EP3097127A1 - Bindemittelzusammensetzung - Google Patents
BindemittelzusammensetzungInfo
- Publication number
- EP3097127A1 EP3097127A1 EP15701688.2A EP15701688A EP3097127A1 EP 3097127 A1 EP3097127 A1 EP 3097127A1 EP 15701688 A EP15701688 A EP 15701688A EP 3097127 A1 EP3097127 A1 EP 3097127A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- acrylate
- weight
- methacrylate
- monomers
- binder composition
- 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.)
- Withdrawn
Links
Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/007—After-treatment
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- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2688—Copolymers containing at least three different monomers
-
- 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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—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 a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1802—C2-(meth)acrylate, e.g. ethyl (meth)acrylate
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- 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
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/08—Homopolymers or copolymers of acrylic acid esters
-
- 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/08—Homopolymers or copolymers of acrylic acid esters
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- 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
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- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
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- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
- C04B2111/0062—Gypsum-paper board like materials
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- 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
-
- 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
- C04B2111/60—Flooring materials
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- 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
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/54—Aqueous solutions or dispersions
Definitions
- the present invention relates to a binder composition
- a binder composition comprising as essential components a) at least one dispersion polymer P having a glass transition temperature ⁇ 20 ° C which contains ethyl acrylate in copolymerized form, and b) at least one mineral binder M, the amount of which is such that that it is ⁇ 1 and -S is 10,000 parts by weight per 100 parts by weight of dispersion polymer P.
- the present invention furthermore relates to a process for coating a substrate with the abovementioned binder composition and to the coated substrate itself.
- mineral binders M are understood as meaning pulverulent inorganic binders which, after being brought into contact with water, solidify in a stone-like manner over time when left to themselves in the air under atmospheric conditions or partly also under water.
- Such mineral binders M as calcined lime, gypsum, blastfurnace slag, fly ash, silica fume, metakaolin, natural pozzolans or burnt oil shale and in particular cements (see for example EN 197-1) such as Portland cements, white cements, thurament, celite, alumina cements, swelling cements, Blastfurnace cements and cements, for example blast furnace slag, fly ash, silica fume, metakaolin, natural pozzolans or burnt oil shale, are familiar to the person skilled in the art.
- the mineral binder M which as a rule are still used as aggregates serving sands, gravels, broken rocks and other conventional fillers or additives, by contacting and mixing with water in their ready-to-use form, for example, so-called mortars or concretes (hereinafter "hydraulic Binder formulations "), which are then processed in the usual way.
- hydraulic binder formulations finely divided polymers (number average particle diameter> 10 and -S 1000 nm) in the form of aqueous polymer dispersions or the polymer polymer powder accessible thereto (dispersion polymers) mixed (see for example DE-AS 1669903, DE-A 2837898, DE-A 4206429, DE-A 4217035, DE-A 4317036, DE-A 4320220, US-A 3043790, US-A
- VOCs volatile organic compounds
- the object has been achieved by the initially defined binder composition.
- An essential constituent of the binder composition is a dispersion polymer P having a glass transition temperature ⁇ 20 ° C., which contains ethyl acrylate in a polymerized form.
- dispersion polymers P are to be understood as meaning finely divided polymers having a number-average particle diameter> 10 and -S 1000 nm in the form of aqueous polymer dispersions or the polymer powder obtainable from the aqueous polymer dispersions.
- the dispersion polymer used for the binder composition according to the invention contains P> 35 and ⁇ 65% by weight of ethyl acrylate (monomer A),
- ethyl acrylate is used as monomer A.
- the dispersion polymer P of the invention advantageously contains> 35 and -S 65 wt .-%, inbsbesondere advantageously> 40 and -S 55 wt .-% and with particular advantage ⁇ 40 and -S 50 wt .-% of ethyl acrylate in copolymerized form.
- Suitable monomers B are all monoethylenically unsaturated compounds having at least one silicon-containing group, an epoxy, N-methylol or carbonyl group.
- Suitable monomers B are all monoethylenically unsaturated compounds which have at least one silicon-containing group.
- the silicon group-containing monomers B have a hydrolyzable silicon-containing group.
- hydrolyzable silicon-containing groups contain at least one alkoxy group or one halogen atom, such as, for example, chlorine.
- monomers B are disclosed in WO 2008/150647, page 9, lines 5 to 25. By their express reference, these silicon group-containing monomers B are to be considered as part of the present specification.
- the silicon group-containing monomer B is selected from the group consisting of vinyltriacetoxysilane, 3-methacryloxypropyltrimethylsilane and vinyltriethoxysilane.
- suitable monomers B are all monoethylenically unsaturated compounds which have at least one epoxy group, for example glycidyl acrylate and / or glycidyl methacrylate, with glycidyl methacrylate being particularly preferred.
- Suitable monomers B are also all monoethylenically unsaturated compounds which have at least one N-methylol group, such as N-methylolamide compounds based on ⁇ , ⁇ -monoethylenically unsaturated C3 to C6 mono- or dicarboxylic acid amides, in particular N-methylolacrylamide and / or N-methylolmethacrylamide.
- Suitable monomers B are also all monoethylenically unsaturated compounds which have at least one carbonyl group, such as, for example, vinylcarbonyl compounds, for example phenylvinyl ketone or dicarbonyl compounds, in particular diacetone acrylamide and also acetylacetoxyethyl acrylate and acetoacetoxyethyl methacrylate.
- monomers B vinyltriacetoxysilane, 3-methacryloxypropyltrimethylsilane, vinyltriethoxysilane, glycidyl acrylate, glycidylmethac rylate, N-methylolacrylamide, N-methylolmethacrylamide, phenylvinylketone, diacetonac- rylamid, acetylacetoxyethyl acrylate and / or acetylacetoxyethyl methacrylate used, with glycidyl methacrylate is particularly preferred.
- the dispersion polymer P of the invention advantageously contains> 0 and -S 5% by weight, particularly advantageously> 0.5 and -S 4 wt .-% and with particular advantage ⁇ 1 and -S 3 wt .-% of monomers B in copolymerized Shape.
- Suitable monomers C are all monoethylenically unsaturated compounds having at least one hydroxyalkyl group.
- Suitable monomers C are advantageously hydroxy-C 2 -C 10 -alkyl-, preferably hydroxy-C 2 -C 4 -alkyl- and particularly advantageously hydroxy-C 2 -C 3 -alkyl acrylates and / or methacrylates, in which context the alkoxylated compounds are also used That is to say that the hydroxyalkyl acrylates and / or methacrylates reacted with alkylene oxides (essentially ethylene oxide and propylene oxide) are to be regarded as monomers C.
- the hydroxyalkyl group-containing monomer C is selected from the group consisting of diethylene glycol monoacrylate, 4-hydroxybutyl acrylate, 3-hydroxypropyl acrylate, 2-hydroxypropyl acrylate, 2-hydroxyethyl acrylate, diethylene glycol monomethacrylate, 4-hydroxybutyl methacrylate, 3-hydroxypropyl methacrylate, 2-hydroxypropyl methacrylate and 2-hydroxyethyl methacrylate.
- Particularly preferred are 2-hydroxyethyl acrylate and / or 2-hydroxyethyl methacrylate, with 2-hydroxyethyl methacrylate being particularly preferred.
- the dispersion polymer P according to the invention advantageously contains> 0 and -S 7% by weight, in particular preferably> 1 and -S 6% by weight and with particular advantage ⁇ 2 and -S 5% by weight of monomers C in copolymerized form.
- monomers D all monoethylenically unsaturated C3 to C6 monocarboxylic and / or are C 4 -C 6 dicarboxylic acids.
- Suitable monomers D are advantageously acrylic acid, methacrylic acid, ethylacrylic acid, itaconic acid, allylacetic acid, crotonic acid, vinylacetic acid, fumaric acid, maleic acid or 2-methylmaleic acid.
- the monomers D also include the anhydrides of corresponding ⁇ , ⁇ -monoethylenically unsaturated dicarboxylic acids, such as, for example, maleic anhydride or 2-methylmaleic anhydride.
- the monomers D are preferably selected from the group comprising acrylic acid, methacrylic acid, crotonic acid, fumaric acid, maleic acid, maleic anhydride, 2-methylmaleic acid and itaconic acid, with acrylic acid and / or methacrylic acid being particularly preferred.
- the monomers D also comprise the fully or partially neutralized water-soluble salts, in particular the alkali metal salts, of the abovementioned acids.
- the dispersion polymer P of the invention advantageously contains> 0 and -S 5% by weight, particularly advantageously> 0.1 and -S 3 wt .-% and with particular advantage ⁇ 0.1 and -S 2 wt .-% of monomers D. in copolymerized form.
- Suitable monomers E are all compounds which have at least two nonconjugated ethylenically unsaturated groups, in particular vinyl, vinylidene or alkenyl groups.
- Particularly advantageous monomers E are the diesters of dihydric alcohols with ⁇ , ⁇ -monoethylenically unsaturated monocarboxylic acids, of which acrylic and methacrylic acid are preferred.
- monomers having two non-conjugated ethylenically unsaturated double bonds are alkylene glycol diacrylates and dimethacrylates, such as ethylene glycol diacrylate, 1,2-propylene glycol diacrylate, 1,3-propylene glycol diacrylate, 1,3-butylene glycol diacrylate, 1,4-butylene glycol diacrylate and ethylene glycol dimethacrylate, 1, 2-propylene glycol dimethacrylate, 1,3-propylene glycol dimethacrylate, 1,3-butylene glycol dimethacrylate, 1,4-butylene glycol dimethacrylate, tri-esters of trihydric alcohols with ⁇ , ⁇ -monoethylenically unsaturated monocarboxylic acids, for example
- 1,4-butylene glycol diacrylate allyl methacrylate and / or divinylbenzene
- divinylbenzene being understood in the context of this document to include 1,2-divinylbenzene, 1,3-divinylbenzene and / or 1,4-divinylbenzene.
- the dispersion polymer P of the invention advantageously contains> 0 and -S 5% by weight, particularly advantageously> 0 and -S 3 wt .-% and with particular advantage ⁇ 0 and -S 2 wt .-% of monomers E in copolymerized form.
- the dispersion polymer contains P ⁇ 1 wt .-% or no monomers E in copolymerized form.
- Suitable monomers F are all ethylenically unsaturated compounds which differ from the monomers A to E but can be copolymerized therewith and where a homopolymer which is composed solely of the particular monomer F in copolymerized form has a glass transition temperature in the range ⁇ 30 ° C. would have.
- Examples of monomers F are conjugated aliphatic C 4 to Csi diene compounds, esters of vinyl alcohol and a C 1 to C 1 monocarboxylic acid, C 1 to C 10 alkyl acrylate, C 5 to C 10 alkyl methacrylate, C 5 to C 10 cycloalkyl acrylate and methacrylate , Ci- to C10-dialkylmaleinate and / or Ci- to Cio-dialkylfumarate, vinyl ethers of C3- to C10-
- Advantageous are those monomers F whose homopolymers have a glass transition temperature Tg ⁇ 0 ° C and particularly advantageously ⁇ -10 ° C.
- C 1 to C 10 -alkyl groups are understood to mean linear or branched alkyl radicals having 1 to 10 carbon atoms, for example methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert.
- C5- to C10-cycloalkyl groups are preferably to be understood as meaning cyclopentyl or cyclohexyl groups which may optionally be substituted by 1, 2 or 3 C 1 to C 4 -alkyl groups.
- Particularly suitable as monomers F are vinyl acetate, methyl acrylate, n-propyl acrylate, isopropyl acrylate, n-butyl acrylate, sec-butyl acrylate, isobutyl acrylate, n-hexyl acrylate, n-octyl methacrylate, 2-ethylhexyl acrylate, n-hexyl methacrylate, 2-ethylhexyl methacrylate, 2-propylheptyl acrylate, iso-decyl acrylate, n-dodecyl acrylate, n-dodecyl methacrylate,
- Benzyl acrylate, ethyl diglycol acrylate, di-n-butyl maleate and / or di-n-butyl fumarate wherein methyl acrylate, iso-propyl acrylate, n-butyl acrylate, sec-butyl acrylate, iso-butyl acrylate, n-hexyl acrylate, n-hexyl methacrylate, n-octyl methacrylate , 2-ethylhexyl acrylate, 2-ethylhexyl methacrylate, 2-propylheptyl acrylate, iso-decyl acrylate, n-dodecyl acrylate, n-dodecyl methacrylate, benzyl acrylate and ethyl diglycol acrylate are particularly preferred, but 2-ethylhexyl acrylate is particularly advantageous.
- the dispersion polymer P of the invention advantageously contains> 15 and -S 45 wt .-%, particularly advantageously> 20 and -S 35 wt .-% and with particular advantage ⁇ 25 and -S 30 wt .-% of monomers F in copolymerized form.
- Suitable monomers G are all ethylenically unsaturated compounds which differ from the monomers A to E but can be copolymerized with these and where a homopolymer which is composed solely of the respective monomer G in copolymerized form has a glass transition temperature in the range> 50.degree would have.
- Advantageous are those monomers G whose homopolymers have a glass transition temperature Tg> 80 ° C and particularly advantageously> 100 ° C.
- Examples of monomers G are vinyl aromatic monomers, C 2 to C 4 alkyl methacrylates and ethylenically unsaturated nitrile compounds.
- vinylaromatic monomers rule is understood in particular, derivatives of styrene, a- methylstyrene, in which the phenyl is optionally substituted by 1, 2 or 3 C 1 to C 4 - alkyl groups are substituted, halogen, in particular bromine or chlorine and / or methoxy groups.
- the ethylenically unsaturated nitrile is substantially to the nitriles, which are ⁇ -monoethylenically unsaturated ⁇ from the foregoing, especially C3 to C6, preferably C3 or C 4 derived mono- or dicarboxylic acids, such as acrylonitrile, Methacrylonitrile, maleic acid dinitrile and / or fumaronitrile, with acrylonitrile and / or methacrylonitrile being particularly preferred.
- Particularly preferred such monomers are styrene, 2-methylstyrene, 3-methylstyrene, 4-methylstyrene, 2,4-dimethylstyrene, 2,5-dimethystyrene and 3,5-dimethylstyrene, p-acetoxystyrene, p-bromostyrene, p-tert.
- the dispersion polymer P of the invention advantageously contains> 10 and -S 30 wt .-%, particularly advantageously> 15 and -S 30 wt .-% and with particular advantage ⁇ 15 and -S 25 wt .-% of monomers F in copolymerized form.
- the dispersion polymer contains P in a polymerized form
- vinyltriacetoxysilane 3-methacryloxypropyltrimethylsilane, vinyltriethoxysilane, glycidyl acrylate, glycidyl methacrylate, N-methylolacrylamide, N-methylolmethacrylamide, phenylvinyl ketone, diacetone acrylamide, acetylacetoxyethyl acrylate and / or acetylacetoxyethyl methacrylate,
- the dispersion polymer contains P in copolymerized form > 40 and ⁇ 50% by weight of ethyl acrylate,
- the dispersion polymer P has a glass transition temperature Tg in the range of ⁇ 20 ° C. and advantageously ⁇ 5 ° C.
- the dispersion polymers P are used in a binder composition together with a mineral binder M. If, therefore, the dispersion polymer P is to be used in flexible mineral sealing slurries, the dispersion polymers P are advantageously chosen such that their glass transition temperature Tg is in the range of> -40 and -5 ° C., advantageously in the range> -20 and -5 ° C and in particular advantageously in the range> -15 and -S 0 ° C.
- the dispersion polymers P are advantageously chosen such that their glass transition temperature Tg is in the range from -10 to -20 ° C., advantageously in the range> 0 to -20 ° C. particularly advantageously in the range> 5 and ⁇ 15 ° C.
- the dispersion polymers P are advantageously chosen so that their glass transition temperature Tg is in the range of> -10 and ⁇ 20 ° C., advantageously in the range> -5 and ⁇ 10 ° C. and in particular is advantageously in the range> -5 and -S 5 ° C.
- the mass fractions of the monomers 1, 2,..., and Tg1, Tg2,..., Tgn denote the glass transition temperatures of the polymers in degrees Kelvin, each composed of only one of the monomers 1, 2,.
- the glass transition temperatures These homopolymers of most ethylenically unsaturated monomers are known (or can be determined experimentally in a simple manner known per se) and, for example, in J. Brandrup, EH Immergut, Polymer Handbook I st Ed. J. Wiley, New York, 1966, 2nd ed. J. Wiley, New York, 1975 and 3rd Ed. J. Wiley, New York, 1989, and in Ullmann 's Cncyclopedia of Industrial Chemistry, page 169, Verlag Chemie, Weinheim, 1992.
- glass transition temperatures Tg refer to the glass transition temperatures, which are determined by the DSC method (Differential Scanning Calorimetry, 20 K / min, midpoint measurement, DIN 53765) using a DSC 822 instrument (TA 8000) of the company Mettler-Toledo were determined.
- the preparation of the dispersion polymers P is in principle familiar to the person skilled in the art and is carried out, for example, by radical polymerization of the monomers A to G by the method of substance, emulsion, solution, precipitation or suspension polymerization, but the free-radically initiated aqueous emulsion polymerization is particularly preferred.
- the free-radically initiated aqueous emulsion polymerization is usually carried out by dispersing the ethylenically unsaturated monomers, generally with the concomitant use of dispersing aids, such as emulsifiers and / or protective colloids, in aqueous medium and polymerizing them by means of at least one water-soluble free-radical polymerization initiator.
- dispersing aids such as emulsifiers and / or protective colloids
- the residual contents of unreacted ethylenically unsaturated monomers are likewise known to the person skilled in the art by chemical and / or physical methods [see, for example, EP-A 771328, DE-A 19624299, DE-A 19621027, DE-A. A 19741 184, DE-A 19741 187, DE-A 19805122, DE-A 19828183, DE-A 19839199, DE-A 19840586 and 198471 15], the polymer solids content is adjusted by dilution or concentration to a desired value or the aqueous polymer dispersion other common additives, such as bak- added to tericidal, foaming or viscosity modifying additives.
- the preparation of an aqueous dispersion of the dispersion polymer P differs only by the specific use of the aforementioned monomers A to G. It is understood that for the preparation of the dispersionspolymerisats P in the context of the present specification, the well-known to those skilled seed -, step and gradient modes should be included.
- the amounts of monomers A to G used to prepare the dispersion polymers P are to correspond to the amounts of monomers A to G present in polymerisate P in copolymerized form.
- the total amount of monomers A to G (total monomer amount) in the aqueous reaction medium can be initially taken before the polymerization reaction is initiated.
- the metering of the monomers A to G can be carried out as separate individual streams, as inhomogeneous or homogeneous (part) mixtures or as a monomer emulsion.
- the monomers A to G are advantageously metered in the form of a monomer mixture, in particular in the form of an aqueous monomer emulsion.
- dispersants are used which keep both the monomer droplets and the polymer particles formed dispersed in the aqueous medium and thus ensure the stability of the aqueous polymer dispersions produced.
- Suitable dispersants are both the protective colloids customarily used for carrying out free-radical aqueous emulsion polymerizations and emulsifiers.
- Suitable protective colloids are polyvinyl alcohols, polyalkylene glycols, alkali metal salts of polyacrylic acids and polymethacrylic acids, gelatin derivatives or acrylic acid, methacrylic acid, maleic anhydride, 2-acrylamido-2-one methylpropanesulfonic acid and / or 4-styrenesulfonic acid-containing copolymers and their alkali metal salts but also N-vinylpyrrolidone, N-vinylcaprolactam, N-vinylcarbazole, 1-vinylimidazole, 2-vinylimidazole, 2-vinylpyridine, 4-vinylpyridine, acrylamide, methacrylamide, amine-group-bearing acrylates, methacrylates , Acrylamides and / or methacrylamide containing homopolymers and copolymers.
- suitable protective colloids can be found in Houben-Weyl, Methods of Organic Chemistry, Volume XIV / 1,
- mixtures of protective colloids and / or emulsifiers can be used.
- dispersants used are exclusively emulsifiers whose relative molecular weights, in contrast to the protective colloids, are usually below 1000. They may be anionic, cationic or nonionic in nature.
- anionic emulsifiers are compatible with each other and with nonionic emulsifiers.
- anionic and cationic emulsifiers are usually incompatible with each other.
- emulsifiers are used in particular as dispersing aids.
- Nonionic emulsifiers are, for example, ethoxylated mono-, di- and tri-alkylphenols (EO degree: 3 to 50, alkyl radical: C 4 to C 12) and also ethoxylated fatty alcohols (EO degree: 3 to 80, alkyl radical: Cs to C36).
- Lutensol ® A grades C 2 Ci fatty alcohol EO units: 3 to 8
- Lutensol ® AO-marks C13C15- oxo alcohol ethoxylates, EO units: 3 to 30
- Lutensol ® AT-marks CieCis- fatty alcohol ethoxylates, EO units: 1 1 to 80
- Lutensol ® ON brands C10 oxo alcohol ethoxylates, EO units: 3 to 1: 1
- Lutensol ® tO brands C13 oxo alcohol ethoxylates, EO units: 3 to 20
- Typical anionic emulsifiers are, for example, alkali metal and ammonium salts of alkyl sulfates (alkyl radical: Cs to C12), of sulfuric monoesters of ethoxylated alkanols (EO degree: 4 to 30, alkyl radical: C12 to Cis) and ethoxylated alkylphenols (EO degree: 3 to 50, alkyl radical: C 4 to C 12), of alkyl sulfonic acids (alkyl radical: C 12 to C 18) and of alkylaryl sulfonic acids (alkyl radical: C 9 to C 18).
- Further anionic emulsifiers further compounds of the general formula (I)
- R 1 and R 2 are H atoms or C 4 - to C 24 -alkyl and are not simultaneously H atoms, and M 1 and M 2 may be alkali metal ions and / or ammonium ions, has been found to be suitable.
- R 1 and R 2 are preferably linear or branched alkyl radicals having 6 to 18 C atoms, in particular having 6, 12 and 16 C atoms or hydrogen, where R 1 and R 2 are not both simultaneously H atoms are.
- M 1 and M 2 are preferably sodium, potassium or ammonium, with sodium being particularly preferred.
- Particularly advantageous compounds (I) are those in which M 1 and M 2 are sodium, R 1 is a branched alkyl radical having 12 C atoms and R 2 is an H atom or R 1 .
- technical mixtures are used which have a proportion of 50 to 90 wt .-% of the monoalkylated product, such as Dowfax ® 2A1 (trademark of the Dow Chemical Company).
- the compounds (I) are well known, for example from US-A 4269749, and commercially available.
- Suitable cationic emulsifiers are generally primary, secondary, tertiary or quaternary ammonium salts containing C6-Cis-alkyl- or heterocyclic radicals, alkanolammonium salts, pyridinium salts, imidazolinium salts, oxazolinium salts, morpholinium salts, thiazolinium salts and salts of aminoxy quinolinium salts, isoquinolinium salts, tropylium salts, sulfonium salts and phosphonium salts.
- Examples include dodecylammonium acetate or the corresponding sulfate, the sulfates or acetates of the various 2- (N, N, N-trimethylammonium) ethylparaffinklaer, N-Cetylpyridiniumsulfat, N-Laurylpyridiniumsulfat and N-cetyl-N, N, N-trimethylammonium sulfate, N- Dodecyl ⁇ , ⁇ , ⁇ -trimethylammonium sulfate, N-octyl-N, N, N-trimethylammonium sulfate, N, N-distearyl-N, N-dimethylammonium sulfate and the gemini surfactant ⁇ , ⁇ '- (lauryldimethyl) ethylenediamine disulfate, ethoxylated tallow fatty alkyl -N-methyl ammonium sulphate, and ethoxy
- BASF SE about 1 1 ethylene oxide units.
- Numerous other examples can be found in H. Stumblee, Tensid-Taschenbuch, Carl-Hanser-Verlag, Kunststoff, Vienna, 1981 and in McCutcheon's, Emulsifiers & Detergents, MC Publishing Company, Glen Rock, 1989.
- anionic counterparts are as low as possible nucleophilic, such as perchlorate, sulfate, phosphate, nitrate and carboxylates, such as acetate, trifluoroacetate, trichloroacetate, propionate, oxalate , Citrate, benzoate, as well as conjugated anions of organosulfonic acids, such as, for example, methyl sulfonate, trifluoromethyl sulfonate and para-toluenesulfonate, furthermore tetrafluoroborate, tetraphenylborate, tetrakis (pentafluorophenyl) borate, tetrakis [bis (3,5-trifluoromethyl) phenyl ] borate, hexafluorophosphate, hexafluoroarsenate or hexafluoroantimonate.
- nucleophilic such as perchlorate, sulfate
- the emulsifiers which are preferably used as dispersing aids are advantageously used in a total amount of 0.005 and S 10% by weight, preferably 0.01 and 5% by weight, in particular 0.1 and 5% by weight, in each case based on the Polymonomerenmen- ge used.
- the total amount of the protective colloids used as dispersing aids in addition to or instead of the emulsifiers is often> 0.1 and -S 40 wt .-% and often ⁇ 0.2 and -S 25 wt .-%, in each case based on the total amount of monomers.
- the total amount of the dispersing aid in the aqueous reaction medium can be initially introduced before the initiation of the polymerization reaction.
- the addition of the main or the total amount of dispersing aid takes place in the form of an aqueous monomer emulsion.
- free-radical polymerization initiator can be both peroxides and azo compounds.
- redox initiator systems come into consideration.
- peroxides may in principle inorganic peroxides, such as hydrogen peroxide or peroxodisulfates, such as the mono- or di-alkali metal or ammonium salts of peroxodisulfuric, such as their mono- and di-sodium, potassium or ammonium salts or organic Peroxides such as alkyl hydroperoxides, for example tert-butyl, p-menthyl or Cumylhyd- roperoxid, and dialkyl or Diarylperoxide, such as di-tert-butyl or di-cumyl peroxide are used.
- inorganic peroxides such as hydrogen peroxide or peroxodisulfates, such as the mono- or di-alkali metal or ammonium salts of peroxodisulfuric, such as their mono- and di-sodium, potassium or ammonium salts or organic Peroxides such as alkyl hydroperoxides, for example tert-buty
- Suitable oxidizing agents for redox initiator systems are essentially the abovementioned peroxides.
- Suitable reducing agents may be sulfur compounds having a low oxidation state, such as alkali metal sulphites, for example potassium and / or sodium sulphite, alkali hydrogen sulphites, for example potassium and / or sodium hydrogen sulphite, alkali metal bisulphites, for example potassium and / or sodium metabisulphite, formaldehyde sulphoxylates, for example potassium and / or sodium formaldehyde.
- alkali metal sulphites for example potassium and / or sodium sulphite
- alkali hydrogen sulphites for example potassium and / or sodium hydrogen sulphite
- alkali metal bisulphites for example potassium and / or sodium metabisulphite
- formaldehyde sulphoxylates for example potassium and / or sodium formaldehyde.
- hydrosulfoxylate alkali metal salts, especially potassium and / or sodium salts, aliphatic sulfinic acids and alkali metal hydrogensulfides, for example potassium and / or sodium hydrogen sulfide, salts of polyvalent metals, such as iron (II) sulfate, iron (II) ammonium sulfate, Iron (II) phosphate, endiols such as dihydroxymaleic acid, benzoin and / or ascorbic acid and reducing saccharides such as sorbose, glucose, fructose and / or dihydroxyacetone.
- polyvalent metals such as iron (II) sulfate, iron (II) ammonium sulfate, Iron (II) phosphate, endiols such as dihydroxymaleic acid, benzoin and / or ascorbic acid and reducing saccharides such as sorbose, glucose, fructose and / or dihydroxyacetone.
- the amount of the radical initiator used based on the total amount of monomers, 0.01 to 5 wt .-%, preferably 0.1 to 3 wt .-% and particularly preferably 0.2 to 1, 5 wt .-%.
- the total amount of the radical initiator in the aqueous reaction medium prior to initiation of the polymerization reaction can be presented.
- Initiation of the polymerization reaction is understood to mean the start of the polymerization reaction of the monomers present in the polymerization vessel after radical formation of the radical initiator.
- the initiation of the polymerization reaction by adding radical initiator to the aqueous polymerization mixture in the polymerization vessel can be carried out under polymerization conditions.
- a partial or total amount of the radical initiator is added to the aqueous polymerization mixture containing the monomers present in the polymerization vessel under conditions which are not suitable for initiating a polymerization reaction, for example at low temperature, and polymerization conditions are subsequently set in the aqueous polymerization mixture .
- Under polymerisation tion conditions are generally those temperatures and pressures to understand, under which the free-radically initiated aqueous emulsion polymerization proceeds with sufficient polymerization. They are dependent, in particular, on the radical initiator used.
- the type and amount of the radical initiator, the polymerization temperature and the polymerization pressure are advantageously selected so that the free-radical initiator has a half-life of ⁇ 3 hours, more preferably ⁇ 1 hour and most preferably ⁇ 30 minutes, and there are always enough starting radicals available to effect the polymerization reaction to initiate and maintain.
- the reaction temperature for the free-radical aqueous emulsion polymerization is the entire range from 0 to 170 ° C into consideration. In this case, temperatures of 50 to 120 ° C, preferably 60 to 1 10 ° C and particularly preferably 70 to 100 ° C are applied in the rule.
- the free-radical aqueous emulsion polymerization can be carried out at a pressure of less than or equal to 1 atm [1.013 bar (absolute), atmospheric pressure], so that the polymerization temperature can exceed 100 ° C. and can be up to 170 ° C. In the presence of monomers A to F having a low boiling point, the emulsion polymerization is preferably carried out under elevated pressure.
- the pressure may be 1, 2, 1, 5, 2, 5, 10, 15 bar (absolute) or even higher values. If the emulsion polymerization is carried out under reduced pressure, pressures of 950 mbar, often 900 mbar and often 850 mbar (absolute) are set.
- the free-radical aqueous emulsion polymerization is advantageously carried out at 1 atm with exclusion of oxygen, in particular under an inert gas atmosphere, for example under nitrogen or argon.
- the aqueous reaction medium may in principle also in minor amounts ( ⁇ 5 wt .-%) include water-soluble organic solvents such as methanol, ethanol, isopropanol, butanols, pentanols, but also acetone, etc.
- the aqueous reaction medium preferably contains no such solvents.
- n-butyl chloride n-butyl bromide
- n-butyl bromide n-butyl bromide
- the total amount of radikalalkettenübertragenden compounds optionally used during the emulsion polymerization, based on the total amount of monomers, is usually ⁇ 5 wt .-%, often ⁇ 3 wt .-% and often ⁇ 1 wt .-%.
- radical-transferring compound optionally used is fed to the aqueous reaction medium before the initiation of the free-radical polymerization.
- a part or the whole amount of the radical chain transferring compound may be advantageously supplied to the aqueous reaction medium together with the monomers A to G during the polymerization.
- the preparation of the dispersion polymer P dispersions takes place in such a way that the monomers A to G under polymerization conditions up to a conversion of> 95 wt .-%, preferably> 99 wt .-% and particularly advantageously> 99.5 wt. % be implemented.
- the determination of the monomer conversion is familiar to the person skilled in the art and is carried out in particular by reaction calorimetric and / or spectroscopic methods. It is often advantageous if the dispersion polymer obtained after the end of the polymerization is subjected to P dispersions of an aftertreatment to reduce the residual monomer content. The aftertreatment is carried out either chemically, for example by completion.
- the dispersion polymer P dispersions of the invention usually have a polymer solids content of> 10 and -S 70 wt .-%, often ⁇ 20 and -S 65 wt .-% and often> 25 and -S 60 wt .-%, each based on the aqueous polymer dispersion, on.
- the number-average particle diameter (cumulant z-average) determined by quasi-elastic light scattering (ISO standard 13,321) is generally in the range> 10 and -S 1000 nm, preferably in the range> 50 and -S 600 nm and advantageously in the range> 100 to ⁇ 500 nm.
- the dispersion polymer P dispersions have a pH in the range from> 4.5 to -S 8 and in particular advantageously from> 5.5 to -S 7.5, in each case measured with a calibrated commercial pH. Meter at 23 ° C, on.
- dispersion polymer P powder compositions can be prepared from the dispersion polymer P dispersions according to the invention by customary drying methods (such as, for example, freeze drying or spray drying).
- the dispersion polymer P powder compositions can be prepared from the dispersion polymer P dispersions by spray drying methods familiar to the person skilled in the art.
- the dispersion polymer P dispersions are usually mixed with 0.1 to 30, often 5 to 15 wt .-%, based on the total amount of dispersion polymer P with so-called drying aid.
- drying aids are familiar to the person skilled in the art and are disclosed, for example, in EP-A 812872, page 5, line 20 to page 6, line 17, and the prior art indicated there.
- P-powder compositions can be used to prepare the dispersion polymer.
- liquid or solidifying drying aids are used. If, therefore, the binder compositions according to the invention are used for the production of mineral sealing slurries, it is advantageous to use liquefying drying aids, in particular polymers or oligomers which contain sulphonic acid groups, sulphonate groups, carboxyl groups or carboxylate groups, as described, for example, in EP-A 812872 , Page 5, lines 20 to 38, for the preparation of the corresponding dispersion polymer P powder compositions.
- the binder compositions according to the invention are to be used for the production of mineral repair mortars or for the production of mineral plasters, it is advantageous to use solidifying drying aids, in particular homopolymers or copolymers of vinyl alcohol, homopolymers or copolymers of vinylpyrrolidone or cellulose derivatives , as disclosed, for example, in EP-A 812872, page 5, lines 38 to 44, for the preparation of the corresponding dispersion polymer P powder compositions.
- the spray-drying of the inventive additivated dispersion polymer P dispersions is generally such that the additiv convinced dispersion polymer P dispersions at an inlet temperature TE of the hot air flow at 100 to 200 ° C, preferably at 120 to 160 ° C and an outlet temperature TA of the hot air flow of 30 to 90 ° C, preferably 50 to 90 ° C in a drying tower is sprayed.
- the spraying of the additized dispersion polymer P dispersions in the stream of hot air can take place, for example, by means of single-fluid or multi-fluid nozzles or via a rotating disk.
- the deposition of the dispersion polymer P powder compositions is normally carried out using cyclones or filter separators.
- the sprayed dispersion polymer dispersion dispersion and the hot air stream are preferably conducted in parallel.
- a finely divided mineral antiblocking agent known to those skilled in the art, such as, for example, finely divided silica gel which, in particular, prevents clumping of the particles of the polymer powder composition occurring during spray drying during prolonged storage.
- the dispersion polymer formed during drying also comprises P powder compositions which contain particles of the dispersion polymer P incorporated into a matrix of spray aids.
- the primary particle diameter of the particles of the dispersion polymer P embedded in the matrix of the spray assistant corresponds to the number-average particle diameter of the dispersion polymer P in the dispersion polymer P dispersion and lies in usually in the range> 10 and -S 1000 nm, preferably in the range> 50 and -S 600 nm and advantageously in the range> 100 to -S 500 nm.
- the binder compositions of the invention contain as essential components the dispersion polymer P and a mineral binder M, the amount of which is such that it is ⁇ 1 and -S is 10,000 parts by weight per 100 parts by weight of dispersion polymer P.
- Suitable mineral binders M are all pulverulent inorganic binders which, after being brought into contact with water, self-stabilize in the air under atmospheric conditions or partly also under water as a function of time, such as calcined lime, gypsum, granulated blastfurnace, fly ash , Silica fume, metakaolin, natural pozzolans or burnt oil shale, and in particular cements (see, for example, EN 197-1), such as Portland cements, white cements, thuraments, celites, alumina cements, swelling cements, blastfurnace cements and cements, for example blast furnace slag, fly ash, silica fume, metakaolin, natural pozzolana or burned oil shale was mixed.
- cements see, for example, EN 197-1
- the binder composition according to the invention is to be used for producing a mineral sealing slurry, then per 100 parts by weight of dispersion polymer P> 1 and -S 10,000 parts by weight, preferably> 5 and -S 500 parts by weight and particularly advantageously> 10 and -S 150 parts by weight of mineral binder M used. If, on the other hand, the binder composition according to the invention is to be used for the production of a mineral tile adhesive, per 100 parts by weight of dispersion polymer P> 1 and -S 100000 parts by weight, advantageously> 50 and -S 10000 parts by weight and particularly advantageously > 100 and -S 2000 parts by weight of mineral binder M used.
- mineral sealant formulations according to the invention are to be comprised of mineral binder M consisting of a mixture of Portland cement (DIN EN 197-1, CEM I to CEM V, with CEM I is preferred) with an alumina cement (DIN EN 14647).
- the weight ratio of Portland cement to alumina cement in the range> 0.01 and -S 3 is in particular in the range> 0.1 and -S 1 and preferably> 0.2 and -S 0.8.
- Particularly suitable as Portland cement are. Milke ® from Messrs. HeidelbergCement, Holcim normo ® 5R from the company Holcim or The Red ® from Messrs. Lafarge, while as alumina cement Istra ® 40 from. Calucem, Ciment Fondu ® or ternal ® from Messrs. Kerneos or Electroland ® from Messrs. Ciments Molins are particularly suitable.
- both pulverulent and aqueous binder compositions should be included.
- the pulverulent binder compositions are dry mixtures of the abovementioned dispersion polymer P powder compositions with the pulverulent mineral binders M which also contain customary pulverulent additives, such as sands or fillers and additives, such as defoamers, thickeners, depending on the intended use. Retention agents, retarders and / or accelerators in conventional, familiar to those skilled amount.
- powdery binder compositions have the advantage that they can be stored for a long time in the dry state and easily transported to their place of use, where they after mixing with water and optionally other additives, such as sand, gravel, broken rocks and other conventional additives be converted into the ready-made hydraulic binder formulations.
- the binder compositions of the present invention may also contain water to yield aqueous binder compositions.
- the aqueous binder compositions are obtained by, for example, the powdered mineral binder M, or powdered mineral M containing binder mixtures M containing, for example, fillers, such as sands, gravels, broken rocks and other conventional fillers or additives, a dispersion polymer P dispersion mixed and blended into ready-to-use hydraulic binder formulation.
- aqueous binder compositions can be obtained by the aforementioned pulverulent binder compositions (containing at least one mineral binder M and at least one dispersion polymer P powder composition), optionally with the addition of fillers, in particular sands, gravels, broken rocks and other conventional Fillers or additives, mixed with water to ready-hydraulic binder formulation.
- fillers in particular sands, gravels, broken rocks and other conventional Fillers or additives
- the weight ratio of water to mineral binder M is, depending on the field of application, in the range> 0.1 and -S 10, with mineral sealing slurries the weight ratio of water to mineral binder M in the range> 0.4 and -S 1, 5 and preferably in the range> 0.6 and -S 1.
- mineral sealing sludge formulations are to be comprised, whose dispersion polymer P is constructed in einpolynnerAlber form
- the aforementioned sealing sludge formulations are to be encompassed, their weight ratio of water to mineral binder M being in the range> 0.6 and ⁇ 1.
- aqueous binder compositions according to the invention are advantageously suitable for coating substrates.
- a method for coating a substrate should also be included, which is characterized in that an aqueous binder composition according to the invention, in particular the ready-to-use hydraulic binder, is applied to the surface of a substrate and then cured.
- the application rate is chosen so as to result in a dry-film thickness of 0.5 and 5 mm, and particularly advantageously 1 and 5 mm.
- Suitable substrates are in principle all organic and inorganic materials. According to the invention, however, it is particularly advantageous to use substrates which have a so-called “sucking surface", by which the person skilled in the art understands porous inorganic materials having a capillary action with respect to water, in particular set concrete, screed, plaster or plasterboard.
- the substrates coated with a binder composition should also be included according to the invention.
- binder compositions according to the invention are advantageously suitable for the production of coatings, in particular of mineral seals, which after their hardening have a low tendency to emit highly volatile organic constituents and thereby in particular meet the strict EC1 limit values.
- reaction mixture was cooled to 20 to 25 ° C (room temperature) and adjusted to a pH of 7.5 with a 10 wt% aqueous sodium hydroxide solution. There was obtained a polymer dispersion having a solids content of 54.9 wt .-%, with a light transmittance of 49.7% and a glass transition temperature Tg of - 1 1 ° C.
- the solids contents were generally determined by drying an aliquot (about 2 g) of the aqueous polymer dispersion at 140 ° C to constant weight. Two separate measurements were carried out in each case. The value given in the respective examples represents the mean value of the two measurement results.
- the light transmittances were generally determined after dilution of the aqueous polymer dispersions to 0.01% by weight at 20 ° C. using a Spectrophotometer DR / 2010 from Hach (USA) The layer thickness was 2.5 cm.
- the glass transition temperatures of the polymer were generally determined by the DSC method (differential scanning calorimetry, 20 K / min, nnidpoint measurement, DIN 53765).
- the comparative dispersion PV1 was prepared analogously to the preparation of the polymer dispersion P1. Only the composition was changed from 420 g to 210 g with respect to the monomer 2-ethylhexyl acrylate, from 273 g to 133 g with respect to the monomer styrene and from 630 g to 980 g with respect to the monomer ethyl acrylate.
- the comparative dispersion PV2 was prepared analogously to the preparation of the polymer dispersion P1. Only the composition was changed from 420 g to 560 g with respect to the monomer 2-ethylhexyl acrylate, from 273 g to 357 g with respect to the monomer styrene and from 630 g to 406 g with respect to the monomer ethyl acrylate.
- aqueous polymer dispersions were adjusted to a solids content of 50% by weight with deionized water.
- the components of the dry component T according to the invention such as Portland cement, alumina cement, calcium sulfate hemihydrate, quartz sand, lithium carbonate and citric acid, were weighed into a beaker as specified in Table 1 and homogenized in a tumble mixer for 1 minute.
- Table 1 Composition of the dry component T according to the invention of the mineral binder formulations
- Lithium carbonate powder (BCK Bau-Chemie-Kontor) 0.1
- Citric Acid Powder (BCK Bau-Chemie-Kontor) 0.25
- Quartz sand F36 (Quarzwerke Frechen) 79,25
- Comparative Drying Component V for the Mineral Binder Formulation
- the components of the comparative dry component V such as Portland cement, calcium carbonate and quartz sand, were weighed into a beaker as specified in Table 2 and homogenized in a tumble mixer for 1 minute.
- Quartz sand (0.1 - 0.4 mm)
- Both the water / cement ratio and the polymer / cement ratio were kept constant at 0.8 for the binder formulations DS1 according to the invention and the comparative formulations DSV1 to DSV4 (the individual components are given in Table 3).
- the binder formulations DS1 according to the invention and the comparative formulations DSV1 to DSV4 (the individual components are given in Table 3).
- 100 g of the dry component T or V were introduced into 32.2 g of the wet component with stirring at 300 rpm within 30 seconds. Stirring was then continued for 2 minutes at 600 rpm to ensure that the particular mineral binder formulation was homogeneously mixed and free of lumps.
- the respective mineral binder formulation was applied with a spatula with the aid of a frame made of stainless steel (length 25 cm, width 15 cm) onto a Teflon-covered plate (length 27 cm, width 17 cm). By scraping with a spatula over the stainless steel frame, it was ensured that the plate was covered with a homogeneous layer of 2.6 mm.
- the temperature was constant at 23 ° C and the relative humidity constant at 50% (standard climate).
- the respective dried binder formulations were removed from the plate and each 6 bone-shaped specimens punched out with the following dimensions: 7.5 cm total length; 1, 3 cm overall width; 0.4 cm bridge width; 3 cm bridge length. Care was taken that the respective specimens were not defective exhibited.
- the storage and testing of the respective test specimens was based on the requirements of AS / NZS 4858: 2004 (Wet area membranes). In each case 3 of the test specimens were stored for a further 13 days on a grate under standard conditions and then tested ("dry storage") . The remaining 3 specimens were stored on a grid for a further 6 days under standard conditions, then for 0.5 days in 0.5 molar aqueous KOH solution stored at 40 ° C and then dried.
- the mechanical testing of the test bones obtained was carried out on a ProLine Z010 universal testing machine from Zwick, Ulm (Germany).
- the test specimens were picked up by clamping jaws.
- the specimens were placed between the jaws so that the bridge was clearly visible.
- the test was carried out at a speed of 50 mm / minute. Determined were the force and the elongation at which it came to the breaking of the test specimen. Taking into account the thickness of the specimen, the breaking strength and the elongation at break could be determined.
- the values shown in Tables 4 and 5 represent the average values of the results obtained. In Table 4, the results after dry storage and in Table 5 the results after storage in the aqueous KOH solution are shown.
- Table 4 Breaking strength and elongation at break of the binder formulations DS1 and DSV1 to DSV3 after 14 days of dry storage.
- the constituents of the dry component T according to the invention such as Portland cement, alumina cement, calcium sulfate hemihydrate, quartz sand, lithium carbonate and citric acid, were weighed into a beaker as specified in Table 1 and homogenized in a tumble mixer for 1 minute.
- the components of the comparative dry component V such as Portland cement, calcium carbonate and quartz sand, were weighed into a beaker as specified in Table 2 and homogenized in a tumble mixer for 1 minute. 3.4 Mixing the mineral binder formulations and coating the substrates
- Both the water / cement ratio and the polymer / cement ratio were kept constant at 0.8 for the novel binder formulation DS1 and the comparative formulations DSV1 to DSV4.
- a mixer specified according to DIN EN 196-1 (2005-05) 1500 g of the dry component were introduced into 483 g of the wet component with stirring at 300 rpm within 30 seconds. Subsequently, stirring was continued for 2 minutes at 600 rpm to ensure that the aqueous binder formulations were homogeneously mixed and free from Lumps were.
- the respective mineral binder formulations were applied with a spatula with the aid of a frame made of stainless steel (length 34 cm, width 14 cm) on a non-fat glass plate (length 35 cm, width 15 cm). Scrapers with a spatula over the stainless steel frame ensured that the panel was covered with a homogenous layer of 3 mm each.
- the mixing of the mineral binder formulations and the coating were carried out under normal conditions.
- the coating of the glass plates and the determination of the volatile constituents of the aqueous binder composition were carried out according to the GEV test method - "Determination of volatile organic compounds for the characterization of emission-controlled installation materials, adhesives, construction products and parquet coatings" in the version of 15.04.2013 by Eurofins Product Testing A / S in Denmark.
- the stainless steel test chamber was operated in accordance with the requirements of DIN EN ISO 16000-9 (Indoor Air Pollution - Part 9: Determination of the emission of volatile organic compounds from construction products and furnishings - Emission Chamber Method, 2008-04), unless otherwise specified.
- the temperature in the chamber, as well as the supply air was regulated to 23 ⁇ 1 ° C and a humidity of 50 ⁇ 5%.
- the air exchange rate was regulated to 0.5 r 1 at a loading of 0.4 m 2 / m 3 .
- the chamber volume was 1 19 liters.
- Air sampling for the first VOC test was done for 3 days (72 ⁇ 1 hour) after application of the coating.
- Sampling and determination of VOC was performed according to DIN EN ISO 16000-6 (indoor air contaminants - Part 6: Determination of VOC in indoor air and in test chambers, sampling on TENAX TA ® adsorption columns, thermal desorption and gas chromatography with MS / FID; 04). Individual substances from a concentration of 1 ⁇ g / m 3 were thus detected and quantified.
- the columns filled with TENAX TA ® 60/80 were this purged with a stream of helium.
- the sampling was then carried out by passing a volume flow of 80 ml per minute through the TENAX adsorption columns from the test chamber over a period of 120 minutes. Overloads were prevented by the superimposition of two pipes.
- the determination The VOC was carried out after thermal desorption in the helium stream by means of a gas chromatograph coupled to a mass spectrometer from Perkin-Elmer. A non-polar Agilent column was used with the following characteristics: column length 30 m; inner diameter 0.25 mm; Film thickness 0.25 ⁇ (HP-1). A duplicate determination was made.
- a quality seal EC1 according GEV EMICODE ® can be obtained if the emissions of the films have after 3 days a TVOC value of ⁇ 1000 g / m 3 and after 28 days of ⁇ 100 g / m 3.
- the required TVOC values for the quality label EC1 can not be met with the comparative formulations. This is only possible with the binder formulation DS1 according to the invention and the comparative formulation DSV1, the latter not meeting the requirements of mechanical properties, as shown in Table 5.
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Abstract
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CN107619231A (zh) * | 2017-09-28 | 2018-01-23 | 贵州益新装配式新型建材有限公司 | 一种高强度瓷砖粘结剂及其制备方法 |
BR112020021582B1 (pt) * | 2018-04-28 | 2023-12-12 | Dow Global Technologies Llc | Composição cimentícia modificada com polímero e método para preparar uma composição cimentícia modificada com polímero |
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2015
- 2015-01-12 CA CA2937581A patent/CA2937581A1/en not_active Abandoned
- 2015-01-12 AU AU2015208371A patent/AU2015208371A1/en not_active Abandoned
- 2015-01-12 EP EP15701688.2A patent/EP3097127A1/de not_active Withdrawn
- 2015-01-12 CN CN201580015175.2A patent/CN106133010B/zh not_active Expired - Fee Related
- 2015-01-12 WO PCT/EP2015/050387 patent/WO2015110301A1/de active Application Filing
- 2015-01-12 US US15/113,324 patent/US10384976B2/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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WO2015110301A1 (de) | 2015-07-30 |
CN106133010A (zh) | 2016-11-16 |
AU2015208371A1 (en) | 2016-08-11 |
US10384976B2 (en) | 2019-08-20 |
US20170008801A1 (en) | 2017-01-12 |
CA2937581A1 (en) | 2015-07-30 |
CN106133010B (zh) | 2019-10-25 |
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