WO2011128129A1 - Utilisation de cocondensats aqueux alkyle-fonctionnalisés et amino-fonctionnalisés contenant du silicium pour l'hydrophobisation dans la masse de matériaux de construction minéraux - Google Patents

Utilisation de cocondensats aqueux alkyle-fonctionnalisés et amino-fonctionnalisés contenant du silicium pour l'hydrophobisation dans la masse de matériaux de construction minéraux Download PDF

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Publication number
WO2011128129A1
WO2011128129A1 PCT/EP2011/052108 EP2011052108W WO2011128129A1 WO 2011128129 A1 WO2011128129 A1 WO 2011128129A1 EP 2011052108 W EP2011052108 W EP 2011052108W WO 2011128129 A1 WO2011128129 A1 WO 2011128129A1
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Prior art keywords
water
condensate
gypsum
building material
alkaline earth
Prior art date
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PCT/EP2011/052108
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German (de)
English (en)
Inventor
Manuel Friedel
Spomenko Ljesic
Original Assignee
Evonik Degussa Gmbh
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Application filed by Evonik Degussa Gmbh filed Critical Evonik Degussa Gmbh
Publication of WO2011128129A1 publication Critical patent/WO2011128129A1/fr

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Classifications

    • 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
    • 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
    • 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
    • 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
    • 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"
    • 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
    • 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

Definitions

  • the invention relates to the use of aqueous amino- and alkyl-functional silicin-containing co-condensates for hydrophobicization, preferably for the mass hydrophobization of mineral-based plastics, in particular mineral-containing and / or alkaline earth metal-containing and essentially non-aqueous. silicate building materials, preferably gypsum.
  • Gypsum is used under various conditions of use as a construction and material. The expert knows that gypsum is umsulfat Calci, in different
  • Hydration levels may be present. Due to the easy drainability
  • 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 plasterboard and
  • Gypsum fiberboards are often made by premixing gypsum anhydrite or hemihydrate in water and spreading the resulting gypsum slurry onto large ones
  • 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 an aqueous system or a readily water-soluble, or
  • 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 12986 relates to the use of hydridically substituted siloxanes and a catalyst such as Portland cement.
  • 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.
  • a porous gypsum is formed.
  • 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 find a composition which allows the hydrophobing of mineral building materials, in particular of gypsum, in the mass without releasing harmful volatiles in too high a concentration and / or without using an additional catalyst.
  • the invention relates to the use of a composition for
  • Massenhydrophobitation of mineral building materials containing substantially as a water repellent at least one water-soluble amino- and alkyl-functional co-condensate and water, in particular the co-condensate amino- and / or alkyl-functional alkoxysilanes, and has crosslinking structural elements which form chain-like, cyclic and / or crosslinked structures, wherein at least one structure of the co-condensate in idealized form corresponds to the general formula I,
  • h * 0, 1 or 2
  • j 0, 1 or 2
  • n 0, 1 or 2
  • 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 is 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 hydrogen or a linear or
  • R 3 and / or R 5 are independently a linear or branched alkyl radical
  • - HX represents an acid, where X is an inorganic or organic
  • h, I and k in formula IIa may independently and also m or p in formula IIb independently correspond to a number selected from 1, 2, 3, 4, 5 or 6.
  • m 2
  • the expert is familiar with known conventional acid residues, for example, by adding HCl, HNO3, H 2 SO 4 , H 3 PO 4 , formic acid, acetic acid and other common acids can form.
  • co-condensate in particular of the formula I, is derived from alkoxysilanes, such as, for example, from at least one aminoalkoxysilane of the formula
  • Preferred co-condensates in particular of the formula I, include:
  • Preferred co-condensates in particular of the formula I, comprise as purely alkyl-functional structural elements, in particular independently
  • D is a linear, branched or cyclic alkyl radical having 1 to 8 C atoms, preferably a methyl, ethyl, particularly preferably n-propyl, iso-propyl, n-butyl, isobutyl, pentyl, hexyl -, heptyl octyl radical and / or hexadecyl, in each case preferably methyl, n-propyl, iso-propyl, iso-butyl and / or octyl radical.
  • Aminopropyl and iso-butyl-functional co-condensates which may be present partially, preferably fully hydrolyzed.
  • the co-condensates can be linear oligomers with M and D structures, or cyclic structures of D structures or also crosslinked oligomers with 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.
  • co-condensates are particularly suitable for the use according to the invention if they have a ratio of amino-functional groups B to alkyl-functional groups C and / or D in the range from 1:10 to 10: 1, preferably 1 : 5 to 5: 1, most preferably 1: 3 to 3: 1.
  • Co-condensates preferably used have only a low VOC 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 building material is an alkali and / or
  • Alkali metal carbonate or a mixture containing at least one of these
  • CaCO 3 , MgCO 3 , BaCO 3 , Na 2 CO 3 , K 2 CO 3 , calcium sulfate is preferably in
  • a composition comprising the cocondensate, in particular of the formula I, to 0.002 to 10 wt .-% comprising additionally at least one mineral building material and water, wherein ad 100 wt .-% is adjusted with building material and water.
  • a content of co-condensate in the composition of 0.01 to 5 wt .-%, preferably from 0.1 to 4 wt .-%, particularly preferably from 0.1 to 3.5 wt. -%, particularly preferably from 0.2 to 3.0 wt .-%, more preferably from 0.2 to 1, 0 wt .-%, with building material and water ad 100 wt .-%.
  • the co-condensate in particular of the formula I or its hydrolysis and / or condensation products, is preferably mixed with at least one mineral building material, preferably gypsum anhydrite and / or gypsum hemihydrate, if appropriate in the presence of water.
  • at least one mineral building material preferably gypsum anhydrite and / or gypsum hemihydrate, if appropriate in the presence of water.
  • 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 of 4: 1 to 1: 4, preferably about 1: 2.
  • the at least one co-condensate in particular of the formula I, or its hydrolysis and / or
  • Condensation products and optionally water with (ii) a mixture containing at least one mineral building material and water mixed, in particular an alkali and / or alkaline earth metal-containing and substantially non-silicate building material.
  • the invention also provides the use of a mixture comprising at least one co-condensate, water and mineral building material (i) is optionally formed, and (ii) is cured.
  • water that has formed after shaping can be decanted off or by others
  • Measures such as filtration are separated. It will be understood by those skilled in the art that curing may be accomplished by an active drying process as well as at ambient conditions. This process step results in a product or article rendered hydrophobic in the mass.
  • Preferred articles are plasterboard, cured gypsum products or gypsum elements. This can for example also be a stucco, which should be suitable for wet rooms.
  • the invention also provides the use in which (i) at least one cocondensate, in particular of the formula I, having a ratio of the amino group B to alkyl groups C and / or D in the range from 1:10 to 10: 1, preferably 1: 5 to 5: 1, most preferably 1: 3 to 3: 1; mixed with a mixture of (ii) gypsum anhydrite or hemihydrate and 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 preferably homogenized, subsequently the prepared mixture (iv) is transferred to a mold or cured on a belt, which may be a filter belt, and (v).
  • 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 can be added in the inventive use.
  • the invention also provides an article obtainable by the use according to the invention, such as preferably a hydrophobized in the mass element of at least one mineral building material and the co-condensate.
  • an article obtainable by the use according to the invention, such as preferably a hydrophobized in the mass element of at least one mineral building material and the co-condensate.
  • Reflux are submitted under nitrogen blanketing 442 g of 3-aminopropyltriethoxysilane and 356 g of isobutyltrimethoxysilane.
  • 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. Thereafter, the reflux condenser is replaced by a distillation bridge and 50% (about 234 g) of the resulting hydrolysis alcohol distilled off.
  • 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 sump temperature of 50 ° C will now within about 5 hours
  • 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. This mixture can cure for 4 days.
  • Unmodified, commercially available gypsum (eg the company Knauf) is mixed with water in a container.
  • the mass ratio of water to gypsum equals 0.5.
  • the mixture prepared under Example 1 is added and homogenized by stirring. Subsequently, the composition can cure for 4 days.
  • 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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  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne l'utilisation de cocondensats aqueux alkyle-fonctionnalisés et amino-fonctionnalisés contenant du silicium pour l'hydrophobisation, de préférence pour l'hydrophobisation dans la masse, de matériaux de construction minéraux, en particulier de matériaux de construction minéraux contenant un métal alcalin et/ou un métal alcalinoterreux, et ne contenant sensiblement pas de silicates, de préférence du plâtre.
PCT/EP2011/052108 2010-04-12 2011-02-14 Utilisation de cocondensats aqueux alkyle-fonctionnalisés et amino-fonctionnalisés contenant du silicium pour l'hydrophobisation dans la masse de matériaux de construction minéraux WO2011128129A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010003870A DE102010003870A1 (de) 2010-04-12 2010-04-12 Verwendung wässriger Alkyl- und Amino-funktionalisierter Silizium enthaltender Co-Kondensate zur Massenhydrophobierung mineralischer Baustoffe
DE102010003870.9 2010-04-12

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WO2011128129A1 true WO2011128129A1 (fr) 2011-10-20

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8679247B2 (en) 2010-04-01 2014-03-25 Evonik Degussa Gmbh Hydraulic setting mixture for materials having “easy-to-clean” properties
US9040608B2 (en) 2010-04-01 2015-05-26 Evonik Degussa Gmbh Curable mixture
CN104918531A (zh) * 2013-01-17 2015-09-16 伊利诺斯工具制品有限公司 具有电压编码布线的电器锁
US9382383B2 (en) 2011-11-15 2016-07-05 Evonik Degussa Gmbh Composition comprising block cocondensates of propylfunctional alkaline siliconates and silicates, and method for the production thereof
US9528036B2 (en) 2014-04-03 2016-12-27 Evonik Degussa Gmbh Low-voc dialkyl-functional alkoxysiloxanes, processes and use thereof as hydrophobizing impregnating agents for mineral building materials

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3725753B1 (fr) 2019-04-15 2021-09-29 PAGEL Spezial-Beton GmbH & Co. KG Agent hydrophobe pour matériaux minéraux

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US4002800A (en) * 1972-12-01 1977-01-11 Dynamit Nobel Aktiengesellschaft Impregnation of masonry having a neutrally or acidly reaction surface
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
EP0716128A2 (fr) * 1994-12-09 1996-06-12 Hüls Aktiengesellschaft Compositions aqueuses contenant des organopolysiloxanes, leur procédé de préparation et utilisation
EP0796826A1 (fr) 1996-03-19 1997-09-24 Dow Corning Limited Procédé pour rendre hydrophobe le gypse
EP0819663A1 (fr) 1996-07-17 1998-01-21 Dow Corning Limited Mélange de gypse contenant un additive hydrophobe et procédé pour rendre hydrophobe le gypse
US6077966A (en) * 1995-09-08 2000-06-20 Shin-Etsu Chemical Co., Ltd. Preparation of water-soluble organic silicon compounds
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 (fr) 1999-12-30 2001-07-04 United States Gypsum Company Utilisation de polymethylhydrogène siloxane pour la fabrication de produits de gypse résistants à l'eau et panneau en gypse/fibre de bois et panneau en gypse
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 (fr) 2005-07-15 2007-01-25 Dow Corning Corporation Mineraux et matieres de remplissage hydrophobes
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 (fr) * 2007-08-28 2009-03-12 Evonik Degussa Gmbh Systèmes de silanes aqueux à base de bis(trialcoxysilylalkyl)amines

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002800A (en) * 1972-12-01 1977-01-11 Dynamit Nobel Aktiengesellschaft Impregnation of masonry having a neutrally or acidly reaction surface
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
EP0716128A2 (fr) * 1994-12-09 1996-06-12 Hüls Aktiengesellschaft Compositions aqueuses contenant des organopolysiloxanes, leur procédé de préparation et utilisation
US6077966A (en) * 1995-09-08 2000-06-20 Shin-Etsu Chemical Co., Ltd. Preparation of water-soluble organic silicon compounds
EP0796826A1 (fr) 1996-03-19 1997-09-24 Dow Corning Limited Procédé pour rendre hydrophobe le gypse
EP0819663B1 (fr) 1996-07-17 2001-03-21 Dow Corning Limited Mélange de gypse contenant un additive hydrophobe et procédé pour rendre hydrophobe le gypse
EP0819663A1 (fr) 1996-07-17 1998-01-21 Dow Corning Limited Mélange de gypse contenant un additive hydrophobe et procédé pour rendre hydrophobe le gypse
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 (fr) 1999-12-30 2001-07-04 United States Gypsum Company Utilisation de polymethylhydrogène siloxane pour la fabrication de produits de gypse résistants à l'eau et panneau en gypse/fibre de bois et panneau en gypse
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 (fr) 2005-07-15 2007-01-25 Dow Corning Corporation Mineraux et matieres de remplissage hydrophobes
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 (fr) * 2007-08-28 2009-03-12 Evonik Degussa Gmbh Systèmes de silanes aqueux à base de bis(trialcoxysilylalkyl)amines

Cited By (6)

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