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NL2034826B1 - Cleaning formula - Google Patents

Cleaning formula Download PDF

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Publication number
NL2034826B1
NL2034826B1 NL2034826A NL2034826A NL2034826B1 NL 2034826 B1 NL2034826 B1 NL 2034826B1 NL 2034826 A NL2034826 A NL 2034826A NL 2034826 A NL2034826 A NL 2034826A NL 2034826 B1 NL2034826 B1 NL 2034826B1
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Netherlands
Prior art keywords
alkali
composition
soluble
chelator
atoms
Prior art date
Application number
NL2034826A
Other languages
Dutch (nl)
Inventor
Robert Andre Fiore Mathieu
Original Assignee
Lumiforte Holding B V
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Publication date
Application filed by Lumiforte Holding B V filed Critical Lumiforte Holding B V
Priority to NL2034826A priority Critical patent/NL2034826B1/en
Priority to PCT/NL2024/050245 priority patent/WO2024237788A1/en
Application granted granted Critical
Publication of NL2034826B1 publication Critical patent/NL2034826B1/en

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    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66Non-ionic compounds
    • C11D1/72Ethers of polyoxyalkylene glycols
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/04Water-soluble compounds
    • C11D3/044Hydroxides or bases
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/20Organic compounds containing oxygen
    • C11D3/2075Carboxylic acids-salts thereof
    • C11D3/2086Hydroxy carboxylic acids-salts thereof
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10Objects to be cleaned
    • C11D2111/14Hard surfaces
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10Objects to be cleaned
    • C11D2111/14Hard surfaces
    • C11D2111/20Industrial or commercial equipment, e.g. reactors, tubes or engines

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Detergent Compositions (AREA)

Abstract

The invention provides a composition for removing an alkali-soluble polymeric coating from a surface, said composition when diluted in water to a dry matter content of 5 — 20 wt.% having a pH of 8.5 — 12, and said composition comprising a base and at least one of a non-ionic surfactant and a chelator consisting of only C, H and O-atoms. Said cleaning composition has improved cleaning performance. The composition further provides methods for using the said composition, and uses of said composition for cleaning.

Description

P134729NL00
Title: Cleaning formula
Background
Various alkali-soluble polymeric coatings exist, often used as a shading paint on for example greenhouses. A shading paint allows for increasing shade inside a greenhouse, with the aim of decreasing temperature and increasing plant growth, in particular during the hot periods of the year (late spring and summer), and/or in hot climates. An alkali-soluble shading paint is a shading paint in which the binder is a polymeric binder bearing free acid groups on the polymeric chain, such as for example described in
WO 2018/169404 or WO 99/22588. An alkali-soluble shading paint is to be distinguished from polysaccharide-based shading paints, for which application and removal function by a chemically different mechanism than for an alkali-soluble shading paint.
In temperate zones, a shading paint is generally removed from a greenhouse when the hottest period is over, for example in autumn and in winter. This allows to maximize the light in fall from outside light, which decreases the need for artificial light, and thus decreases energy expenditure.
Removal of alkali-soluble shading paints is generally done with a cleaner.
Said cleaner for an alkali-soluble shading paint has high pH of about 13, in order to solubilize the alkali-soluble polymeric binder of the shading paint.
Said cleaner may further comprise solubilization aids, such as for example a surfactant and/or a chelator, such as for example described in WO 2018/169404. Cleaning compositions are generally distributed in concentrated form, such as 5 — 20 wt.% dry matter content, which can be (but need not be) diluted on sight prior to use.
The surfactant in existing cleaners is generally an anionic surfactant, such as a sulfonic acid surfactant, e.g. an alkylbenzene sulfonic acid.
The chelator in existing cleaners is generally an aminopolycarboxylate chelator, such as an N-substituted glutamate substituted with two acetic acid moieties.
Existing cleaners are generally functional to clean for example greenhouses coated with alkali-soluble shading paint. However, cleaning is laborious, and requires large quantities of the cleaner, in high concentration. In addition, the high pH of 13 and beyond makes CLP labelling of the formula a requirement, resulting in more complicated transportation, storage and use of the product. Thus, there exists a need for an optimized cleaning composition, which has higher cleaning efficiency, and which allows for cleaning with better environmental profile and reduced risk management linked with the handling of corrosive materials. The present invention provides such cleaning composition.
Figures
Figure 1: glass plate cleaned from an alkali-soluble shading paint following the general cleaning procedure using formula 1. Cleaning performance 6/10
Figure 2: glass plate cleaned from an alkali-soluble shading paint following the general cleaning procedure using formula 2. Cleaning performance 7/10
Figure 3: glass plate cleaned from an alkali-soluble shading paint following the general cleaning procedure using formula 3. Cleaning performance 4/10
Figure 4: glass plate cleaned from an alkali-soluble shading paint following the general cleaning procedure using formula 4. Cleaning performance 4/10
Figure 5: glass plate cleaned from an alkali-soluble shading paint following the general cleaning procedure using formula 5. Cleaning performance 9/10
Figure 6: glass plate cleaned from an alkali-soluble shading paint following the general cleaning procedure using formula 6. Cleaning performance 2/10
Figure 7: glass plate cleaned from an alkali-soluble shading paint following the general cleaning procedure using formula 7. Cleaning performance 7/10
Detailed description
The invention provides a composition for removing an alkali-soluble polymeric coating from a surface, said composition diluted in water to a dry matter content of 5 — 20 wt.% having a pH of 8.5 — 12, and said composition comprising e a base e a non-ionic surfactant and/or a chelator consisting of only C, H and O- atoms.
The composition of the invention is a cleaning composition, formulated for removing an alkali-soluble polymeric coating from a surface. It is an advantage of the invention that the present cleaning composition can be distributed and/or used at a favorably low pH of 8.5 — 12, which is environmentally more benign than existing cleaning compositions. The low pH furthermore reduces damage (such as corrosive damage) to the surface from which the alkali-soluble polymeric coating is removed.
It is a further advantage of the invention that the present cleaning composition, despite the low (less alkaline) pH, provides for more efficient cleaning. This is unexpected, because an alkali-soluble polymeric coating would be expected to be more efficiently removed using a cleaning composition of higher (more alkaline) pH. Nonetheless, the present cleaning composition of pH 8.5 — 12 is found to more efficiently clean an alkali- soluble coating, than existing cleaning formulas having pH 13 or higher.
It has furthermore been found that at low pH, the introduction of a non- ionic surfactant increases the cleaning efficiency further than may have been expected. The low pH acts synergistically with the non-ionic surfactant, to vastly enhance cleaning efficiency.
Also, at low pH, the introduction of a chelator consisting of only C, H and O- atoms increases the cleaning efficiency further than may have been expected. The low pH acts synergistically with the chelator, to vastly enhance cleaning efficiency.
Vast synergy has been observed when combining a non-ionic surfactant and a chelator consisting of only C, H and O-atoms at low pH in the cleaning composition.
The cleaning composition comprises a base. The base is preferably a strong base, which is generally understood to mean a base which fully dissociates in water. The base is preferably an alkali metal hydroxide, more preferably sodium or potassium hydroxide.
The base can be present in the cleaning composition in a quantity of 0.001 — 5 wt.%, preferably 0.01 — 3 wt.%, more preferably 0.1 — 2 wt.%, relative to dry weight. The concentration in a concentrated aqueous cleaning composition having a dry matter content of 5 — 20 wt.% is preferably 0.01 — 3 wt.%, preferably 0.01 — 2 wt.%, relative to the total weight.
The cleaning composition further comprises a non-ionic surfactant and/or a chelator consisting of only C, H and O-atoms (the “chelator”).
The non-ionic surfactant can be any non-ionic surfactant, as generally known in the art. The non-ionic surfactant can be an alcohol- or ether-based surfactant, such as for example a polysorbate, a sorbitan alkyl ester (such as
Span or polysorbate), a poloxamer, an alkyl phenol ether, or an alkyl alcohol. A non-ionic surfactant does not comprise ionic groups; i.e. amphoteric surfactants are not considered non-ionic, in the present context.
In preferred embodiments, the non-ionic surfactant is a linear alcohol- or ether-based surfactant. Linear in this context is to be interpreted as generally linear, as opposed to branched-chain (a main chain having a backbone of N atoms length substituted with at least one side chain, wherein (the shortest of) said side chain(s) has a backbone of at least 0.2 N atoms length) or cyclic (comprising a cyclic group) surfactants.
A linear alcohol- or ether-based surfactant, in the present context, comprises a linear chain having a backbone of N atoms, which chain may optionally be substituted with small side groups, said small side groups having a backbone of at most 0.15 N atoms length, preferably at most 0.1 N atoms 5 length. A length of N atoms, in this context, refers to the number of consecutively bonded multivalent atoms forming the chain, multivalent atoms being atoms which are bonded by covalent bonds to at least 2 other atoms. This means, colloquially, that terminal atoms such as hydrogen or fluor are not considered atoms comprised in the length of the linear chain or of the small side group; the length of the chain is determined by the number of consecutively bonded multivalent atoms, preferably C and O atoms (although in some cases, N, S and other atoms may also be present as multivalent atoms).
In particular, the presence of one or more methyl side groups on a non-ionic surfactant is not considered to detract from a non-ionic surfactant being linear. A preferred linear alcohol- or ether-based surfactant is a poloxamer and a linear alkyl alcohol, in particular a mixture comprising one or more
C4 — C24 linear alkyl alcohols.
A poloxamer is generally known in the art as a surfactant. A poloxamer is a linear block copolymer comprising in a central part of the linear chain a block of propylene glycol units (polyoxypropylene), and on at least one end point (preferably on both end points) of the linear polyoxypropylene chain, a block of polyethylene glycol units (polyoxyethylene or poly(ethylene oxide)).
Preferably, a poloxamer is a linear block copolymer consisting of a central block of polyoxypropylene, flanked on both sides by a block of polyoxyethylene. The polyoxypropylene block and the polyoxyethylene blocks may have varying proportions, as is known in the art. Poloxamers are marketed under trade names such as Pluronic, Synperonic or Tergitol.
A linear alkyl alcohol is also generally known in the art as a surfactant. A linear alkyl alcohol comprises a linear alkyl group, preferably a fatty alcohol (a C4 — C24 saturated or unsaturated linear alkyl chain with a terminal hydroxy group, preferably a C4 — C20 or a C6 — C24 saturated or unsaturated linear alkyl chain with a terminal hydroxy group, more preferably a C8 — C20 saturated or unsaturated linear alkyl chain with a terminal hydroxy group. In much preferred embodiments, the linear alkyl chain is saturated or mono-unsaturated, most preferably unsaturated).
In preferred embodiments, the fatty alcohol is a C10 — C24 saturated or unsaturated linear alkyl chain with a terminal hydroxy group, more preferably C12 — C24.
The terminal hydroxy group is preferably ethoxylated, preferably with 1 — 20, more preferably 1 - 10 units of ethylene oxide, so as to provide the terminal hydroxy group on the terminal end of the ethoxylate moiety of the linear alkyl alcohol.
Thus, the linear alkyl alcohol preferably comprises a C4 — C24 linear alkyl alcohol ethoxylate, preferably a C10 — C24 linear alkyl alcohol ethoxylate, more preferably a C12 — C24 linear alkyl alcohol ethoxylate. The linear alkyl alcohol may comprise a mixture of different C4 — C24 linear alkyl alcohol ethoxylates.
In much preferred embodiments, the non-ionic surfactant comprises at least one linear alkyl alcohol, most preferably C4 — C24 linear alkyl alcohol ethoxylate, preferably a C10 — C24 linear alkyl alcohol ethoxylate, more preferably a C12 — C24 linear alkyl alcohol ethoxylate.
The non-ionic surfactant may be present in the cleaning composition in a quantity of 5 - 35 wt.%, preferably 10 — 30 wt.%, more preferably 15 — 25 wt.%, relative to the dry weight of the composition. The concentration in a concentrated aqueous cleaning composition having a dry matter content of
— 20 wt.% is preferably 0.5 — 5 wt.%, more preferably 1 — 4 wt.%, relative to the total (wet) weight.
The chelator is calcium chelator. The chelator can be carboxylic acid-based or alcohol-based. The chelator may be associated with one or more 5 counterions. Association with counterions may be of particular relevance for chelators comprising one or more carboxylic acid or carboxylate groups.
Thus, a chelator in the present context may be the chelating portion of a carboxylate chelator.
The chelator of the invention is a chelator consisting of only C, H and O- atoms. Any counterions, if present, may comprise or consist of further atoms than only C, H and O-atoms. Thus, any counterions are not as such part of the chelator, although the chelator as present in the composition may be associated with one or more counterions.
For example, a preferred chelator is citrate, which may be present in the composition as sodium citrate. The chelator citrate consists of only C, H and
O-atoms; the one or more sodium atoms of sodium citrate are the counterion(s), not part of the definition of the chelator.
The chelator of the invention is preferably a chelator consisting of only C, H and O-atoms comprising a 1,2,3-substition pattern, wherein said substitution is with carboxylic acid groups and/or hydroxy groups. More preferably, the chelator is a chelator consisting of only C, H and O-atoms comprising a tricarboxylate moiety and/or a 1,2,3-trihydroxy moiety. Even more preferably, the chelator consists of only C, H and O-atoms, and comprises a hydroxy-1,2,3-tricarboxylate moiety, more preferably a 2- hydroxy-1,2,3-tricarboxylate moiety. In most preferred embodiments, the chelator is a 2-hydroxypropane-1,2,3-tricarboxylic acid chelator, most preferably sodium or potassium 2-hydroxypropane-1,2,3-tricarboxylate.
The chelator preferably has a molar mass of 100 — 500, preferably 100 — 400
Da.
The chelator may be present in the cleaning composition in a quantity of 50 — 90 wt.%, preferably 55 — 80 wt.% relative to the dry weight of the composition. The chelator concentration in the a concentrated aqueous cleaning composition having a dry matter content of 5 — 20 wt.% 1s preferably 4 — 20 wt.%, more preferably 5 — 15 wt.%, relative to the total (wet) weight.
In preferred embodiments, the cleaning composition comprises a base and a non-ionic surfactant as herein defined. In alternative preferred embodiments, the cleaning composition comprises a base and a chelator consisting of only C, H and O-atoms as herein defined. In further, much preferred embodiments, the cleaning composition comprises a base and a non-ionic surfactant (as herein defined), and a chelator consisting of only C,
H and O-atoms (as herein defined).
In preferred embodiments where both a chelator as herein defined and a surfactant as herein defined are present, the mass ratio between the chelator and the surfactantis 1: 1-20 : 1, preferably 1: 1 15: 1, more preferably 1:1 — 10: 1, most preferably 1:15: 1.
The cleaning composition is for removing an alkali-soluble polymeric coating from a surface. An alkali-soluble polymeric coating, in this context, is preferably a polymeric coating based on a polymer binder comprising carboxylic acid groups. Preferably, the polymer binder has an acid value, determined according to ISO 2114, of at least 40 mg KOH/g polymer.
Further preferably, the polymer binder is preferably characterized by a weight average molecular weight of from 2000 to 50000 g/mole, preferably 3000 — 40000 g/mole, more preferably 4000 — 30000 g/mole, said weight average molecular weight being measured using size exclusion chromatography (SEC) against a polystyrene standard, as is known in the art. Further preferably, the polymer binder comprises a polyacrylate binder.
The alkali-soluble polymeric coating is preferably an alkali-soluble shading paint. An alkali-soluble shading paint is a reflective alkali-soluble polymeric coating comprising a pigment and a polymer binder as defined above comprising carboxylic acid groups.
The pigment in an alkali-soluble shading paint can be any pigment usable in a coating. Preferably, the pigment is a reflective pigment, which renders the coating a reflective coating. A reflective coating can be used to modulate the light reflection from a manmade structure such as a building or greenhouse. A reflective pigment is well-known in the art of shading paint.
Usable types of reflective pigment include for example chalk, calcium carbonate, titanium dioxide, titanium silicate, gypsum, talc, silica, aluminosilicate or baryte, or a combination of one or more of these pigments.
A reflective coating (shading paint), in the present context, is used to increase light reflection from a surface. In embodiments where the surface is or comprises a transparent panel, the coating enhances shade under the surface, thereby decreasing light and temperature under the transparent panel. This is a well-known application of a shading paint, for example on a greenhouse.
A reflective coating may also be applied to a substantially non-transparent panel, such as a wall and/or a roof of a building. In this case, the effect of the coating is in particular temperature reduction inside the building. Light reduction (“shading”) is only a relevant effect in case of an occasional window in the roof or wall of said building. “Substantially non-transparent”, in this context, refers to a surface in which at most 20 % of the surface is fully or partially transparent, such as by the presence of windows.
A shading paint applied to a substantially non-transparent surface modulates light reflection from said surface. This can mean that the temperature below the said surface is decreased. Removal of the shading paint from such surfaces reverses the effect of inside temperature reduction, thereby increasing the inside temperature.
In some embodiments, the coating may comprise an adsorptive pigment, which is preferably black or otherwise colored. An example is carbon powder. Such a pigment may also modulate light reflection, for example by enhancing light absorption.
The pigment can be present in the alkali-soluble shading paint in a weight ratio of polymeric binder to pigment in the range of 20:1 to 1:15, preferably in the range of 15:1 to 1:5. Typically, in an alkali-soluble shading paint, the weight ratio of polymeric binder to pigment may be 2:1 or smaller, generally 1:1 or smaller. The specific ratio may depend on the type of pigment used.
An alkali-soluble shading paint can be used on for example greenhouses in order to decrease the quantity of incoming light in the greenhouse (“shading”), and/or to concomitantly reduce the temperature inside the greenhouse by increasing the light reflection.
The present cleaning composition can be used to remove an alkali-soluble shading paint from any surface provided with an alkali-soluble coating, including, for example, removal of an alkali-soluble shading paint from walls and roofs of a greenhouse. The pH of 8.5 — 12.0 of the cleaning composition ensures that the surface to be cleaned using the cleaning composition is not or not significantly affected.
The cleaning composition can be a powder composition suitable for dilution with water. In this embodiment, the cleaning composition is a free-flowing powder. A free-flowing powder is a powder in which all ingredients are particulated, having a particle size of 0.05 — 4.0 mm, preferably 0.1 — 2.5 mm.
The powder composition preferably has a dry matter content of more than 85 wt.%, preferably more than 90 wt.%. If the cleaning composition is a powder composition, optional ingredients may be present which facilitate dispersion and/or dissolution in water, so as to allow for on-site dilution. The skilled person can apply common general knowledge in order to identify suitable dispersion and/or dissolution aids.
The cleaning composition can also be an aqueous composition. In this embodiment, the composition of the invention is an aqueous liquid having a dry matter content of 5 — 60 wt.%, preferably 5 — 50 wt.%, more preferably 5 — 40 wt.%, even more preferably 5 — 30 wt.%, most preferably 5 — 20 wt.%.
The aqueous liquid is preferably a homogenous liquid. In some embodiments, at most 20 vol.%, preferably at most 10 vol.%, more preferably at most 5 vol.% of an environmentally acceptable organic solvent may be present in the aqueous liquid, such as ethanol, a higher alcohol such as propanol, butanol, heptanol or hexanol, or benzyl alcohol. Ethanol or benzyl alcohol are preferred.
Preferably however, the aqueous liquid comprises only water as the medium in which the base, the non-ionic surfactant and/or the chelator consisting of only C, H and O-atoms are dispersed. Using only water has the advantage that it is environmentally benign and does not pose additional labeling requirements relative to the use of (only) water.
At dry matter contents of 5 wt.% and higher, an aqueous composition of the invention is considered a concentrated cleaning composition. A concentrated cleaning composition can be used for cleaning as such, but preferably, the concentrated cleaning composition is diluted on site prior to use, for example with 1 — 10, preferably 2 — 8, mass equivalents of water. A concentrated cleaning composition is preferably diluted on-site to a dry matter content of 0.3 — 10 wt.%, preferably 0.5 — 5.0 wt.%, more preferably 0.5 — 4.9 wt.%, most preferably 0.7 — 3.0 wt.%, so as to allow for efficient use of the cleaning composition.
Thus, dry powder cleaning compositions and concentrated cleaning compositions are preferably diluted on site prior to applying the cleaning composition to the surface, to the indicated dry matter contents.
The cleaning composition may optionally comprise further ingredients. In one embodiment, the cleaning composition comprises an antifoam agent
The antifoam agent may oil-based, water-based, silicone-based or acrylate- based. In preferred embodiments, the antifoam agent is silicone-based or water-based.
Water-based antifoam agents comprise fatty acid esters or fatty alcohol esters, preferably short-chain fatty acid esters, such as C4 — C8 fatty acid esters or C4 — C8 fatty alcohol esters. A preferred water-based antifoam agent is a sorbitan ester, preferably a sorbitan linear alkyl ester, such as sorbitan octanoate.
A silicone-based antifoam agent comprises a silicone compound; a hydrophobic silica dispersed in silicon oil. In preferred embodiments, the silicone-based antifoam agent may be an emulsion in oil or in water of the silicone-compound.
In much preferred embodiments, the antifoam agent comprises fatty acid esters or fatty alcohol esters, preferably a sorbitan ester, more preferably a sorbitan linear alkyl ester such as sorbitan octanoate.
The antifoam agent is preferably present in a quantity of 0.25 — 5 wt.%, preferably 0.5 — 3.0 wt.%, relative to the dry weight of the cleaning composition. The antifoam concentration in a concentrated aqueous cleaning composition having a dry matter content of 5 — 20 wt.% is preferably 0.01 — 2.5, more preferably 0.05 — 1.5 wt.%, relative to the total (wet) weight.
In a further preferred embodiment, the cleaning composition comprises a thickener. A thickener in this context is any compound which increases the viscosity of the cleaning composition without substantially altering further properties. Thickeners suitable for the present cleaning composition include for example starch or a gum, such as pectin, guar gum, locust bean gum, agar, alginin, xanthan and carrageenan. A gum is preferred, in particular xanthan gum.
The thickener is preferably present in a quantity of 0.25 — 5 wt.%, preferably 0.5 — 3.0 wt.%, relative to the dry weight of the cleaning composition. The thickener concentration in a concentrated aqueous cleaning composition having a dry matter content of 5 — 20 wt.% is preferably 0.01 — 2.0, more preferably 0.05 — 1.0 wt.%, relative to the total (wet) weight.
In a further preferred embodiment, the cleaning composition does not comprise a hydrotrope. A hydrotrope is a compound that aids in solubilizing hydrophobic compounds in an aqueous environment without forming micellar structures. An example of a hydrotrope is cumene sulphonate, or, alternatively, xylene sulphonate.
In preferred embodiments, the cleaning composition does not comprise a starch-degrading enzyme, such as an alpha-amylase ([EC 3.2.1.1]) or a beta- amylase ([EC 3.2.1.2]).
In much preferred embodiments, the cleaning composition comprises both a thickener (as defined above) and an antifoam agent (as defined above).
The invention furthermore provides a method for removing an alkali-soluble polymeric coating, preferably a reflective alkali-soluble polymeric coating such as an alkali-soluble shading paint, from a surface, said method comprising the steps of e providing a surface comprising an alkali-soluble polymeric coating, preferably an alkali-soluble shading paint; e contacting the alkali-soluble polymeric coating with the aqueous cleaning composition for removing an alkali-soluble polymeric coating described above at a dry matter content of at least 0.3 wt.%, said composition when diluted in water to a dry matter content of 5 — 20 wt.% having a pH of 8.5 — 12.0; e allowing the aqueous composition to solubilize the polymeric coating; and e removing the solubilized polymeric coating from the surface.
The alkali-soluble polymeric coating and the aqueous cleaning composition have been described above.
The aqueous cleaning composition is used at a dry matter content of at least 0.3 wt.%. Preferably, the aqueous cleaning composition is used for cleaning at a dry matter content of 0.3 — 10 wt.%, preferably 0.5 — 5.0 wt.%, more preferably 0.5 — 4.9 wt.%, most preferably 0.6 — 4.0 wt.%, even more preferably 0.7 — 3.0 wt.%.
The surface which may be cleaned from the alkali-soluble polymeric coating can be any surface. Preferably, the surface is a weather-exposed surface of a manmade structure, such as an outside surface of a building or greenhouse, such as a roof or a wall of a building, or a roof or a wall of a greenhouse, as described in detail elsewhere.
Contacting the alkali-soluble polymeric coating with the aqueous cleaning composition can be done by any means known in the art. The composition can be applied by brushing, spraying or other means. Spraying is preferred, such as by hand spraying, by helicopter or by drone, using a container and appropriate spraying equipment.
Solubilization of the alkali-soluble polymeric coating can take any time, such as from 1 minute to several hours. Preferably, the aqueous composition is allowed to solubilize the polymeric coating for a period of at least 5 minutes, preferably at least 30 minutes.
Removing the solubilized polymeric coating from the surface can be achieved by any means known in the art. Preferred means are rinsing with water and/or wiping, preferably rinsing with water. Rinsing with water may be achieved by spraying water over the surface, or by allowing rainfall to rinse the surface.
This provides a surface which is essentially cleaned from the polymeric coating. “Essentially cleaned” means that the coating is removed for at least 80 %, preferably at least 90 %, more preferably at least 95 %. This has the effect of modulating the light reflection and/or the temperature on or below the surface. The invention thus also provides a method for modulating the light reflection and/or the temperature on or below a surface, said method comprising the steps recited above. The surface is preferably an outside wall or roof of a building or an outside wall or roof of a greenhouse.
The invention furthermore provides use of a composition according to any of claims 1 — 5 for modulating the light reflection and/or the temperature on or below a surface, preferably a weather-exposed surface of a manmade structure, most preferably an outside wall or roof of a building or an outside wall or roof of a greenhouse. Temperature and light reduction below the surface thus means temperature reduction on the other side of the surface which is cleaned from the polymeric coating, hence, in case of a building or greenhouse provided with a polymeric coating on an outside surface, temperature and light is reduced inside of the building or greenhouse.
In preferred embodiments, said modulation comprises, - in case of an at least partially transparent surface (such as the outside walls of a greenhouse) provided with a reflective alkali-soluble polymeric coating (such as an alkali-soluble shading paint), decreasing light reflection off the surface and/or increasing the temperature on or below the surface; and/or - in case of a substantially non-transparent surface (such as a wall or roof of a building) provided with a reflective alkali-soluble polymeric coating such as an alkali-soluble shading paint, increasing the temperature on or below the surface; and/or - in case of a substantially non-transparent surface provided with an absorptive alkali-soluble polymeric coating, decreasing the temperature on or below the surface.
EXAMPLES
Materials and methods
Cleaning compositions were prepared on the basis of the recipes provided below. The compositions were prepared by slow addition of the different components while stirring to obtain optimal dispersion of raw materials. For some raw materials, additional stirring time is necessary to obtain a homogeneous dispersion.
Cleaning performance was evaluated as follows:
Eclipse LD alkali-soluble shading paint was applied on a glass plate at a dilution of 1:3 (in line with the instructions). The shading paint was allowed to dry for 24 hours. The cleaning formula to be tested was diluted with 6 mass equivalents of water, and applied to half of the coated glass plate, taking care not to contact the other half of the glass plate with a cleaning composition.
The cleaning composition was allowed to solubilize the coating for a period of 24 hr, whereupon the surface was rinsed with water. The result is expressed as the “cleaning performance”, expressed on a scale of 0 (very poor) to 10 (very good) by visual evaluation. The test glass plates are shown in the figures.
Example 1: reducing pH increases cleaning performance formula 1 DM quantity Drywt.%. formula 2 DM quantity Dry wt.%
Water Water (added) 0 66.3 Water (added) 0 73.35
Antifoam SAG 1575 33 0.1 0.23 SAG 1575 33 0.1 0.28
Thickener Kelzan AR 100 0.5 3.6 Kelzan AR 100 0.5 4.26
Hydrotrope Eltesol SC40 40 4 11.4 Eltesol SC40 40 4 13.6
Surfactant Tensaryl SBU 100 2 14,2 Tensaryl SBU 100 2 17.02 pH modifier NaOH 33% 33 7.15 16.7 NaOH 33% 33 0.05 0.14
Chelator Dissolvine GL38 38 20 53.9 Dissolvine GL38 38 20 64.7 water total 85.9 Water total 88.3 pH 13.5 10
Dry matter 14.1 11.7
Cleaning performance 6 7 example 2: replacing an anionic surfactant ("tensaryl SBU") for a non-ionic surfactant ("berol 360") decreases cleaning performance (at high pH) formula 1 DM quantity Drywt% formula3 DM quantity Drywt.%
Water Water 66.3 Water 0 66.3
Antifoam SAG 1575 33 0.1 0.23 SAG 1575 33 0.1 0.23
Thickener Kelzan AR 100 0.5 3.6 Kelzan AR 100 0.5 3.55
Hydrotrope Eltesol SC40 40 4 11.4 Eftesol SC40 40 4 11.4
Surfactant Tensaryl SBU 100 2 14.2 Berol 360 100 2 14.2 pH modifier NaOH 33% 33 7.15 16.7 NaOH 33% 33 7.15 16.7
Chelator Dissolvine GL38 38 20 53.9 Dissolvine GL38 38 20 53.9 water total 85.9 85.9 pH 13.5 13.5
Dry matter 14.1 14,1
Cleaning performance 6 4 example 3: replacing an aminopolycarboxylate chelator ("dissolvine GL38") for a chelator consisting of only C, H and O-atoms ("sodium citrate") decreases cleaning performance (at high pH) formula 1 DM quantity Drywt% formula4 DM quantity Dry wt.%
Water Water 0 66.3 Water 0 66.3
Antifoam SAG 1575 33 0.1 0.23 SAG 1575 33 0.1 0.12
Thickener Kelzan AR 100 0.5 3.6 Kelzan AR 100 0.5 1.89
Hydrotrope Eltesol SC40 40 4 11.4 Eltesol SC40 40 4 6.04
Surfactant Tensaryl SBU 100 2 14.2 Tensaryl SBU 100 2 7.55 pH modifier NaOH 33% 33 7.2 16.7 NaOH 33% 33 7.2 8.90
Chelator Dissolvine GL38 38 20 53.9 Na-citrate 100 20 75.5 water total 85.9 73.5 pH 13.5 13.5
Dry matter 14.1 26.5
Cleaning performance 6 4 * the quantity of CHO-based chelator is given as the quantity of sodium citrate, for ease of reproduction. example 4: reducing pH and replacing an aminopolycarboxylate chelator ("dissolvine GL38") for a chelator consisting of only C, H and O-atoms ("sodium citrate") and an anionic surfactant ("tensaryl SBU") for a non-ionic surfactant ("berol 360") at low pH much increases cleaning performance. formula 5 DM quantity Dry wi.%
Water Water 0 87.035
Antifoam Natrasense LF8 100 0.15 1.16
Thickener Ziboxan F80 100 0.3 2.31
Surfactant Berol 360 100 2.5 19.3 pH modifier NaOH 33% 100 0.015 0.11
Chelator Na-citrate 100 10 77.1 water total 87.0 pH 10
Dry matter 13.0
Cleaning performance 9 example 5: increasing pH and replacing a chelator consisting of only C, H and O-atoms ("sodium citrate") for an aminopolycarboxylate chelator ("dissolvine GL38") decreases cleaning performance.
Dry wt.%
Formula 5 DM quantity Drywt% formula6 DM quantity if.
Water Water 0 87.0 Water 0 87.0
Antifoam Natrasense LF8 100 0.15 1.16 Natrasense LF8 100 0.15 2.21
Thickener Ziboxan F80 100 0.3 2.31 Ziboxan F80 100 0.3 443
Surfactant Berol 360 100 2.5 19.3 Berol 360 100 2.5 37.0 pH modifier NaOH 100% 100 0.015 0.11 NaOH 100% 100 0.015 0.22
Chelator Na-citrate 100 10 77.1 Dissolvine GL38 38 10 56.2 water total 87.0 93.2 pH 10 12.3
Dry matter 13.0 6.8 cleaning performance 3 2 example 6: replacing a non-ionic surfactant ("berol 360") for an anionic surfactant ("tensaryl SBU") at low pH decreases cleaning performance. formula 5 DM quantity Drywt% Formula? DM quantity Dry wt.%
Water Water 0 87.0 Water 0 86.7
Antifoam Natrasense LF8 100 0.15 1.16 Natrasense LF8 100 0.15 1.13
Thickener Ziboxan F80 100 0.3 2.31 Ziboxan F80 100 0.3 2.25
Surfactant Berol 360 100 2.5 19.3 Tensaryl SBU 100 2.5 18.8 pH modifier NaOH 100% 100 0.015 0.11 NaOH 100% 100 0.37 2.78
Chelator Na-citrate 100 10 77.1 Na-citrate 100 10 75.1 87.0 87.0 pH 10 11.5
Dry matter 13.0 13.3 cleaning performance 9 7

Claims (15)

ConclusiesConclusions 1. Een samenstelling voor het verwijderen van een alkali-oplosbare polymere coating van een oppervlak, welke samenstelling verdund in water tot een drogestofgehalte van 5 — 20 gew.% een pH van 8.5 — 12 heeft, en welke samenstelling omvat ° een base ° een non-ionische surfactant en/of een chelator bestaande uit alleen C, H en O-atomen, waarin de non-ionische surfactant bij voorkeur een non-ionische surfactant omvattende een of meer C4 — C24 lineaire alkyl alcoholen is, en waarin de chelator bij voorkeur een chelator is bestaande uit alleen C, H en O-atomen omvattende een 1,2,3-substitutiepatroon, waarbij de substitutie is met carboxylzuurgroepen en/of hydroxygroepen.1. A composition for removing an alkali-soluble polymeric coating from a surface, which composition diluted in water to a dry matter content of 5 — 20 wt.% has a pH of 8.5 — 12, and which composition comprises ° a base ° a non-ionic surfactant and/or a chelator consisting of only C, H and O atoms, wherein the non-ionic surfactant is preferably a non-ionic surfactant comprising one or more C4 — C24 linear alkyl alcohols, and wherein the chelator is preferably a chelator consisting of only C, H and O atoms comprising a 1,2,3-substitution pattern, wherein the substitution is with carboxylic acid groups and/or hydroxy groups. 2. Een samenstelling volgens conclusie 1, waarin de base een alkalimetaal hydroxide omvat, bij voorkeur natrium of kalium hydroxide.2. A composition according to claim 1, wherein the base comprises an alkali metal hydroxide, preferably sodium or potassium hydroxide. 3. Een samenstelling volgens conclusie 1 of 2, waarin de alkali- oplosbare polymere coating een reflectieve alkali-oplosbare polymere coating 18, zoals een alkali-oplosbaar schermmiddel.3. A composition according to claim 1 or 2, wherein the alkali-soluble polymer coating comprises a reflective alkali-soluble polymer coating 18, such as an alkali-soluble screening agent. 4. Een samenstelling volgens één der conclusies 1 — 3, waarin de samenstelling een poedersamenstelling is, die geschikt is om op te lossen in water.4. A composition according to any one of claims 1 to 3, wherein the composition is a powder composition suitable for dissolving in water. 5. Een samenstelling volgens één der conclusies 1 — 3, waarin de samenstelling een waterige vloeistof is met een drogestofgehalte van 5 — 60 gew.%.5. A composition according to any one of claims 1 to 3, wherein the composition is an aqueous liquid having a dry matter content of 5 to 60 wt.%. 6. Een werkwijze voor het verwijderen van een alkali-oplosbare polymere coating, bij voorkeur een reflectieve alkali-oplosbare polymere coating zoals een alkali-oplosbaar schermmiddel, van een oppervlak, welke werkwijze de stappen omvat van: ° het verschaffen van een oppervlak voorzien van een alkali- oplosbare polymere coating, bij voorkeur een alkali-oplosbaar schermmiddel; ° het in contact brengen van de alkali-oplosbare polymere coating met een waterige samenstelling hebbende een drogestofgehalte van tenminste 0.3 gew.%, omvattende een base en tenminste één van een non-ionische surfactant en een chelator bestaande uit alleen C, H en O-atomen, welke alkali-oplosbare polymere coating verdund in water tot een drogestofgehalte van 5 — 20 gew.% een pH van 8.5 — 12 heeft;6. A method for removing an alkali-soluble polymeric coating, preferably a reflective alkali-soluble polymeric coating such as an alkali-soluble screening agent, from a surface, said method comprising the steps of: ° providing a surface provided with an alkali-soluble polymeric coating, preferably an alkali-soluble screening agent; ° contacting said alkali-soluble polymeric coating with an aqueous composition having a dry matter content of at least 0.3 wt.%, comprising a base and at least one of a non-ionic surfactant and a chelator consisting of only C, H and O atoms, said alkali-soluble polymeric coating diluted in water to a dry matter content of 5 - 20 wt.% and having a pH of 8.5 - 12; . toestaan dat de waterige samenstelling de polymere coating oplost; en ° het verwijderen van de opgeloste polymere coating van het oppervlak.. allowing the aqueous composition to dissolve the polymer coating; and ° removing the dissolved polymer coating from the surface. 7. Een werkwijze volgens conclusie 6, waarin het oppervlak een door mensen gemaakt oppervlak is dat is blootgesteld aan het weer.7. A method according to claim 6, wherein the surface is a man-made surface exposed to the weather. 8. Een werkwijze volgens conclusie 7, waarin het door mensen gemaakt oppervlak is dat 1s blootgesteld aan het weer een buitenoppervlak van een gebouw of een kas is.8. A method according to claim 7, wherein the man-made surface exposed to the weather is an exterior surface of a building or a greenhouse. 9. Een werkwijze volgens één der conclusies 6 — 8, waarin de non- ionische surfactant een non-ionische surfactant omvattende een of meer C4 — C24 lineaire alkyl alcoholen is, en/of waarin de chelator een chelator is bestaande uit alleen C, H en O-atomen omvattende een 1,2,3- substitutiepatroon, waarbij de substitutie is met carboxylzuurgroepen en/of hydroxygroepen.9. A method according to any one of claims 6 to 8, wherein the non-ionic surfactant is a non-ionic surfactant comprising one or more C4 - C24 linear alkyl alcohols, and/or wherein the chelator is a chelator consisting of only C, H and O atoms comprising a 1,2,3-substitution pattern, wherein the substitution is with carboxylic acid groups and/or hydroxy groups. 10. Een werkwijze volgens één der conclusies 6 — 9, waarin het verwijderen van de opgeloste polymere coating van het oppervlak spoelen met water omvat.10. A method according to any one of claims 6 to 9, wherein removing the dissolved polymer coating from the surface comprises rinsing with water. 11. Een werkwijze volgens één der conclusies 6 — 10, waarin het verwijderen het doel heeft om de lichtreflectie en/of de temperatuur op of beneden het oppervlak te moduleren.11. A method according to any one of claims 6 to 10, wherein the removal is for the purpose of modulating the light reflection and/or the temperature at or below the surface. 12. Een werkwijze volgens één der conclusies 6 — 11, waarin de waterige samenstelling een drogestofgehalte heeft van 0.3 — 10 gew.%, bij voorkeur 0.5 — 5.0 gew.%, meer bij voorkeur 0.5 — 4.9 gew.%, meer bij voorkeur 0.6 — 4.0 gew.%, meest bij voorkeur 0.7 — 3.0 gew.%.12. A method according to any one of claims 6 to 11, wherein the aqueous composition has a dry matter content of 0.3 to 10 wt.%, preferably 0.5 to 5.0 wt.%, more preferably 0.5 to 4.9 wt.%, more preferably 0.6 to 4.0 wt.%, most preferably 0.7 to 3.0 wt.%. 13. Gebruik van een samenstelling volgens één der conclusies 1 — 5 voor het moduleren van lichtreflectie en/of de temperatuur op of beneden een oppervlak, bij voorkeur een door mensen gemaakt oppervlak dat is blootgesteld aan het weer.13. Use of a composition according to any one of claims 1 to 5 for modulating light reflection and/or temperature on or below a surface, preferably a man-made surface exposed to the weather. 14. Gebruik volgens conclusie 13, waarbij het moduleren omvat - in het geval van een tenminste gedeeltelijk transparant oppervlak voorzien van een reflectieve alkali-oplosbare polymere coating zoals een alkali- oplosbaar schermmiddel, het verminderen van de lichtreflectie van het oppervlak en/of het verhogen van de temperatuur op of beneden het oppervlak; en/of - in het geval van een vrijwel niet transparant oppervlak voorzien van een reflectieve alkali-oplosbare polymere coating zoals een alkali-oplosbaar schermmiddel, het verhogen van de temperatuur op of beneden het oppervlak; en/of -1n het geval van een vrijwel niet transparant oppervlak voorzien van een adsorberende alkali-oplosbare polymere coating, het verlagen van de temperatuur op of beneden het oppervlak.Use according to claim 13, wherein the modulating comprises - in the case of an at least partially transparent surface provided with a reflective alkali-soluble polymer coating such as an alkali-soluble screening agent, reducing the light reflection from the surface and/or increasing the temperature at or below the surface; and/or - in the case of a substantially non-transparent surface provided with a reflective alkali-soluble polymer coating such as an alkali-soluble screening agent, increasing the temperature at or below the surface; and/or - in the case of a substantially non-transparent surface provided with an adsorbent alkali-soluble polymer coating, decreasing the temperature at or below the surface. 15. Gebruik volgens conclusie 13 of 14, waarin het oppervlak een door mensen gemaakt oppervlak dat is blootgesteld aan het weer, bij voorkeur een buitenoppervlak van een gebouw of kas.15. Use according to claim 13 or 14, wherein the surface is a man-made surface exposed to the weather, preferably an exterior surface of a building or greenhouse.
NL2034826A 2023-05-15 2023-05-15 Cleaning formula NL2034826B1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999022588A1 (en) 1997-11-03 1999-05-14 Raadgevend Chemiebureau Rsb V.O.F. Removable protective coating
EP1918322A1 (en) * 2006-11-03 2008-05-07 Henkel Kommanditgesellschaft auf Aktien Paint Stripper with Corrosion Inhibitor for Aluminium
CN104650644A (en) * 2013-11-21 2015-05-27 天津博莱恩科技发展有限公司 Woodware paint remover
WO2018169404A1 (en) 2017-03-17 2018-09-20 Mardenkro Holding B.V. Removable, biodegradable coating
WO2022177432A1 (en) * 2021-02-18 2022-08-25 Lumiforte Holding B.V. Biodegradable shading paint
CN115537825A (en) * 2022-11-03 2022-12-30 福建省长汀金龙稀土有限公司 Ultrasonic ash remover and preparation method and application thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001311093A (en) * 2000-04-28 2001-11-09 Rinrei:Kk Floor cleaning composition
CN105567459B (en) * 2015-12-10 2018-11-02 深圳市洁力士化工产品有限公司 A kind of green alkaline cleaning solution and preparation method
CN115058717A (en) * 2022-06-30 2022-09-16 南京科润新材料技术有限公司 A kind of phosphorus-free neutral ash removal and degreasing agent for metal coating pretreatment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999022588A1 (en) 1997-11-03 1999-05-14 Raadgevend Chemiebureau Rsb V.O.F. Removable protective coating
EP1918322A1 (en) * 2006-11-03 2008-05-07 Henkel Kommanditgesellschaft auf Aktien Paint Stripper with Corrosion Inhibitor for Aluminium
CN104650644A (en) * 2013-11-21 2015-05-27 天津博莱恩科技发展有限公司 Woodware paint remover
WO2018169404A1 (en) 2017-03-17 2018-09-20 Mardenkro Holding B.V. Removable, biodegradable coating
WO2022177432A1 (en) * 2021-02-18 2022-08-25 Lumiforte Holding B.V. Biodegradable shading paint
CN115537825A (en) * 2022-11-03 2022-12-30 福建省长汀金龙稀土有限公司 Ultrasonic ash remover and preparation method and application thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "CPID - Simple Green Heavy-Duty Cleaner & Degreaser, Pressure Washer Concentrate", 30 June 2017 (2017-06-30), XP093101823, Retrieved from the Internet <URL:https://www.whatsinproducts.com/types/type_detail/1/19115/standard/p>Simple%20Green%20Heavy-Duty%20Cleaner%20&%20Degreaser,%20Pressure%20Washer%20Concentrate-11/24/2015/p>/19-006-087/1> [retrieved on 20231115] *
DATABASE Sunshine Makers [online] 14 January 2016 (2016-01-14), SUNSHINE MAKERS: "Safety data sheet: Simple Green Heavy duty Cleaner & Degreaser", XP093101554, retrieved from https://images.thdstatic.com/catalog/pdfImages/af/af859e81-a0a7-43a7-93a2-e3686c254b43.pdf Database accession no. 1206690 *

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