EP3759175A1 - Revêtements à base de silicate - Google Patents

Revêtements à base de silicate

Info

Publication number
EP3759175A1
EP3759175A1 EP19707325.7A EP19707325A EP3759175A1 EP 3759175 A1 EP3759175 A1 EP 3759175A1 EP 19707325 A EP19707325 A EP 19707325A EP 3759175 A1 EP3759175 A1 EP 3759175A1
Authority
EP
European Patent Office
Prior art keywords
weight
silicate
composition according
content
water
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP19707325.7A
Other languages
German (de)
English (en)
Inventor
Michael Troll
Jack Van Leeuwen
Gerald Burgeth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sto SE and Co KGaA
Original Assignee
Sto SE and Co KGaA
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 Sto SE and Co KGaA filed Critical Sto SE and Co KGaA
Publication of EP3759175A1 publication Critical patent/EP3759175A1/fr
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • C09D1/06—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C01B33/24—Alkaline-earth metal silicates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
    • C09D1/04—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates with organic additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/02—Emulsion paints including aerosols
    • C09D5/024—Emulsion paints including aerosols characterised by the additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/02—Emulsion paints including aerosols
    • C09D5/024—Emulsion paints including aerosols characterised by the additives
    • C09D5/028—Pigments; Filters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C08K2003/0856—Iron
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C08K2003/0881—Titanium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/15—Heterocyclic compounds having oxygen in the ring

Definitions

  • the invention relates to silicate coatings, especially silicate paints and dispersion silicate paints, comprising at least one basic silicate, at least one filler and / or pigment, water for adjusting a pasty consistency, optionally at least one organic binder and optionally conventional additives.
  • Silicate paints are a very important special case of mineral paints. They contain, as is exemplified in detail in Wikipedia, in addition to inorganic colorants as the main component of a potassium-containing alkali metal silicate, also as
  • the binding agent water glass is highly resistant to UV influences. While organic binders such as acrylate or silicone resin dispersions embrittle over the years under the influence of UV radiation and lead to chalking phenomena, cracks and, as a consequence, paint damage, the inorganic binding agent water glass remains stable. The chemical bonding with the substrate and the UV stability of the binder are the main reasons for the extremely long life of
  • Silicate paints For setting, silicate paints require a mineral, siliceous base. Therefore, they are suitable for mineral substrates such as mineral plasters and concrete.
  • Silicate paints are enormously color stable. After they are only tinted with mineral pigments and these do not change in color due to UV light, the silicate coatings also remain constant in color for decades. Basically, three types of silicate paints are historically distinguished, the definitions of which are not intended to limit the invention:
  • the pure silicate paint consists of two components, a dry or colorless powder mixed in water and the liquid binder water glass.
  • the processing requires a lot of experience and know-how. It is especially popular in the historical area.
  • Silicate paints according to the invention can be used in
  • Dispossion silicate paints The range of application of this type of silicate paint is significantly greater than that of the pure silicate paint, because even substrates with lower strengths and / or organic proportions can be coated. In addition, the processing is easier than with the pure silicate paint.
  • Dispersion silicate paints can contain more than 5% by mass of organic matter
  • Additives, in particular binders include. Since 2002, there is a third category of silicate paint, the so-called sol-silicate paint. It contains as a binder a combination of silica sol and water glass. The organic content is limited to 5% by mass, as in the case of the dispersion silicate paint, in order to obtain a chemical setting and the silicate-typical starches.
  • the sol silicate paint also allows for use
  • silicate and dispersion silicate coatings should (also) be suitable for applications on absorbent, mineral and / or basic, cementitious substrates.
  • silicate-bound coatings have clear weaknesses here.
  • critical substrates eg absorbent, mineral and / or basic, cementitious substrates
  • the silicate-bound coating dries too quickly due to the acceleration of the silicification reaction due to the basicity of the substrate.
  • Critical substrates especially basic absorbent substrates, are regularly inhomogeneously critical resp. absorbent. There are places or areas that are more or less critical resp. are sucking. That's why it comes to
  • Silicate coatings are available, which allow the spot - free drying on critical substrates, without any pretreatment of the
  • silicate coatings should be as easy to process as comparable conventional silicate paints or dispersion silicate paints.
  • Disperse silicate paints and other disperse silicate coatings are hydrous, liquid or pasty before their intended use
  • Base silicates in the sense of the invention are silicates which on contact with H 2 O due to the presence on the surface of the silicates of at least one
  • the "basic silicates” include basic alkali and alkaline earth silicates.
  • Basic silicates contain on the surface at least one of the following basic groups or ions:
  • Metasilicate - groups or ions
  • a coating, composition, paint, plaster and the like in the sense of the invention means both the not yet processed product and the product after its processing.
  • silicate paint or “silicate coating” includes the hydrous liquid or pasty coating composition prior to its application, as well as the solid, more or less dry, coating resulting from the application.
  • a silicate coating in the sense of the invention comprises a liquid or pasty composition which can be produced from a dry or colorless powder mixed with water and a basic silicate such as, in particular, water glass as a liquid binder, and the additives according to the invention, in particular for delaying the setting, according to the definition in claim 1.
  • a dispersion silicate coating in the sense of the invention comprises a one-component silicate coating with organic additives (eg.
  • a sol-silicate coating according to the invention is a silicate coating according to the invention or dispersion-silicate coating in the above sense, as defined in claim 1, but contains as binder a combination of silica sol and water glass.
  • the organic fraction is as in the case of the dispersion silicate coating according to the invention.
  • silicate paints disperse silicate paints, similar silicate-containing compositions (eg, sol-silicate paints, others).
  • Coatings as paints and emulsion paints with an addition of basic silicates are collectively referred to as "silicate coatings.”
  • “Coating” and “composition” are basically synonymous.
  • the invention also includes compositions whose silicate content differs from the usual silicate compositions.
  • the invention therefore also encompasses compositions with substantially lower contents of silicates, particularly basic silicates, and substantially higher contents of at least one organic binder compared to conventional (for example the abovementioned) compositions or coatings.
  • the content of organic binder can be well over 5 wt.% And outweigh the silicate content, even far outweigh.
  • Such compositions correspond
  • Dispersion coatings with an addition of basic silicates as an additive are by weight unless otherwise specified.
  • the invention solves the problem of staining or streaking when applying silicate coatings to absorbent and / or strongly alkaline substrates basically by delaying the silicification reaction.
  • Delay is caused by the addition of a water-soluble carbohydrate to the silicate coating not yet applied.
  • the invention therefore relates to silicate coatings, especially silicate paints, comprising at least one basic silicate, at least one filler and / or pigment, at least one water-soluble carbohydrate, water for adjusting a pasty consistency, optionally at least one organic binder and optionally conventional additives.
  • silicate coatings or dispersion silicate coatings on purely polymcrgcbundcncn old coatings also leads to adhesion problems, if the substrate is not appropriate
  • Embodiments of the coating compositions according to the invention can also be applied without problems to such substrates.
  • the basic silicate according to the invention in preferred embodiments of the invention is an alkaline earth silicate, in particular calcium silicate, for example cement, cement clinker, granulated slag and / or hydraulic lime, and / or an alkali metal silicate, for example lithium, sodium or potassium water glass.
  • alkaline earth silicate in particular calcium silicate, for example cement, cement clinker, granulated slag and / or hydraulic lime, and / or an alkali metal silicate, for example lithium, sodium or potassium water glass.
  • Especially preferred embodiments of the invention contain both alkaline earth silicate and alkali silicate.
  • the basic silicate is used in the case of alkaline earth silicates as hydrate-free silicate, i. free or at least substantially free of alkaline earth or calcium silicate hydrate (CSH) phases.
  • CSH calcium silicate hydrate
  • Hydrate-free calcium silicates are components of cement clinker or of cement.
  • cement clinker cement
  • cement cement
  • cement cement
  • cement cement
  • cement the fired component of the cement, which is responsible for the curing with the addition of water, and the carrier the basic silicates is.
  • Cement is made by grinding cement clinker with Ca sulfates.
  • Cement clinker is produced by sintering at high temperatures of limestone, clay (marl) and quartz sand.
  • the clinker mainly consists of the following phases:
  • Tricalcium silicate (alite), short C3S (3 CaO * Si0 2 ) Dicalcium silicate (Belit), in short C2S (2 CaO * Si0 2 )
  • the calcium silicate phases because they cause the strong increase in pH when mixed with water.
  • the aluminate phases as well as the CaO are less of interest because they do not react as strongly basic as the hydrate-free silicates. That Cement and clinker with a particularly high content of basic silicates (more C2S phases than C3S phases) are of great importance, since this basic silicate contributes significantly more to the increase in pH than CaO. It is the stronger base.
  • the proportion of SiO 2 must not be too high and should be less than 50%, better less than 40%, better still less than 30%. Otherwise, the cement condenses too fast and is difficult to delay. Therefore, not only cement and clinker can serve as a source for the calcium silicate phases, but also slag sands, which are usually from about 30-45% CaO, 30 ⁇ 15% SiO 2, 5-15% A1203, 4-17% MgO , 0.5-1% S and traces of other elements.
  • blastfurnace slag Due to the high proportion of SiO2, blastfurnace slag is very well suited, but above all due to the fact that blastfurnace slag is a latent hydraulic binder. Latent means that blastfurnace slag is relatively slow to react and does not set quickly. Since a setting of the hydraulic additive is not desirable, the blastfurnace slag is very well suited. But it is much more expensive than cement / cement clinker.
  • alkali silicates Li, Na, K water glass, silica sols
  • hydrate-free alkali metal silicates solid
  • the basic silicate preferably comprises a hydrate-free Erdalakalisilikat, preferably calcium silicate (tricalcium silicate (Alit, 3 CaO * SiO 2),
  • Dicalcium silicate (Belit, 2 CaO * SiO 2). This is especially preferred
  • Alkaline earth silicate entirely of calcium silicate.
  • the basic silicate also preferably comprises an alkali silicate, especially water glass.
  • the basic silicate comprises both alkaline earth and alkali silicate.
  • the content of basic silicate in preferred embodiments is at most 6% by weight, preferably at least 0.01% by weight, more preferably between 0.01 and 4% by weight, more preferably between 0.01% by weight and 2% by weight, more preferably between 0.01 and 1% by weight, more particularly between 0.05% by weight and 0.5% by weight, based on the total weight of the composition.
  • substance is a water-soluble carbohydrate, which is preferably selected from saccharides, in particular mono-, di- and oligosaccharides, especially from sugars, amino sugars and deoxysugars.
  • saccharides in particular mono-, di- and oligosaccharides, especially from sugars, amino sugars and deoxysugars.
  • Monosaccharides and disaccharides as well as table sugars (sucrose) and / or glucosamine are particularly preferred.
  • hydroxycarboxylic acids such as, in particular, sugar acids and their salts and derivatives can be used.
  • Polysaccharides such as starch and other substances used as thickeners in the prior art are less suitable as retarding agents because of their poor solubility or
  • Preferred embodiments of the invention have a content of at most 1.0% by weight, preferably at least 0.001% by weight, more preferably between 0.005% by weight and 0.5% by weight, even more preferably between 0.005% by weight and 0.1 Wt.% And most preferably between 0.01 wt.% And 0.08 wt.% Of at least one water-soluble carbohydrate, based on the total weight of
  • Preferred embodiments of the invention have a content of at least one organic binder between 1% by weight and 40% by weight, preferably between 2% by weight and 30% by weight, particularly preferably between 2.5% by weight and 25% by weight, each calculated as a solid.
  • compositions according to the invention have a content of at least one filler and / or pigment between 10% by weight and 90% by weight, preferably between 20% by weight and 85% by weight, particularly preferably between 25% by weight and 80% by weight. exhibit.
  • the water content of the compositions is preferably between 5% by weight and 50% by weight.
  • the at least one organic binder is preferably selected from the group consisting of homopolymers, copolymers or terpolymers of acrylic acid and / or methacrylic acid, itaconic acid and acid esters such as ethyl acrylate,
  • butyl acrylate Styrene, substituted or unsubstituted vinyl chloride, vinyl acetate, vinyl propionate, ethylene, butadiene, versatate, acrylamides and acrylonitrile;
  • water-dilutable alkyd polymers combinations of (meth) acrylic / alkyd polymers, polyvinyl alcohol and mixtures thereof, preference being given to homopolymers or copolymers of acrylic acid and / or methacrylic acid.
  • the at least one filler or pigment is preferably selected from the group consisting of pyrogenically precipitated silica, precipitated silica, silicon-aluminum mixed oxides, alkaline earth carbonates such as calcium carbonate, silica, silicates, e.g. Aluminosilicates, sulfates, e.g. Barium sulfates, titanium dioxide, colored pigments, e.g.
  • compositions of the invention have a content of at least one additive such as a rheology additive, a defoamer, a hydrophobing agent, a wax or wax preparation, a stabilizer, fibers, a film-forming aid, and a dispersing and wetting agent.
  • a rheology additive such as a rheology additive, a defoamer, a hydrophobing agent, a wax or wax preparation, a stabilizer, fibers, a film-forming aid, and a dispersing and wetting agent.
  • the compositions according to the invention can be used to advantage to realize a plaster, a paint, in particular an emulsion paint, a decorative finish coating or the like.
  • Embodiment 1 Emulsion paint:
  • Aqueous polymer dispersion (about 50% solids content) 30 parts by weight of fillers and pigments 37 parts by weight of basic silicates 0.5 part by weight of sugar 0.05 part by weight
  • Additives in particular rheology additives, fly-dabbing agents, defoamers,
  • the pH of this dye batch was 11.6; even after 16 weeks at 11.7.
  • Embodiment 2 Dispersion Silicate Paint:
  • Aqueous polymer dispersion (about 50% solids content) 9 parts by weight
  • Film-forming aids, fibers, dispersants, etc. 3.5 parts by weight
  • Aqueous polymer dispersion (about 50% solids content) 8 parts by weight of fillers and pigments 54 parts by weight of basic silicates 1, 5 parts by weight of sugar 0.05 part by weight
  • Additives in particular rheology additives, water repellents, defoamers,
  • Film-forming aids, fibers, dispersants, etc. 4 parts by weight
  • the rheological properties (viscosity) remained virtually unchanged during this period. It could be detected sensory no microbial infestation.
  • the emulsion paint proved to be storage stable.
  • Indicator paper determined. The pH was about 11 in all cases.
  • compositions according to the invention combine the advantages of silicate coatings or dispersion silicate coatings with those of pure dispersion coatings, without having the disadvantages of the respective other genus.
  • the coating compositions according to the invention are resistant to soiling and fouling and also solidify the substrate by the slow silicification.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Paints Or Removers (AREA)

Abstract

L'invention concerne un revêtement à base de silicate contenant au moins un silicate basique, au moins une matière de charge et/ou un pigment, au moins un hydrate de carbone soluble dans l'eau, de l'eau pour l'obtention d'une consistance fluide ou pâteuse, éventuellement au moins un liant organique et des éventuels additifs usuels.
EP19707325.7A 2018-03-14 2019-02-19 Revêtements à base de silicate Pending EP3759175A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862642853P 2018-03-14 2018-03-14
PCT/EP2019/054058 WO2019174871A1 (fr) 2018-03-14 2019-02-19 Revêtements à base de silicate

Publications (1)

Publication Number Publication Date
EP3759175A1 true EP3759175A1 (fr) 2021-01-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19707325.7A Pending EP3759175A1 (fr) 2018-03-14 2019-02-19 Revêtements à base de silicate

Country Status (3)

Country Link
US (1) US20190284398A1 (fr)
EP (1) EP3759175A1 (fr)
WO (1) WO2019174871A1 (fr)

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CN112194917A (zh) * 2020-09-16 2021-01-08 漆仙姑新材料技术重庆有限公司 建筑用一种无机耐火涂料及制备方法
CN112375407A (zh) * 2020-10-15 2021-02-19 华帝股份有限公司 一种表面处理剂及其制备方法和应用
CN112759955B (zh) * 2020-12-29 2022-02-11 广西经正涂料有限公司 一种水性内墙无机底漆及其制备方法
CN113831766B (zh) * 2021-09-18 2022-05-03 吉林莱德化学科技有限公司 水性锌铝涂料、底涂层及其制备方法和复合涂层
CN113969077B (zh) * 2021-11-17 2022-05-03 武汉傲林环保科技股份有限公司 一种铝钛粉防锈颜料及其制备方法

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