WO2018098474A1 - Composition pour le traitement de substrats poreux - Google Patents

Composition pour le traitement de substrats poreux Download PDF

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Publication number
WO2018098474A1
WO2018098474A1 PCT/US2017/063445 US2017063445W WO2018098474A1 WO 2018098474 A1 WO2018098474 A1 WO 2018098474A1 US 2017063445 W US2017063445 W US 2017063445W WO 2018098474 A1 WO2018098474 A1 WO 2018098474A1
Authority
WO
WIPO (PCT)
Prior art keywords
composition
sodium acetate
sodium
treatment composition
porous substrate
Prior art date
Application number
PCT/US2017/063445
Other languages
English (en)
Inventor
Anders Eriksson
Original Assignee
2G Protectants, Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 2G Protectants, Llc filed Critical 2G Protectants, Llc
Publication of WO2018098474A1 publication Critical patent/WO2018098474A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
    • C04B28/26—Silicates of the alkali metals
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
    • C04B41/61—Coating or impregnation
    • C04B41/62—Coating or impregnation with organic materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials

Definitions

  • This relates to the field of treating porous substrates and, more particularly, to chemical compositions for treating porous substrates.
  • Porous substrates are difficult to treat because contaminants can settle into the pores and conventional cleaning solutions cannot remove them. Concrete, for example, is often very porous and located in high-traffic areas prone to becoming soiled. Keeping concrete clean often requires a great deal of work. To clean porous substrates such as concrete, people often resort to pressure washing, which is effective, but can create more pores and can damage the substrate.
  • a treatment composition that will clean porous substrates on its own over time after being applied and will protect the porous substrate from water- related damage.
  • This objective may be achieved by using a treatment composition that includes sodium acetate, which forms hygroscopic crystals that change size as they absorb and desorb water. The crystals partially seal the pores to reduce water permeability and effectively scrub the pores as the substrate experiences wet and dry cycles. By sealing the pores, the crystals may prevent water damage to the substrate.
  • a first example of the composition includes aqueous solution including sodium acetate, a surfactant, an oxidizing agent, a base, a water repellent substance, a silicate compound, and an alkalinity modifier.
  • the aqueous solution may include 0.2% to 10% w/w sodium acetate; 0.1% to 5% w/w surfactant; 0.0001% to 0.003% oxidizing agent; 0.0005% to 0.005% base; 1% to 10% water repellent substance; 2% to 15% silicate compound ; and 0.1% 5% alkalinity modifier.
  • the aqueous solution may include 1% to 4% w/w sodium acetate.
  • the water repellent substance may include potassium methylsilanetriolate.
  • the base may include sodium hydroxide.
  • the oxidizing agent may include sodium hypochlorite.
  • the silicate compound may include sodium metasilicate.
  • the aqueous solution may include 0.2% to 10% w/w sodium acetate; 0.1% to 5% w/w surfactant; 0.0001% to 0.003% sodium hypochlorite; 0.0005% to 0.005% sodium hydroxide; 1% to 10% of potassium methylsilanetriolate; 2% to 15% sodium metasilicate; and 0.1% 5% anhydrous sodium carbonate.
  • a first example method of treating a porous substrate includes applying to a porous substrate an aqueous treatment composition including sodium acetate; a surfactant; an oxidizing agent; a base; a water repellent substance; a silicate compound ; and an alkalinity modifier.
  • the composition is allowed to penetrate the pores of the porous substrate and the sodium acetate crystallizes in the pores.
  • the aqueous treatment composition may include 0.2% to 10% w/w sodium acetate; 0.1% to 5% w/w surfactant; 0.0001% to 0.003% oxidizing agent; 0.0005% to 0.005% base; 1% to 10% water repellent substance; 2% to 15% silicate compound ; and 0.1% 5% alkalinity modifier.
  • the aqueous treatment composition may include 1% to 4% w/w sodium acetate.
  • the water repellent substance may include potassium methylsilanetriolate; the base may include sodium hydroxide; the oxidizing agent may include sod ium hypochlorite; and the silicate compound may include sodium metasilicate.
  • the aqueous treatment composition may include 0.2% to 10% w/w sodium acetate; 0.1% to 5% w/w surfactant; 0.0001% to 0.003% sodium hypochlorite; 0.0005% to 0.005% sodium hydroxide; 1% to 10% of potassium methylsilanetriolate; 2% to 15% sodium metasilicate; and 0.1% 5% anhydrous sodium carbonate.
  • the step of applying to the porous substrate the aqueous treatment composition may include applying the aqueous treatment composition at a rate of 50 ft 2 /gallon to 500 ft 2 /gallon.
  • the porous substrate may include concrete.
  • a second example of the composition includes 0.2% to 10% w/w sodium acetate and 0.1% to 5% surfactant.
  • aqueous solution may include 1% to 4% w/w sodium acetate.
  • the aqueous solution may include 1% to 10% potassium methylsilanetriolate.
  • the aqueous solution may include 1% to 4% w/w sodium acetate and 1% to 10% potassium methylsilanetriolate.
  • a second example method of treating a porous substrate includes applying to a porous substrate an aqueous treatment composition including 0.2% to 10% w/w sodium acetate and 0.1% to 5% surfactant.
  • the treatment composition is allowed to penetrate the pores of the porous substrate.
  • the sodium acetate crystallizes in the pores.
  • the aqueous treatment composition may include 1% to 4% w/w sodium acetate.
  • the aqueous treatment composition further includes 1% to 10% potassium methylsilanetriolate.
  • the aqueous treatment composition includes 1% to 4% w/w sodium acetate and 1% to 10% potassium methylsilanetriolate.
  • the step of applying to the porous substrate the aqueous treatment composition may include applying the aqueous treatment composition at a rate of 50 ft 2 /gallon to 500 ft 2 /gallon.
  • the porous substrate may include concrete.
  • the treatment composition including sodium acetate may be used to clean and protect porous substrates.
  • porous substrates include, but are not limited to, concrete such as concrete pavement, concrete block, concreate pavers, concrete bricks, wood, roofing materials such as shingles, and the like.
  • the sodium acetate composition may be applied by spraying, brushing, pouring, or the like an aqueous solution of sodium acetate over the porous substrate to be treated.
  • the aqueous solution may include additional ingredients. Examples of sodium acetate cleaning compositions will now be described, but the scope of possible examples is not limited to those described here.
  • the application rate to the porous surface being treated may vary depending on type of surface, weather conditions, quality of the porous surface, how soiled the porous surface is, and other variables.
  • a typical example application rate is about 50 to about 500 ft 2 /gallon, about 10 to about 400 ft 2 /gallon, about 125 to about 250 ft 2 /gallon, or about 150 to about 200 ft 2 /gallon.
  • the composition may include at least one surfactant, which functions to loosen contaminants from the porous substrate so they may be rinsed away.
  • surfactants include, but are not limited to alkylbenzene sulfonic acid, nonylphenol polyetheylene glycol ethers, sodium octylaminiopropionate, ethoxylated alcohols, and the like.
  • KW 6030TM (The Cary Company, Addison, IL) is a commercially available surfactant blend that may be used.
  • KW 6030TM is a blend of surfactants including ethoxylated alcohols, dimethyl-2-methyl glutarate, nonylphenol polyethylene glycol ether, sodium octylaminopropionate, acid methyl ester, and water.
  • the composition may include at least one surface tension reducing substance that lowers the surface tension of the composition so that the solution penetrates into the pores.
  • surface tension reducing substances include, but are not limited to isopropyl alcohol, sodium xylene sulfonate, nonylphenol polyetheylene glycol ether blend, and the like.
  • the composition may include at least one surface tension increasing compound This may be useful to prevent the composition from running or dripping off vertical surfaces.
  • the surface tension increasing compound helps the composition adhere to the vertical surface.
  • Examples of a surface tension increasing compound include, but are not limited to acrylic based polymers such as sodium polyacrylate.
  • the composition may include at least one water repellent substance.
  • water repellent substances include, but are not limited to, potassium methylsilanetriolate and many varieties of silane and siloxane water repellents.
  • the composition may include at least one base.
  • bases include, but are not limited to sodium hydroxide (NaOH), potassium hydroxide (KOH), soda ash (Na2C0 3 ), lime (CaO) triethanolamine, monoethanolamine, monoisopropylamine, and 2-amino-2-methyl-l- propanol/2-methylamino-2-methyl-l-propanol blend.
  • the composition may include at least one oxidizing agent.
  • oxidizing agents include, but are not limited to sodium hypochlorite (NaCIO), percarbonate compounds such as sodium and calcium percarbonate, perborate compounds such as sodium and calcium perborate, and peroxide compounds.
  • the composition may include at least one silicate compound.
  • silicate compounds include, but are not limited to sodium silicate, sodium metasilicate.
  • the at least one silicate compound may function as a waterproofing agent.
  • the composition may contain an alkalinity modifier.
  • alkalinity modifiers include, but are not limited to anhydrous sodium carbonate and the like.
  • the composition may include colloidal silicon dioxide in which the silicon dioxide particles are nanometer sized.
  • colloidal silicon dioxide may be effective for killing organic contaminants such as mold, moss, and/or algae.
  • Table 1 provides % w/w ranges of ingredients in various possible examples of the composition.
  • the %w/w in Table 1 refers to the weight percentage of the specified ingredient relative to the total weight of the composition.
  • the composition may include any combination of the ingredients in the amounts provided in Table 1.
  • Table 2 provides % v/v ranges of ingredients in more particular examples of the composition.
  • composition may include any combination of the ingredients in the amounts provided in Table 2.
  • Table 3 provides % v/v ranges of ingredients in more particular examples of the composition
  • composition may include any combination of the ingredients in the amounts provided in Table 3.
  • %v/v in Tables 2 and 3 refer to the volume percentage of the specified ingredient relative to the total volume of the composition prior to mixing ingredients together.
  • Table 4 provides % w/w ranges of ingredients in more particular examples of the cleaning composition.
  • the reaction of surfactants/alcohol/blend is a blend of ethoxylated alcohols, ethoxyl- propoxylterpene, polyethylene glycol, dimethyl-2-methyl glutarate, sodium octylaminopropionate, and water.
  • the composition may be prepared by combining and mixing the specified ingredients together.
  • An example process for preparing the composition is now described.
  • An aqueous sodium acetate solution is prepared by mixing to yield a concentration of 20% sodium acetate.
  • the sodium acetate solution may be added to a mixing vessel and internal mixing paddles are set to operate at slow speed.
  • the remaining ingredients may be added one at a time, allowing for about 15 minutes of mixing time between each addition.
  • the liquid ingredients may then be added manually or through a pump system.
  • the individual liquid components may be blended together inside the pump, facilitating micro-blending of the raw ingredients. Once all of the ingredients have been added to the mixing vessel, the resulting mixture is allowed to blend for about one hour under moderate pump speeds and moderate mixing paddle speeds to minimize foam formation.
  • deionized water may be added to the mixing vessel at a rate of about half the total volume to be utilized.
  • the surfactant blend may be prepared and mixed with KW 6030TM in a separate mixing vessel, then added to the water in the mixing vessel via a pump or manually.
  • the remaining ingredients may be added one at a time-allowing for about 15 minutes of mixing time between each addition.
  • the addition of liquid ingredients may be accomplished through the pump system so that the individual liquid components are forced together inside the pump, facilitating micro-blending of the raw materials.
  • the mixture may be allowed to blend for about one hour under moderate pump speeds and moderate mixing paddle speeds to minimize foam formation.
  • composition and methods describe exemplary embodiments, but not all possible embodiments of the composition and methods. Where a particular feature is disclosed in the context of a particular embodiment, that feature can also be used, to the extent possible, in combination with and/or in the context of other embodiments.
  • the composition and methods may be embodied in many different forms and should not be construed as limited to only the embodiments described here.
  • compositions and methods are not limited to the details described in connection with these example embodiments. There are numerous variations and modification of the apparatus and methods that may be made without departing from the scope of what is claimed .

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

La présente invention concerne des compositions et des méthodes pour le traitement de substrats poreux. Un exemple d'une telle composition comprend de l'acétate de sodium, qui forme des cristaux hygroscopiques qui changent de taille à mesure qu'ils absorbent et désorbent l'eau. Les cristaux scellent partiellement les pores pour réduire la perméabilité à l'eau et nettoient efficacement les pores lorsque le substrat subit des cycles humides et secs.
PCT/US2017/063445 2016-11-28 2017-11-28 Composition pour le traitement de substrats poreux WO2018098474A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201662426690P 2016-11-28 2016-11-28
US62/426,690 2016-11-28

Publications (1)

Publication Number Publication Date
WO2018098474A1 true WO2018098474A1 (fr) 2018-05-31

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996002624A1 (fr) * 1994-07-13 1996-02-01 So-Safe Specialty Products Pty. Ltd. Kit, composition et procedes de nettoyage
US7521409B2 (en) * 2004-11-05 2009-04-21 Tuggle Terrance F Mold removal and cleaning solution
US20090148342A1 (en) * 2007-10-29 2009-06-11 Bromberg Steven E Hypochlorite Technology
WO2012145659A1 (fr) * 2011-04-20 2012-10-26 Dow Corning Corporation Compositions aqueuses stables d'alkyl siliconates de métal alcalin avec alkylsilanes fluorés et aminosilanes, et procédés de traitement de surface à l'aide des compositions
US20140228496A1 (en) * 2011-09-19 2014-08-14 Dow Corning Corporation Process Of Preparing A Siloxane Copolymer
US20150084224A1 (en) * 2007-10-18 2015-03-26 Ecolab Usa Inc. Pressed, self-solidifying, solid cleaning compositions and methods of making them

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996002624A1 (fr) * 1994-07-13 1996-02-01 So-Safe Specialty Products Pty. Ltd. Kit, composition et procedes de nettoyage
US7521409B2 (en) * 2004-11-05 2009-04-21 Tuggle Terrance F Mold removal and cleaning solution
US20150084224A1 (en) * 2007-10-18 2015-03-26 Ecolab Usa Inc. Pressed, self-solidifying, solid cleaning compositions and methods of making them
US20090148342A1 (en) * 2007-10-29 2009-06-11 Bromberg Steven E Hypochlorite Technology
WO2012145659A1 (fr) * 2011-04-20 2012-10-26 Dow Corning Corporation Compositions aqueuses stables d'alkyl siliconates de métal alcalin avec alkylsilanes fluorés et aminosilanes, et procédés de traitement de surface à l'aide des compositions
US20140228496A1 (en) * 2011-09-19 2014-08-14 Dow Corning Corporation Process Of Preparing A Siloxane Copolymer

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