increase in bleach retention (34%), similar to that provided by the aryl sulfonates of Forms 1-2 and 1-3. Can be provided. Surprisingly, however, the addition of 2,4,6 SMS can provide a significantly greater increase in bleach retention compared to other aryl sulfonates. For example, Formulations 1-6 surprisingly show a bleach retention of 72% which is about twice that provided by any other tested aryl sulfonate. Applicants do not wish to be bound by theory, but the chaotropic interaction of micelles containing 2,4,6SMs and anionic surfactants provides an increase in the total number of negative charges near the surface of the surfactant micelle, Which leads to an increase in the repulsion of hypochlorite anions and thus to a decrease in the reaction of hypochlorite with surfactant molecules containing micelles.

Example  2

Cationic  Bleach retention rate of formulations comprising surfactant micelles and additives

Table 2 shows composition and bleach stability data in formulations 2-1 to 2-8. Formulations 2-1 to 2-6 were included in the AMMONYX CETAC ^® cetyl (C16) ammonium chloride surfactants. Formulations 2-7 and 2-8 included pentyltrimethylammonium chloride surfactant. Formulations 2-1 and 2-7 did not contain any stability additive (e. G., Control). Formulation 2-2 contained 1.88% SXS. Formulations 2-3 contained 3% Na-PTSA. Formulations 2-4 contained 2% sodium nitrate. Formulations 2-5 included 2, 3, 5, and 5 SMS. Formulations 2-6 contained 2% 2,4,6 SMS. Formulations 2-7 contained 0.25% 2,4,6 SMS. Each formulation contained sodium hypochlorite (Clorox ^® Germicidal Bleach sodium hypochlorite solution), and 2.5% anhydrous reagent grade sodium carbonate buffer, 1% 1% available alkyl trimethyl ammonium chloride surfactant, the application of .

[Table 2]

The results in Table 2 show that bleaching agent retention is not very good in formulations containing any one of the cationic surfactants and that no hypochlorite remains after 28 days of aging at 49 占 폚. The addition of SXS or Na-PTSA to formulations containing AMMONYX ^® CETAC can provide a slight increase in bleach retention compared to the control, but the retention is still very low (25% and 14%, respectively).

The results of Formulations 2-6 in Table 2 show that the addition of 2,4,6 SMS to formulations containing micelles of AMMONYX ^® CETAC is much more significant for the retention of hypochlorite than is provided by other aryl sulfonates (≫ 50%). ≪ / RTI > As indicated by Forms 2-5, the addition of 2,3,5 SMS does not provide essentially any improvement over the hypochlorite retention rates provided by the control group.

The results of Formulations 2-8 in Table 2 also show that the addition of 2,4,6 SMS to formulations containing micelles of cationic surfactants having alkyl short chains such as pentyltrimethylammonium chloride is surprising for the stability of hypochlorite (Rising to 61%).

Example  3

The bleach retention rate of formulations comprising amphoteric surfactant micelles and additives

Table 3 shows composition and bleach stability data in formulations 3-1 to 3-6. Formulation 3-1 did not contain any stability additive (e. G., Control). Formulation 3-2 contained 4% SXS. Formulation 3-3 contained 3% Na-PTSA. Formulations 3-4 contained 4% sodium nitrate. Formulations 3-5 contained 1.5% 2,3,5 SMS. Formulations 3-6 included 1.5% 2,4,6 SMS. Each formulation contained 1% AMMONYX ^® LO, lauryldimethylamine oxide surfactant, 1% sodium hypochlorite (Clorox ^® Germicidal Bleach sodium hypochlorite solution), and 2.5% anhydrous reagent grade sodium carbonate buffer .

[Table 3]

Table 3 shows the stability of hypochlorite formulations comprising a positive ionic amine oxide surfactant (e.g., lauryldimethylamine oxide). The amphoteric surfactant may exhibit a net change depending on the pH of the aqueous solution. Amine oxide surfactants can exhibit cationic charges due to the protonation of the amine oxide head group at relatively low pHs, e.g., pH 2, while the amine oxide surfactants can be charged at a relatively high pH, . The pKa value of the amine oxide surfactant is typically about 4.5. Thus, near pH 4.5, about 50% of the amine oxide molecules will be charged to the cation and 50% will not be charged. Since the formulations in Table 3 contain sodium carbonate buffer and thus exhibit a pH near 11.0, the amphoteric amine oxide surfactant present in these formulations may not be fully charged.

In each example, including Example 3, bleach retention values were determined when the concentrations of all other additives were kept fixed and the concentration was increased for each additive in the formulation. Thus, the recorded bleach retention rate value refers to a formulation in which the highest bleach retention is observed at the lowest additive concentration since the additive level is near optimal. As is readily apparent from Table 3, all formulations other than Formulations 3-6 (including 2,4,6 SMS) exhibited 0% hypochlorite retention after 28 days. In order to distinguish bleaching agent retention of formulations containing different levels of a given additive, there should be some measurable hypochlorite remaining in the formulation. Thus, information on the bleach retention rate over time, i.e., the rate of bleach loss, is measured in the period before 28 days. After 28 days, no detectable hypochlorite remained in Formulations 3-1 through 3-5, but samples of the formulation were analyzed (via titration) at a further intermediate time point over the 28 day test period.

Specifically, bleach retention of all formulations was measured at 7 days, 14 days, 21 days and 28 days after aging at 49 캜. In the case of highly unstable formulations, the bleaching agent retention observed at shorter aging times such as 7 or 14 days depending on the additive level was used to determine the optimum additive level. The final result obtained on day 28 recorded in Table 3 for each formulation is for the optimum additive level.

The results in Table 3 show that the control formulation (Formulation 3-1) comprising a positive ionic surfactant has no bleaching agent remaining after 28 days of aging at 49 DEG C and is therefore a very unstable formulation. The addition of SXS or Na-PTSA (Formulations 3-2 and 3-3) does not improve bleach retention at 28 days compared to the control, even at the level of optimal bleach retention at even shorter periods. Thus, a typical feature of a positive ionic surfactant, such as an amine oxide, in a formulation with hypochlorite that has been taught and believed to be stable in the prior art is that a significant amount of hypochlorite bleach is retained after a storage period of 28 days at < RTI ID = Does not provide a method of selecting the additive in the formulation when it is desired to be.

The results of Formulations 3-6 in Table 3 also show that, surprisingly, the addition of 2,4,6 SMS to formulations comprising a positive ionic surfactant results in a significant increase in bleach retention even after 28 days of aging at 49 DEG C . The 58% hypochlorite retention of Formulations 3-6 is very surprising compared to 0% retention of Formulations 3-2, 3-3 and 3-5, especially including other aryl sulfonates.

Example  4

Cationic  And Anionic  Bleach retention rate of formulations containing mixed micelles of surfactant and 2,4,6 SMS

Table 4 shows composition and bleach stability data in Formulations 4-1 through 4-11. Each formulation contained a mixture of cationic (AMMONYX ^® CETAC) and anionic (ie, sodium lauryl sulfate, "SLS") surfactants in different proportions. Each formulation is sodium hypochlorite (Clorox ^® Bleach Germicidal sodium hypochlorite solution) of the total surfactant, 1% of 4% 2,4,6 SMS, 1%, and 2.5% anhydrous reagent grade sodium carbonate Nate buffer.

[Table 4]

In this formulation, the increase in bleach retention in formulations comprising anionic and cationic surfactants through the addition of 2,4, 6 SMS is clearly demonstrated over a wide ratio of anionic surfactant to cationic surfactant concentration . The composition of the mixed micelles was modified by varying the relative amounts of SLS and AMMONYX ^® CETAC in the formulation, but the total surfactant concentration was fixed at 1 wt%. In addition, the initial sodium hypochlorite concentration (1%) and sodium carbonate buffer concentration (2.5%) were the same as in Examples 1 and 2. Anionic surfactants SLS was the same as used in Example 1, AMMONYX CETAC ^® was the same as that used in Example 2. Fig.

The results in Table 4 show that the addition of an appropriate amount of 2,4,6 SMS to the mixed micelles comprising anionic surfactants and cationic surfactants results in more than 50% aging over a wide ratio of anionic surfactant to cationic surfactant Indicating that the post-bleaching retention ratio level is calculated. In other words, a system rich in cationic surfactant from a system rich in anionic surfactant (Formulation 4-1) over the entire range of tested compositions of mixed micelles (Formulations 4-11). Formulation 4-1 shows a ratio of anionic surfactant to cationic surfactant of 1:19, while Formulations 4-11 show a ratio of anionic surfactant to cationic surfactant of 19: 1.

Since the net charge on the mixed micelles of the anionic surfactant and the cationic surfactant will vary with the relative amount of each surfactant present, the results in Table 4 also show that the chaotropic The interaction is independent of the composition or net charge of the mixed micelles, consistent with that of Examples 1 and 2, where the addition of 2,4,6 SMS increases the bleach retention of the micelle using only either a negative charge or a positive charge Indicating that it is useful in raising the bleach retention rate. This indicates that the interaction of 2,4,6 SMS with micelles is additionally indicated as being chaotropic in origin and not controlled or directly related by the static charge present in the micelles.

The addition of 2,4,6 SMS can also change the phase behavior of such a mixed micelle system. For example, 2,4,6 SMS was included at 4 wt% in each formulation of Example 4 to ensure that all mixtures were soluble at 49 [deg.] C. At lower concentrations of 2,4,6 SMS, some systems can settle.

Example  5

Cationic  And Anionic  Bleach retention rate of formulations containing mixed micelles of surfactant and 2,4,6 SMS

Table 5 shows composition and bleach stability data in formulations 5-1 to 5-10. Each formulation contained a mixture of different non-cationic (pentyltrimethylammonium chloride) and anionic (SLS) surfactants. Each formulation contained 0.25% 2,4,6 SMS, 1% total surfactant, 1% sodium hypochlorite (Clorox ^® Germicidal Bleach sodium hypochlorite solution), and 2.5% anhydrous reagent grade sodium carbosulfate Nate buffer.

[Table 5]

The results in Table 5 show that the addition of an appropriate amount of 2,4,6 SMS to mixed micelles comprising anionic surfactants such as SLS and cationic surfactants such as pentyltrimethylammonium chloride results in a full range of tested compositions of mixed micelles , A bleaching agent retention level of at least 50% after 28 days of aging at 49 ° C, from a system rich in cationic surfactants (Formulation 5-1) to an anionic surfactant-enriched system (Formulations 5-10) . Formulation 5-1 shows a ratio of anionic surfactant to cationic surfactant of 1:10, while Formulations 5-10 show a ratio of anionic surfactant to cationic surfactant of 10: 1.

Example 5, even a cationic when the surfactant is considerably more hydrophilic, for example, a cationic surfactant is the fourth embodiment of the carbon 16 individual AMMONYX ^® compared to CETAC even when carbon is to have five individual methylene short chain tail bleach Clearly demonstrating an increase in the retention rate. The results show that the association of 2,4,6 SMS with mixed anionic-cationic micelles is not strongly affected by the properties of the methylene chain tail of the surfactant. A method for determining the optimal amount of 2,4,6 SMS required to increase bleach retention, wherein the range of additive concentrations was tested after aging at 49 占 폚, 6 SMS was selected as the lowest level). 0.25% of 2,4,6 SMS was sufficient to achieve a level of hypochlorite retention of 50% or more after 28 days at 49 占 폚.

Example  6

Positive ionic and Anionic  Bleach retention rate of formulations containing mixed micelles of surfactant and 2,4,6 SMS

Table 6 shows composition and bleach stability data in formulations 6-1 to 6-10. Each formulation contained a mixture of different non-amphoteric (AMMONYX ^® LO) and anionic (SLS) surfactants. Each formulation of the total surfactant, 1% of 1.5% 2,4,6 SMS, 1% of sodium hypochlorite (Clorox ^® Bleach Germicidal sodium hypochlorite solution), and 2.5% anhydrous reagent grade sodium carbonate Nate buffer.

[Table 6]

The results in Table 6 show that the addition of 2,4,6 SMS to formulations containing mixed micelles of anionic surfactants and amphoteric surfactants and hypochlorite results in bleaching during aging over the entire range of tested compositions of mixed micelles Indicating an increase in the retention rate. The ratio of anionic surfactant to amphoteric surfactant ranged from 1:10 to 10: 1. As in the other described examples, the bleach retention rate of the formulations over the mixed micellar composition differing from anionic-rich to positive-ionic-rich was monitored at 49 캜 with increasing levels of 2,4,6 SMS depending on the aging period . With these investigations, the addition of 1.5% 2,4,6 SMS at a constant level of selected 1% total surfactant and at a selected hypochlorite concentration of 1% Was found to be the minimum amount required to provide an increase in bleach retention of greater than 50% after 28 days of aging at 49 DEG C for a particular mixed micelle formulation. As mentioned in the other examples, the bleach retention of the individual surfactants at the same total surfactant concentration (1%), the same sodium carbonate concentration (2.5%), and the same hypochlorite concentration (1% 4,6 SMS or in the presence of some other aryl sulfonates such as SXS or Na-PTSA known in the art.

Example  7

Anionic  And Nonionic  Bleach retention rate of formulations containing mixed micelles of surfactant and 2,4,6 SMS

Table 7 shows composition and bleach stability data in Formulations 7-1 to 7-4. Each formulation contained a mixture of anionic surfactant (SLS) and nonionic surfactants (BIO-SOFT ^® N91-6). BIO-SOFT ^® N91-6 is a rate surfactant Ethoxylated alkyl having a methylene chain length of C9 to C11 and an average of 6 moles of ethoxylation. Each formulation was 2% of 2,4,6 SMS, the total surfactant in the 1% sodium hypochlorite (Clorox ^® Bleach Germicidal sodium hypochlorite solution) for 1%, and 2.5% anhydrous reagent grade sodium carbonate Nate buffer.

[Table 7]

The results in Table 7 show that the addition of 2,4,6 SMS to formulations comprising mixed micelles of anionic surfactants and nonionic surfactants (alkyl or alcohol ethoxylates) and hypochlorite results in anionic surfactant versus non- It is possible to provide an increase in bleach retention over a range of compositions of mixed micelles having different ratios of surfactant. Monitoring the rate of bleach retention in these mixed micelles by aging at 49 ° C using various levels of 2,4,6 SMS included in the mixed micelle system over the composition range from anionic-rich to non-ionic-rich Can also be used to indicate the range of mixed micelle compositions, which could be expected to exhibit a retention of hypochlorite of greater than 50% after 28 days at 49 占 폚. Thus, at a constant concentration of 1% total surfactant, it is possible to include an alcohol ethoxylate of 0.4% or more (40% of the surfactant package) while maintaining a bleach retention of at least 50%. These results (that is, relatively high levels of alcohol ethoxylate surfactant can be included, while maintaining a relatively high bleach retention ratio) indicate that the alcohol ethoxylate surfactant readily reacts with sodium hypochlorite, This is surprising because it is known to cause significant bleach losses.

Even in mixed micelle formulations containing greater than 40% alcohol ethoxylate, significant retention of bleach is still observed when 2,4,6 SMS is present in the formulation. Thus, depending on the desired hypochlorite concentration or retention ratio, the addition of 2,4,6 SMS to a composition comprising mixed micelles of anionic surfactant and nonionic surfactant may result in somewhat more < RTI ID = 0.0 > Could be used to provide formulations at low hypochlorite concentrations or retention values. In other words, higher concentrations of alcohol ethoxylate can be used if lower bleach retention rates are allowed.

The results also show that the chaotropic interaction between 2,4,6SMS and the mixed micelles of the anionic surfactant and the nonionic surfactant is even more pronounced when the nonionic surfactant is known to be relatively reactive with hypochlorite Indicating a surprising increase in bleach retention. Taken together, the examples demonstrate that the benefits of bleach retention achieved through the addition of 2,4,6 SMS to hypochlorite formulations containing various surfactants are not unique to a single surfactant type, but surprisingly strong .

Example  8

Sulfonate  And Ethoxy sulfate  Determination of Bleaching Retention Rise Profits of 2,4,6 SMS in Formulations Containing Surfactants

In a formulation comprising micelles of hypochlorite, sodium carbonate, and ethoxy sulphate (Steol ^® CS - 230, sodium salt) or aromatic sulfonate (BIO - SOFT ^® S - 101, sodium salt) 4,6, SMS bleaching agent gains were investigated according to the level of 2,4,6 SMS included over time. Steol CS-230 ^® is an ethoxy sulfate (available from Stepan Co.) and, BIO-SOFT ^® S-101 is an alkyl benzene sulfonate (obtained from the Stepan Co. available) alkyl.

The surfactant level was fixed at 1 wt%, the carbonate level was fixed at 2.5 wt%, and the initial concentration of sodium hypochlorite was 1 wt%. Six formulations of each surfactant type were prepared, each containing 2% 2,4,6 SMS as a control and 5 levels 2,4,6 SMS over a range of 1% -5% by weight . The formulations were stored in a glass test tube at 49 占 폚 in a water bath. On days 7, 14, 21 and 28, sodium hypochlorite concentrations were determined by titration. Table 8 summarizes the results, wherein the percent bleach retention refers to the percentage of original sodium hypochlorite concentration found in the sample of the day of the measurement.

[Table 8]

The results show that the bleach retention rate of the formulation decreases rapidly when the added 2,4,6 SMS is absent (0%), and the result shows the difference in bleach retention ratio between the two surfactants, wherein the BIO- SOFT ^® S-101 shows a better retention after 7 days.

The results in Table 8 indicate that addition of 1% 2,4,6 SMS to the formulation containing Steol ^® CS-230 increases the bleach retention rate from 0% to 50% after 28 days of aging, Of 2,4,6 SMS do not seem to add the bleach retention rate of these formulations.

The results in Table 8 also indicates that the addition of 2,4,6 SMS provide a very large increase for the retention of the bleaching agent formulations containing BIO-SOFT ^® S-101 surfactant, where 2,4,6 SMS The magnitude of the added benefit is apparent after 21 days. Data is the maximum value of the bleach retention rate increases due to 2,4,6 SMS to suggest somewhat less in the BIO-SOFT ^® S-101 as compared to Steol ^® CS-230. For example, after 28 days, BIO-SOFT ^® S-101 formulation, while showing the retention in the range of 25% to 40%, Steol CS-230 ^® formulation shows a retention in the range of 30% to 50%.

Example  9

Water insolubility  Solvent and Hypochlorite  Increased bleach retention by 2,4,6 SMS in formulations containing

The incorporation of significant amounts of water insoluble components, such as perfume oils or other oils or solvents, into the cleaning formulations to form the so-called microemulsions may be important in controlling the esthetics and / or cleaning performance of the formulations. Such ingredients, even when solubilized in formulations containing hypochlorite, often lead to unacceptable losses of hypochlorite upon aging. In other words, the reactants of hypochlorite and these oils are not removed, since only the oil is solubilized by the surfactant.

The increase in bleach retention achieved with the addition of 2,4,6 SMS provides a formulation that can contain significant amounts of water insoluble oils, even after aging at < RTI ID = 0.0 > 49 C, < / RTI & .

As an example, SLS was used to solubilize water insoluble oil or solvent, M1214 over an oil concentration range, wherein the formulation also included sodium hypochlorite. M1214 is C12-C14 dimethyl amide, available from Stepan Co.

From a practical point of view, it is desirable for the liquid formulation to maintain a single phase over the temperature range, i.e. the oil should not cause or cause turbidity of the formulation if a transparent product is required. In certain surfactant-oil combinations, the addition of other water-soluble ingredients, such as SXS, that are not real surfactants can increase solubilization of the oil or modify the robustness of the formulation to changes in temperature.

Initial investigations of formulations comprising 1%, even 2% SLS in the presence of 2.5% sodium carbonate and 1% sodium hypochlorite, and also 0.25% to 1% M1214 solvent, It was not completely transparent at 49 [deg.] C. As such, SLS can be a relatively poor choice in solubilizing such a solvent in formulations comprising a relatively high concentration of soluble electrolyte provided by hypochlorite and carbonate. The addition of 2,4,6 SMS at 1.5 wt% to the same formulation provided an improvement in oil solubility over a range of oil levels of interest. The addition of 2,4,6 SMS at 3% showed even greater improvement and provided a clear formulation over the entire range of oil concentrations of interest at both room temperature and 49 < 0 > C.

Thus, the addition of 2,4,6 SMS provided a significant increase in oil solubilisation, preferably at low surfactant / oil ratios, for example 1% surfactant to 1% M1214, which is transparent at both room temperature and 49 < Respectively. Thus, in the case of containing 2,4,6 SMS, there was no need to increase the surfactant concentration to 2% to ensure robust solubilization of the oil. Applicants are not intended to be bound by theory, but considerable chaotropic interactions of 2,4,6 SMS with surfactant micelles, which lead to an increase in bleach retention, also modulate surfactant-oil interactions in micelles or microemulsion aggregates Which is believed to reduce the amount of surfactant needed to solubilize the oil.

The bleach retention of these formulations aged at < RTI ID = 0.0 > 49 C < / RTI > was also studied and the results are reported in Table 9.

[Table 9]

The results in Table 9 show that the addition of 2,4,6 SMS at different concentrations to formulations containing sodium hypochlorite, sodium carbonate and SLS yields a significant increase in bleach retention when aged 28 days at 49 < RTI ID = 0.0 > . Formulations 9-5 through 9-8 shown in Table 9 also show a significant increase in bleach retention in formulations comprising insoluble oils such as M1214 over a wide range of oil concentrations . Applicants do not wish to be bound by theory, but by reducing or eliminating the reaction and access to hypochlorite for components in which the chaotropic interaction of the surfactant agglomerates with 2,4,6 SMS is maintained within the aggregate And provide an increase in bleach retention in the same system. These benefits are advantageously achieved if the surfactant agglomerates are swelled with significant amounts of water insoluble oil (if the oil is present in the system) or not (if the oil is not present in the system). As such, the components in the agglomerate can be protected from reaction with hypochlorite. In other words, any additional components of surfactant molecules and aggregates, such as solubilizing water-insoluble oils, fragrances, etc., can all be protected within the aggregates.

Thus, although the structure of the surfactant and the oil can be determined by their intrinsic reactivity with hypochlorite, the mechanism of bleach retention enhancement provided by 2,4,6 SMS can be attributed to the specific properties of the surfactant or oil- . Thus, the use of 2,4,6 SMS allows the inclusion of fragrance, oil, or other components that are relatively reactive with hypochlorite in a relatively stable liquid by protecting these reactive components from interaction with hypochlorite .

Example  10

Anionic  Surfactants, Hypochlorite , Sodium Carbonate  And sodium Hyde Increased bleach retention by addition of 2,4,6 SMS to formulations containing rockside

The addition of sodium hydroxide (caustic) is often used to increase bleach retention. As the level of caustic added to the formulation increases, the pH will tend to increase, and the likelihood of skin irritation and the attack of some household surfaces, such as internal and external building coatings, may also occur. In an effort to provide hypochlorite detergents with milder pH characteristics, caustic levels can be minimized through the addition of other buffering agents such as sodium carbonate.

The effect of bleaching agent retention on addition of 2,4,6 SMS on formulations comprising 1% SLS, 1% hypochlorite, and various amounts of sodium hydroxide and sodium carbonate is shown in Table 10 have. The formulations were prepared and aged at 49 DEG C for 7 days, 14 days, 21 days and 28 days. After aging, residual hypochlorite levels were determined by titration. Only the final data on the 28th day of ripening are shown in Table 10. Since different levels of sodium hydroxide were added to the formulation, the initial pH of the formulation varied, with higher pH when sodium hydroxide was added and lower pH in the absence of sodium hydroxide.

[Table 10]

The results in Table 10 indicate that the bleach retention is even worse (24% retention of bleach) even when the sodium carbonate level is 5%, without the addition of sodium hydroxide or 2,4,6 SMS. Without the addition of sodium hydroxide, in the presence of 1 wt.% 2,4,6 SMS, the bleach retention rises considerably even when no carbonate is added (49% compared to 0% bleaching retention). These results illustrate the very important benefits provided by the addition of 2,4,6 SMS to such formulations.

The results in Table 10 also show that the 2,4,6SMS significantly increases bleach retention when 0.2% sodium hydroxide is present and only adds 0.2% sodium hydroxide and does not add 2,4,6 SMS And produces a better bleach retention than can be achieved, especially when the sodium carbonate level is less than 2.5%.

Bleaching retention of the formulations containing 2,4,6 SMS over different carbonate concentrations, even at sodium hydroxide levels of 0.5% and 0.75%, was found to be up to about 2.5% And is at least as good as the system if it is not better than the system not added.

The results in Table 10 show that the addition of 2,4,6 SMS in the formulation significantly increases bleach retention even in the presence of added sodium hydroxide and sodium carbonate, The pH of the formulation comprising the electrolyte, the buffer and the resulting anionic surfactant and sodium hypochlorite.

The results also indicate that the formulation may contain less than about 0.2 wt.%, 0.5 wt.%, Or 0.75 wt.% Of a water soluble hydroxide salt, such as, for example, (I.e., stability) of the bleach can be increased. The pH of the resulting formulation can be substantially milder if desired, since little or no sodium hydroxide is needed to increase stability. For example, the pH may be less than about 12, less than about 11, less than about 10, or about 10 to about 12.

Example  11

A positive ionic surfactant, Hypochlorite , Sodium Carbonate , And sodium Ha Bleaching agent retention rises due to the addition of 2,4,6 SMS to formulations containing idroxide

The experiment, the positive was carried out in the ionic surfactant (AMMONYX LO ^®, dimethyl alkyl amine oxide, available Stepan Co. available from) a similar manner as described above and in Example 10, except that in the embodiment. The initial bleach concentration was 1% for sodium hypochlorite. The bleach retention results after 28 days at < RTI ID = 0.0 > 49 C < / RTI >

[Table 11]

The data in Table 11 show that the addition of 2,4,6 SMS to the formulation provides a very significant increase in bleach retention at all tested concentrations of sodium hydroxide both in the presence and absence of any sodium carbonate . Advantageously, the bleach retention of the formulation comprising 1% 2,4,6 SMS (which is not necessarily the optimal level of addition) and 0.2% sodium hydroxide is 0.5% Exceeds the bleach retention rate of the system (at all carbonate levels) that can be achieved through the addition of sodium hydroxide. In other words, when the formulation comprises a positive ionic amine oxide surfactant, the 2,4,6 SMS is a much better (i.e., milder and more effective) bleach retention enhancement agent than sodium hydroxide.

Example  12

Cationic  Surfactants, Hypochlorite , Sodium Carbonate , And sodium Hi Increase of bleach retention rate by addition of 2,4,6 SMS to formulation containing dronoxide

Experiment in this example is carried out with a cationic surfactant (AMMONYX CETAC ^®, cetyl (C16) ammonium chloride, Stepan Co.) an analogous manner as described in Example 10, except that. The initial bleach concentration was 1% for sodium hypochlorite. The bleach retention results after 28 days at < RTI ID = 0.0 > 49 C < / RTI >

[Table 12]

The data in Table 12 show that this cationic surfactant has somewhat poor bleach retention when aged for 28 days at < RTI ID = 0.0 > 49 C < / RTI > and adding sodium hydroxide and sodium carbonate separately, Of the bleaching agent < / RTI >

The data in Table 12 also indicate that the addition of 1% 2,4,6 SMS to the formulation provides a very significant increase in bleach retention even in the absence of any added sodium hydroxide. In fact, with 0% added sodium hydroxide and 2.5% sodium carbonate, with the addition of 1% 2,4,6 SMS (which is not necessarily the optimal level), bleach retention rates of about 50% or more are achieved . The addition of 0.2% sodium hydroxide and 1% by weight of 2,4,6 SMS can further improve the bleach retention value over the various carbonate levels, so that the flexibility in the formulation can be adjusted according to need, To optimize other aspects of the same formulation.

Thus, the data of Examples 10, 11, and 12 show that the rising character of bleach retention through addition of 2,4,6 SMS included hypochlorite with various levels of sodium hydroxide and / or sodium carbonate buffer , Where these compositions may additionally comprise anionic, cationic and / or amphoteric surfactants. [0050] Applicants do not intend to be bound by theory, but assume that the chaotropic interaction of 2,4,6 SMS with surfactant micelles is not unique to the type of surfactant or electrolyte or buffer component of the formulation. The degree of increase in bleach retention achieved through the addition of 2,4,6 SMS (which may be better than achieved through addition of caustic or buffering agents) may vary depending on the nature of the surfactant in the particular formulation. Surfactants that exhibit greater reactivity with hypochlorite and exhibit worse bleach retention under normal conditions (i.e., in the absence of 2,4,6 SMS) tend to gain more benefits from the addition of 2,4,6 SMS This can be.

Example  13 to 30

In the following Tables, Examples 13 to 30 describe additional examples of various hypochlorite formulations that can be stabilized with 2,4,6 SMS.

[Fig. 13]

[Fig. 14]

[Fig. 15]

[Fig. 16]

[Figure 17]

A prewetting towel lotion may be added to the nonwoven substrate to create a prewetting towel or other substrate cleaning device (e.g., as in Examples 22-25). The ratio of lotion to substrate may be from about 0.1: 1 to 10: 1 by weight. Such a towel or other substrate may be used for floor cleaning as a towel for disinfection or with a variety of tools configured to attach to a towel or substrate. Further details of exemplary descriptions including nonwoven substrates are found in U.S. Publication No. 2005/0155630, which is incorporated herein by reference in its entirety.

Without departing from the spirit and scope of the present invention, those skilled in the art may make various changes and modifications to the present invention to adapt it to various usages and conditions. As such, these changes and modifications are to be considered as being appropriate and equal, and are intended to fall within the full scope of equivalents of the claims that follow.

Claims (20)

At least one of hypohalite or hypohalous acid bleaching component; And
Soluble salts of 2,4,6-mesitylenesulfonate
≪ / RTI > The composition of claim 1, wherein the soluble salt of 2,4,6-mesitylenesulfonate is an alkali metal salt of 2,4,6-mesitylenesulfonate. The composition of claim 1, wherein the soluble salt of the 2,4,6-mesitylenesulfonate is sodium 2,4,6-mesitylene sulfonate. 2. The composition of claim 1, wherein the composition comprises a buffer. 5. The composition of claim 4, wherein the composition comprises a surfactant. 6. The composition of claim 5, wherein the composition comprises an anionic surfactant. 7. The composition of claim 6, wherein the composition comprises a carbonate buffer. The composition of claim 1, wherein the composition does not comprise sodium xylene sulfonate, sodium para-toluene sulfonate (Na-PTSA), naphthalene sulfonate, benzene sulfonate, and chlorobenzene sulfonate. The composition of claim 1, wherein the composition is substantially free of sodium 2,4,5 mesitylenesulfonate, 2,3,5 mesylenesulfonate, or combinations thereof. At least one of hypohalite or hypohalous acid bleaching component;
Soluble salts of 2,4,6 mesitylenesulfonate; And
Buffer
≪ / RTI > 11. The composition of claim 10, wherein the buffer is selected from the group consisting of carbonate, bicarbonate, borate, phosphate, silicate, borate, and combinations thereof. 11. The composition of claim 10, wherein the buffer is a carbonate. 11. The composition of claim 10, wherein the composition comprises from about 0.01% to about 10% by weight of a buffering agent. 11. The composition of claim 10, wherein the composition does not comprise sodium xylene sulfonate, sodium para-toluene sulfonate (Na-PTSA), naphthalene sulfonate, benzene sulfonate, and chlorobenzene sulfonate. 11. The composition of claim 10, wherein the composition is substantially free of sodium 2,4,5 mesitylenesulfonate, 2,3,5 mesitylenesulfonate, or a combination thereof. At least one of hypohalite or hypohalous acid bleaching component;
Soluble salts of 2,4,6 mesitylenesulfonate; And
Surfactants
≪ / RTI > 17. The composition of claim 16, wherein the surfactant is selected from the group consisting of anionic surfactants, cationic surfactants, nonionic surfactants, amphoteric surfactants, amphoteric surfactants, and combinations thereof. 17. The composition of claim 16, wherein the surfactant is an anionic surfactant. 17. The composition of claim 16, wherein the composition does not comprise sodium xylene sulfonate, sodium para-toluene sulfonate (Na-PTSA), naphthalene sulfonate, benzene sulfonate, and chlorobenzene sulfonate. 17. The composition of claim 16, wherein the composition is substantially free of sodium 2,4,5 mesitylenesulfonate, 2,3,5 mesitylenesulfonate, or a combination thereof.