WO2011128128A1 - Alkyl- und amino-funktionalisierte siloxane mit bis(alkoxysilyl)amin zur massenhydrophobierung mineralischer baustoffe - Google Patents
Alkyl- und amino-funktionalisierte siloxane mit bis(alkoxysilyl)amin zur massenhydrophobierung mineralischer baustoffe Download PDFInfo
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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
- C04B24/40—Compounds containing silicon, titanium or zirconium or other organo-metallic compounds; Organo-clays; Organo-inorganic complexes
- C04B24/42—Organo-silicon compounds
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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
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- 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
- C04B24/12—Nitrogen containing compounds organic derivatives of hydrazine
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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
- 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
- C04B28/10—Lime cements or magnesium oxide cements
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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
- 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
- C04B28/14—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 calcium sulfate cements
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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
- 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
- C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
- C04B41/4905—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
- C04B41/495—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as oligomers or polymers
- C04B41/4961—Polyorganosiloxanes, i.e. polymers with a Si-O-Si-O-chain; "silicones"
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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
- 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
- C04B41/64—Compounds having one or more carbon-to-metal of carbon-to-silicon linkages
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
- C08L83/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/65—Water proofers or repellants
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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
- C04B2111/25—Graffiti resistance; Graffiti removing
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
- C08G77/26—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen nitrogen-containing groups
Definitions
- the invention relates to a composition for hydrophobing, preferably for mass hydrophobization of mineral building materials, in particular mineral and / or alkaline earth metal-containing and substantially non-silicate building materials, comprising at least one water-soluble amino- and alkyl-functional co-condensate siloxane and a bis ( alkoxysilyl) amine and its hydrolysis products, a process for the preparation of this composition and the use of the composition for the mass hydrophobization of preferably gypsum.
- Gypsum is used under various conditions of use as a construction and material.
- the person skilled in the art knows that gypsum is calcium sulfate, which is present in various forms
- Hydration levels may be present. Due to the easy drainability (dehydration) of, for example, naturally occurring or obtained from industrial processes, CaSO 4 » 2H 2 O, it has a diverse range of applications.
- Dehydrated gypsum anhydrite or hemihydrate obtains a more or less high strength by adding water to form a crystalline structure and can then be used as a building material.
- Gypsum products such as gypsum boards and gypsum fibreboards are often made by premixing gypsum anhydrite or hemihydrate in water and spreading the resulting slurry over large areas
- gypsum In humid rooms or outdoor applications, however, the use of gypsum as a building material is limited, since even set gypsum has a certain solubility in water and would dissolve when soaked. Water-repellent (hydrophobic) plasterboards and elements are therefore used. Particularly desirable and economical is the hydrophobing of gypsum elements in the mass (Massenhydrophobitation) already during production. It is advantageously possible to provide the aqueous gypsum slurry with an additive which gives the set material the hydrophobic properties. This is advantageously an aqueous system or a water-soluble or dispersible system which can be added to the dehydrated gypsum anhydrite or hemihydrate together with the mixing water.
- EP 1 1 12986 and US 2006/0107876 each disclose processes for producing water-repellent plasters in which silanes and / or siloxanes and at least one additional catalyst are added to a gypsum mixture.
- US 2006/0107876 discloses the use of a glycol-functionalized siloxane in the presence of alkali metal hydroxides.
- EP 1 1 12986 relates to
- GB 2433497 discloses hydrophobized gypsum mixtures obtained by adding the powdered gypsum to a hydrolyzable organosilane, water and a catalyst whereby the organosilane is hydrolyzed only in the presence of the gypsum. For this purpose it is recommended to add the catalyst to the monomeric organosilanes only immediately before the addition of the stucco. Disadvantage of the mixtures described is the VOC content of the alkoxy silanes preferably used.
- EP 0 819 663 B1 discloses a gypsum mixture in which a physical mixture of a lower alkyl group-substituted silane and a trialkoxysilane substituted with amino groups, amino-lower alkylamino groups or dialkylenetriamine groups are uniformly dispersed.
- the possible weight ratios of the two silanes are 1: 1 to 9: 1.
- the entire aqueous gypsum mixture is VOC-containing and still contains the entire hydrolysis of the two silanes. The disadvantage of this VOC content in the industrial production of
- EP 0796826 discloses hydrophobic gypsum mixtures which, in addition to the silane mixtures described in EP 0819663, also contain polysiloxanes. These are H-substituted polysiloxanes, with the disadvantages explained above.
- WO 2007/009935 discloses a process in which the VOC content of the hydrophobing components is lowered by preparing a precondensate before the resulting siloxane is added to the gypsum mixture.
- a disadvantage in turn is the necessity of adding a second catalyst to the gypsum mixture. If this second catalyst is dispensed with, the achievable water-repellent effect is not reliably given sufficiently strong.
- the object of the present invention is therefore to provide a composition and a process which provides the hydrophobing of
- compositions for the mass hydrophobization of mineral building materials in particular of alkali and / or alkaline earth metal-containing and substantially non-silicate building materials, comprising as hydrophobing a (i) water-soluble amino and
- the invention thus relates to a composition, in particular for the mass hydrophobization of mineral building materials, containing essentially water and as a water repellent
- - B independently corresponds to an aminoalkyl radical of the general formula IVa or IVb
- R 10 is a benzyl, Aryl, vinyl, formyl radical and / or a linear, branched and / or cyclic alkyl radical having 1 to 8 carbon atoms, and / or
- C corresponds to a linear, branched or cyclic alkyl radical having 1 to 20 C atoms
- - D independently corresponds to a linear, branched or cyclic alkyl radical having 1 to 8 carbon atoms
- R 2 , R 4 and / or R 6 are independently substantially hydrogen and R 3 and / or R 5 independently correspond to a linear, branched or cyclic alkyl radical having 1 to 4 C atoms and / or aryl radical and
- HX represents an acid, where X is an inorganic or organic acid radical
- A is a bivalent amine
- R 1 is independently hydrogen, a linear, branched or cyclic alkyl radical Radical having 1 to 4 C atoms
- A is preferably a bis-amino-functional group of the formula III
- h, I and k in formula IVa may independently and also m or p in formula IVb independently correspond to a number selected from 1, 2, 3, 4, 5 or 6.
- compositions of the invention have a lower VOC content than known compositions for hydrophobicizing mineral
- plasterboard or gypsum elements produced do not have the disadvantages mentioned, as they are known from the prior art have.
- the disadvantages mentioned as they are known from the prior art have.
- Suitable inorganic or organic acid radicals are those known to one skilled in the art and which can be formed, for example, by addition of HCl, HNO 3 , H 2 SO 4 , H 3 PO 4 , formic acid, acetic acid and other customary acids.
- bis (alkoxysilyl) amines of the formula II are:
- Bis (alkoxysilyl) alkyleneamines bis (trialkoxysilylalkyl) amine, bis-N, N ' - (trialkoxysilylalkyl) alkylenediamine and / or bis-N, N ' - (trialkoxysilylalkyl) dialkylenetriamine, especially bis (trialkoxysilylpropyl) amine, bis (triethoxysilylpropyl ) amine,
- Bis (triethoxysilylpropyl) amine ((H 5 C 2 O) 3 Si (CH 2 ) 3 NH (CH 2 ) 3 Si (OC 2 H 5 ) 3 , bis-AMEO is particularly preferred.
- co-condensate siloxanes are listed below, the co-condensate siloxanes according to the invention are always meant.
- Preferred co-condensate siloxanes of the formula I include: As amino-functional structural elements, in particular
- aminopropyl diaminoethylene-3-propyl
- Triaminodiethylene-3-propyl H 2 N (CH 2 ) 2 NH (CH 2 ) 2 NH (CH 2 ) 3 Si (OCH 3 ) 3 , aminopropyl and methyl as R 3 ; 2-aminoethyl, 2-aminoethyl and methyl as R 3 , 6-amino-n-hexyl, 6-amino-n-hexyl and methyl as R 3 ; 3-amino-n-propyl, 1-aminomethyl, 1-aminomethyl and methyl as R 3 ; N-butyl-3-aminopropyl, N-butyl-3-aminopropyl and methyl as R 3 ; N-butyl-1-aminomethyl, N-butyl-1-aminomethyl, and methyl as R 3 ; N-formyl-3-aminopropyl, N-formyl-3-aminopropyl and methyl as R 3 .
- C is a linear or branched alkyl radical having 1 to 20 C atoms, in particular having 1 to 8 C atoms, preferably a methyl, ethyl, particularly preferably n-propyl, iso-propyl, n-butyl, iso-butyl, hexyl or octyl radical;
- D is a linear, branched or cyclic alkyl radical having 1 to 8 C atoms, preferably a methyl, ethyl, more preferably n-propyl, iso-propyl, n-but
- the co-condensates can be linear oligomers having M and D structures, or cyclic structures of D structures or even crosslinked oligomers having M, D and T structures, as is familiar to the person skilled in the art for siloxane (O -Si-O -) - bridge-linked co-condensates of alkoxysilanes are known, which can be formed by hydrolysis and at least partial condensation of alkoxysilanes.
- the co-condensates used may be random, randomly distributed co-condensates and / or block co-condensates.
- compositions have a ratio of amino-functional groups A and B to alkyl-functional groups C and / or D in the composition ranging from 1:10 to 10: 1, more preferably from 1: 5 to 5: 1, more particularly preferably 1: 3 to 3: 1. It turned out that this
- the co-condensate siloxanes are preferably prepared by hydrolysis and / or condensation of amino-functionalized alkoxysilanes such as
- alkyltrialkoxysilane and / or a dialkyldialkoxysilane in particular they are co-condensed or block-co-condensed, and the resulting hydrolysis and optionally added alcohol was removed by measures known to those skilled in the art.
- Examples of preferably usable aminoalkylalkoxysilanes for the preparation of the co-condensate siloxanes are: aminopropyltrimethoxysilane (H 2 N (CH 2 ) 3 Si (OCH 3 ) 3, AMMO),
- Diaminoethylene-3-propyltrimethoxysilane H 2 N (CH 2) 2 NH (CH 2 ) 3 Si (OCH 3 ) 3, DAMO); Triaminodiethylene-3-prolytrimethoxysilane H 2 N (CH 2) 2 NH (CH 2) 2 NH (CH 2 ) 3 Si (OCH 3 ) 3 (TRIAMO), aminopropylmethyldiethoxysilane, aminopropylmethyldimethoxysilane, 2-aminoethyltrimethoxysilane, 2-aminoethylmethyldimethoxysilane, 2-aminoethyl - phenyl-dimethoxysilane, 2-aminoethyl-triethoxysilane, 2-aminoethyl-methyl-diethoxysilane, 2-aminoethyl-triethoxysilane, (2-aminoethylamino) -ethyltriethoxysilane,
- amino-functional co-condensate siloxanes correspond to one of the general formulas: C-Si (R 5 ) y (OR 4 ) 3-y or D 2 Si (OR 4 ) 2 : such as propyltrimethoxysilane (PTMO), dimethyldimethoxysilane (DMDMO), dimethyldiethoxysilane, Methyltriethoxysilane (MTES), propylmethyldimethoxysilane, propylmethyldiethoxysilane, n-octylmethyldimethoxysilane, n-hexylmethyldimethoxysilane, n-hexylmethyldiethoxysilane, propylmethyldiethoxysilane, propylmethyldiethoxysilane, propyltriethoxysilane, isobutyltrimethoxysilane, isobutyltriethoxysilane , Octyltrimethoxysilane, octyl
- compositions according to the invention are characterized in that they have only a low VOC in the composition consisting of co-condensate siloxane, in particular of the formula I and bis (alkoxysilyl) amine of the formula II and their hydrolysis and / or condensation products and optionally water Content of slightly above> 200 g / l, preferably below 150 g / l, more preferably below 10 g / l. Determined according to ASTM D5095-91.
- the invention also relates to compositions comprising at least one mineral building material, in particular at least one alkali metal and / or alkaline earth metal-containing substantially non-silicate building material,
- composition according to the invention which is suitable for the mass hydrophobization of mineral building materials, at least one mineral building material, water and as a hydrophobing agent, the co-condensate, in particular the siloxane of the formula I, and the bis (alkoxysilyl) amine of the formula II, a mixture this or their hydrolysis and / or condensation products, wherein the content of this composition of hydrophobing agent is 0.002 to 10 wt .-%, in particular 0.01 to 5 wt .-%, preferably 0.1 to 4 wt .-%, especially preferably 0.1 to 3.5 wt .-%, particularly preferably 0.2 to 3.0 wt .-%, more preferably 0.2 to 1, 0 wt .-%, ad 100 wt .-% with building material and water.
- the invention also provides a process for the preparation of a
- composition in particular for mass hydrophobization of mineral building materials, and a composition obtainable by this process, comprising a mixture (I) water-soluble amino- and alkyl-functional co-condensate siloxanes and water, wherein the siloxanes, in particular derived from alkoxysilanes, and
- crosslinking structural elements which form chain-like, cyclic and / or crosslinked structures, where at least one structure corresponds in an idealized form to the general formula I,
- - B independently corresponds to an aminoalkyl radical of the general formula IVa or IVb
- R 10 corresponds to a benzyl, aryl, vinyl, formyl radical and / or a linear, branched and / or cyclic alkyl radical having 1 to 8 C atoms, and / or
- C corresponds to a linear, branched or cyclic alkyl radical having 1 to 20 C atoms
- R 2 , R 4 and / or R 6 are independently substantially hydrogen and R 3 and / or R 5 independently correspond to a linear, branched or cyclic alkyl radical having 1 to 4 C atoms and / or aryl radical and
- a bis (alkoxysilyl) amine of the formula II is preferably used with A in formula II of a bis-amino-functional group of the formula III,
- a ratio of the amino-functional groups A and B to alkyl-functional groups C and D is set in the range from 1:10 to 10: 1, preferably 1: 5 to 5: 1, most preferably 1: 3 to 3: 1.
- Bulk hydrophobized mineral building materials having these compositions exhibit very good hydrophobing properties even with only a small amount of hydrophobing agent being added and, for example, reduce the water absorption capacity of gypsum from over 24% by weight to about 1.2% by weight.
- the process according to the invention preferably comprises the following step, in which (i) the at least one co-condensate, in particular the siloxane of the formula I, and at least one bis (alkoxysilyl) amine of the formula II, preferably Bis (triethoxysilylpropyl) amine or bis (trimethoxysilylpropyl) annine, a mixture of these or their hydrolysis and / or condensation products, and optionally water with (ii) a mixture containing at least one mineral building material, in particular an alkali and / or alkaline earth metal-containing and in Essentially non-siliceous building material and water is mixed, preferably one
- Calcium sulfate in various forms of hydration more preferably a calcium hemihydrate or calcium sulfate anhydrite.
- the building material containing mineral alkali metal and / or alkaline earth metal is a gypsum,
- Gypsum anhydrite gypsum hydrate, calcite, calcite, magnesite, limestone, chalk,
- the building material is a gypsum anhydrite, gypsum hemihydrate.
- a ratio of building material to water of 4: 1 to 1: 4 is set, in particular for gypsum, gypsum anhydrite and / or gypsum hemihydrate to water from 4: 1 to 1: 4, preferably to about 1: 2.
- composition comprising at least one mineral building material, water and as well as
- Hydrophobizing agent at least one co-condensate, in particular siloxane of the formula I, and bis (alkoxysilyl) amine of the formula II, a mixture of these or their hydrolysis and / or condensation products prepared in which the content of this composition of water repellents to 0.002 to 10 wt. -% is set, in particular to 0.01 to 5 wt .-%, preferably 0.1 to 4 wt .-%, particularly preferably 0.1 to 3.5 wt .-%, particularly preferably to 0.2 to 3.0 wt .-%, more preferably to 0.2 to 1, 0 wt .-%, ad 100 wt .-% with building material and water.
- a shaping of the composition containing water and building material can take place. Therefore, in a subsequent process step (i) optionally shaped and (ii) cured.
- the invention also provides a process for the preparation of a
- composition as described above, wherein in particular the water containing composition, (i) is optionally formed, and (ii) is cured. Depending on requirements, after the shaping of supernatant water
- composition hydrophobêt in the mass comprising a co-condensate siloxane, in particular of the formula I, and a bis (alkoxysilyl) amine of the formula II, their hydrolysis and / or
- the invention also provides a process in which (i) at least one cocondensate siloxane, in particular of the formula I, and one bis (alkoxysilyl) amine of the formula II having a ratio of the amino-functional groups A and B to alkyl functional groups C and / or D are mixed in the range from 1:10 to 10: 1, preferably 1: 5 to 5: 1, very particularly preferably 1: 3 to 3: 1; and (ii) gypsum anhydrite or hemihydrate is mixed with water; in particular in the ratio of 4: 1 to 1: 4, preferably from 3: 1 to 1: 3, particularly preferably from 3: 1 to 1: 1, better by 2: 1; and (iii) to the mixture of (ii), the mixture of (i) is added and
- the mixture prepared in (iii) is transferred to a mold or transferred to a belt, which may be a filter belt, and (v) cured.
- a belt which may be a filter belt
- step (iv) application to cardboard can also be provided.
- At least one of the following components from the series of pigments, fillers, binders, crosslinkers, optical brighteners, paint assistants or other auxiliaries may be added to the composition according to the invention.
- the invention also provides the use of the invention
- Composition comprising the co-condensate siloxane and bis (alkoxysilyl) amine and / or their hydrolysis or condensation products for the mass hydrophobization of mineral building materials, in particular mineral and / or alkaline earth metal-containing and essentially non-silicate building materials, alkali metal and / or alkaline earth metal sulfate, alkali metal and / or alkaline earth metal carbonate, which comprise the alkali metal and alkaline earth metals and are present independently of one another as anhydrate, as hydrate, as modifications thereof or as a mixture; for the mass hydrophobization of mineral elements
- Reflux are submitted under nitrogen blanketing 442 g of 3-aminopropyltriethoxysilane and 356 g of isobutyltrimethoxysilane. Within 30 minutes, 144 g of water are added dropwise. The temperature should not rise above 60 ° C, if necessary, to cool. The reaction mixture is stirred for 2 hours at 60.degree. Then replace the reflux condenser with a
- Hydrolysis alcohol A mixture of 500 g of water, 120.5 g of formic acid and 0.42 g of hydrochloric acid is then added dropwise within 30 minutes. The temperature should again not rise above 60 ° C, if necessary, to cool. At a pressure of 150 mbar and a bottom temperature of 50 ° C, a methanol / ethanol / water mixture is now distilled off within about 5 hours and replaced at the same time by water. In this case, water is added dropwise so that the volume of the solution remains constant.
- Example 1 If the head temperature is about 50 ° C and the top product consists only of water, the distillation is stopped.
- Example 1 If the head temperature is about 50 ° C and the top product consists only of water, the distillation is stopped.
- Example 1 If the head temperature is about 50 ° C and the top product consists only of water, the distillation is stopped.
- Example 1 If the head temperature is about 50 ° C and the top product consists only of water, the distillation is stopped.
- the product from Preparation Example 1 is mixed with bis (triethoxysilylpropyl) amine in a ratio of 1: 6. The mixture is stirred for a few minutes and then used.
- Unmodified, commercially available plaster (eg the company Knauf) is added to a container with water.
- Unmodified, commercially available plaster (eg the company Knauf) is added to a container with water.
- the mass ratio of water to gypsum equals 0.5.
- the mixture prepared under Example 1 is added and homogenized by stirring. Subsequently, the
- the underwater storage is carried out in accordance with the specifications of DIN EN 520.
- the weight increase of the specimens is measured.
- the weight gain should be less than 5 wt .-%.
- the following table shows the results of the test.
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Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020127029407A KR20130040886A (ko) | 2010-04-12 | 2011-02-14 | 무기 건축 재료의 대량 소수화를 위한 비스(알콕시실릴)아민을 포함하는 알킬- 및 아미노-관능화 실록산 |
| RU2012147665/05A RU2012147665A (ru) | 2010-04-12 | 2011-02-14 | Алкил- и аминофункционализованные силоксаны с бис(алкоксисилил)амином для гидрофобизации в массе минеральных строительных материалов |
| EP11705492A EP2558539A1 (de) | 2010-04-12 | 2011-02-14 | Alkyl- und amino-funktionalisierte siloxane mit bis(alkoxysilyl)amin zur massenhydrophobierung mineralischer baustoffe |
| CN2011800289694A CN102939341A (zh) | 2010-04-12 | 2011-02-14 | 用于无机建筑材料的坯料疏水化(Massenhydrophobierung)的含双(烷氧基甲硅烷基)胺的烷基-和氨基-官能化的硅氧烷 |
| US13/640,638 US20130092052A1 (en) | 2010-04-12 | 2011-02-14 | Alkyl- and amino-functionalized siloxanes comprising bis(alkoxysilyl)amine for the mass hydrophobization of inorganic building materials |
| JP2013504176A JP2013523593A (ja) | 2010-04-12 | 2011-02-14 | 鉱物性建材の材料疎水化のためのアルキル官能化及びアミノ官能化シロキサンとビス(アルコキシシリル)アミン |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010003869A DE102010003869A1 (de) | 2010-04-12 | 2010-04-12 | Alkyl- und Amino-funktionalisierte Siloxane mit Bis(alkoxysilyl)amin zur Massenhydrophobierung mineralischer Baustoffe |
| DE102010003869.5 | 2010-04-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011128128A1 true WO2011128128A1 (de) | 2011-10-20 |
Family
ID=43858362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2011/052100 Ceased WO2011128128A1 (de) | 2010-04-12 | 2011-02-14 | Alkyl- und amino-funktionalisierte siloxane mit bis(alkoxysilyl)amin zur massenhydrophobierung mineralischer baustoffe |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20130092052A1 (de) |
| EP (1) | EP2558539A1 (de) |
| JP (1) | JP2013523593A (de) |
| KR (1) | KR20130040886A (de) |
| CN (1) | CN102939341A (de) |
| DE (1) | DE102010003869A1 (de) |
| RU (1) | RU2012147665A (de) |
| WO (1) | WO2011128128A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9040608B2 (en) | 2010-04-01 | 2015-05-26 | Evonik Degussa Gmbh | Curable mixture |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102985385B (zh) * | 2010-03-08 | 2016-03-16 | 陶氏环球技术有限责任公司 | 用于异氰酸酯和硅烷官能化粘合剂的水基底漆组合物 |
| DE102011007137A1 (de) | 2011-04-11 | 2012-10-11 | Evonik Degussa Gmbh | Lösung umfassend organofunktionelle Alkali-Siliconate, Silicate sowie Verfahren zu deren Herstellung |
| DE102011007142A1 (de) | 2011-04-11 | 2012-10-11 | Evonik Degussa Gmbh | Lösung umfassend Propyl-funktionelle Alkali-Siliconate, Silikate sowie Verfahren zu deren Herstellung |
| DE102011086362A1 (de) | 2011-11-15 | 2013-05-16 | Evonik Industries Ag | Zusammensetzung umfassend Block-Co-Kondensate von Propyl-funktionellen Alkali-Siliconaten und Silicaten sowie Verfahren zu deren Herstellung |
| DE102014206359A1 (de) | 2014-04-03 | 2015-10-08 | Evonik Degussa Gmbh | VOC-arme Dialkyl-funktionelle Alkoxysiloxane, Verfahren und deren Verwendung als hydrophobierende Imprägniermittel für mineralische Baustoffe |
| DE102015104945B4 (de) * | 2014-10-01 | 2016-05-04 | Hochschule Karlsruhe-Technik Und Wirtschaft | Markersystem, inbesondere für die Bestimmung der Eindringtiefe von siliziumorganischen Hydrophobierungsmitteln in mineralischen Materialien |
| DE102016215260A1 (de) * | 2016-08-16 | 2018-02-22 | Evonik Degussa Gmbh | Verwendung einer (Alkylalkoxysily)amin-, Bis-(alkylalkoxysilyl)amin und/oder Tris-(alkylalkoxysilyl)amin-enthaltenden Zusammensetzung |
Citations (14)
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| US5051129A (en) * | 1990-06-25 | 1991-09-24 | Dow Corning Corporation | Masonry water repellent composition |
| DE4124892A1 (de) | 1990-07-27 | 1992-03-05 | Georgia Pacific Corp | Verfahren zur herstellung eines wasserbestaendigen gipsgemisches |
| US5110684A (en) | 1990-11-07 | 1992-05-05 | Dow Corning Corporation | Masonry water repellent |
| EP0796826A1 (de) | 1996-03-19 | 1997-09-24 | Dow Corning Limited | Verfahren zur Hydrophobierung von Gips |
| EP0819663A1 (de) | 1996-07-17 | 1998-01-21 | Dow Corning Limited | Gipsmischung, die ein hydrophobes Additiv enthält, und Verfahren zur Hydrophobierung von Gips |
| WO2000047536A1 (fr) | 1999-02-12 | 2000-08-17 | Lafarge Platres | Element de construction prefabrique a base de platre, presentant une resistance a l'eau |
| EP1112986A1 (de) | 1999-12-30 | 2001-07-04 | United States Gypsum Company | Verwendung von Polymethylhydrogensiloxan zur Herstellung von wasserbeständige Gipsgegenstände und Gips/Holzfaser-Bauplatte und Gipsbauplatte |
| US6610782B1 (en) * | 2001-11-20 | 2003-08-26 | Lindley Laboratories, Inc. | Binary silane emulsions for rendering absorbent substrates water repellant |
| DE10220659A1 (de) | 2002-05-09 | 2003-11-27 | Wacker Chemie Gmbh | Behandlung von Gips mit H-Siloxan und Stärkeether |
| US20060107876A1 (en) | 2004-11-25 | 2006-05-25 | Wacker-Chemie Gmbh | Glycol-functional siloxane mixture |
| WO2007009935A2 (en) | 2005-07-15 | 2007-01-25 | Dow Corning Corporation | Hydrophobing minerals and filler materials |
| US20070028809A1 (en) | 2005-08-08 | 2007-02-08 | Wacker Chemical Corporation | Water repellant gypsum compositions |
| GB2433497A (en) | 2005-12-20 | 2007-06-27 | Dow Corning | Hydrophobic gypsum |
| WO2009030538A1 (de) * | 2007-08-28 | 2009-03-12 | Evonik Degussa Gmbh | Wässrige silansysteme basierend auf bis(trialkoxysilylalkyl)aminen |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5998498A (en) * | 1998-03-02 | 1999-12-07 | Johnson & Johnson Vision Products, Inc. | Soft contact lenses |
| DE102008000595A1 (de) * | 2008-03-11 | 2009-09-17 | Evonik Degussa Gmbh | Nachvernetzendes Wachs und Verfahren zu seiner Herstellung |
-
2010
- 2010-04-12 DE DE102010003869A patent/DE102010003869A1/de not_active Withdrawn
-
2011
- 2011-02-14 JP JP2013504176A patent/JP2013523593A/ja not_active Withdrawn
- 2011-02-14 KR KR1020127029407A patent/KR20130040886A/ko not_active Ceased
- 2011-02-14 RU RU2012147665/05A patent/RU2012147665A/ru not_active Application Discontinuation
- 2011-02-14 EP EP11705492A patent/EP2558539A1/de not_active Withdrawn
- 2011-02-14 CN CN2011800289694A patent/CN102939341A/zh active Pending
- 2011-02-14 WO PCT/EP2011/052100 patent/WO2011128128A1/de not_active Ceased
- 2011-02-14 US US13/640,638 patent/US20130092052A1/en not_active Abandoned
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|---|---|---|---|---|
| US5051129A (en) * | 1990-06-25 | 1991-09-24 | Dow Corning Corporation | Masonry water repellent composition |
| DE4124892A1 (de) | 1990-07-27 | 1992-03-05 | Georgia Pacific Corp | Verfahren zur herstellung eines wasserbestaendigen gipsgemisches |
| US5110684A (en) | 1990-11-07 | 1992-05-05 | Dow Corning Corporation | Masonry water repellent |
| EP0796826A1 (de) | 1996-03-19 | 1997-09-24 | Dow Corning Limited | Verfahren zur Hydrophobierung von Gips |
| EP0819663B1 (de) | 1996-07-17 | 2001-03-21 | Dow Corning Limited | Gipsmischung, die ein hydrophobes Additiv enthält, und Verfahren zur Hydrophobierung von Gips |
| EP0819663A1 (de) | 1996-07-17 | 1998-01-21 | Dow Corning Limited | Gipsmischung, die ein hydrophobes Additiv enthält, und Verfahren zur Hydrophobierung von Gips |
| WO2000047536A1 (fr) | 1999-02-12 | 2000-08-17 | Lafarge Platres | Element de construction prefabrique a base de platre, presentant une resistance a l'eau |
| EP1112986A1 (de) | 1999-12-30 | 2001-07-04 | United States Gypsum Company | Verwendung von Polymethylhydrogensiloxan zur Herstellung von wasserbeständige Gipsgegenstände und Gips/Holzfaser-Bauplatte und Gipsbauplatte |
| US6610782B1 (en) * | 2001-11-20 | 2003-08-26 | Lindley Laboratories, Inc. | Binary silane emulsions for rendering absorbent substrates water repellant |
| DE10220659A1 (de) | 2002-05-09 | 2003-11-27 | Wacker Chemie Gmbh | Behandlung von Gips mit H-Siloxan und Stärkeether |
| US20060107876A1 (en) | 2004-11-25 | 2006-05-25 | Wacker-Chemie Gmbh | Glycol-functional siloxane mixture |
| WO2007009935A2 (en) | 2005-07-15 | 2007-01-25 | Dow Corning Corporation | Hydrophobing minerals and filler materials |
| US20070028809A1 (en) | 2005-08-08 | 2007-02-08 | Wacker Chemical Corporation | Water repellant gypsum compositions |
| GB2433497A (en) | 2005-12-20 | 2007-06-27 | Dow Corning | Hydrophobic gypsum |
| WO2009030538A1 (de) * | 2007-08-28 | 2009-03-12 | Evonik Degussa Gmbh | Wässrige silansysteme basierend auf bis(trialkoxysilylalkyl)aminen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9040608B2 (en) | 2010-04-01 | 2015-05-26 | Evonik Degussa Gmbh | Curable mixture |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2012147665A (ru) | 2014-05-20 |
| JP2013523593A (ja) | 2013-06-17 |
| US20130092052A1 (en) | 2013-04-18 |
| DE102010003869A1 (de) | 2011-10-13 |
| EP2558539A1 (de) | 2013-02-20 |
| CN102939341A (zh) | 2013-02-20 |
| KR20130040886A (ko) | 2013-04-24 |
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