Antifoaming compositions for building material mixtures

The present application relates to compositions comprising at least one siloxane and at least one superplasticizer based on polycarboxylate ethers or sulphonates of lignin, melamine or naphthalene or of resins thereof, and to the use of such compositions as or in building-product mixtures or building products, especially mortar mixtures or concrete mixtures.

Flexible watertight roof coatings

The invention provides for the use of coating compositions based on one or more mineral binders, one or more polymers, one or more fillers, and, if desired, one or more additives for producing roof coatings, the coating compositions comprising at least 50% by weight of polymers, based on the dry weight of the polymers and of the mineral binders.

DEFOAMER COMPOSITIONS FOR BUILDING-PRODUCT MIXTURES

The present application relates to compositions comprising at least one siloxane and at least one superplasticizer based on polycarboxylate ethers or sulphonates of lignin, melamine or naphthalene or of resins thereof, and to the use of such compositions as or in building-product mixtures or building products, especially mortar mixtures or concrete mixtures. 4. The composition according to claim 1 , wherein a mass fraction of siloxanes of formula (I) based on a total mass fractions of siloxanes of formula (I) and of superplasticizers is from 0.01 to 10%.5. The composition according to claim 1 , further comprising a binder.6. The composition according to claim 5 , wherein said composition is a building-product mixture.7. The composition according to claim 6 , wherein said building-product mixture is at least one of a mortar mixture or a concrete mixture.8. A method of preparing a building-product mixture comprising adding the composition according to to a binder.9. The composition according to claim 1 , wherein{'sup': '3', 'claim-text': [{'br': None, 'sub': 2', '2', '2', '2', '2', 'x', '2', '2', 'y', 'z, '—CH—CH—CH—O—(CH—CHO—)—(CH—C(R′)O—)—(SO)—R″'}, {'br': None, 'sub': 2', '2', '2', '2', 'x', '2', '2', 'y, '—CH—CH—O—(CH—CHO—)—(CH—C(R′)O—)—R″'}, 'where', 'x=0 to 100,', 'y=0 to 100,', 'z=0 to 100,, 'Rindependently represents alike or unalike radicals from the group comprising'}{'sup': '3', 'with the proviso that x may be alike or unalike y and at least one of the Rradicals has x being not less than y.'}10. The composition according to claim 1 , wherein R′ is substituted with at least one of a haloalky radical and haloaryl radical selected from the group consisting of para-chlorophenyl or Cl—CH— radicals.11. The composition according to claim 1 , wherein R′ is a hydrocarbon radial selected from the group consisting of a CH═CH—CH—O—CH— radical and a methyl group.12. The composition according to claim 3 , wherein Rrepresents ethylene or propylene.13. The composition ...

Composition comprising at least one microorganism and use thereof

A composition contains at least one microorganism which can form a phosphate or carbonate precipitate in an alkaline medium, and at least one calcium source. The composition has at least one silicon compound having at least one Si-atom, at least one C-atom, and at least one H-atom. The composition can be used in a method for producing a construction product.

Novel shrinkage-reducing agents for mineral binders

The invention relates to the use of carboxylic acid-based polyoxyalkylenes as low-emissions shrinkage reducers in mineral binders, to methods of reducing shrinkage and to corresponding compositions.

NOVEL SHRINKAGE-REDUCING AGENTS FOR MINERAL BINDERS

The invention relates to the use of carboxylic acid-based polyoxyalkylenes as low-emissions shrinkage reducers in mineral binders, to methods of reducing shrinkage and to corresponding compositions. 2. The shrinkage-reducing agent according to claim 1 , wherein claim 1 , in formula (I) claim 1 , the R radical is independently an aliphatic hydrocarbyl radical having from 3 to 38 carbon atoms claim 1 , where the carbon chain is terminally substituted by 1 or 2 polyoxyalkylene radicals A and a is the number of polyoxyalkylene radicals A and is 1 or 2.3. The shrinkage-reducing agent according to claim 1 , wherein the R radicals derive from a fatty acid or a dimer fatty acid.4. The shrinkage-reducing agent according to claim 1 , wherein the R radicals derive from hexanoic acid claim 1 , heptanoic acid claim 1 , octanoic acid claim 1 , nonanoic acid claim 1 , decanoic acid claim 1 , undecanoic acid claim 1 , dodecanoic acid claim 1 , tridecanoic acid claim 1 , tetradecanoic acid claim 1 , pentadecanoic acid claim 1 , hexadecanoic acid claim 1 , heptadecanoic acid claim 1 , octadecanoic acid claim 1 , nonadecanoic acid claim 1 , eicosanoic acid claim 1 , 2-ethylhexanecarboxylic acid claim 1 , isononanoic acid claim 1 , 3 claim 1 ,5 claim 1 ,5-trimethylhexanecarboxylic acid claim 1 , neodecanoic acid claim 1 , isotridecanecarboxylic acid claim 1 , isostearic acid claim 1 , undecylenoic acid claim 1 , oleic acid claim 1 , linoleic acid claim 1 , ricinoleic acid claim 1 , linolenic acid claim 1 , benzoic acid claim 1 , cinnamic acid claim 1 , phthalic acid claim 1 , isophthalic acid claim 1 , terephthalic acid claim 1 , cyclohexanecarboxylic acid claim 1 , hexahydrophthalic acid claim 1 , tetrahydrophthalic acid claim 1 , methyltetrahydrophthalic acid or the dimer fatty acids that derive from the aforementioned unsaturated carboxylic acids.5. The shrinkage-reducing agent according to claim 1 , wherein claim 1 , in formula (I) claim 1 , a is less than 3.6. The shrinkage- ...

Water-dispersible polyisocyanate mixtures as additives for concrete

Use of nonionic, water-dispersible polyisocyanates as concrete additives

The present invention relates to a process for preparing mortar/concrete compositions by incorporating into the mortar/concrete compositions either before or during the mixing operation a water-dispersible polyisocyanate which a) has an average isocyanate functionality of 1.8 to 4.0, b) contains 4.0 to 25.0 wt. % of aliphatically and/or cycloaliphatically bound isocyanate groups (calculated as NCO; molecular weight=42) and c) contains 5 to 80 wt. % of ethylene oxide units present within polyether chains (calculated as C 2 H 4 O; molecular weight=44), in which d) the polyether chains contain an average of 5 to 50 ethylene oxide units.

Water-dispersible or water-soluble polyurethanes as additives for building materials

Use of water-dispersible or water-soluble polyether-urethanes, which optionally contain isocyanate groups, as additives for inorganic binders in the preparation of a building material, particularly a high-density or high-strength mortar or concrete composition. The building material resulting from the use of the water- dispersible or water-soluble polyether-urethanes.

Defoamer compositions for building-product mixtures

The present application relates to compositions comprising at least one siloxane and at least one superplasticizer based on polycarboxylate ethers or sulphonates of lignin, melamine or naphthalene or of resins thereof, and to the use of such compositions as or in building-product mixtures or building products, especially mortar mixtures or concrete mixtures.

Dispersing agents

The invention relates to dispersing agents based on copolymers that are obtained by polymerizing a) 5 to 70 percent by weight of one or several monomers from the group comprising ethylenically unsaturated monocarboxylic acids, ethylenically unsaturated carboxylic acid amides, ethylenically unsaturated dicarboxylic acids and the anhydrides thereof, each of which contains 4 to 8 C atoms, and (meth)acrylic acid monoester of dialcohols containing 2 to 8 C atoms, b) 1 to 40 percent by weight of one or several monomers from the group comprising ethylenically unsaturated, sulfonate-functional or sulfate-functional compounds, c) 10 to 80 percent by weight of one or several monomers from the group comprising ethylenically unsaturated compounds of polyethylene glycols containing 1 to 300 ethylene oxide units, and terminal OH groups or -OR' ether groups, R' representing an alkyl radical, aryl radical, alkaryl radical, or aralkyl radical containing 1 to 40 C atoms, d) 5 to 80 percent by weight of one or several monomers from the group comprising ethylenically unsaturated compounds of polyalkylene glycol containing 1 to 300 alkylene oxide units of alkylene groups containing 3 to 4 C atoms, and terminal OH groups or -OR' ether groups, R' representing an alkyl radical, aryl radical, alkaryl radical, or aralkyl radical containing 1 to 40 C atoms, the percentages being in relation to the total weight of the copolymer and the total of the percentages by weight amounting to 100 percent by weight.

Dispersing agents

Dispersing agents especially useful as cement plasticizers are copolymers obtained by polymerizing a) 5 to 70 percent by weight of ethylenically unsaturated monocarboxylic acids, carboxylic acid amides, dicarboxylic acids, or their anhydrides and/or (meth)acrylic acid monoesters of dialcohols, b) 1 to 40 percent ethylenically unsaturated, sulfonate-functional or sulfate-functional compounds, c) 10-80 percent of ethylenically unsaturated compounds of polyethylene glycols containing 1 to 300 ethylene oxide units, and terminal OH groups or —OR′ ether groups, d) 5 to 80 percent of ethylenically unsaturated compounds of polyalkylene glycol containing 1 to 300 C 3-4 alkylene oxide units and terminal OH groups or —OR′ ether groups, the percentages totaling 100 percent by weight.

Water-dispersable or water-soluble polyurethanes as concrete additives

A water dispersible and/or water soluble polyurethane (I) is useful as an additive for hydraulic binding agents for the production of mortars or concrete whereby (I) has (A) an average isocyanate functionality of less than 1.8, an aliphatic and/or cycloaliphatic bound isocyanate group content (calculated as NCO; mol. wt. 42) of 0-10 wt.%. (B) a urethane group content (calculated as NHCOO; mol. wt.. 59) of 2.0 - 25 wt.% and (C) a content of polyether chain bonded ethylene oxide units (calculated as C2H2O; mol. wt. 44) of 30-90 wt.% whereby (D) the polyether chains contain 5-50 ethylene oxide units on average.

Dispersants

flexible and waterproof roof coverings

revestimento de telhado flexíveis e impermeáveis. a invenção proporciona para ou uso de composições de revestimento baseado em um ou mais ligantes minerais, um ou mais polímeros, um ou mais agentes de enchimento e, se desejado, um ou mais aditivos para a produção de revestimento de telhado, as composições de revestimento compreendendo pelo menos 50%, por peso de polímeros baseado no peso seco dos polímeros e dos ligantes minerais. Flexible and waterproof roof cladding. The invention provides for or use of coating compositions based on one or more mineral binders, one or more polymers, one or more fillers and, if desired, one or more roof coating additives, the coating compositions. comprising at least 50% by weight of polymers based on the dry weight of the polymers and mineral binders.

Composition comprising at least one microorganism and use thereof

The present invention relates to a composition comprising at least one microorganism which can form a phosphate or carbonate precipitate in an alkaline medium, and at least one calcium source, wherein the composition is characterized in that it has at least one silicon compound having at least one Si-atom, at least one C-atom and at least one H-atom, and to a method for producing construction products, wherein a corresponding composition is used in the production.

Dilution-stable aqueous compositions for the mass hydrophobization of mineral building materials

The present invention relates to dilution-stable compositions for the mass hydrophobization of mineral building materials, the compositions containing at least one organosiloxane (A), at least one emulsifier (B) and water, wherein the organosiloxane (A) has SiC-bonded C2-C6 alkyl radicals and SiC-bonded C7-C18 alkyl radicals. The invention also relates to processes for preparing the organosiloxane (A) and to hydraulically setting compositions containing the organosiloxane (A).

Verwendung wasserdispergierbarer polyisocyanatgemische als additive für beton

Nuevos reductores de la contracción para aglutinantes minerales

Uso de polioxialquilenos de la Fórmula (I) como agentes reductores de la contracción para aglutinantes minerales y materiales de construcción fabricados a partir de los mismos, **(Ver fórmula)** en donde R, independientemente entre sí, es un radical hidrocarbonado a-valente, lineal o ramificado, saturado, insaturado una vez o varias veces, alifático, cicloalifático o aromático con 3 a 38 átomos de carbono, en donde la cadena hidrocarbonada está sustituida con a radicales polioxialquileno A, a = 1 a 4, n = 0 a 40, m = 0 a 40, con la condición de que la suma de n y m sea = 4 a 80, en donde las unidades designadas con n y m están distribuidas a elección a modo de bloque o estadísticamente en la cadena de poliéter y las unidades designadas con n y m representan los valores medios de la posible distribución estadística de las estructuras realmente presentes.

Wasserdispergierbare bzw. wasserlösliche polyurethane als additive für beton

Dispergiermittel

Dilution-stable aqueous compositions for the mass hydrophobization of mineral building materials

Dilution-stable compositions are useful for the mass hydrophobization of mineral building materials. The compositions contain at least one organosiloxane (A), at least one emulsifier (B), and water. The organosiloxane (A) has SiC-bonded C 2 -C 6 alkyl radicals and SiC-bonded C 7 -C 18 alkyl radicals. Processes can be used for preparing the organosiloxane (A). Hydraulically setting compositions contain the organosiloxane (A).

Neuartige schwindreduzierer für mineralische bindemittel

Composicion que comprende al menos un microorganismo y uso de la misma.

La presente invención se refiere a una composición que comprende al menos un microorganismo capaz de formar un precipitado de fosfato o carbonato en un medio alcalino y opcionalmente al menos una fuente de calcio, en la que la composición se caracteriza porque comprende al menos un compuesto de silicio que comprende al menos una átomo de Si, al menos un átomo de C y al menos un átomo de H, y a un proceso para la producción de productos de construcción basados en materiales de construcción minerales, en el que se emplea una composición correspondiente durante la producción.

Neuartige schwindreduzierer für mineralische bindemittel

Die Erfindung betrifft die Verwendung von Carbonsäure-stämmigen Polyoxyalkylenen als emissionsarme Schwindreduzierer in mineralischen Bindemitteln, Verfahren zur Schwindreduktion und entsprechende Zusammensetzungen.