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    • 专利摘要:
    non-corrosive concentrated degreaser for the oven the invention refers to a non-corrosive degreasing concentrate and ready-to-use formulation. in particular, non-corrosive compositions capable of removing polymerized fat as effectively as some alkali metal hydroxide (i.e., caustic) degreasers without requiring the use of personal protective equipment are disclosed.
    公开号:BR112013025156A2
    申请号:R112013025156-5
    申请日:2012-04-30
    公开日:2020-12-22
    发明作者:Nathan D. Peitersen；Gregory G. Griese
    申请人:Ecolab Usa Inc.；
    IPC主号:
    专利说明:

    F "NON-CORROSIVE OVEN CONCENTRATED DEGreaser" -
    Field of the invention The invention relates to a non-corrosive degreasing concentrate, system-> -
    Cleaning theme and methods to remove polymerized dirt.
    In particular, concentrated compositions capable of removing polymerized fat as effectively or more superior to degreasers based on more corrosive alkali metal hydroxide and higher pH (i.e., caustic).
    Fundamentals of the invention ·. As a result of several health problems and regulatory efforts, there is a significant increase in the use of zero trans fats. This has resulted in significant cleaning problems for the food industry.
    For example, food processing equipment and / or environmental surfaces become contaminated with polymerized zero-trans dirt, which is very difficult to clean.
    Zero trans fats are less stable and more prone to degradation and polymerization than trans fats or saturated fats.
    Zero trans fats can be left in the environment or cold surfaces for an extended period of time and polymerized on these surfaces, creating a difficulty in cleaning dirt.
    The longer a dirt of zero trans fat is allowed to polymerize on a surface, the more difficult it becomes to remove dirt from that surface.
    Zero trans fats vapors from a hot .20 trans zero fat source can also be collected on various surfaces and polymerized over time on these surfaces.
    The surfaces that collect these vapors can be in cold, hot or ambient temperatures and produce a difficulty in cleaning dirt on all of these surfaces.
    Zero trans fats can be burned on kitchen surfaces and then polymerize over time at an increased rate compared to a surface at a lower temperature and create soiling that is more difficult to remove than soiling. based on trans fat or similarly produced saturated fat.
    In addition, other food materials such as protein, carbohydrates and other fats can be mixed with zero trans fats which, as they polymerize, can also produce a complicated solid to remove dirt and residues than dirt. that do not contain polymerized zero-trans fats.
    Those operations that use frying and cooking are particularly affected - by polymerized grease soils, because they use zero trans fats in high volumes.
    Also, these operations commonly pass zero trans fats through tanks, pipes, pumps and other processing equipment, which has to be cleaned periodically, but may in some operations take a significant amount of time between cleanings as required by the cleaning process. specific production.
    In addition, other equipment, especially tall, outside the local piping, plumbing (external as well as internal), roofs and ceilings, heating, cooling and air conditioning surfaces at
    (HVAC), product freezers and coolers and many other surfaces at food manufacturing sites can sometimes be left for days, weeks or - months without cleaning, collecting zero trans fat contamination and making dirt 5 zero polymerized trans fat extremely difficult to remove.
    These soils can be so difficult to remove that, in some cases, it would be less expensive to replace the equipment than to pay for the labor-intensive work required to clean the surfaces properly.
    In order to allow food production operations to continue without major changes to equipment and food processing facility designs, a new cleaning method is needed to allow extended food production time and to maintain an environment safe and clean food processing system.
    Traditionally, highly alkaline and corrosive cleaning compositions are necessary to effectively remove dirt from zero trans fat.
    The commercially available degreasing products depend on the cleaning power of caustic or sodium hydroxide (see, for example, Easy Off '", Greasestrip Plus'") for polymerized grease soils.
    Often, the pH of these cleaning products is at least 12 to 13 or higher.
    In addition, the alkalinity of these cleaning products is attributed to an alkali or alkaline earth metal hydroxide, for example, sodium hydroxide (NaOH) or caustic.
    Another description of exemplary high alkalinity products is provided in Order 4
    U.S. Patent 20
    Serial No. 12 / 816,016 (deposited on June 15, 2010), incorporated herein as a reference in its entirety.
    Such products often contain sodium hydroxide between 4 to 8%. Many consumers do not want to transport and / or handle highly alkaline and corrosive compositions, as they present a variety of safety issues.
    _ 25 safety and dangers. This is a result of several requirements for people to use personal protective equipment (PPE) to reduce worker exposure to hazardous or corrosive materials.
    PPE may include, for example, safety glasses, eye wash stations, masks and other protective equipment.
    So it would be desirable! - provide a non-corrosive lower pH cleaning composition, which can break the
    , 30 polymerized zero-fat dirt structure to properly remove this type of dirt and thus clean surfaces without the need for people to use PPE.
    There are alternatives to the use of highly alkaline caustic degreasing products, including products containing monoethanolamine.
    However, these compositions are often limited, as a result of regulations related to the VOCs of the compositions.
    For example, certain products require less than 4 ° /) of monoethanolamine (or total VOCs, defined by a vapor pressure less than 0.1 mm Hg at 20 ° C) under state regulation and still need PPE as a resu! -. of alkalinity relative to that.
    Additional alternatives include non-corrosive products using cleaning agents of low alkalinity (pH around 11 to 12) that need more mechanical strength to remove dirt.
    For example, cleaning products 5 may include sodium carbonate or other sources of alkalinity non-hydroxide.
    Therefore, it would also be desirable, according to the invention, to provide cleaning compositions and methods for removing polymerized zero-trans dirt without requiring additional mechanical strength.
    Various degreasing compositions are also formulated as ready-to-use (RTU) compositions. Therefore, it is desirable to obtain a concentrated formulation according to the modalities of the invention.
    Consequently, it is an objective of the claimed invention to develop a concentrated non-corrosive degreaser that produces a solution for use with a pH below 11.5. Another objective of the invention is to develop a concentrated non-corrosive degreaser providing cleaning efficacy equal to some alkali metal hydroxide (i.e., caustic) formulations, wherein the compositions of the present invention comprise less than 1 ° /) sodium hydroxide, preferably with the exception of sodium hydroxide. Another objective of the invention is cleaning methods using a non-corrosive degreasing concentrate that does not require the use of PPE. Brief summary of the invention The non-corrosive degreaser of the present invention generally includes one or more alkaline sources, surfactant and solvent system to form a concentrated non-corrosive degreasing composition.
    In various embodiments, non-corrosive degreasing compositions may include one or more additives to modify the shape of the composition and / or the method of application.
    All components are optimized to provide a concentrated composition that can be diluted to a concentration of usable cleaning solution.
    The use of the non-corrosive degreaser of the present invention has shown an efficiency equivalent to the high alkaline corrosive degreasing compositions.
    In one aspect of the invention, methods for removing polymerized dirt include applying a non-corrosive composition having a solution pH to a dirty surface. use less than about 11.5 comprising: about 1 ° /) by weight to about 35 50 ° /) by weight of alkaline source, wherein less than about 1 ° /) by weight of said alkaline source is sodium hydroxide; about 1 ° /) by weight to about 80 ° /) by weight of surfactant; and about 1 ° /) by weight to about 90 ° /) by weight of the solvent system.
    L 4/24 In another aspect of the invention, methods for removing polymerized dirt y include the step of first diluting a concentrated non-corrosive composition having a pH of the solution in use less than about 11.5 before applying the composition non-corrosive degreaser diluted on a dirty surface with polymerized grease dirt, where personal protective equipment is not required. In further aspects of the invention, a non-corrosive degreasing composition for removing dirt from polymerized grease includes: about 1 ° /) by weight to about 50 ° /) by weight of alkaline alkaline source, where less than about of 1 ° /) by weight of said alkaline source is sodium hydroxide; about 1 ° /) in weight to about 80 ° /) in 10 weight of surfactant; and about 1 ° /) by weight to about 90 ° /) by weight of the solvent system, wherein said composition produces a usage solution having a pH less than about 11.5. + While various modalities are disclosed, in still other modalities of the present invention it will become apparent to those skilled in the art from the following detailed description, which shows and describes illustrative modalities of the invention. Consequently, the drawings and detailed description should be considered as illustrative in nature and not restrictive. Brief description of the drawings
    C '"FIG. 1 shows the aluminum corrosion test described in Example 7 which shows the protective effects of degreasing concentrates with benzyl alcohol 7 and TEA gluconate according to the modalities of the invention. Various modalities of the present invention will be described in detail with reference to the drawings, in which similar reference numbers represent similar parts over several views.The reference to various modalities does not limit the scope of the invention. modalities according to the invention and are presented for the exemplary illustration of the invention.
    Detailed description of the preferred embodiment The embodiments of this invention are not limited to particular concentrated compositions for non-corrosive oven degreasers that are less corrosive and provide a lower pH than conventional oven degreasers, which can vary and are understood by those skilled in the art. enabled. It is still to be understood that all the terminology used here is for the purpose of describing only the particular modalities, and is not intended to be limiting in any way or scope. For example, as used in this specification and the appended claims, the singular forms' 35 "one", "one" and "o" may include plural referents, unless the content clearly indicates otherwise. In addition, all units, prefixes, and symbols can be denoted in their acceptable form of Sl. Numeric ranges reported within the specification are inclusive of the numbers that define the range and include each integer within the defined range. So that the present invention can be more easily understood, certain terms. hands are defined first. Unless otherwise defined, all technical and scientific terms used here have the same meanings as commonly understood by those skilled in the art to which the modalities of the invention belong. Many methods and materials similar, modified, or equivalent to those described herein can be used in the practice of the modalities of the present invention without undue experimentation, the preferred materials and methods are described here. When describing and claiming the modalities of the present invention, the following terminology will be used according to the definitions presented below. The term "about", as used here, refers to the variation in numerical quantity that can occur, for example, through liquid handling procedures and typical measurements used to manufacture concentrates or use solutions in the real world; 15 through an inadvertent error in these procedures; through differences in the manufacture, source, or purity of the ingredients used to make the compositions or perform the methods; and the like. The term "about" also covers amounts that differ due to different equilibrium conditions for a composition that results from an initial mixing
    Particular P. Whether or not modified by the term "about", the claims include equivalences to the quantities referring to the variation in the numerical quantity that can occur. As used here, the term "cleaning" refers to a method used to facilitate or assist in removing dirt, bleaching, reducing the microbial population, and any combination thereof. The term "corrosive", as used here, refers to cleaning products in a usage solution having a large pH of about 11.5 without further evidence of "non-corrosive" effects. However, as one skilled in the art will verify, a composition having a pH below 11.5 can be considered corrosive based on the test (for example, animal testing to confirm the toxicology of a composition). Similarly, some compositions can be considered non-corrosive with a pH above 11.5 as a result of test data or consideration of buffering capabilities (ie, acid / alkaline reserve) The ratings and test for "corrosive" formulations are based on the corrosive or irritating effects of a substance and / or formulation.Another description of the test requirements (including animal or human data) is available from various regulatory agencies at the time of the present invention, including, for example, Eur Commission opéia, Directorate-General for Companies and Industries, DG ENTR / G2 Positioning Document in the Classification and Labeling of Preparations with Extreme pH Values (11.5 <pH "2) (2007).
    As used herein, the term "substantially free" refers to compositions that are completely missing from the component (for example, sodium hydroxide or any other%
    source of corrosive or caustic alkaline earth metal hydroxide) or having a small amount of the component, which the component does not affect the pH of the composition.
    The component can be present as an impurity or as a contaminant and should be less than 5 ° /) by weight.
    In another embodiment, the amount of the component is less than 0.1 ° /) by weight and in yet another embodiment, the amount of the component is less than 0.01 ° /) by weight.
    The term "substantially similar cleaning performance" generally refers to performance by means of a replacement cleaning product or replacement cleaning system, usually of the same degree (or at least not to a significantly lesser degree) cleaning or, generally, with the same expense (or at least not significantly less expense) of effort, or both, when using the replacement cleaning product or substitute cleaning system, instead of a composition 15 pH higher corrosive cleaning agent to treat a typical dirt condition on a typical substrate as described here.
    This degree of cleaning may, depending on the particular cleaning product and particular substrate, correspond to a general absence of visible dirt, or to a lesser degree of cleaning. 'The terms "VOC" or "volatile organic compounds", as used here, refer to "20 organic compounds having significant vapor pressures that are capable of preventing
    pact the environment and human health.
    Although there are several recognized definitions for VOC, according to the present invention, consumer products such as the concentrated degreaser and the use solution of the invention have VOC definitions and guidelines that regulate consumer products accordingly. California CARB regulations 25.
    Another description of these regulations available at the time of the invention is available in the California Code of Regulations, Title 17, including the Proposed Amendments for the Definition of LVP-VOC and the Consumer Product Regulations Test Methods Sections (accessed in 2011). According to these definitions there is an exemption for compounds with vapor pressures below 0.1 mm of 30 Hg at 20 ° C.
    The terms "percent by weight", "° /) by weight", and variations thereof, as used here, refer to the concentration of a substance, such as the weight of that substance divided by the total weight of the composition and multiplied by 100. It is understood that, as used herein, "percent", "° /)", and the like are intended to be synonymous with 35 "percent by weight", "° /) by weight", etc.
    The methods and compositions of the present invention can comprise, consist essentially of, or consist of the component and ingredients of the present invention, as well as other ingredients described herein.
    As used here, "which essentially consists of" means that the methods and compositions may include additional steps, components or ingredients, but only if the additional steps, components or ingredients are not W '
    materially alter the basic and new characteristics of the claimed methods and compositions.
    Non-corrosive Concentrated Degreasing Compositions The present invention relates to non-corrosive compositions that effectively clean polymerized soils.
    Non-corrosive compositions have a lower pH than traditional degreasing compositions, while providing substantially similar cleaning efficiency.
    In many embodiments, non-corrosive compositions provide superior cleaning efficiency over traditional, more corrosive and higher alkalinity compositions.
    In many embodiments of the present invention, the compositions are concentrated and suitable for the dilution to be determined according to the user's specifications for cleaning dirty surfaces, where dirt can include, for example, zero dirt. polymerized trans fat.
    Generally, the non-corrosive composition includes: a suitable alkaline source, surfactant and a solvent and / or solvent system.
    According to a preferred embodiment of the invention, the composition is non-corrosive. includes an alkaline source of monoethanolamine and / or 2- (2-aminoethoxy) ethanol, a linear surfactant 20 alkylbenzene sulfonate and a benzyl alcohol solvent and / or solvent system. . While understanding the mechanism is not necessary to practice the present invention and although the present invention is not limited to any particular mechanism of action, it is considered that, in some embodiments, benzyl alcohol provides limited water-soluble alcohol providing hydrophobicity which adds affinity for fatty subjects and acts as a plasticizer.
    Dirt, in contact with the non-corrosive degreaser, according to the invention, swells and loses adhesion from the substrate, providing a unique cleaning method compared to the use of caustic degreasers.
    Advantageously, according to the modalities of the present invention, the pH of the non-corrosive degreasing solution is less than about 11.5, less than about 10.5 or less than about 10. In In other embodiments of the present invention, the pH of the non-corrosive degreasing composition is about 10 to 11.5. The compositions provide significant safety benefits as a result of the lower non-corrosive pH range, while providing substantially similar cleaning efficacy, and in many embodiments, the superior cleaning efficacy for traditional degreasing compositions.
    According to a preferred embodiment, compositions having a pH below about 11.5 do not require PPE, while, unexpectedly, they provide the same or. substantially similar degreasing efficacy for removing dirt like compositions having a pH above about 11.5 and / or compositions including caustics.
    In another aspect, the compositions provide superior degreasing efficiency.
    As a result of the concentrated formulation provided in accordance with the invention, non-aqueous concentrates do not provide a significant pH measurement and therefore the pH measurements mentioned here refer to the resulting use solution from the concentrate of according to the invention.
    According to another embodiment of the invention, the non-corrosive degreasing composition 10 (concentrated and in use solution) is a corrosive non-aluminum composition (i.e., not corrosive to aluminum). Preferably, the compositions result in less loss of aluminum magnitudes compared to corrosive sodium hydroxide degreasing compositions.
    According to another embodiment of the invention, the compositions of the invention result in no loss of aluminum mass with application.
    According to another advantageous embodiment of the invention, the non-corrosive degreasing composition is compatible with substrates having catalytic converters (for example, surfaces treated with converters to eliminate smoke, such as in ovens). Catalytic converters are often a precious metal (for example, platinum) and 20 are treated or applied to substrate surfaces, such as ovens.
    Another advantage. The feature of the present invention is that no residual inorganic substrates that would not be burned in the degreasing process (ie, sodium hydroxide) remain on the treated surface and / or subject the treated surface.
    Sources of A / ca / inity 25 The non-corrosive concentrated degreasing compositions according to the invention include at least one source of alkalinity.
    Examples of alkaline sources suitable for use in the compositions according to the invention include amines, alkanol amines, carbonates and silicates.
    For example, the source of alkalinity may include sodium silicate, sodium metasilicate, sodium orthosilicate, sodium phosphate, sodium polyphosphate, sodium borate, sodium carbonate, potassium silicate, potassium metasilicate, potassium orthosilicate potassium, potassium phosphate, potassium polyphosphate, potassium borate, potassium carbonate, lithium silicate, lithium metasilicate, lithium orthosilicate, lithium phosphate, lithium polyphosphate, lithium borate, lithium carbonate, 2- (2 -aminoethoxy) ethanol, monoethanamine, diethanolamine, triethanolamine, mixed isopropanolamines, morpholine, n, n-dimethyl ethanolamine and combinations thereof.
    Preferred embodiments of the invention include the use of an alkanolamine, preferably monoethanolamine, diethanolamine, 2-amino-2-methyl-1-propanol, monoisopropyl
    panol amine, diisopropanolamine and / or 2- (2-aminoethoxy) ethanol for the alkalinity source.
    B According to an embodiment of the invention, the alkaline source of alkanolamine is selected from the group consisting of monoethanolamine, diethanolamine, monoisopropanol W
    W amine, 2- (2-aminoethoxy) ethanol and combinations thereof. Particularly preferred alkaline sources include monoethanolamine and / or 2- (2-aminoethoxy) ethanol. Mono-tanolamine is believed to act as a penetrant to the dirty surface. In addition, monoethanolamine may have additional solvent activity in the non-corrosive degreasing compositions of the present invention. According to another embodiment of the invention, the alkaline source of alkanol amines (or combination of sources) is formulated to maximize the monoethanolamine content without exceeding the maximum allowable concentration for the VOC limits of the acceptable product. As a result, the monoethanolamine concentration is maximized to provide increased cleaning potential of the non-corrosive product without exceeding the acceptable VOC limit. According to an embodiment of the invention, diethylene glycol alkanolamine is combined with monoethanolamine to obtain a VOC suitable for the concentrated and in use solution. According to an embodiment of the invention, the VOC of the concentrated composition does not exceed about 19.25 °. According to another embodiment of the invention, the VOC of the use solution does not exceed about 4 ° /. According to an embodiment of the invention, a concentration of unreacted alkanolamine 20 of about 7 ° /) can be obtained as a result of the combination of 2- (2-aminoethoxy) ethanol at about 3 ° /) in use ( about 12 ° /) of concentrate). In some embodiments, the concentrated non-corrosive degreasing compositions of the present invention comprise about 1% by weight to about 50% by weight of an alkalinity source in the concentrated composition. In some embodiments, the source of alkalinity is present between about 5% by weight to about 50% by weight of the cleaning composition. In still other embodiments, the cleaning compositions comprise about 10% by weight to about 50% by weight of an alkalinity source. It should be understood that all values and ranges between these values and ranges are covered by the present invention as well as dilutions of the concentrate. According to the invention, the source of alkalinity of the non-corrosive composition in the concentrated composition includes less than about 1% by weight sodium hydroxide or other source of caustic alkaline earth metal hydroxide. Preferably, according to the invention, the source of alkalinity of the non-corrosive composition in a solution in use includes less than about 1% by weight of sodium hydroxide or other source of alkaline earth metal hydroxide. caustic. According to another embodiment of the invention, the source of alkalinity of the non-corrosive composition comprises sodium hydroxide or any other source of corrosive or caustic alkaline earth metal hydroxide in an amount that increases the pH of the solution using less than or about 0.5 pH units. Most preferably, the source of alkalinity of the non-corrosive composition is substantially free of hydroxide.
    | "sodium or any other source of corrosive or caustic alkaline earth metal hydroxide) ca. In a more preferred embodiment, the source of alkalinity of the non-corrosive composition does not include sodium hydroxide or any other source of metal hydroxide corrosive or caustic aicalino earthenware Advantageously, the combination of monoethanol amine and / or 2- (2-aminoethoxy) ethanol, according to the invention, acts as a non-corrosive dirt penetrant and does not require use combined with sodium hydroxide, as observed in the art at the time of the invention.
    Surfactant The concentrated non-corrosive degreasing compositions according to the invention include at least one surfactant. The emulsifying properties of surfactants, according to the invention, can be used both for a concentrate that can be diluted to produce a usable cleaning product (dilution use) and for the use dilution itself. Advantageously, according to the invention, the formulation provides a concentrate. This is distinct from the prior art which provides degreasing compositions in RTU formulations, which are often a result of the difficulty in adding "thickeners (eg polymers, xanthan gums, clay particles, etc.), to 20 um concentrate as a result of the elimination of any excess water from the concentrated formulation.Without being limited to a particular mechanism of the invention, the present invention uses gel flexing of suitable surfactants described here, such that when surfactants are emulsified in a concentrated formulation no additional water is required and thickening occurs on dilution, to a solution of use through the formation of stick-like micelle structures or liquid crystalline.
    The surfactant or mixture of surfactants may have foaming or deformation characteristics in the composition as required by a desired cleaning method. For example, in certain applications, long-lasting foam may be required, which can extend the cleaning time on a surface for compositions. In certain applications, it may be desirable to minimize foaming, and a surfactant or surfactant system that provides reduced foaming can be used. In addition, it may be desirable to select a surfactant or surfactant system that exhibits foam that decomposes relatively quickly, so that the composition can be recovered and reused with an acceptable amount of downtime. The surfactant or surfactant system can be selected depending on the particular polymerized dirt that is to be removed. Surfactants that can be used according to the invention include
    anionic, nonionic, cationic and zwitterionic soatives, which are commercially available from various sources. For a discussion of surfactants, see Kirk-Othmer, Encyclopedia of Chemical Technoiogy, Third Edition, volume 8, pages 900 - 912. The description> of additional suitable surfactants is presented in US Patent Application Serial No. 5 12 / 816,016 (filed on June 15, 2010), both references that are incorporated here as a reference in their entirety. The surfactants described here can be used alone or in combination. In particular, non-ionic and anionic can be used in combination. Semi-polar, cationic, amphoteric and zwitterionic nonionic surfactants can be used in combination with nonionic or anionic surfactants. The above examples are merely specific illustrations of the numerous surfactants, which may find application within the scope of this invention. It should be understood that the selection of particular surfactants or combinations of surfactants can be based on several factors including compatibility with the surface to be cleaned at the intended use concentration and the intended environmental conditions 15 including temperature and pH.
    L In addition, the level and degree of foaming under the conditions of use and subsequent recovery of the composition can be a factor in selecting the particular surfactants and mixtures of surfactants. According to an embodiment of the invention, the foaming properties and viscosity of surfactants are suitable for use having applications on vertical surfaces. According to a preferred embodiment of the invention, linear alkylbenzene sulfonate binds to the benzyl alcohol of the concentrated degreasing compositions while providing suitable foaming properties. In some embodiments, the non-corrosive concentrated degreasing compositions of the present invention comprise about 1% by weight to about 80 ° /% by weight of a surfactant in the concentrated composition. In some embodiments, the surfactant is present at about 5 ° /) by weight to about 75 ° /) by weight of the concentrated cleaning composition. In still other embodiments, the concentrated cleaning compositions comprise about 2 ° /) to about 25 ° /) by weight of surfactant. It should be understood 30 that all values and ranges between these values and ranges are covered by the present invention. So / vente System The concentrated non-corrosive degreasing compositions according to the invention include at least one solvent or a solvent system. In various embodiments of the present invention, the non-corrosive composition can include at least one cleaning agent comprising a solvent or solvent system. The solvent or solvent system can be used to improve the cleaning properties of the composition
    non-corrosive grease, as well as to provide emulsifying properties of a given composition.
    For example, the solvent system, according to the invention, can maintain the hydrophilic and hydrophobic components of the specific composition from the seeding. stop.
    The emulsifying properties can be used both for a concentrate 5 that can be diluted to produce a usable cleaning product (use solution) and for the use dilution itself.
    Representative solvents and solvent systems can include one or more different solvents including aromatic alcohols, alkanol amines, ether amines, esters and mixtures thereof.
    Representative solvents can include acetamidophenol, acetanilide, 10 acetophenone, 2-acetiP1-methylpyrrole, benzyl acetate, benzyl alcohol, methyl benzyl alcohol, alpha phenyl ethanol, benzyl benzoate, benzyloxyethanol, ethylene glycol phenyl ether (commercially available as " DOWANOL EPh "from Dow Chemical Co.), propylene glycol phenyl ether (commercially available as" DOWANOL PPh "from Dow Chemical Co.), amyl acetate, amyl alcohol, butanol, 3-butoxyethyl-2-propane !, acetate butyl, n-15 butyl propionate, cyclohexanone, diacetone alcohol, diethoxyethanol, diethylene glycol ethyl ether, diisobutyl carbinol, diisobutyl ketone, dimethyl heptanol, dipropyl | ether | tert-butyl ether |, ethanol , ethyl acetate, 2-ethylhexanol, ethyl propionate, ethylene glycol methyl ether acetate, hexanol, isobutanol, butyl isoacetate, isobutyl heptyketone, isophorone, isopropanol, to isopropyl acetate, methanol, methyl amyl alcohol, methyl n-amyl ketone , 2-methyl-1-butanol, methyl 20 ethyl ketone, methyl isobutyl ketone, l-pentanol, n-pentyl propionate, l-propanol, n-propyl acetate, n-propyl propionate, propyl | ethyl ether | ico |, tripropylene glycol methyl ether (commercially available as DOWANOL TPM from Dow Chemical Co.), tripropylene glycol n-butyl ether (commercially available as DOWANOL TPNB from Dow Chemical Co.), diethylene glycol n-butyl ether acetate (commercially available as 25 Butyl CARBITOL acetate from Dow Chemical Co.), diethylene monobutyl ether | (commercially available as Dow Chemical Co.'s Butyl CARBITOL), ethylene glycol n-butyl ether acetate (commercially available as Dow Chemical Co.'s Butyl CELLOSOLVE acetate), ethylene monobutyl ether | (commercially available as Dow Chemical Co.'s BUTyl CELLOSOLVE), dipropylene glycol monobutyl ether (commercially available as Dow Chemical Co.'s Butyl DIPROPASOL.TM.), propylene glycol monobutyl ether (commercially available as Dow's Butyl PROPASOL Chemical Co.), ethyl 3-ethoxypropionate (commercially available as UCAR Ester EEP from Dow Chemical Co.), 2,2,4-Trimethyl-1,3-Pentanediol Monoisobutyrate (commercially available as UCAR Filmer IBT from Dow Chemical Co- ), diethylene glycol monohexyl ether (commercially available as Hexow CARBITOL from Dow Chemical Co.), ethylene glycol monohexyl ether (commercially available as Hexow CELLOSOLVE from Dow Chemical Co.), diethylene glycol monomethyl ether ( commercially available as Methyl CARBITOL from
    Dow Chemical Co.), monoethyl ether of diethylene | (commercially available as "CARBITOL from Dow Chemical Co.), ethylene ether acetate [(commercially available as Methyl CELLOSOLVE acetate from Dow Chemical Co.), monomethyl ether, ethylene glycol (commercially available as Methyl CELLOSOLVE from Dow Chemical Co.), 5 dipropylene glycol monomethyl ether (commercially available as Methyl DIPROPASOL from Dow Chemical Co.), propylene glycol methyl ether acetate (commercially available as Methyl PROPASOL acetate from Dow Chemical Co.), monome ether - propylene glycol lithium (commercially available as Metyl PROPASOL from Dow Chemical Co.), diethylene monopropyl ether (commercially available as Propyl 10 CARBITOL from Dow Chemical Co.), ethylene glycol monopropyl ether (commercially available available as Propyl CELLOSOLVE from Dow Chemical Co.), dipropylene glycol monopropyl ether (commercially available as Propyl DIPROPASOL from Dow Chemical Co.) and monopropyl ether propylene glycol (commercially available as Propyl PROPASOL from Dow Chemical Co.). Representative dialkyl carbonates include dimethyl carbonate, diethyl carbonate, dipropyl carbonate, diisopropyl carbonate and dibutyl carbonate.
    Representative oils include benzaldehyde, pinenes (alphas, betas, etc.), terpenes, terpinenes, carvone, cinnamaldehyde, borneol and their esters, citrals, ionenes, jasmine oil, Iimonene, dipentene, linalool and their esters.
    Representative dibasic esters included. in dimethyl adipate, dimethyl succinate, dimethyl glutarate, dimethyl malonate, 20 diethyl adipate, diethyl succinate, diethyl glutarate, dibutyl succinate, glutarate. dibutila and products available under the trade names DBE, DBE-3, DBE-4, DBE-5, DBE-6, DBE-9, DBE-IB, and DBE-ME from DuPont Nylon.
    Representative phthalate esters include dibutyl phthalate, diethylhexyl phthalate and diethyl phthalate.
    Preferred solvents for polymerized non-trans fatty dirt humectant include benzyl alcohol, dibasic esters, essential oils, dialkyl carbonates, ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, ethylene glycol ether | |, propylene glycol phenyl ether and mixtures thereof.
    Representative alkanol amines include 2- (2-aminoethoxy) ethanol, monoethanolamine, diethanolamine, triethanolamine, mixed isopropanolamines, morpholine, n, n-dimethyl ethanolamine and mixtures thereof. According to an embodiment of the invention, the solvent system includes aromatic alcohols (for example, benzyl alcohols, phenyl alcohols). Preferably, the aromatic alcohol solvent system is benzyl alcohol.
    According to another embodiment, the solvent system may include benzyl acetate, benzyl alcohol, methyl benzyl alcohol, alpha phenyl ethanol, benzyl benzoate, benzyloxyethanol and / or the like.
    The further description of 35 solvent systems that can be included in the compositions according to the invention is disclosed in the U.S. Patent Application
    Serial No. 12 / 816.016 (filed June 15, 2010), incorporated herein as a reference in its entirety.
    According to a preferred embodiment of the invention, the solvent is benzyl alcohol. The solvent may further include solvents in a limited and similar water solubility range as benzyl alcohol, including for example benzyloxyethanol and / or benzyloxypro-
    W panol. In some embodiments, the concentrated, non-corrosive degreasing compositions of the present invention comprise about 1% by weight to about 90 ° by weight of a solvent system in the concentrated composition. In some embodiments, the solvent system is present at about 5% by weight to about 75% by weight of the cleaning composition. In still other embodiments, the complete cleaning compositions comprise about 30 ° / 0 by weight to about 60 ° /) by weight of a solvent system. It should be understood that all values and ranges between these values and ranges are covered by the present invention. Uses of Use According to one embodiment of the invention, a dilution use of the concentrated composition can vary from about 1: 1 to about 1:10. The average dilution ranges are also suitable according to the present invention. More preferably, a dilution use of about 1: 3 to about 1: 6 is obtained from the concentrated composition. Preferably, a dilution use of the concentrated composition contains me-. than about 1 ° /) by weight sodium hydroxide or another source of caustic alkaline earth metal hydroxide 20. à As one skilled in the art will verify, as a result of the disclosure of this invention, a usage solution can be generated according to the particular needs of a user and its application. For example, concentrated non-corrosive degreasing compositions, according to the invention, can be diluted in a use solution that has a particular VOC limit and / or ethanolamine concentration. According to an embodiment of the invention, the concentrated non-corrosive degreasing composition can be diluted to about 25 ° / ethanolamine (w / w), in which the upper limit of a non-corrosive solution is obtained and may or may not be require the use of PPE. Alternatively, according to one embodiment of the invention, the concentrated non-corrosive degreasing composition can be diluted to about 14 ° / ethanolamine (w / w), in which no PPE is required. Additives The concentrated non-corrosive degreasing compositions according to the invention can optionally include one or more additives to modify the shape of the composition and / or application method. According to an embodiment of the invention, the non-corrosive concentrated composition can include from about 0.01% by weight to about 10% by weight of one or more additives.
    Suitable additives according to the invention may include, for example, dyes (product safety / identification), flavors, corrosion inhibitors and / or enzymes. According to another embodiment of the invention, various thickeners would be useful according to
    W 'with the invention. Suitable thickeners may include, for example, gums (i.e., xanthine, carrageenan, etc.), polymers (i.e., polyacryates and similar modified polymers), inorganic particles (i.e., clay silicates, such as Laponite ' "), and surfactants for the purpose of providing viscosity. Various additional additives suitable for use in accordance with the invention are disclosed in US Patent No. 6,916,773 and US Patent Application No." Serial 12 / 816,050 and 12 / 816,016 (each, deposited on June 15, 2010), which 10 are incorporated here as a reference in their entirety. Methods of Use The non-corrosive degreasing compositions of the invention can be used in a variety of methods to clean dirty surfaces. In one embodiment, the present invention is a method for cleaning polymerized grease stains. Cleaning methods 15 generally use the non-corrosive degreasing compositions described above. In certain embodiments, an environmental cleaning method is provided. In other embodiments, an in-place cleaning (ClP) method is provided. According to the modalities of the invention, non-corrosive degreasing compositions can be used in any other methods that aim to remove polymerized dirt without requiring the use of corrosive formulations, such as the removal of polymerized or cross-linked films from floors and other finishes. Advantageously, non-corrosive degreasing compositions do not require the use of personal protective equipment as a result of the pH below about 11.5 In addition, non-corrosive degreasing compositions obtain degreasing action within about 5 seconds a few minutes of contact with a dirty surface. According to a preferred embodiment of the invention, aa application of non-corrosive degreasing compositions results in the removal of dirt within about seconds without requiring substantial mechanical action or excessive temperatures. The methods of the present invention result in cleaning efficacy, at least the same as that obtained with the use of highly alkaline corrosive compositions of the prior art. According to the invention, methods of using non-corrosive degreasing compositions result in substantially similar dirt removal efficacy as traditional corrosive compositions having a pH greater than about 11.5. In 35 additional aspects, the methods of using non-corrosive degreasing compositions result in superior dirt removal compared to traditional corrosive compositions having a pH greater than about 11.5.
    Exemplary industries, in which the present methods can be used include, but are not limited to: food service industry; food and beverage industry; consumer degreasing applications; oil processing industry - »oil; industrial agriculture and ethanol processing; and the pharmaceutical industry.
    Proper use for the compositions and methods of the invention may include, for example, oven cleaner, including microwave ovens, general degreaser, fryer degreaser, smoke cleaner, floor cleaner, exhaust cleaner , drain cleaner, floor cover remover, floor cleaner, fryer cleaner, pan and skillet cleaner, carpet spotter, pharmaceutical and cosmetic cleaner, instrument cleaner, cleaner tar, and the like.
    The present methods can also be used to remove dirt except for polymerized dirt.
    Other soils include, but are not limited to, starch, cellulosic fibers, protein, simple carbohydrates and combinations of any of these types of soil with mineral complexes.
    Examples of specific food soils that are effectively removed using the present methods include, but are not limited to, soils generated in the manufacture and processing of meat, poultry, vegetables and fruit, bakery products, soft drinks, beers and waste products. fermentation, dirt generated in the processing of sugar beet and sugar cane and processed foods containing these ingredients and associated ingredients, such as juices, sauces and condiments (for example, fruit juices, ketchup, tomato sauce, tomato sauce, barbecue). These dirt can develop. on environmental surfaces, such as walls and floors, freezer and cooling systems, surfaces of heat exchange equipment, transport surfaces and on other surfaces during the manufacturing and packaging process.
    C / P Cleaning Methods 25 ClP cleaning methods can be used to clean a wide variety of processing equipment, including, but not limited to fryers, various freezer or refrigerated systems, evaporators, heat exchangers (including tr - tube-in-tube dryers, direct steam injection, and gasketed plate heat exchangers), heating coil re-crystallizers (including steam, flame or heated fluid heat exchanger), mixing crystallizers, dryers spraying, drum dryers, and tanks.
    In addition, ClP cleaning methods can be used to clean environmental areas including, but not limited to entire areas containing food processing equipment and associated walls, ceilings, floors in addition to plumbing (external and internal), as well as others air treatment systems. 35 In one embodiment, a ClP method is provided.
    This method is adapted to remove polymerized dirt from internal components of tanks, pipes, pumps and other processing equipment used to process product streams typically.
    liquid, including zero trans fat streams in addition to the external surfaces of such equipment that can be cleaned in an automated manner in an enclosed area. This method generally involves the passage of the non-corrosive degreasing composition in
    W a solution of use through a processing system without disassembling any 5 components of the system and then returning to normal processing. Non-corrosive degreasing compositions can be used in any known CIP method. In some cases, the method includes passing the following liquids through a processing system: a first wash, a cleaning cycle using the high alkalinity composition described here; a second wash and possibly a neutralization or hygienic wash and possibly a final wash. The first wash can include another cleaning composition or hot or cold water. The second wash often includes hot or cold water and is used to remove the non-corrosive degreasing composition and residual dirt. An additional wash can be used to neutralize or sanitize the equipment to be cleaned, which may or may not require a final wash 15 to remove residual neutralization or final wash and is often ignored in order to prevent contamination of the equipment with bacteria after cleaning In certain cases, the ClP method includes a step of heating the non-corrosive degreasing composition in an in-use solution to a temperature of about 100 ° F (37.78 ° C) or above. In various embodiments of the present invention, the method includes a step of heating the non-corrosive degreasing composition in a solution of use at a temperature of about 100 ° F (37.78 ° C) to about 200 ° F (93.33 ° C), from about 140 ° F (60 ° C) to about 180 ° F (82.22 ° C). The inventors have found that non-corrosive degreasing compositions have improved cleaning characteristics for difficult polymerized soils. 25 Exemplary industries, in which the present methods can be used include, but are not limited to: the food and beverage industry; oil processing industry; industrial agriculture and ethanol processing; and pharmaceutical industry. Environmental Cleaning Methods In another embodiment, an environmental cleaning method is provided. This method is adapted to remove polymerized dirt from environmental surfaces, which includes, but is not limited to walls, floors, dishes, cutlery, pots and pans, ovens and fryers. This method usually involves contacting an environmental surface with a non-corrosive degreasing composition. In certain cases, the environmental method includes a step of heating non-corrosive degreasing compositions to a temperature of about 40 ° F (4.44 ° C) or above, 40 ° F (4.44 ° C) to about 130 ° F (54.44 ° C). In other cases, environmental methods provide for removing dirt from surfaces at an ambient temperature, for example, about 50 ° F (10 ° C) to about 100 ° F (37.78
    ° C). In other cases, the methods provide for removing dirt from "cooler temperature surfaces, for example, about 25 ° F (-3.89 ° C) to about 50 ° F (10 ° C). in other cases, the methods may require application on environmental surfaces that vary from 0 ° F (-17.78 ° C) to about 200 ° F (93.33 ° C), which may exist in the 5 proximity within a facility to be cleaned (for example freezer coils and hot grease pipes, respectively). Again, in general, the non-corrosive degreasing composition shows enhanced beneficial cleaning characteristics when applied to surfaces contaminated with difficult polymerized dirt. The compositions do not need to be heated to remove polymerized dirt (dirt that has a lower level of polymerization due to less time to polymerize or under lower temperature conditions during polymerization). In some embodiments, the environmental method includes contacting an environmental surface with non-corrosive degreasing compositions for a sufficient amount of time, such that the composition penetrates the dirt to be removed. 15 The length of time required for dirt to penetrate will depend on the thickness of the dirt, as well as the relative polymerization level of the dirt. In such cases, it is preferable that the non-corrosive degreasing composition includes a high foaming surfactant system or a thickening system, so that the composition does not dry and remains hydrated on the surface for an extended period of time. 20 All publications and patent applications in this specification are indicative of the level of common skill in the technique to which this invention belongs. All publications and patent applications are hereby incorporated by reference to the same extent as if each individual publication or patent application was specifically and individually indicated as a reference. Examples Modalities of the present invention are further defined in the following non-limiting Examples. It should be understood that these Examples, while indicating certain modalities of the invention, are given by way of illustration only. From the above debate and these Examples, a person skilled in the art can determine the essential characteristics of this invention, and without departing from its spirit and scope, can make several changes and modifications to the modalities of the invention to adapt it to various uses and conditions. Thus, several modifications of the modalities of the invention, in addition to those shown and described here, will be evident to those skilled in the art from the preceding description. Such modifications are also intended to fall within the scope of the appended claims 35.
    Example 1 Preparation of polymerized Corn Oil Panels. Corn oil sludge was
    were prepared on 3x5 inch (7.62x12.7 cm) stainless steel panels by lightly covering the corn oil using a 2 inch (5.08 cm) polyurethane brush. The panels were coated to ensure that no trace of exposed steel remains - and any excess oil was removed using only the weight of the brush. The 5 panels were then placed on an aluminum tray and baked in a 375 ° F (190.56 ° C) oven for approximately 20 minutes until the polymerized oil was no longer sticky and showed a light amber color. After approximately 10 minutes of cooking the oil begins to polymerize and become thick and smoke develops from the oil. The formwork must be rotated to ensure that the panels are evenly heated in the oven. The panels are then left to cool overnight before testing with cleaning / degreasing formulations. There are several regulatory control standards for non-corrosive products. According to an initial embodiment of the invention, a bleached formulation contains about 16% alcohol! benzyl and 7 ° /) monoethanolamine while providing 15 a non-corrosive eye rating. The formulation was tested according to the application and removal of dirt from the corn oil panels described above. The formulation obtained complete removal of dirt (12480-35) within 3 minutes of contact. The observed dirt removal appeared to result from the swelling of dirt from the panel surface causing severe adhesion. 20 Example 2 Additional formulations that eliminate sodium from the degreaser formulation were prepared and analyzed according to the removal of dirt from the corn oil panels described in example 1. Monoethanolamine was used to replace sodium. The improved performance and the reduction of potential residues in catalytic converters for, 25 convection microwave ovens and other applications were tested. A formulation of benzyl alcohol, monoethanolamine, linear alkylbenzene sulfonate and water was tested) (forming a clear solution). The formulation obtained complete removal of the dirt (12480- '35) within 3 minutes of contact.
    Example 3 30 Additional formulations were analyzed to determine the minimum amount of linear alkyl benzene sulfonate needed in a concentrated degreaser to bind or solubilize benzyl alcohol. The impact of formulation changes was also tested against the VOC levels of the solution used for the formulation. A formulation of benzyl alcohol, monoethanolamine, 2- (2-aminoethoxy) ethanol, linear alkylbenzene suifonate 35 and water was tested and obtained a clear solution.
    Example 4 A solution for using a commercially available corrosive degreaser
    (Greasestrip PLUS (7 ° /) sodium hydroxide), Ecolab lnc., St. Paul, MN) was compared to a non-corrosive degreaser (Greasecutter NC (4 ° /) monoethanolamine), · Ecolab lnc. , St. Paul, MN). Three drops of each of the two degreaser formulations were dispensed via pipette to a panel of prepared corn oil (as described 5 in example 1). After approximately 12 minutes of contact, the corn oil dirt area treated with Greasestrip PLUS begins to disintegrate. In 15 minutes the panels were rinsed. The Greasestrip PLUS-treated area of the panel was completely clean, while the Greasecutter NC was virtually unaffected (slight discoloration and '10 light fixation sensation). This demonstrates that a 4% solution of MEA alone as the active components can exhibit dramatically lower performance in some soils than traditional alkali hydroxide products.
    Example 5 An assessment of the pH of the usage solutions was also conducted. The effect of benzyl alcohol 15 on the pH of the solutions used was studied. A formulation according to the invention with varying amounts of benzyl alcohol with linear alkylbenzene sulfonate, 2- (2-aminoethoxy) ethanol and Monoethanolamine was tested. The formulation was stirred for 30 minutes until the linear alkylbenzene sulfonate neutralized and dissolved in the solution. Benzyl ALCOHI was added to the solution and the pH measured as shown in table 1.
    20 Table 1 Benzyl alcohol pH of the formulation Og (O ° / o) 10.80 4g (1 ° / 0) 10.73 4g (2%) 10.68 8g (4%) 10.64 8g (6%) 10 , 53 12g (9%) 10.60 8g (11%) 10.61 9.25g {13.31 ° / 0) 10.63 The pH initially decreased to a minimum of approximately 10.53 by approximately 6 ° /) benzyl alcohol. As the concentration of benzyl alcohol increased beyond this point, the pH started to rise. Although not intended to be limited according to a particulate theory of mechanism of action, ethanolamines can be partially solubilized or coordinated in the microemulsion of linear alkylbenzene sulfonate and benzyl alcohol, which can reduce proton acceptance.
    Example 6 Effect on the effectiveness of removing polymerized oil from aluminum. The aluminum safety of the formulations of the invention has been studied. The effectiveness of the non-corrosive degreaser according to the invention was compared to Fat Cutter Plus (Ecolab Inc., St.
    · Paul, MN) when applied to aluminum trays with soiled corn oil (dirt conducted according to the materials and methods of Example 1).
    Hydrogen gas immediately forms as an indication of corrosion of aluminum "from the reaction of NaOH with aluminum, and after 7 minutes of exposure to surface + is visibly blurred, whereas the non-corrosive degreaser according to the invention did not communicate no visible signs of corrosion.
    Example 7 The effect of degreasing compositions on the corrosion of aluminum surfaces was evaluated. The relative change in the level of ash (i.e., corrosion) of aluminum trays with dirt from corn oil (dirt conducted according to the materials and methods of Example 1) is shown in FlG. 1 for the various sample products evaluated in Table 2.
    Table 2 EX-AEX-BEX-C EX-D EX-E EX-FEX-G BENZYL ALCOHOL i8,6l970) i! 13.1) Diethylene glycol monobutyl ether)) 1! Í! L5) ETHANOLAMINE! 4 0 | 4.0) 4.0 and 4 0! l079 | 4.0) Sodium hydroxide l)! ) l 072! 4 0l sodium carbonate)! i I! 6t7 i Ethanolamine dodecylbenzene sulfonate j3,2j3,2 | 3.2) i) Í 4.7 i 2- (2-aminoethoxy) ethanol) 0.7-0.91 0.7! ) i | 2t3) I acetic acid, (ethylenedinitrile) tetra-, te- salt | (sodium) (i) 5.3 l potassium phosphate! ! ) i 0.8 i. acetic acid, (ethylenedinitrile) tetra-, tetrasodium salt) i) 1.5) silicic acid, sa! potassium i l! )) 0.4! Triethanolamine gluconate (TEA gluconate) l 0.4) i (i) i! 0.4) Sodium gluconate l) i i) l 0.6 i alcohols, c10-14, ethoxylates! ! ): i 4} 0 l Glycolic acid, monosodium salt i)! )) 0.4 i sodium lauryl ether sulfate)! ii Q3 i amines, coco a | qui | dimethi [a, n-oxides) ill 0.2) i-propanamine, 3-amino-n- (carboxymethyl) -n, n-)) dimethi1-, derivatives of n -acyl coconut, internal salts; l)) 0.6) Polyglycoside alkyl ii! )) i 1,2! Xylenesulfonic acid, sodium salt l)) i! 579) Xanthan gum)) 0.1 l) 0.3 l water (hardness of 5 grains per gallon in Examplej 83.1 i 82.9) 92.1) 93.6) 77.2 i 91.5 ) 75.5 l A other than 0 gpg for RTUS) pH) 10.62) 10.66l10.91l12.02i12.17 13: 6010.61i jTime to remove cooked corn oil at 72j 3:47 i 3:49 i > 45:00)> 45:00)> 45: 00l 2:35) 2:15 ° F (22.22 ° C) (min: s)) Time to remove boiled corn oil a) 0:50) 0:53)> 25: 0oj25: 0oj25: 00) 1:04 l 0:45 i 120 ° F (48.89 ° C) (min: s)
    In example F, the pH reading exceeded the electrode range where a sodium error can occur. The pH was probably closer to 13.88.
    "Exempio's formulations demonstrate the beneficial use of benzyl alcohol and TEA glutamine .4 in non-corrosive degreasing compositions and the contribution to the protection of aluminum. In addition, orders of magnitude improvement over caustic degreasers. Conventional (i.e., Example 6) are shown in both Table 3 and FlG. 1. The compositions according to the invention provide at least equivalent and preferably superior degreasing performance.
    Table 3 Minutes EX-C EX-B EX-D EX-A EX-F EX-E 1) 2.9! 3.9) 10.3 l 5.1 i 62.3 i 2.4 2 | 2.8) 1.0! 56.9! 3 108 8.2 A 3 i 13.0! 4.4 Í 72.5 A_ 4 107 6.1 _J 6! 49.3 i 3; 3! 73.0) 0 102 14.9 _J 10 i 73.1 | 12.3 i 72.5 _Á_ 0 0! 98.9 i 10.7 30 l 83.8 i 45.9! 79.0 l 14.1) 104.1! 18.4 10 Example 8 Additional corrosion tests for corrosion were analyzed using the formulations of Examples A and D of Example 7. Tables 4 and 5 show the initial and final corrosion measurements for aluminum samples immersed in degreasing compositions. "to.
    15 Table 4 7075 Aluminum from Example A Final Sample 1 5715.6 5687.7 2 5748.8 5720.9 Corrosion of MPY (thousand / year) 229.07 Corrosion of MPY (thousand / year) 229.07 Table 5 Aluminum 7075 from Example D Sample Final Start 1 5764.6 5527.4 2 5755.6 5516.8 Corrosion of MPY (thousand / year) 1947.49 20 Corrosion of MPY (thousand / year) 1960.63 Tables 4 and 5 show that Example A is significantly less corrosive to aluminum, and meets the DOT guidelines for classification as a non-corrosive material. The definition of corrosive DOT includes products that require a corrosive label 25 with corrosion rates exceeding 250 thousand per year (MPY) in steel or aluminum (see, 49 CFR 173,137; NACE Standard TMO169-76; ASSTM G31-72 (approved in 2004)). The MPY calculation for corrosion is (((weight loss in mg) x (534)) / (panel area x time in hours x metal density)).
    - Example 9 ±, "The micro efficacy of the formulations of Examples A and D of Example 7 was evaluated in order to determine whether the formulation of Example A less corrosive can play an effective biocide as' 5. cleaning of the food contact surface after an exposure time of 30 seconds and the efficacy of cleaning the non-contact surface after an exposure time of 5 minutes at room temperature in the formulations of Example A and Example D against Staphy / ococcus aureus (ATCC 6538) and Escherichia co / i (ATCC 11229).
    '10 The efficacy of cleaning the food contact surface was evaluated using Staphy / ococcus aureus (ATCC 6538) with average inoculum numbers of 1.4 x 10' CFU / mL and Escherichia co / i (ATCC 11229) with average inoculum numbers of 1.1 x 10 'CFU / mL. The micro efficacy against Staphy / ococcus aureus is shown in table 6 and against Escherichia co / i is shown in table 7.
    15 Table 6 Substance of Survivors Survivor on average Reduction Percentage of test i (CFU / mL) i (CFU / mL)) Log reduction l Example A) "10," 10 i "10 i 7.14> 99.99999 ° / , | ExampleD j6.6x10 ', 6.9x10') 6.75 x 10 '| 0.3 51.8 ° /, Table 7 Substance of Survivors Survivor on average Reduction Percentage of test! (CFU / mL)! (CFU / mL)) Reduction log i Example A l "10," 10) "10 i 7.0 99.99999 ° /,! Example DI "10," 10 i "10 I 7.0 99.99999 ° /, The cleaning efficacy of the non-food contact surface was assessed using Staphy / ococcus aureus (ATCC 6538) and Escherichia co / i (ATCC 11229) with average inoculum numbers shown in table 8.
    20 Table 8 '| Organ | smol. Control square # 1) Control square # 2: Control square # 3 Media. . i! S. aureus) 2.2 x 10 'i 2.4 x 10'! 2.5 x 10 '2j'j, ")! E. co / i) 2.5 X 10' i 9 X 10 '! 2.5 X 10' 3jj," "j Micro-efficacy against Staphy / ococcus aureus is shown in table 9 and against Es-, cherichia co / i is shown in table 10.
    Table 9 Test substance Survivor on average (CFU / mL) Reduction Log Percentage of reduction Example A l <2.5X 10 ')> 6.0! > 99.9999 ° /, None i None i None Example D i Reduction) Reduction) Reduction Table 10
    .
    24/24 Survivor Substance on average Percentage ^. test (CFU / mL) Reduction Log reduction ~ Example A <2.5x 10 '> 2.52 99.92 ° /, "" Example D <2.5x10'> 2.52 99.92 ° /, and Effectiveness cleaning of the food contact surface. Formulation A of non-corrosive degreaser obtained a reduction percentage> 99.999 with an exposure time of 30 seconds at 25 ° C against Staphy / ococcus aureus ATCC 6538 and Escherichia co / i ATCC 11229, demonstrating the effectiveness for use as a sanitizer of the food contact surface. Degreaser formulation D achieves a reduction percentage> 99.999 with an exposure time of 30 seconds at 25 ° C against Escherichia coli ATCC 11229 only. Only a reduction percentage of 51.8 with a 30-second exposure at 25 ° C was obtained against Staphylococcus aurus ATCC 6538. 10 Effectiveness of cleaning the surface other than contact with food. Formulation A of non-corrosive degreaser obtained a reduction percentage> 99.9 with an exposure time of 5 minutes at room temperature both against Staphy / ococcus aureus ATCC 6538 and Escherichia co / i ATCC 11229. However, formulation D corrosive obtained a reduction percentage> 99.9 with an exposure time of 5 minutes 15 in the ambient temperature against Escherichia co / i ATCC 11229 and had no reduction with an exposure time of 5 minutes in the ambient temperature against Staphy / ococcus aureus ATCC 6538. * The inventions being so described, it will be obvious that they can be varied in many ways. Such variations should not be considered as a departure from the spirit and scope of the inventions and all such modifications are intended to be included within the scope of the following claims.
    <
    权利要求:
    Claims (10)
    [1]
    1. Non-corrosive degreasing composition to remove dirt from skin fat CHARACTERIZED by the fact that it comprises: (i) from 1% by weight to 50% by weight of alkaline source selected from the group consisting of monoethanolamine, diethanolamine, 2 -amino-2-methyl-1-propanol, monoisopropanolamine, diisopropanolamine, 2- (2-aminoethoxy) ethanol and combinations thereof; (ii) from 1% by weight to 80% by weight of surfactant, wherein the surfactant comprises linear alkylbenzene sulfonate; and (iii) from 1% by weight to 90% by weight of the solvent system, wherein the solvent system comprises benzyl alcohol and triethanolamine gluconate; and wherein said composition generates an alkaline solution for use having a pH less than 11.5; and wherein said composition contains less than 1% by weight of alkali metal hydroxides.
    [2]
    2. Method for removing polymerized grease dirt CHARACTERIZED by the fact that it comprises: applying a non-corrosive degreasing composition, as defined in claim 1, to a surface soiled with polymerized grease to remove polymerized grease dirt from said surface .
    [3]
    3. Method, according to claim 2, CHARACTERIZED by the fact that the surface is selected from the group consisting of food processing and environmental equipment surfaces, such as walls, floors and various equipment used during food preparation.
    [4]
    4. Method, according to claim 3, CHARACTERIZED by the fact that the application of the non-corrosive degreasing composition does not require the use of personal protective equipment.
    [5]
    5. Method, according to claim 2, CHARACTERIZED by the fact that the composition is emulsified to form an alkaline solution for use or diluted to an alkaline solution for use having a pH less than 11.5.
    [6]
    6. Method, according to claim 2, CHARACTERIZED by the fact that the alkaline source comprises from 10% by weight to 50% by weight of the composition.
    [7]
    7. Method, according to claim 2, CHARACTERIZED by the fact that the surfactant additionally comprises anionic surfactants in addition to linear alkylbenzene sulphonate, non-ionic surfactants, cationic surfactants, zwitterionic surfactants or combinations thereof.
    [8]
    8. Method for removing polymerized grease dirt CHARACTERIZED by the fact that it comprises:
    dilute the non-corrosive degreasing composition, as defined in claim 1; applying said diluted non-corrosive degreasing composition to a surface soiled with polymerized grease dirt, where personal protective equipment is not necessary; and penetrating polymerized grease dirt with said non-corrosive degreasing composition.
    [9]
    9. Method according to claim 8, CHARACTERIZED by the fact that the alkaline source is monoethanolamine and / or 2- (2-aminoethoxy) ethanol.
    [10]
    10. Method, according to claim 8, CHARACTERIZED by the fact that the surfactant additionally comprises anionic surfactants in addition to linear sulphonate alkylbenzene, non-ionic surfactants, cationic surfactants, zwitterionic surfactants or combinations thereof.
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    同族专利:
    公开号 | 公开日
    US20120295829A1|2012-11-22|
    AU2012260540A1|2013-09-26|
    WO2012160462A2|2012-11-29|
    ES2663201T3|2018-04-11|
    AU2012260540B2|2015-07-09|
    JP6276372B2|2018-02-07|
    EP2710106B1|2018-01-31|
    US9994798B2|2018-06-12|
    MX2013013136A|2014-02-17|
    CA2829761A1|2012-11-29|
    CA2829761C|2019-01-29|
    EP2710106A2|2014-03-26|
    CN103582695A|2014-02-12|
    JP2017052969A|2017-03-16|
    US9023782B2|2015-05-05|
    US20180258372A1|2018-09-13|
    EP2710106A4|2014-11-19|
    JP6054951B2|2016-12-27|
    MX361656B|2018-12-13|
    CN112553017A|2021-03-26|
    WO2012160462A3|2013-03-28|
    US20150203791A1|2015-07-23|
    JP2014518918A|2014-08-07|
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    法律状态:
    2021-01-05| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2021-01-05| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-06-15| B07A| Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]|
    2021-12-07| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    2021-12-14| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    优先权:
    申请号 | 申请日 | 专利标题
    US201161488254P| true| 2011-05-20|2011-05-20|
    US61/488,254|2011-05-20|
    PCT/IB2012/052161|WO2012160462A2|2011-05-20|2012-04-30|Non-corrosive oven degreaser concentrate|
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